feat: complete map viewer scene and static CTL pose preview

Complete the interactive mission viewer with environment rendering, audio events, dynamic shadows, free-flight camera controls, and per-component CTL pose sampling.

12 files changed, 4534 insertions, 315 deletions

diff --git a/adapters/fparkan-render-vulkan/shaders/triangle.frag b/adapters/fparkan-render-vulkan/shaders/triangle.frag
index bcc3d43..89896cf 100644
--- a/adapters/fparkan-render-vulkan/shaders/triangle.frag
+++ b/adapters/fparkan-render-vulkan/shaders/triangle.frag
@@ -2,18 +2,132 @@
 
 layout(location = 0) in vec3 in_color;
 layout(location = 1) in vec2 in_uv;
+layout(location = 2) in vec2 in_detail_uv;
+layout(location = 3) in float in_overlay_alpha;
+layout(location = 4) in float in_fog_factor;
+layout(location = 5) in vec3 in_base_diffuse;
+layout(location = 6) in vec3 in_base_specular;
+layout(location = 7) in vec3 in_overlay_diffuse;
+layout(location = 8) in vec3 in_overlay_specular;
 layout(location = 0) out vec4 out_color;
 
 layout(set = 0, binding = 0) uniform sampler2D base_color;
+layout(set = 0, binding = 1) uniform sampler2D base_detail;
+layout(set = 0, binding = 2) uniform sampler2D overlay_color;
+layout(set = 0, binding = 3) uniform sampler2D overlay_detail;
 
-layout(push_constant) uniform AlphaTestConstants {
-    layout(offset = 64)
-    float alpha_cutoff;
-} alpha_test;
+layout(std140, set = 0, binding = 4) uniform FrameConstants {
+    mat4 clip_from_world;
+    vec4 directional_direction[4];
+    vec4 directional_rgb[4];
+    vec4 directional_coefficients[4];
+    vec4 point_position_range;
+    vec4 point_rgb_active;
+    vec4 point_coefficients_active;
+    vec4 lighting_floor;
+    vec4 fog_color;
+    vec4 fog_distances;
+    vec4 camera_position;
+} frame;
+
+layout(push_constant) uniform MaterialConstants {
+    layout(offset = 0) float alpha_cutoff;
+    layout(offset = 4) float diffuse_alpha;
+    layout(offset = 8) float overlay_diffuse_alpha;
+    layout(offset = 12) float directional_r;
+    layout(offset = 16) float directional_g;
+    layout(offset = 20) float directional_b;
+    layout(offset = 24) float additive_r;
+    layout(offset = 28) float additive_g;
+    layout(offset = 32) float additive_b;
+    layout(offset = 36) float overlay_directional_r;
+    layout(offset = 40) float overlay_directional_g;
+    layout(offset = 44) float overlay_directional_b;
+    layout(offset = 48) float overlay_additive_r;
+    layout(offset = 52) float overlay_additive_g;
+    layout(offset = 56) float overlay_additive_b;
+    layout(offset = 60) float base_page_x;
+    layout(offset = 64) float base_page_y;
+    layout(offset = 68) float base_page_w;
+    layout(offset = 72) float base_page_h;
+    layout(offset = 76) float detail_page_x;
+    layout(offset = 80) float detail_page_y;
+    layout(offset = 84) float detail_page_w;
+    layout(offset = 88) float detail_page_h;
+    layout(offset = 92) float overlay_page_x;
+    layout(offset = 96) float overlay_page_y;
+    layout(offset = 100) float overlay_page_w;
+    layout(offset = 104) float overlay_page_h;
+    layout(offset = 108) float overlay_detail_page_x;
+    layout(offset = 112) float overlay_detail_page_y;
+    layout(offset = 116) float overlay_detail_page_w;
+    layout(offset = 120) float overlay_detail_page_h;
+    layout(offset = 124) float material_mode;
+} material;
 
 void main() {
-    out_color = texture(base_color, in_uv) * vec4(in_color, 1.0);
-    if (out_color.a < alpha_test.alpha_cutoff) {
+    vec2 base_uv = vec2(material.base_page_x, material.base_page_y)
+        + in_uv * vec2(material.base_page_w, material.base_page_h);
+    vec2 detail_uv = vec2(material.detail_page_x, material.detail_page_y)
+        + in_detail_uv * vec2(material.detail_page_w, material.detail_page_h);
+    vec2 overlay_uv = vec2(material.overlay_page_x, material.overlay_page_y)
+        + in_uv * vec2(material.overlay_page_w, material.overlay_page_h);
+    vec2 overlay_detail_uv = vec2(material.overlay_detail_page_x, material.overlay_detail_page_y)
+        + in_detail_uv * vec2(material.overlay_detail_page_w, material.overlay_detail_page_h);
+    vec4 base = texture(base_color, base_uv);
+    vec4 detail = texture(base_detail, detail_uv);
+    vec4 overlay = texture(overlay_color, overlay_uv);
+    vec4 overlay_detail_sample = texture(overlay_detail, overlay_detail_uv);
+    int mode = int(round(material.material_mode));
+    int combiner_mode = mode & 3;
+
+    // Native sky mode 4 combines nebula and stars as
+    // mix(TEX0.rgb, TEX1.rgb, TEX1.a) * DIFFUSE.rgb and carries DIFFUSE.a
+    // through as the pass alpha.
+    if (combiner_mode == 2) {
+        vec3 sky_rgb = mix(base.rgb, detail.rgb, clamp(detail.a, 0.0, 1.0));
+        out_color = vec4(sky_rgb * in_color, clamp(in_overlay_alpha, 0.0, 1.0));
+        if (out_color.a < material.alpha_cutoff) {
+            discard;
+        }
+        return;
+    }
+
+    // Native terrain mode 3 combines the base texture and the lightmap
+    // without the regular terrain 2x combiner or NdotL calculation.
+    if (combiner_mode == 3) {
+        vec3 lightmap_lighting = max(
+            vec3(material.additive_r, material.additive_g, material.additive_b),
+            frame.lighting_floor.rgb
+        );
+        vec3 vertex_rgb = base.rgb * detail.rgb * lightmap_lighting * in_color;
+        vec3 final_rgb = mix(vertex_rgb, frame.fog_color.rgb, in_fog_factor);
+        out_color = vec4(final_rgb, base.a * material.diffuse_alpha);
+        if (out_color.a < material.alpha_cutoff) {
+            discard;
+        }
+        return;
+    }
+
+    float overlay_alpha = clamp(
+        in_overlay_alpha * material.overlay_diffuse_alpha,
+        0.0,
+        1.0
+    );
+    vec3 base_rgb = 2.0 * base.rgb * detail.rgb;
+    vec3 overlay_rgb = 2.0 * overlay.rgb * overlay_detail_sample.rgb;
+    vec3 base_lit_rgb = base_rgb * in_base_diffuse + in_base_specular;
+    vec3 overlay_lit_rgb = overlay_rgb * in_overlay_diffuse + in_overlay_specular;
+    vec3 lit_rgb = mix(base_lit_rgb, overlay_lit_rgb, overlay_alpha);
+    vec3 vertex_rgb = lit_rgb * in_color;
+    vec3 final_rgb = combiner_mode == 0
+        ? mix(vertex_rgb, frame.fog_color.rgb, in_fog_factor)
+        : vertex_rgb;
+    float final_alpha = combiner_mode == 1
+        ? base.a * material.diffuse_alpha * in_overlay_alpha
+        : base.a * material.diffuse_alpha;
+    out_color = vec4(final_rgb, final_alpha);
+    if (out_color.a < material.alpha_cutoff) {
         discard;
     }
 }
diff --git a/adapters/fparkan-render-vulkan/shaders/triangle.frag.spv b/adapters/fparkan-render-vulkan/shaders/triangle.frag.spv
index 46b1e6f..8b867bb 100644
--- a/adapters/fparkan-render-vulkan/shaders/triangle.frag.spv
+++ b/adapters/fparkan-render-vulkan/shaders/triangle.frag.spv
diff --git a/adapters/fparkan-render-vulkan/shaders/triangle.vert b/adapters/fparkan-render-vulkan/shaders/triangle.vert
index dfcdccb..201c31a 100644
--- a/adapters/fparkan-render-vulkan/shaders/triangle.vert
+++ b/adapters/fparkan-render-vulkan/shaders/triangle.vert
@@ -2,17 +2,273 @@
 
 layout(location = 0) in vec3 in_position;
 layout(location = 1) in vec3 in_color;
-layout(location = 2) in vec2 in_uv;
+layout(location = 2) in vec3 in_normal;
+layout(location = 3) in vec2 in_uv;
+layout(location = 4) in vec2 in_detail_uv;
+layout(location = 5) in float in_overlay_alpha;
 
 layout(location = 0) out vec3 out_color;
 layout(location = 1) out vec2 out_uv;
+layout(location = 2) out vec2 out_detail_uv;
+layout(location = 3) out float out_overlay_alpha;
+// Native D3D vertex fog is written to SPECULAR.a and interpolated by the
+// fixed-function rasterizer.  Keep the existing varying slot, but carry only
+// that scalar instead of recomputing distance in the fragment stage.
+layout(location = 4) out float out_fog_factor;
+layout(location = 5) out vec3 out_base_diffuse;
+layout(location = 6) out vec3 out_base_specular;
+layout(location = 7) out vec3 out_overlay_diffuse;
+layout(location = 8) out vec3 out_overlay_specular;
 
-layout(push_constant) uniform CameraConstants {
+layout(std140, set = 0, binding = 4) uniform FrameConstants {
     mat4 clip_from_world;
-} camera;
+    vec4 directional_direction[4];
+    vec4 directional_rgb[4];
+    vec4 directional_coefficients[4];
+    vec4 point_position_range;
+    vec4 point_rgb_active;
+    vec4 point_coefficients_active;
+    vec4 lighting_floor;
+    vec4 fog_color;
+    vec4 fog_distances;
+    vec4 camera_position;
+} frame;
+
+layout(std430, set = 0, binding = 5) readonly buffer MaterialSpecular {
+    vec4 base;
+    vec4 overlay;
+} material_specular;
+
+layout(push_constant) uniform MaterialConstants {
+    layout(offset = 0) float alpha_cutoff;
+    layout(offset = 4) float diffuse_alpha;
+    layout(offset = 8) float overlay_diffuse_alpha;
+    layout(offset = 12) float directional_r;
+    layout(offset = 16) float directional_g;
+    layout(offset = 20) float directional_b;
+    layout(offset = 24) float additive_r;
+    layout(offset = 28) float additive_g;
+    layout(offset = 32) float additive_b;
+    layout(offset = 36) float overlay_directional_r;
+    layout(offset = 40) float overlay_directional_g;
+    layout(offset = 44) float overlay_directional_b;
+    layout(offset = 48) float overlay_additive_r;
+    layout(offset = 52) float overlay_additive_g;
+    layout(offset = 56) float overlay_additive_b;
+    layout(offset = 60) float base_page_x;
+    layout(offset = 64) float base_page_y;
+    layout(offset = 68) float base_page_w;
+    layout(offset = 72) float base_page_h;
+    layout(offset = 76) float detail_page_x;
+    layout(offset = 80) float detail_page_y;
+    layout(offset = 84) float detail_page_w;
+    layout(offset = 88) float detail_page_h;
+    layout(offset = 92) float overlay_page_x;
+    layout(offset = 96) float overlay_page_y;
+    layout(offset = 100) float overlay_page_w;
+    layout(offset = 104) float overlay_page_h;
+    layout(offset = 108) float overlay_detail_page_x;
+    layout(offset = 112) float overlay_detail_page_y;
+    layout(offset = 116) float overlay_detail_page_w;
+    layout(offset = 120) float overlay_detail_page_h;
+    layout(offset = 124) float material_mode;
+} material;
+
+struct LightingTerms {
+    vec3 diffuse;
+    vec3 specular;
+};
+
+float native_range_compress(float value) {
+    if (value <= 1.0) {
+        return value;
+    }
+    if (value <= 7.0) {
+        return value / 6.0 + 5.0 / 6.0;
+    }
+    return 2.0;
+}
+
+float native_specular_curve(float value) {
+    if (value <= 1.0) {
+        return 0.8 * value;
+    }
+    if (value <= 3.0) {
+        return 0.1 * value + 0.7;
+    }
+    return 1.0;
+}
+
+// The original callback uses the reflected vector and squares the cosine for
+// power-1 iterations.  A bounded loop keeps the native byte power while
+// remaining valid for every material record.
+float native_specular_power(float cosine, float power) {
+    // CShade enables specular only when the material power byte is non-zero.
+    if (power <= 0.0 || cosine <= 0.0) {
+        return 0.0;
+    }
+    float result = cosine;
+    int iterations = clamp(int(power) - 1, 0, 254);
+    for (int index = 0; index < 254; ++index) {
+        if (index >= iterations) {
+            break;
+        }
+        result *= result;
+    }
+    return result;
+}
+
+float native_fog_factor(vec3 world_position) {
+    float fog_span = frame.fog_distances.y - frame.fog_distances.x;
+    float distance_to_camera = distance(world_position, frame.camera_position.xyz);
+    if (fog_span <= 0.000001 || distance_to_camera <= frame.fog_distances.x) {
+        return 0.0;
+    }
+    return clamp((distance_to_camera - frame.fog_distances.x) / fog_span, 0.0, 1.0);
+}
+
+vec3 normalized_or(vec3 value, vec3 fallback) {
+    float length_squared = dot(value, value);
+    return length_squared > 0.0000001 ? value * inversesqrt(length_squared) : fallback;
+}
+
+vec3 specular_from_light(
+    vec3 normal,
+    vec3 view_direction,
+    vec3 light_direction,
+    vec3 light_rgb,
+    vec3 material_rgb,
+    float power,
+    float attenuation
+) {
+    float ndotl = dot(normal, light_direction);
+    if (ndotl <= 0.0 || attenuation <= 0.0) {
+        return vec3(0.0);
+    }
+    vec3 reflection = reflect(-light_direction, normal);
+    float cosine = max(dot(reflection, view_direction), 0.0);
+    return material_rgb * light_rgb * native_specular_power(cosine, power) * attenuation;
+}
+
+LightingTerms native_material_lighting(
+    vec3 world_position,
+    vec3 normal,
+    vec3 directional_rgb,
+    vec3 additive_rgb,
+    vec3 specular_rgb,
+    float specular_power
+) {
+    vec3 accumulated = additive_rgb;
+    vec3 specular = vec3(0.0);
+    vec3 view_direction = normalized_or(frame.camera_position.xyz - world_position, vec3(0.0, 0.0, 1.0));
+    for (int index = 0; index < 4; ++index) {
+        vec4 direction_record = frame.directional_direction[index];
+        vec4 rgb_record = frame.directional_rgb[index];
+        if (direction_record.w <= 0.5 || rgb_record.w <= 0.5) {
+            continue;
+        }
+        vec3 light_direction = normalized_or(-direction_record.xyz, vec3(0.0, 0.0, 1.0));
+        float ndotl = max(dot(normal, light_direction), 0.0);
+        accumulated += ndotl * directional_rgb * rgb_record.rgb;
+        specular += specular_from_light(
+            normal,
+            view_direction,
+            light_direction,
+            rgb_record.rgb,
+            specular_rgb,
+            specular_power,
+            1.0
+        );
+    }
+    vec4 point_position_range = frame.point_position_range;
+    vec4 point_rgb_active = frame.point_rgb_active;
+    vec4 point_coefficients_active = frame.point_coefficients_active;
+    vec3 to_light = point_position_range.xyz - world_position;
+    float distance_squared = dot(to_light, to_light);
+    float range = point_position_range.w;
+    if (point_rgb_active.w > 0.5 && range > 0.0 && distance_squared <= range * range) {
+        float distance_to_light = sqrt(distance_squared);
+        if (distance_to_light > 0.000001) {
+            vec3 light_direction = to_light / distance_to_light;
+            float ndotl = dot(normal, light_direction);
+            if (ndotl > 0.0) {
+                float t = (range - distance_to_light) / range;
+                float attenuation = point_coefficients_active.x
+                    + point_coefficients_active.y * t
+                    + point_coefficients_active.z * t * t;
+                attenuation = max(attenuation, 0.0);
+                accumulated += ndotl * directional_rgb * point_rgb_active.rgb * attenuation;
+                specular += specular_from_light(
+                    normal,
+                    view_direction,
+                    light_direction,
+                    point_rgb_active.rgb,
+                    specular_rgb,
+                    specular_power,
+                    attenuation
+                );
+            }
+        }
+    }
+    accumulated = max(accumulated, frame.lighting_floor.rgb);
+    vec3 compressed = vec3(
+        native_range_compress(accumulated.r),
+        native_range_compress(accumulated.g),
+        native_range_compress(accumulated.b)
+    );
+    LightingTerms terms;
+    terms.diffuse = min(compressed, vec3(1.0));
+    vec3 total_specular = specular + max(compressed - vec3(1.0), vec3(0.0));
+    terms.specular = vec3(
+        native_specular_curve(total_specular.r),
+        native_specular_curve(total_specular.g),
+        native_specular_curve(total_specular.b)
+    );
+    return terms;
+}
 
 void main() {
     out_color = in_color;
     out_uv = in_uv;
-    gl_Position = camera.clip_from_world * vec4(in_position, 1.0);
+    out_detail_uv = in_detail_uv;
+    out_overlay_alpha = in_overlay_alpha;
+    out_fog_factor = native_fog_factor(in_position);
+    int mode = int(round(material.material_mode));
+    int combiner_mode = mode & 3;
+    if (combiner_mode == 0) {
+        LightingTerms base_terms = native_material_lighting(
+            in_position,
+            in_normal,
+            vec3(material.directional_r, material.directional_g, material.directional_b),
+            vec3(material.additive_r, material.additive_g, material.additive_b),
+            material_specular.base.rgb,
+            material_specular.base.w
+        );
+        LightingTerms overlay_terms = native_material_lighting(
+            in_position,
+            in_normal,
+            vec3(material.overlay_directional_r, material.overlay_directional_g, material.overlay_directional_b),
+            vec3(material.overlay_additive_r, material.overlay_additive_g, material.overlay_additive_b),
+            material_specular.overlay.rgb,
+            material_specular.overlay.w
+        );
+        out_base_diffuse = base_terms.diffuse;
+        out_base_specular = base_terms.specular;
+        out_overlay_diffuse = overlay_terms.diffuse;
+        out_overlay_specular = overlay_terms.specular;
+    } else {
+        out_base_diffuse = vec3(1.0);
+        out_base_specular = vec3(0.0);
+        out_overlay_diffuse = vec3(1.0);
+        out_overlay_specular = vec3(0.0);
+    }
+    vec4 clip_position = frame.clip_from_world * vec4(in_position, 1.0);
+    // Sky far-depth is a Vulkan projection choice for layers authored around
+    // the camera. Keep world positions, normals, and UVs intact while placing
+    // the resulting primitive at the far depth; this does not assert native
+    // D3D depth-bit equivalence.
+    if ((mode & 4) != 0) {
+        clip_position.z = clip_position.w;
+    }
+    gl_Position = clip_position;
 }
diff --git a/adapters/fparkan-render-vulkan/shaders/triangle.vert.spv b/adapters/fparkan-render-vulkan/shaders/triangle.vert.spv
index 84d1d9f..9574e1c 100644
--- a/adapters/fparkan-render-vulkan/shaders/triangle.vert.spv
+++ b/adapters/fparkan-render-vulkan/shaders/triangle.vert.spv
diff --git a/adapters/fparkan-render-vulkan/src/asset_mesh.rs b/adapters/fparkan-render-vulkan/src/asset_mesh.rs
index 236361b..4ce86eb 100644
--- a/adapters/fparkan-render-vulkan/src/asset_mesh.rs
+++ b/adapters/fparkan-render-vulkan/src/asset_mesh.rs
@@ -1,16 +1,24 @@
 //! Format-to-GPU geometry bridge for the initial static asset renderer.
 
 use crate::{VulkanStaticDrawRange, VulkanStaticMesh, VulkanStaticVertex};
+use fparkan_animation::{NodePoseBuffer, Pose};
 use fparkan_msh::{
     draw_batches, node38_fallback_hierarchy, node38_sampled_hierarchy, selected_slot, Group, Lod,
     ModelAsset, NodeId,
 };
-use fparkan_render::{LegacyIron3dEulerTransform, LegacyPipelineState};
+use fparkan_render::{LegacyDepthMode, LegacyIron3dEulerTransform, LegacyPipelineState};
 use fparkan_terrain_format::LandMeshDocument;
 
 /// Legacy `Land.msh` stored-height to mission-world-height scale.
 const LEGACY_LAND_HEIGHT_SCALE: f32 = 1.0 / 32.0;
 
+fn world_pipeline_state() -> LegacyPipelineState {
+    LegacyPipelineState {
+        depth: LegacyDepthMode::TestWrite,
+        ..LegacyPipelineState::default()
+    }
+}
+
 /// Error returned when a validated MSH cannot enter the current static GPU path.
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub enum VulkanAssetMeshError {
@@ -22,6 +30,22 @@ pub enum VulkanAssetMeshError {
     DegenerateViewExtent,
     /// The indexed model exceeds the current 16-bit Vulkan input contract.
     IndexOutOfRange,
+    /// A caller-supplied node pose buffer has a different length than its model.
+    NodePoseCountMismatch {
+        /// Number of nodes in the model.
+        expected: usize,
+        /// Number of supplied node poses.
+        actual: usize,
+    },
+}
+
+/// Evaluated world pose of one standard Node38 node in model-local space.
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub struct VulkanNodePose {
+    /// Translation in the model's local coordinate system.
+    pub translation: [f32; 3],
+    /// Unit quaternion in `[x, y, z, w]` order.
+    pub rotation: [f32; 4],
 }
 
 /// Shared XY frame for a deliberately top-down diagnostic static scene.
@@ -83,6 +107,10 @@ impl std::fmt::Display for VulkanAssetMeshError {
             Self::NonFinitePosition => write!(f, "MSH contains a non-finite position"),
             Self::DegenerateViewExtent => write!(f, "MSH has a degenerate XY view extent"),
             Self::IndexOutOfRange => write!(f, "MSH index exceeds the static Vulkan u16 contract"),
+            Self::NodePoseCountMismatch { expected, actual } => write!(
+                f,
+                "node pose buffer has {actual} poses, but the MSH has {expected} nodes"
+            ),
         }
     }
 }
@@ -153,8 +181,9 @@ pub fn project_msh_to_static_mesh_in_xy_frame(
                     frame.project(transformed)[1],
                     0.0,
                 ],
-                color: [0.82, 0.72, 0.31],
-                // Iron3D stores Res5 UV0 as signed fixed point with 1/1024 units.
+                color: [1.0, 1.0, 1.0],
+                normal: model_normal(model, index),
+                // Iron3D stores Res5 UV0 as unsigned fixed point with 1/1024 units.
                 // Models that omit this optional stream retain the static viewer's
                 // XY planar fallback instead of receiving fabricated raw UV values.
                 uv: model
@@ -164,6 +193,8 @@ pub fn project_msh_to_static_mesh_in_xy_frame(
                     .map_or(frame.planar_uv(transformed), |uv| {
                         [f32::from(uv[0]) / 1024.0, f32::from(uv[1]) / 1024.0]
                     }),
+                detail_uv: model_detail_uv(model, index),
+                overlay_alpha: 0.0,
             })
         })
         .collect::<Result<Vec<_>, _>>()?;
@@ -282,6 +313,17 @@ pub fn project_msh_to_static_mesh_in_world_space_with_transform(
     transform: LegacyIron3dEulerTransform,
     scale: [f32; 3],
 ) -> Result<VulkanStaticMesh, VulkanAssetMeshError> {
+    project_msh_to_static_mesh_in_world_space_with_transform_and_root_pose(
+        model, transform, scale, None,
+    )
+}
+
+fn project_msh_to_static_mesh_in_world_space_with_transform_and_root_pose(
+    model: &ModelAsset,
+    transform: LegacyIron3dEulerTransform,
+    scale: [f32; 3],
+    root_pose: Option<Pose>,
+) -> Result<VulkanStaticMesh, VulkanAssetMeshError> {
     if !transform
         .translation
         .iter()
@@ -300,12 +342,35 @@ pub fn project_msh_to_static_mesh_in_world_space_with_transform(
             if !position.iter().all(|value| value.is_finite()) {
                 return Err(VulkanAssetMeshError::NonFinitePosition);
             }
+            let local_position = root_pose.map_or(
+                Pose {
+                    translation: *position,
+                    rotation: [0.0, 0.0, 0.0, 1.0],
+                },
+                |root| {
+                    compose_pose(
+                        root,
+                        Pose {
+                            translation: *position,
+                            rotation: [0.0, 0.0, 0.0, 1.0],
+                        },
+                    )
+                },
+            );
             let position = transform
-                .try_transform_scaled_point(*position, scale)
+                .try_transform_scaled_point(local_position.translation, scale)
                 .ok_or(VulkanAssetMeshError::NonFinitePosition)?;
             Ok(VulkanStaticVertex {
                 position,
-                color: [0.82, 0.72, 0.31],
+                color: [1.0, 1.0, 1.0],
+                normal: transform_normal(
+                    transform,
+                    root_pose.map_or(model_normal(model, index), |root| {
+                        rotate_by_quaternion(model_normal(model, index), root.rotation)
+                    }),
+                    scale,
+                )
+                .ok_or(VulkanAssetMeshError::NonFinitePosition)?,
                 uv: model
                     .uv0
                     .as_ref()
@@ -313,6 +378,8 @@ pub fn project_msh_to_static_mesh_in_world_space_with_transform(
                     .map_or([0.0, 0.0], |uv| {
                         [f32::from(uv[0]) / 1024.0, f32::from(uv[1]) / 1024.0]
                     }),
+                detail_uv: model_detail_uv(model, index),
+                overlay_alpha: 0.0,
             })
         })
         .collect::<Result<Vec<_>, _>>()?;
@@ -347,6 +414,8 @@ pub fn project_msh_to_static_mesh_in_world_space_with_node_fallback_poses(
         transform,
         scale,
         node38_fallback_hierarchy(model),
+        None,
+        false,
     )
 }
 
@@ -372,6 +441,203 @@ pub fn project_msh_to_static_mesh_in_world_space_with_node_sampled_poses(
         transform,
         scale,
         node38_sampled_hierarchy(model, animation_frame),
+        None,
+        false,
+    )
+}
+
+/// Projects a Node38 model using a hierarchy sampled by the caller.
+///
+/// This keeps geometry in sync with any sockets or bounds that the caller
+/// derives from the same pose buffer.
+///
+/// # Errors
+///
+/// Returns [`VulkanAssetMeshError`] when source geometry or transforms cannot
+/// be represented by the current static Vulkan input contract.
+pub fn project_msh_to_static_mesh_in_world_space_with_node_pose_buffer(
+    model: &ModelAsset,
+    transform: LegacyIron3dEulerTransform,
+    scale: [f32; 3],
+    node_poses: &NodePoseBuffer,
+) -> Result<VulkanStaticMesh, VulkanAssetMeshError> {
+    project_msh_to_static_mesh_in_world_space_with_node_poses(
+        model,
+        transform,
+        scale,
+        Some(node_poses.clone()),
+        None,
+        false,
+    )
+}
+
+/// Projects a mounted Node38 model using a caller-sampled hierarchy and the
+/// parent socket pose derived from its own caller-sampled hierarchy.
+///
+/// # Errors
+///
+/// Returns [`VulkanAssetMeshError`] when source geometry or transforms cannot
+/// be represented by the current static Vulkan input contract.
+pub fn project_msh_to_static_mesh_in_world_space_with_node_pose_buffer_and_mount(
+    model: &ModelAsset,
+    transform: LegacyIron3dEulerTransform,
+    scale: [f32; 3],
+    node_poses: &NodePoseBuffer,
+    mount_pose: VulkanNodePose,
+) -> Result<VulkanStaticMesh, VulkanAssetMeshError> {
+    project_msh_to_static_mesh_in_world_space_with_node_poses(
+        model,
+        transform,
+        scale,
+        Some(node_poses.clone()),
+        Some(Pose {
+            translation: mount_pose.translation,
+            rotation: mount_pose.rotation,
+        }),
+        true,
+    )
+}
+
+/// Evaluates one Node38 node pose for a unit mount socket.
+#[must_use]
+pub fn node38_pose(
+    model: &ModelAsset,
+    animation_frame: Option<u16>,
+    node_index: usize,
+) -> Option<VulkanNodePose> {
+    node38_pose_with_root_replacement(model, animation_frame, node_index, false)
+}
+
+/// Evaluates one Node38 socket relative to a replacement root pose.
+///
+/// This is used when the model itself is already mounted: node zero belongs to
+/// the parent socket and must not be composed a second time.
+#[must_use]
+pub fn node38_pose_relative_to_root(
+    model: &ModelAsset,
+    animation_frame: Option<u16>,
+    node_index: usize,
+) -> Option<VulkanNodePose> {
+    node38_pose_with_root_replacement(model, animation_frame, node_index, true)
+}
+
+/// Returns one node's evaluated pose from an already sampled hierarchy.
+#[must_use]
+pub fn node38_pose_from_hierarchy(
+    hierarchy: &NodePoseBuffer,
+    node_index: usize,
+) -> Option<VulkanNodePose> {
+    node38_pose_value_from_hierarchy(hierarchy, node_index, false).map(vulkan_node_pose)
+}
+
+/// Returns a node's pose relative to a root pose that will be replaced by a
+/// parent socket.
+#[must_use]
+pub fn node38_pose_relative_to_root_from_hierarchy(
+    hierarchy: &NodePoseBuffer,
+    node_index: usize,
+) -> Option<VulkanNodePose> {
+    node38_pose_value_from_hierarchy(hierarchy, node_index, true).map(vulkan_node_pose)
+}
+
+fn node38_pose_value_from_hierarchy(
+    hierarchy: &NodePoseBuffer,
+    node_index: usize,
+    root_replaced: bool,
+) -> Option<Pose> {
+    let pose = *hierarchy.poses.get(node_index)?;
+    if !root_replaced {
+        return Some(pose);
+    }
+    if node_index == 0 {
+        return Some(Pose::default());
+    }
+    let root = *hierarchy.poses.first()?;
+    Some(compose_pose(inverse_pose(root), pose))
+}
+
+fn vulkan_node_pose(pose: Pose) -> VulkanNodePose {
+    VulkanNodePose {
+        translation: pose.translation,
+        rotation: pose.rotation,
+    }
+}
+
+fn node38_pose_with_root_replacement(
+    model: &ModelAsset,
+    animation_frame: Option<u16>,
+    node_index: usize,
+    root_replaced: bool,
+) -> Option<VulkanNodePose> {
+    let hierarchy = animation_frame.map_or_else(
+        || node38_fallback_hierarchy(model),
+        |frame| node38_sampled_hierarchy(model, frame),
+    )?;
+    let hierarchy = if root_replaced {
+        strip_node38_root_pose(hierarchy)?
+    } else {
+        hierarchy
+    };
+    let pose = *hierarchy.poses.get(node_index)?;
+    Some(VulkanNodePose {
+        translation: pose.translation,
+        rotation: pose.rotation,
+    })
+}
+
+/// Projects a mounted Node38 model while preserving its local hierarchy.
+///
+/// The native unit loader mounts a child root at the parent's selected local
+/// socket. The child root node itself is a socket placeholder and is hidden;
+/// nodes `1..` retain their evaluated local hierarchy and are composed with the
+/// parent's world socket pose. The mission transform remains applied once.
+///
+/// # Errors
+///
+/// Returns [`VulkanAssetMeshError`] when geometry or transforms cannot be
+/// represented by the static input contract.
+pub fn project_msh_to_static_mesh_in_world_space_with_node_sampled_poses_and_mount(
+    model: &ModelAsset,
+    transform: LegacyIron3dEulerTransform,
+    scale: [f32; 3],
+    animation_frame: u16,
+    mount_pose: VulkanNodePose,
+) -> Result<VulkanStaticMesh, VulkanAssetMeshError> {
+    project_msh_to_static_mesh_in_world_space_with_node_poses(
+        model,
+        transform,
+        scale,
+        node38_sampled_hierarchy(model, animation_frame),
+        Some(Pose {
+            translation: mount_pose.translation,
+            rotation: mount_pose.rotation,
+        }),
+        true,
+    )
+}
+
+/// Projects a mounted Node38 model at its decoded fallback pose.
+///
+/// # Errors
+///
+/// Returns [`VulkanAssetMeshError`] when geometry or transforms cannot be
+/// represented by the static input contract.
+pub fn project_msh_to_static_mesh_in_world_space_with_node_fallback_poses_and_mount(
+    model: &ModelAsset,
+    transform: LegacyIron3dEulerTransform,
+    scale: [f32; 3],
+    mount_pose: VulkanNodePose,
+) -> Result<VulkanStaticMesh, VulkanAssetMeshError> {
+    project_msh_to_static_mesh_in_world_space_with_node_poses(
+        model,
+        transform,
+        scale,
+        node38_fallback_hierarchy(model),
+        Some(Pose {
+            translation: mount_pose.translation,
+            rotation: mount_pose.rotation,
+        }),
+        true,
     )
 }
 
@@ -380,7 +646,17 @@ fn project_msh_to_static_mesh_in_world_space_with_node_poses(
     transform: LegacyIron3dEulerTransform,
     scale: [f32; 3],
     hierarchy: Option<fparkan_animation::NodePoseBuffer>,
+    mount_pose: Option<Pose>,
+    hide_root_node: bool,
 ) -> Result<VulkanStaticMesh, VulkanAssetMeshError> {
+    if let Some(hierarchy) = hierarchy.as_ref() {
+        if hierarchy.poses.len() != model.node_count {
+            return Err(VulkanAssetMeshError::NodePoseCountMismatch {
+                expected: model.node_count,
+                actual: hierarchy.poses.len(),
+            });
+        }
+    }
     if !transform
         .translation
         .iter()
@@ -391,10 +667,19 @@ fn project_msh_to_static_mesh_in_world_space_with_node_poses(
         return Err(VulkanAssetMeshError::NonFinitePosition);
     }
     if model.node_stride != 38 || model.node_count == 0 || model.animation.is_none() {
-        return project_msh_to_static_mesh_in_world_space_with_transform(model, transform, scale);
+        return project_msh_to_static_mesh_in_world_space_with_transform_and_root_pose(
+            model, transform, scale, mount_pose,
+        );
     }
+    let hierarchy = if mount_pose.is_some() {
+        hierarchy.and_then(strip_node38_root_pose)
+    } else {
+        hierarchy
+    };
     let Some(hierarchy) = hierarchy else {
-        return project_msh_to_static_mesh_in_world_space_with_transform(model, transform, scale);
+        return project_msh_to_static_mesh_in_world_space_with_transform_and_root_pose(
+            model, transform, scale, mount_pose,
+        );
     };
 
     let mut vertices = Vec::new();
@@ -406,7 +691,12 @@ fn project_msh_to_static_mesh_in_world_space_with_node_poses(
         let Some(slot) = selected_slot(model, node, Lod(0), Group(0)) else {
             continue;
         };
-        let pose = hierarchy.poses[node_index];
+        if hide_root_node && node_index == 0 {
+            continue;
+        }
+        let pose = mount_pose.map_or(hierarchy.poses[node_index], |mount| {
+            compose_pose(mount, hierarchy.poses[node_index])
+        });
         if !pose
             .translation
             .iter()
@@ -430,7 +720,16 @@ fn project_msh_to_static_mesh_in_world_space_with_node_poses(
         }
     }
     if indices.is_empty() {
-        return project_msh_to_static_mesh_in_world_space_with_transform(model, transform, scale);
+        // A valid Node38 hierarchy may intentionally select no drawable
+        // batches for this component (for example, a mounted attachment
+        // whose root is hidden at the chosen LOD/group). Preserve that empty
+        // result instead of falling back to every source batch and drawing
+        // geometry that the node selection excluded.
+        return Ok(VulkanStaticMesh {
+            vertices,
+            indices,
+            draw_ranges,
+        });
     }
     Ok(VulkanStaticMesh {
         vertices,
@@ -439,6 +738,48 @@ fn project_msh_to_static_mesh_in_world_space_with_node_poses(
     })
 }
 
+/// Replaces Node38 node zero with the identity pose while retaining every
+/// descendant's pose relative to that root. Mounted components use this
+/// because the native loader substitutes their root with the parent socket.
+fn strip_node38_root_pose(
+    mut hierarchy: fparkan_animation::NodePoseBuffer,
+) -> Option<fparkan_animation::NodePoseBuffer> {
+    let root = *hierarchy.poses.first()?;
+    let inverse_root = inverse_pose(root);
+    hierarchy.poses[0] = Pose::default();
+    for pose in hierarchy.poses.iter_mut().skip(1) {
+        *pose = compose_pose(inverse_root, *pose);
+    }
+    Some(hierarchy)
+}
+
+fn inverse_pose(pose: Pose) -> Pose {
+    let [x, y, z, w] = pose.rotation;
+    let length_squared = x * x + y * y + z * z + w * w;
+    let inverse_rotation = if length_squared.is_finite() && length_squared > f32::EPSILON {
+        [
+            -x / length_squared,
+            -y / length_squared,
+            -z / length_squared,
+            w / length_squared,
+        ]
+    } else {
+        [0.0, 0.0, 0.0, 1.0]
+    };
+    let translation = rotate_by_quaternion(
+        [
+            -pose.translation[0],
+            -pose.translation[1],
+            -pose.translation[2],
+        ],
+        inverse_rotation,
+    );
+    Pose {
+        translation,
+        rotation: inverse_rotation,
+    }
+}
+
 fn append_node_fallback_batch(
     model: &ModelAsset,
     batch: &fparkan_msh::Batch,
@@ -450,6 +791,15 @@ fn append_node_fallback_batch(
     indices: &mut Vec<u32>,
     draw_ranges: &mut Vec<VulkanStaticDrawRange>,
 ) -> Result<(), VulkanAssetMeshError> {
+    // Some authored MSH tables retain empty alternate batches. They do not
+    // describe a drawable range and would violate the renderer's contiguous
+    // non-empty draw-range contract when a full mission root set is loaded.
+    if batch.index_count == 0 {
+        return Ok(());
+    }
+    if !usize::from(batch.index_count).is_multiple_of(3) {
+        return Err(VulkanAssetMeshError::IndexOutOfRange);
+    }
     let first_index =
         u32::try_from(indices.len()).map_err(|_| VulkanAssetMeshError::IndexOutOfRange)?;
     let start =
@@ -488,7 +838,12 @@ fn append_node_fallback_batch(
             u32::try_from(vertices.len()).map_err(|_| VulkanAssetMeshError::IndexOutOfRange)?;
         vertices.push(VulkanStaticVertex {
             position,
-            color: [0.82, 0.72, 0.31],
+            color: [1.0, 1.0, 1.0],
+            normal: {
+                let normal = rotate_by_quaternion(model_normal(model, source_index), rotation);
+                transform_normal(transform, normal, scale)
+                    .ok_or(VulkanAssetMeshError::NonFinitePosition)?
+            },
             uv: model
                 .uv0
                 .as_ref()
@@ -496,19 +851,46 @@ fn append_node_fallback_batch(
                 .map_or([0.0, 0.0], |uv| {
                     [f32::from(uv[0]) / 1024.0, f32::from(uv[1]) / 1024.0]
                 }),
+            detail_uv: model_detail_uv(model, source_index),
+            overlay_alpha: 0.0,
         });
         indices.push(vertex_index);
     }
     draw_ranges.push(VulkanStaticDrawRange {
         first_index,
         index_count: u32::from(batch.index_count),
-        material_index: batch.material_index,
-        pipeline_state: LegacyPipelineState::default(),
+        material_index: u16::from(batch.material_index),
+        lightmap_index: batch.lightmap_index,
+        batch_flags: batch.batch_flags,
+        pipeline_state: world_pipeline_state(),
         alpha_test_reference: 0,
     });
     Ok(())
 }
 
+fn compose_pose(parent: Pose, child: Pose) -> Pose {
+    let translation = rotate_by_quaternion(child.translation, parent.rotation);
+    Pose {
+        translation: [
+            parent.translation[0] + translation[0],
+            parent.translation[1] + translation[1],
+            parent.translation[2] + translation[2],
+        ],
+        rotation: multiply_quaternions(parent.rotation, child.rotation),
+    }
+}
+
+fn multiply_quaternions(left: [f32; 4], right: [f32; 4]) -> [f32; 4] {
+    let [lx, ly, lz, lw] = left;
+    let [rx, ry, rz, rw] = right;
+    [
+        lw * rx + lx * rw + ly * rz - lz * ry,
+        lw * ry - lx * rz + ly * rw + lz * rx,
+        lw * rz + lx * ry - ly * rx + lz * rw,
+        lw * rw - lx * rx - ly * ry - lz * rz,
+    ]
+}
+
 fn rotate_by_quaternion(position: [f32; 3], rotation: [f32; 4]) -> [f32; 3] {
     let [x, y, z, w] = rotation;
     let tx = 2.0 * (y * position[2] - z * position[1]);
@@ -521,6 +903,104 @@ fn rotate_by_quaternion(position: [f32; 3], rotation: [f32; 4]) -> [f32; 3] {
     ]
 }
 
+fn model_normal(model: &ModelAsset, index: usize) -> [f32; 3] {
+    model
+        .normals
+        .as_ref()
+        .and_then(|normals| normals.get(index))
+        .map_or([0.0, 0.0, 1.0], |raw| {
+            // Indexed MSH stores signed bytes.  The native decoder divides
+            // by 127 without clamping or renormalizing, so the packed length
+            // (including -128/127) reaches the shader unchanged.
+            [
+                f32::from(raw[0]) / 127.0,
+                f32::from(raw[1]) / 127.0,
+                f32::from(raw[2]) / 127.0,
+            ]
+        })
+}
+
+/// Decodes the optional MSH type-18 secondary UV stream.  Native model and
+/// terrain samplers use the same unsigned 16-bit fixed-point 1/1024 scale for
+/// both texture stages; an absent stream leaves the neutral detail coordinate.
+fn model_detail_uv(model: &ModelAsset, index: usize) -> [f32; 2] {
+    model
+        .uv1
+        .as_ref()
+        .and_then(|uv1| uv1.get(index))
+        .map_or([0.0, 0.0], |uv| {
+            [f32::from(uv[0]) / 1024.0, f32::from(uv[1]) / 1024.0]
+        })
+}
+
+fn terrain_normal(terrain: &LandMeshDocument, index: usize) -> [f32; 3] {
+    terrain.normals.get(index).map_or([0.0, 0.0, 1.0], |raw| {
+        // Ngi32's normal decoder sign-extends each source byte and multiplies
+        // it by the literal 1/128.  Preserve the packed magnitude here: the
+        // shader consumes the native vector directly, and normalizing it
+        // changes the lighting response for every authored byte.
+        [
+            f32::from(raw[0]) * (1.0 / 128.0),
+            f32::from(raw[1]) * (1.0 / 128.0),
+            f32::from(raw[2]) * (1.0 / 128.0),
+        ]
+    })
+}
+
+fn transform_normal(
+    transform: LegacyIron3dEulerTransform,
+    normal: [f32; 3],
+    scale: [f32; 3],
+) -> Option<[f32; 3]> {
+    if !normal.iter().all(|value| value.is_finite())
+        || !scale
+            .iter()
+            .all(|value| value.is_finite() && value.abs() > f32::EPSILON)
+    {
+        return None;
+    }
+    // Positions use `R * (scale * point)`. Normals therefore use the
+    // inverse-transpose linear transform: inverse scale first, then R.
+    let inverse_scaled = [
+        normal[0] / scale[0],
+        normal[1] / scale[1],
+        normal[2] / scale[2],
+    ];
+    let matrix = transform.try_row_major()?;
+    let transformed = [
+        matrix[0] * inverse_scaled[0]
+            + matrix[1] * inverse_scaled[1]
+            + matrix[2] * inverse_scaled[2],
+        matrix[4] * inverse_scaled[0]
+            + matrix[5] * inverse_scaled[1]
+            + matrix[6] * inverse_scaled[2],
+        matrix[8] * inverse_scaled[0]
+            + matrix[9] * inverse_scaled[1]
+            + matrix[10] * inverse_scaled[2],
+    ];
+    let transformed_length = transformed[0].mul_add(
+        transformed[0],
+        transformed[1].mul_add(transformed[1], transformed[2] * transformed[2]),
+    );
+    if !transformed_length.is_finite() || transformed_length <= f32::EPSILON {
+        return Some([0.0; 3]);
+    }
+    let source_length = normal[0].mul_add(
+        normal[0],
+        normal[1].mul_add(normal[1], normal[2] * normal[2]),
+    );
+    if !source_length.is_finite() || source_length <= f32::EPSILON {
+        return Some([0.0; 3]);
+    }
+    let magnitude = source_length.sqrt();
+    let inverse_transformed_length = transformed_length.sqrt().recip();
+    Some([
+        transformed[0] * inverse_transformed_length * magnitude,
+        transformed[1] * inverse_transformed_length * magnitude,
+        transformed[2] * inverse_transformed_length * magnitude,
+    ])
+}
+
 /// Projects validated `Land.msh` terrain geometry into the static Vulkan path.
 ///
 /// This bridge preserves the source triangle order from `TerrainFace28` and
@@ -595,13 +1075,16 @@ pub fn project_land_msh_to_static_mesh_in_xy_frame(
                     frame.project(*position)[1],
                     0.0,
                 ],
-                color: [0.31, 0.58, 0.27],
+                color: [1.0, 1.0, 1.0],
+                normal: terrain_normal(terrain, index),
                 uv: terrain
                     .uv0
                     .get(index)
                     .map_or(frame.planar_uv(*position), |uv| {
                         [f32::from(uv[0]) / 1024.0, f32::from(uv[1]) / 1024.0]
                     }),
+                detail_uv: terrain_detail_uv(terrain, index),
+                overlay_alpha: terrain_overlay_alpha(terrain, index),
             })
         })
         .collect::<Result<Vec<_>, _>>()?;
@@ -638,10 +1121,13 @@ pub fn project_land_msh_to_static_mesh_in_world_space(
             }
             Ok(VulkanStaticVertex {
                 position: *position,
-                color: [0.31, 0.58, 0.27],
+                color: [1.0, 1.0, 1.0],
+                normal: terrain_normal(terrain, index),
                 uv: terrain.uv0.get(index).map_or([0.0, 0.0], |uv| {
                     [f32::from(uv[0]) / 1024.0, f32::from(uv[1]) / 1024.0]
                 }),
+                detail_uv: terrain_detail_uv(terrain, index),
+                overlay_alpha: terrain_overlay_alpha(terrain, index),
             })
         })
         .collect::<Result<Vec<_>, _>>()?;
@@ -695,6 +1181,38 @@ fn static_terrain_indices(terrain: &LandMeshDocument) -> Result<Vec<u32>, Vulkan
     Ok(indices)
 }
 
+/// Decodes the terrain type-18 repeating detail coordinate. The original
+/// stream stores two unsigned 16-bit fixed-point coordinates with the same
+/// 1/1024 texture scale used by the texture sampler.
+fn terrain_detail_uv(terrain: &LandMeshDocument, index: usize) -> [f32; 2] {
+    terrain.aux18.get(index).map_or([0.0, 0.0], |raw| {
+        [
+            f32::from(u16::from_le_bytes([raw[0], raw[1]])) / 1024.0,
+            f32::from(u16::from_le_bytes([raw[2], raw[3]])) / 1024.0,
+        ]
+    })
+}
+
+/// Decodes the terrain type-14 overlay mask as the source float alpha.
+/// Invalid or out-of-range values are disabled at the static bridge boundary;
+/// valid map data is the continuous 0..1 mask consumed by the original shade
+/// path.
+fn terrain_overlay_alpha(terrain: &LandMeshDocument, index: usize) -> f32 {
+    terrain
+        .aux14
+        .get(index)
+        .map_or(0.0, |raw| f32::from_le_bytes(*raw))
+        .is_finite()
+        .then_some(
+            terrain
+                .aux14
+                .get(index)
+                .map_or(0.0, |raw| f32::from_le_bytes(*raw))
+                .clamp(0.0, 1.0),
+        )
+        .unwrap_or(0.0)
+}
+
 fn static_terrain_draw_ranges(
     terrain: &LandMeshDocument,
 ) -> Result<Vec<VulkanStaticDrawRange>, VulkanAssetMeshError> {
@@ -718,7 +1236,9 @@ fn static_terrain_draw_ranges(
                 .checked_mul(3)
                 .ok_or(VulkanAssetMeshError::IndexOutOfRange)?,
             material_index,
-            pipeline_state: LegacyPipelineState::default(),
+            lightmap_index: u8::MAX,
+            batch_flags: 0,
+            pipeline_state: world_pipeline_state(),
             alpha_test_reference: 0,
         });
         start_face = end_face;
@@ -733,6 +1253,12 @@ fn static_model_indices_and_ranges(
     let batches = static_model_preview_batches(model)?;
     let mut draw_ranges = Vec::with_capacity(batches.len());
     for batch in batches {
+        if batch.index_count == 0 {
+            continue;
+        }
+        if !usize::from(batch.index_count).is_multiple_of(3) {
+            return Err(VulkanAssetMeshError::IndexOutOfRange);
+        }
         let first_index =
             u32::try_from(indices.len()).map_err(|_| VulkanAssetMeshError::IndexOutOfRange)?;
         let start = usize::try_from(batch.index_start)
@@ -754,8 +1280,10 @@ fn static_model_indices_and_ranges(
         draw_ranges.push(VulkanStaticDrawRange {
             first_index,
             index_count: u32::from(batch.index_count),
-            material_index: batch.material_index,
-            pipeline_state: LegacyPipelineState::default(),
+            material_index: u16::from(batch.material_index),
+            lightmap_index: batch.lightmap_index,
+            batch_flags: batch.batch_flags,
+            pipeline_state: world_pipeline_state(),
             alpha_test_reference: 0,
         });
     }
@@ -843,10 +1371,13 @@ mod tests {
             node_stride: 0,
             node_count: 0,
             nodes_raw: Vec::new(),
+            bounding_sphere_center: [0.0; 3],
+            bounding_sphere_radius: 0.0,
             slots: Vec::new(),
             positions,
             normals: None,
             uv0: None,
+            uv1: None,
             indices,
             batches,
             node_names: None,
@@ -857,12 +1388,13 @@ mod tests {
     fn batch(index_start: u32, index_count: u16, base_vertex: u32) -> Batch {
         Batch {
             batch_flags: 0,
+            material_index_hi: 0,
             material_index: 0,
-            opaque4: 0,
-            opaque6: 0,
+            lightmap_index: 0,
+            local_batch_index: 0,
             index_count,
             index_start,
-            opaque14: 0,
+            vertex_count: 0,
             base_vertex,
         }
     }
@@ -875,6 +1407,8 @@ mod tests {
             node_stride: 38,
             node_count: 1,
             nodes_raw: node,
+            bounding_sphere_center: [0.0; 3],
+            bounding_sphere_radius: 0.0,
             slots: vec![
                 Slot {
                     tri_start: 0,
@@ -902,6 +1436,7 @@ mod tests {
             positions: Vec::new(),
             normals: None,
             uv0: None,
+            uv1: None,
             indices: Vec::new(),
             batches: vec![
                 batch(0, 0, 0),
@@ -940,7 +1475,9 @@ mod tests {
                 first_index: 0,
                 index_count: 3,
                 material_index: 0,
-                pipeline_state: LegacyPipelineState::default(),
+                lightmap_index: 0,
+                batch_flags: 0,
+                pipeline_state: world_pipeline_state(),
                 alpha_test_reference: 0,
             }]
         );
@@ -956,13 +1493,13 @@ mod tests {
             vec![0, 1, 2],
             vec![batch(0, 3, 0)],
         );
-        source.uv0 = Some(vec![[1024, -512], [0, 2048], [-1024, 512]]);
+        source.uv0 = Some(vec![[1024, 65024], [0, 2048], [64512, 512]]);
 
         let mesh = project_msh_to_static_mesh(&source).expect("representable MSH");
 
-        assert_eq!(mesh.vertices[0].uv, [1.0, -0.5]);
+        assert_eq!(mesh.vertices[0].uv, [1.0, 63.5]);
         assert_eq!(mesh.vertices[1].uv, [0.0, 2.0]);
-        assert_eq!(mesh.vertices[2].uv, [-1.0, 0.5]);
+        assert_eq!(mesh.vertices[2].uv, [63.0, 0.5]);
     }
 
     #[test]
@@ -972,7 +1509,7 @@ mod tests {
             vec![0, 1, 2],
             vec![batch(0, 3, 0)],
         );
-        source.uv0 = Some(vec![[1024, -512], [0, 2048], [-1024, 512]]);
+        source.uv0 = Some(vec![[1024, 65024], [0, 2048], [64512, 512]]);
 
         let mesh = project_msh_to_static_mesh_in_world_space(
             &source,
@@ -984,7 +1521,7 @@ mod tests {
         assert_eq!(mesh.indices, vec![0, 1, 2]);
         assert_eq!(mesh.vertices[0].position, [104.0, 203.0, 302.0]);
         assert_eq!(mesh.vertices[1].position, [100.0, 199.0, 301.0]);
-        assert_eq!(mesh.vertices[0].uv, [1.0, -0.5]);
+        assert_eq!(mesh.vertices[0].uv, [1.0, 63.5]);
     }
 
     #[test]
@@ -1011,6 +1548,65 @@ mod tests {
     }
 
     #[test]
+    fn world_space_msh_transforms_normals_with_inverse_scale() {
+        let mut source = model(
+            vec![[0.0, 0.0, 0.0], [1.0, 0.0, 0.0], [0.0, 1.0, 0.0]],
+            vec![0, 1, 2],
+            vec![batch(0, 3, 0)],
+        );
+        source.normals = Some(vec![[127, 127, 0, 0]; 3]);
+
+        let mesh = project_msh_to_static_mesh_in_world_space_with_transform(
+            &source,
+            LegacyIron3dEulerTransform {
+                translation: [0.0; 3],
+                orientation_radians: [0.0; 3],
+            },
+            [2.0, 3.0, 1.0],
+        )
+        .expect("finite transformed normals");
+
+        let expected_magnitude = 2.0_f32.sqrt() * (127.0 / 127.0);
+        assert!((mesh.vertices[0].normal[0] - 0.83205 * expected_magnitude).abs() < 0.0001);
+        assert!((mesh.vertices[0].normal[1] - 0.55470 * expected_magnitude).abs() < 0.0001);
+        assert_eq!(mesh.vertices[0].normal[2], 0.0);
+    }
+
+    #[test]
+    fn indexed_msh_normal_bytes_keep_packed_magnitude_through_uniform_scale() {
+        let mut source = model(
+            vec![[0.0, 0.0, 0.0], [1.0, 0.0, 0.0], [0.0, 1.0, 0.0]],
+            vec![0, 1, 2],
+            vec![batch(0, 3, 0)],
+        );
+        source.normals = Some(vec![[-128, 0, 0, 0], [64, 0, 0, 0], [0, 0, 127, 0]]);
+        let mesh = project_msh_to_static_mesh_in_world_space_with_transform(
+            &source,
+            LegacyIron3dEulerTransform {
+                translation: [0.0; 3],
+                orientation_radians: [0.0, 0.0, std::f32::consts::FRAC_PI_2],
+            },
+            [2.0; 3],
+        )
+        .expect("finite packed normals");
+        let lengths = mesh
+            .vertices
+            .iter()
+            .map(|vertex| {
+                vertex.normal[0]
+                    .mul_add(
+                        vertex.normal[0],
+                        vertex.normal[1]
+                            .mul_add(vertex.normal[1], vertex.normal[2] * vertex.normal[2]),
+                    )
+                    .sqrt()
+            })
+            .collect::<Vec<_>>();
+        assert!((lengths[0] - 128.0 / 127.0).abs() < 0.0001);
+        assert!((lengths[1] - 64.0 / 127.0).abs() < 0.0001);
+    }
+
+    #[test]
     fn xy_preview_applies_recovered_iron3d_orientation_before_framing() {
         let source = model(
             vec![[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 0.0]],
@@ -1048,6 +1644,8 @@ mod tests {
             node_stride: 38,
             node_count: 2,
             nodes_raw: nodes,
+            bounding_sphere_center: [0.0; 3],
+            bounding_sphere_radius: 0.0,
             slots: vec![
                 Slot {
                     tri_start: 0,
@@ -1075,6 +1673,7 @@ mod tests {
             positions: vec![[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
             normals: None,
             uv0: None,
+            uv1: None,
             indices: vec![0, 1, 2, 0, 1, 2],
             batches: vec![batch(0, 3, 0), batch(3, 3, 0)],
             node_names: None,
@@ -1113,6 +1712,248 @@ mod tests {
     }
 
     #[test]
+    fn mounted_socket_pose_strips_only_a_replaced_parent_root() {
+        let mut nodes = vec![0_u8; 76];
+        nodes[2..4].copy_from_slice(&u16::MAX.to_le_bytes());
+        nodes[6..8].copy_from_slice(&0_u16.to_le_bytes());
+        nodes[38 + 2..38 + 4].copy_from_slice(&0_u16.to_le_bytes());
+        nodes[38 + 6..38 + 8].copy_from_slice(&1_u16.to_le_bytes());
+        let source = ModelAsset {
+            node_stride: 38,
+            node_count: 2,
+            nodes_raw: nodes,
+            bounding_sphere_center: [0.0; 3],
+            bounding_sphere_radius: 0.0,
+            slots: Vec::new(),
+            positions: Vec::new(),
+            normals: None,
+            uv0: None,
+            uv1: None,
+            indices: Vec::new(),
+            batches: Vec::new(),
+            node_names: None,
+            animation: Some(ModelAnimation {
+                keys: vec![
+                    AnimKey24 {
+                        time: AnimationTime(0.0),
+                        pose: Pose {
+                            translation: [5.0, 0.0, 0.0],
+                            rotation: [0.0, 0.0, 0.0, 1.0],
+                        },
+                    },
+                    AnimKey24 {
+                        time: AnimationTime(0.0),
+                        pose: Pose {
+                            translation: [2.0, 0.0, 0.0],
+                            rotation: [0.0, 0.0, 0.0, 1.0],
+                        },
+                    },
+                ],
+                frame_map: Vec::new(),
+                frame_count: 0,
+            }),
+        };
+
+        assert_eq!(
+            node38_pose(&source, None, 1)
+                .expect("full socket")
+                .translation,
+            [7.0, 0.0, 0.0]
+        );
+        assert_eq!(
+            node38_pose_relative_to_root(&source, None, 1)
+                .expect("relative socket")
+                .translation,
+            [2.0, 0.0, 0.0]
+        );
+    }
+
+    #[test]
+    fn mounted_child_uses_precomputed_hierarchies_for_socket_and_geometry() {
+        let parent_hierarchy = NodePoseBuffer {
+            poses: vec![
+                Pose {
+                    translation: [20.0, 0.0, 0.0],
+                    rotation: [0.0, 0.0, 0.0, 1.0],
+                },
+                Pose {
+                    translation: [25.0, 0.0, 0.0],
+                    rotation: [0.0, 0.0, 0.0, 1.0],
+                },
+            ],
+        };
+        let parent_socket = node38_pose_relative_to_root_from_hierarchy(&parent_hierarchy, 1)
+            .expect("sampled parent socket relative to its mounted root");
+        assert_eq!(parent_socket.translation, [5.0, 0.0, 0.0]);
+        assert_eq!(
+            node38_pose_from_hierarchy(&parent_hierarchy, 1)
+                .expect("sampled parent socket")
+                .translation,
+            [25.0, 0.0, 0.0]
+        );
+
+        let mut child_root = vec![0_u8; 38];
+        child_root[2..4].copy_from_slice(&u16::MAX.to_le_bytes());
+        child_root[6..8].copy_from_slice(&0_u16.to_le_bytes());
+        let mut child_node = vec![0_u8; 38];
+        child_node[2..4].copy_from_slice(&0_u16.to_le_bytes());
+        child_node[6..8].copy_from_slice(&1_u16.to_le_bytes());
+        child_node[8..10].copy_from_slice(&1_u16.to_le_bytes());
+        let mut nodes = child_root;
+        nodes.extend(child_node);
+        let child = ModelAsset {
+            node_stride: 38,
+            node_count: 2,
+            nodes_raw: nodes,
+            bounding_sphere_center: [0.0; 3],
+            bounding_sphere_radius: 0.0,
+            slots: vec![
+                Slot {
+                    tri_start: 0,
+                    tri_count: 0,
+                    batch_start: 0,
+                    batch_count: 1,
+                    aabb_min: [0.0; 3],
+                    aabb_max: [1.0; 3],
+                    sphere_center: [0.0; 3],
+                    sphere_radius: 1.0,
+                    opaque: [0; 5],
+                },
+                Slot {
+                    tri_start: 0,
+                    tri_count: 0,
+                    batch_start: 1,
+                    batch_count: 1,
+                    aabb_min: [0.0; 3],
+                    aabb_max: [1.0; 3],
+                    sphere_center: [0.0; 3],
+                    sphere_radius: 1.0,
+                    opaque: [0; 5],
+                },
+            ],
+            positions: vec![[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
+            normals: None,
+            uv0: None,
+            uv1: None,
+            indices: vec![0, 1, 2, 0, 1, 2],
+            batches: vec![batch(0, 3, 0), batch(3, 3, 0)],
+            node_names: None,
+            animation: Some(ModelAnimation {
+                keys: vec![AnimKey24 {
+                    time: AnimationTime(0.0),
+                    pose: Pose::default(),
+                }],
+                frame_map: Vec::new(),
+                frame_count: 0,
+            }),
+        };
+        let child_hierarchy = NodePoseBuffer {
+            poses: vec![
+                Pose {
+                    translation: [10.0, 0.0, 0.0],
+                    rotation: [0.0, 0.0, 0.0, 1.0],
+                },
+                Pose {
+                    translation: [14.0, 0.0, 0.0],
+                    rotation: [0.0, 0.0, 0.0, 1.0],
+                },
+            ],
+        };
+        let child_socket = node38_pose_relative_to_root_from_hierarchy(&child_hierarchy, 1)
+            .expect("child node relative to its mounted root");
+        assert_eq!(child_socket.translation, [4.0, 0.0, 0.0]);
+
+        // The parent component's world root is at x=100, so its sampled socket
+        // at x=5 places the child root at x=105. The child geometry uses the
+        // same child hierarchy as the socket path: root x=10 is stripped and
+        // node 1 contributes x=4 before the source vertex at x=1.
+        let mesh = project_msh_to_static_mesh_in_world_space_with_node_pose_buffer_and_mount(
+            &child,
+            LegacyIron3dEulerTransform {
+                translation: [0.0; 3],
+                orientation_radians: [0.0; 3],
+            },
+            [1.0; 3],
+            &child_hierarchy,
+            VulkanNodePose {
+                translation: [105.0, 0.0, 0.0],
+                rotation: [0.0, 0.0, 0.0, 1.0],
+            },
+        )
+        .expect("mounted child geometry from sampled pose buffer");
+        assert_eq!(mesh.vertices[0].position, [110.0, 0.0, 0.0]);
+        assert_eq!(mesh.indices, vec![0, 1, 2]);
+    }
+
+    #[test]
+    fn supplied_node_pose_buffer_must_match_model_node_count() {
+        let source = model(Vec::new(), Vec::new(), Vec::new());
+        let error = project_msh_to_static_mesh_in_world_space_with_node_pose_buffer(
+            &source,
+            LegacyIron3dEulerTransform {
+                translation: [0.0; 3],
+                orientation_radians: [0.0; 3],
+            },
+            [1.0; 3],
+            &NodePoseBuffer {
+                poses: vec![Pose::default()],
+            },
+        )
+        .expect_err("mismatched node pose count");
+        assert_eq!(
+            error,
+            VulkanAssetMeshError::NodePoseCountMismatch {
+                expected: 0,
+                actual: 1,
+            }
+        );
+    }
+
+    #[test]
+    fn node_pose_projection_preserves_an_intentionally_empty_component() {
+        let mut node = vec![0_u8; 38];
+        node[2..4].copy_from_slice(&u16::MAX.to_le_bytes());
+        node[6..8].copy_from_slice(&0_u16.to_le_bytes());
+        node[8..10].copy_from_slice(&u16::MAX.to_le_bytes());
+        let source = ModelAsset {
+            node_stride: 38,
+            node_count: 1,
+            nodes_raw: node,
+            bounding_sphere_center: [0.0; 3],
+            bounding_sphere_radius: 0.0,
+            slots: Vec::new(),
+            positions: vec![[0.0, 0.0, 0.0], [1.0, 0.0, 0.0], [0.0, 1.0, 0.0]],
+            normals: None,
+            uv0: None,
+            uv1: None,
+            indices: vec![0, 1, 2],
+            batches: vec![batch(0, 3, 0)],
+            node_names: None,
+            animation: Some(ModelAnimation {
+                keys: vec![AnimKey24 {
+                    time: AnimationTime(0.0),
+                    pose: Pose::default(),
+                }],
+                frame_map: Vec::new(),
+                frame_count: 0,
+            }),
+        };
+
+        let mesh = project_msh_to_static_mesh_in_world_space_with_node_fallback_poses(
+            &source,
+            LegacyIron3dEulerTransform {
+                translation: [10.0, 20.0, 30.0],
+                orientation_radians: [0.0; 3],
+            },
+            [1.0; 3],
+        )
+        .expect("empty node component remains representable");
+        assert!(mesh.vertices.is_empty());
+        assert!(mesh.indices.is_empty());
+        assert!(mesh.draw_ranges.is_empty());
+    }
+
+    #[test]
     fn rotates_point_by_unit_quaternion() {
         let rotated = rotate_by_quaternion(
             [1.0, 0.0, 0.0],
@@ -1151,14 +1992,18 @@ mod tests {
                     first_index: 0,
                     index_count: 3,
                     material_index: 0,
-                    pipeline_state: LegacyPipelineState::default(),
+                    lightmap_index: 0,
+                    batch_flags: 0,
+                    pipeline_state: world_pipeline_state(),
                     alpha_test_reference: 0,
                 },
                 VulkanStaticDrawRange {
                     first_index: 3,
                     index_count: 3,
                     material_index: 7,
-                    pipeline_state: LegacyPipelineState::default(),
+                    lightmap_index: 0,
+                    batch_flags: 0,
+                    pipeline_state: world_pipeline_state(),
                     alpha_test_reference: 0,
                 },
             ]
@@ -1181,7 +2026,7 @@ mod tests {
                 [2.0, 3.0, 1.0],
             ],
             normals: Vec::new(),
-            uv0: vec![[1024, -512], [0, 2048], [-1024, 512], [512, 0]],
+            uv0: vec![[1024, 65024], [0, 2048], [64512, 512], [512, 0]],
             accelerator: Vec::new(),
             aux14: Vec::new(),
             aux18: Vec::new(),
@@ -1195,8 +2040,31 @@ mod tests {
         assert_eq!(mesh.draw_ranges[0].index_count, 6);
         assert_eq!(mesh.vertices[0].position, [-0.8, -0.8, 0.0]);
         assert_eq!(mesh.vertices[3].position, [0.8, 0.8, 0.0]);
-        assert_eq!(mesh.vertices[0].uv, [1.0, -0.5]);
-        assert_eq!(mesh.vertices[2].uv, [-1.0, 0.5]);
+        assert_eq!(mesh.vertices[0].uv, [1.0, 63.5]);
+        assert_eq!(mesh.vertices[2].uv, [63.0, 0.5]);
+    }
+
+    #[test]
+    fn terrain_normals_keep_native_one_over_128_scale() {
+        let terrain = LandMeshDocument {
+            streams: Vec::new(),
+            nodes_raw: Vec::new(),
+            slots: TerrainSlotTable {
+                header_raw: Vec::new(),
+                slots_raw: Vec::new(),
+            },
+            positions: vec![[0.0, 0.0, 0.0], [1.0, 0.0, 0.0], [0.0, 1.0, 0.0]],
+            normals: vec![[127, -128, 64, 0]; 3],
+            uv0: vec![[0, 0]; 3],
+            accelerator: Vec::new(),
+            aux14: Vec::new(),
+            aux18: Vec::new(),
+            faces: vec![terrain_face([0, 1, 2])],
+        };
+
+        let mesh = project_land_msh_to_static_mesh_in_world_space(&terrain)
+            .expect("representable terrain normals");
+        assert_eq!(mesh.vertices[0].normal, [127.0 / 128.0, -1.0, 0.5]);
     }
 
     #[test]
@@ -1210,7 +2078,7 @@ mod tests {
             },
             positions: vec![[10.0, 20.0, 30.0], [40.0, 50.0, 60.0], [70.0, 80.0, 90.0]],
             normals: Vec::new(),
-            uv0: vec![[1024, -512], [0, 2048], [-1024, 512]],
+            uv0: vec![[1024, 65024], [0, 2048], [64512, 512]],
             accelerator: Vec::new(),
             aux14: Vec::new(),
             aux18: Vec::new(),
@@ -1223,7 +2091,7 @@ mod tests {
         assert_eq!(mesh.indices, vec![2, 0, 1]);
         assert_eq!(mesh.vertices[0].position, [10.0, 20.0, 30.0]);
         assert_eq!(mesh.vertices[2].position, [70.0, 80.0, 90.0]);
-        assert_eq!(mesh.vertices[0].uv, [1.0, -0.5]);
+        assert_eq!(mesh.vertices[0].uv, [1.0, 63.5]);
     }
 
     #[test]
diff --git a/adapters/fparkan-render-vulkan/src/ffi.rs b/adapters/fparkan-render-vulkan/src/ffi.rs
index 640551a..83fdbbf 100644
--- a/adapters/fparkan-render-vulkan/src/ffi.rs
+++ b/adapters/fparkan-render-vulkan/src/ffi.rs
@@ -21,16 +21,22 @@ mod swapchain_resources;
 mod validation;
 
 pub use self::asset_mesh::{
-    project_land_msh_to_static_mesh, project_land_msh_to_static_mesh_in_legacy_world_space,
+    node38_pose, node38_pose_from_hierarchy, node38_pose_relative_to_root,
+    node38_pose_relative_to_root_from_hierarchy, project_land_msh_to_static_mesh,
+    project_land_msh_to_static_mesh_in_legacy_world_space,
     project_land_msh_to_static_mesh_in_world_space, project_land_msh_to_static_mesh_in_xy_frame,
     project_msh_to_static_mesh, project_msh_to_static_mesh_in_world_space,
     project_msh_to_static_mesh_in_world_space_with_node_fallback_poses,
+    project_msh_to_static_mesh_in_world_space_with_node_fallback_poses_and_mount,
+    project_msh_to_static_mesh_in_world_space_with_node_pose_buffer,
+    project_msh_to_static_mesh_in_world_space_with_node_pose_buffer_and_mount,
     project_msh_to_static_mesh_in_world_space_with_node_sampled_poses,
+    project_msh_to_static_mesh_in_world_space_with_node_sampled_poses_and_mount,
     project_msh_to_static_mesh_in_world_space_with_transform,
     project_msh_to_static_mesh_in_xy_frame,
     project_msh_to_static_mesh_in_xy_frame_with_node_fallback_poses,
     project_msh_to_static_mesh_in_xy_frame_with_node_sampled_poses, VulkanAssetMeshError,
-    VulkanStaticXyFrame,
+    VulkanNodePose, VulkanStaticXyFrame,
 };
 pub use self::capabilities::{
     probe_vulkan_runtime_capabilities, probe_vulkan_runtime_capabilities_for_request,
@@ -45,21 +51,27 @@ pub use self::instance::{
 use self::instance::{cstring_vec, ensure_instance_extensions_available};
 use self::resources::{
     color_subresource_range, create_command_pool, create_depth_attachment, create_frame_sync,
+    create_frame_uniform_buffer, create_index_buffer, create_material_specular_buffer,
     create_readback_buffer, create_static_mesh_index_buffer, create_static_mesh_vertex_buffer,
-    create_static_texture_image, destroy_allocated_buffer, destroy_allocated_image,
-    destroy_depth_attachment, readback_buffer_bytes, VulkanAllocatedBuffer, VulkanAllocatedImage,
-    VulkanDepthAttachment, VulkanFrameSync,
+    create_static_texture_image, create_vertex_buffer, destroy_allocated_buffer,
+    destroy_allocated_image, destroy_depth_attachment, readback_buffer_bytes,
+    update_static_texture_image, write_frame_uniform, write_material_specular_buffer,
+    write_static_mesh_index_buffer, write_static_mesh_vertex_buffer, VulkanAllocatedBuffer,
+    VulkanAllocatedImage, VulkanDepthAttachment, VulkanFrameSync,
 };
 pub use self::runtime::{
     create_vulkan_logical_device_probe, create_vulkan_logical_device_probe_for_request,
     VulkanLogicalDeviceError, VulkanLogicalDeviceProbe, VulkanLogicalDeviceReport,
 };
 pub use self::smoke_types::{
+    VulkanDirectionalLight, VulkanDynamicDrawRange, VulkanFrameUniforms, VulkanPointLight,
     VulkanReadbackArtifact, VulkanSmokeBootstrapProgress, VulkanSmokeBootstrapSnapshot,
     VulkanSmokeFrameOutcome, VulkanSmokeRenderer, VulkanSmokeRendererCreateInfo,
     VulkanSmokeRendererError, VulkanSmokeRendererReport, VulkanSmokeShutdownReport,
     VulkanStaticCamera, VulkanStaticDrawRange, VulkanStaticMaterial, VulkanStaticMesh,
-    VulkanStaticTexture, VulkanStaticVertex, VulkanValidationReport,
+    VulkanStaticTexture, VulkanStaticTextureMip, VulkanStaticVertex, VulkanValidationReport,
+    VULKAN_DIRECTIONAL_LIGHT_COUNT, VULKAN_FRAME_UNIFORM_BYTES,
+    VULKAN_MATERIAL_SPECULAR_RECORD_BYTES,
 };
 #[cfg(test)]
 use self::surface::extension_name;
@@ -72,7 +84,8 @@ pub use self::swapchain::{
     VulkanSwapchainProbeError, VulkanSwapchainReport,
 };
 use self::swapchain_resources::{
-    create_swapchain_resources, destroy_swapchain_resources, VulkanSwapchainResources,
+    create_swapchain_resources, destroy_swapchain_resources, update_material_texture_descriptor,
+    VulkanSwapchainResources,
 };
 use self::validation::{create_validation_messenger, VulkanValidationMessenger};
 use ash::vk;
@@ -469,6 +482,8 @@ const LEGACY_TRIANGLE_FRAGMENT_SHADER_WORDS: &[u32] = &[
 ];
 
 const fn spirv_words<const WORD_COUNT: usize>(bytes: &[u8]) -> [u32; WORD_COUNT] {
+    assert!(bytes.len() % 4 == 0);
+    assert!(bytes.len() == WORD_COUNT * 4);
     let mut words = [0_u32; WORD_COUNT];
     let mut index = 0;
     while index < WORD_COUNT {
@@ -484,10 +499,12 @@ const fn spirv_words<const WORD_COUNT: usize>(bytes: &[u8]) -> [u32; WORD_COUNT]
     words
 }
 
-static TRIANGLE_VERTEX_SHADER_DATA: [u32; 358] =
-    spirv_words(include_bytes!("../shaders/triangle.vert.spv"));
-static TRIANGLE_FRAGMENT_SHADER_DATA: [u32; 296] =
-    spirv_words(include_bytes!("../shaders/triangle.frag.spv"));
+const TRIANGLE_VERTEX_SHADER_BYTES: &[u8] = include_bytes!("../shaders/triangle.vert.spv");
+const TRIANGLE_FRAGMENT_SHADER_BYTES: &[u8] = include_bytes!("../shaders/triangle.frag.spv");
+static TRIANGLE_VERTEX_SHADER_DATA: [u32; TRIANGLE_VERTEX_SHADER_BYTES.len() / 4] =
+    spirv_words(TRIANGLE_VERTEX_SHADER_BYTES);
+static TRIANGLE_FRAGMENT_SHADER_DATA: [u32; TRIANGLE_FRAGMENT_SHADER_BYTES.len() / 4] =
+    spirv_words(TRIANGLE_FRAGMENT_SHADER_BYTES);
 pub(crate) const TRIANGLE_VERTEX_SHADER_WORDS: &[u32] = &TRIANGLE_VERTEX_SHADER_DATA;
 pub(crate) const TRIANGLE_FRAGMENT_SHADER_WORDS: &[u32] = &TRIANGLE_FRAGMENT_SHADER_DATA;
 
diff --git a/adapters/fparkan-render-vulkan/src/ffi/resources.rs b/adapters/fparkan-render-vulkan/src/ffi/resources.rs
index f1fd579..b841588 100644
--- a/adapters/fparkan-render-vulkan/src/ffi/resources.rs
+++ b/adapters/fparkan-render-vulkan/src/ffi/resources.rs
@@ -18,6 +18,9 @@ pub(super) struct VulkanAllocatedImage {
     pub(super) image: vk::Image,
     pub(super) memory: vk::DeviceMemory,
     pub(super) view: vk::ImageView,
+    pub(super) width: u32,
+    pub(super) height: u32,
+    pub(super) mip_levels: u32,
 }
 
 /// Depth/stencil image and the exact format selected for its render pass.
@@ -134,6 +137,9 @@ pub(super) fn create_depth_attachment(
             image,
             memory,
             view,
+            width: extent.0,
+            height: extent.1,
+            mip_levels: 1,
         },
         format,
     })
@@ -186,7 +192,6 @@ fn depth_aspect(format: vk::Format) -> vk::ImageAspectFlags {
 
 pub(super) struct VulkanFrameSync {
     pub(super) image_available: vk::Semaphore,
-    pub(super) render_finished: vk::Semaphore,
     pub(super) fence: vk::Fence,
 }
 
@@ -210,24 +215,112 @@ pub(super) fn create_static_mesh_vertex_buffer(
     device: &VulkanLogicalDeviceProbe,
     mesh: &VulkanStaticMesh,
 ) -> Result<VulkanAllocatedBuffer, VulkanSmokeRendererError> {
-    let mut bytes = Vec::with_capacity(mesh.vertices.len() * 8 * std::mem::size_of::<f32>());
-    for vertex in &mesh.vertices {
+    let bytes = encode_static_vertices(&mesh.vertices)?;
+    create_host_visible_buffer(
+        instance,
+        device,
+        &bytes,
+        vk::BufferUsageFlags::VERTEX_BUFFER,
+        "static mesh vertex buffer",
+    )
+}
+
+/// Allocates a vertex buffer for a frame's retained mesh capacity.
+pub(super) fn create_vertex_buffer(
+    instance: &VulkanInstanceProbe,
+    device: &VulkanLogicalDeviceProbe,
+    vertices: &[super::VulkanStaticVertex],
+) -> Result<VulkanAllocatedBuffer, VulkanSmokeRendererError> {
+    let bytes = encode_static_vertices(vertices)?;
+    create_host_visible_buffer(
+        instance,
+        device,
+        &bytes,
+        vk::BufferUsageFlags::VERTEX_BUFFER,
+        "dynamic mesh vertex buffer",
+    )
+}
+
+/// Replaces the bytes of a host-visible static vertex allocation.
+///
+/// The live renderer waits for the device before calling this helper, so a
+/// single shared allocation can safely carry camera-relative sky and weather
+/// geometry between frames.
+pub(super) fn write_static_mesh_vertex_buffer(
+    device: &VulkanLogicalDeviceProbe,
+    buffer: &VulkanAllocatedBuffer,
+    vertices: &[super::VulkanStaticVertex],
+) -> Result<(), VulkanSmokeRendererError> {
+    let bytes = encode_static_vertices(vertices)?;
+    write_mapped_buffer(
+        device,
+        buffer,
+        &bytes,
+        "vkMapMemory(static mesh vertex update)",
+    )
+}
+
+fn encode_static_vertices(
+    vertices: &[super::VulkanStaticVertex],
+) -> Result<Vec<u8>, VulkanSmokeRendererError> {
+    let byte_len = vertices
+        .len()
+        .checked_mul(14)
+        .and_then(|count| count.checked_mul(std::mem::size_of::<f32>()))
+        .ok_or(VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "static mesh vertex data size overflows address space",
+        })?;
+    let mut bytes = Vec::new();
+    bytes
+        .try_reserve_exact(byte_len)
+        .map_err(|_| VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "static mesh vertex data exceeds addressable memory",
+        })?;
+    for vertex in vertices {
         for value in vertex
             .position
             .into_iter()
             .chain(vertex.color)
+            .chain(vertex.normal)
             .chain(vertex.uv)
+            .chain(vertex.detail_uv)
+            .chain([vertex.overlay_alpha])
         {
             bytes.extend_from_slice(&value.to_ne_bytes());
         }
     }
-    create_host_visible_buffer(
-        instance,
-        device,
-        &bytes,
-        vk::BufferUsageFlags::VERTEX_BUFFER,
-        "static mesh vertex buffer",
-    )
+    Ok(bytes)
+}
+
+fn write_mapped_buffer(
+    device: &VulkanLogicalDeviceProbe,
+    buffer: &VulkanAllocatedBuffer,
+    bytes: &[u8],
+    context: &'static str,
+) -> Result<(), VulkanSmokeRendererError> {
+    let byte_len =
+        u64::try_from(bytes.len()).map_err(|_| VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "static mesh upload exceeds address space",
+        })?;
+    if byte_len == 0 {
+        return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "static mesh upload cannot be empty",
+        });
+    }
+    // SAFETY: The caller validates that the allocation is large enough and
+    // waits for all queue work that could read it before this write.
+    let mapped = unsafe {
+        device
+            .device()
+            .map_memory(buffer.memory, 0, byte_len, vk::MemoryMapFlags::empty())
+    }
+    .map_err(|result| VulkanSmokeRendererError::VulkanOperation { context, result })?;
+    // SAFETY: `mapped` covers exactly the byte slice copied below.
+    unsafe {
+        std::ptr::copy_nonoverlapping(bytes.as_ptr(), mapped.cast::<u8>(), bytes.len());
+        device.device().unmap_memory(buffer.memory);
+    }
+    Ok(())
 }
 
 pub(super) fn create_static_mesh_index_buffer(
@@ -235,29 +328,73 @@ pub(super) fn create_static_mesh_index_buffer(
     device: &VulkanLogicalDeviceProbe,
     mesh: &VulkanStaticMesh,
 ) -> Result<VulkanAllocatedBuffer, VulkanSmokeRendererError> {
-    let mut bytes = Vec::with_capacity(mesh.indices.len() * std::mem::size_of::<u32>());
-    for &index in &mesh.indices {
-        bytes.extend_from_slice(&index.to_ne_bytes());
-    }
+    create_index_buffer(instance, device, &mesh.indices)
+}
+
+/// Allocates an index buffer for a frame's retained mesh capacity.
+pub(super) fn create_index_buffer(
+    instance: &VulkanInstanceProbe,
+    device: &VulkanLogicalDeviceProbe,
+    indices: &[u32],
+) -> Result<VulkanAllocatedBuffer, VulkanSmokeRendererError> {
+    let bytes = encode_static_indices(indices)?;
     create_host_visible_buffer(
         instance,
         device,
         &bytes,
         vk::BufferUsageFlags::INDEX_BUFFER,
-        "static mesh index buffer",
+        "dynamic mesh index buffer",
     )
 }
 
+/// Replaces the bytes of a host-visible static index allocation.
+pub(super) fn write_static_mesh_index_buffer(
+    device: &VulkanLogicalDeviceProbe,
+    buffer: &VulkanAllocatedBuffer,
+    indices: &[u32],
+) -> Result<(), VulkanSmokeRendererError> {
+    let bytes = encode_static_indices(indices)?;
+    write_mapped_buffer(
+        device,
+        buffer,
+        &bytes,
+        "vkMapMemory(static mesh index update)",
+    )
+}
+
+fn encode_static_indices(indices: &[u32]) -> Result<Vec<u8>, VulkanSmokeRendererError> {
+    let byte_len = indices
+        .len()
+        .checked_mul(std::mem::size_of::<u32>())
+        .ok_or(VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "static mesh index data size overflows address space",
+        })?;
+    let mut bytes = Vec::new();
+    bytes
+        .try_reserve_exact(byte_len)
+        .map_err(|_| VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "static mesh index data exceeds addressable memory",
+        })?;
+    for &index in indices {
+        bytes.extend_from_slice(&index.to_ne_bytes());
+    }
+    Ok(bytes)
+}
+
 pub(super) fn create_static_texture_image(
     instance: &VulkanInstanceProbe,
     device: &VulkanLogicalDeviceProbe,
     command_pool: vk::CommandPool,
     texture: &VulkanStaticTexture,
 ) -> Result<VulkanAllocatedImage, VulkanSmokeRendererError> {
+    texture
+        .validate()
+        .map_err(|context| VulkanSmokeRendererError::InvalidStaticTexture { context })?;
+    let (mip_bytes, mip_levels) = build_static_texture_mip_chain(texture);
     let staging = create_host_visible_buffer(
         instance,
         device,
-        &texture.rgba8,
+        &mip_bytes,
         vk::BufferUsageFlags::TRANSFER_SRC,
         "static texture staging buffer",
     )?;
@@ -269,7 +406,7 @@ pub(super) fn create_static_texture_image(
             height: texture.height,
             depth: 1,
         })
-        .mip_levels(1)
+        .mip_levels(mip_levels)
         .array_layers(1)
         .samples(vk::SampleCountFlags::TYPE_1)
         .tiling(vk::ImageTiling::OPTIMAL)
@@ -336,6 +473,7 @@ pub(super) fn create_static_texture_image(
         image,
         texture.width,
         texture.height,
+        mip_levels,
     ) {
         // SAFETY: Both resources were created on this device and are being rolled back once.
         unsafe {
@@ -350,7 +488,7 @@ pub(super) fn create_static_texture_image(
         .image(image)
         .view_type(vk::ImageViewType::TYPE_2D)
         .format(vk::Format::R8G8B8A8_UNORM)
-        .subresource_range(color_subresource_range());
+        .subresource_range(color_subresource_range(mip_levels));
     // SAFETY: The image is live, initialized and has the stated color subresource.
     let view = {
         // SAFETY: The image is live, initialized and has the stated color subresource.
@@ -371,9 +509,211 @@ pub(super) fn create_static_texture_image(
         image,
         memory,
         view,
+        width: texture.width,
+        height: texture.height,
+        mip_levels,
     })
 }
 
+/// Allocates two aligned camera slots used by the dynamic frame UBO.
+pub(super) fn create_frame_uniform_buffer(
+    instance: &VulkanInstanceProbe,
+    device: &VulkanLogicalDeviceProbe,
+) -> Result<(VulkanAllocatedBuffer, u64), VulkanSmokeRendererError> {
+    const FRAME_SLOTS: u64 = 2;
+    const FRAME_BYTES: u64 = super::VULKAN_FRAME_UNIFORM_BYTES as u64;
+    let limits =
+        // SAFETY: The physical device belongs to this live instance and the query returns a value copy.
+        unsafe { instance.instance.get_physical_device_properties(device.physical_device()) };
+    let alignment = u64::from(limits.limits.min_uniform_buffer_offset_alignment).max(1);
+    let stride = FRAME_BYTES.checked_add(alignment - 1).ok_or(
+        VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "frame uniform stride overflow",
+        },
+    )? / alignment
+        * alignment;
+    let size =
+        stride
+            .checked_mul(FRAME_SLOTS)
+            .ok_or(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "frame uniform buffer size overflow",
+            })?;
+    let bytes = vec![
+        0_u8;
+        usize::try_from(size).map_err(|_| {
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "frame uniform buffer size exceeds address space",
+            }
+        })?
+    ];
+    let buffer = create_host_visible_buffer(
+        instance,
+        device,
+        &bytes,
+        vk::BufferUsageFlags::UNIFORM_BUFFER,
+        "frame uniform buffer",
+    )?;
+    Ok((buffer, stride))
+}
+
+/// Allocates one aligned storage-buffer record for every material descriptor.
+///
+/// The descriptor uses a dynamic storage-buffer offset.  Keeping the stride
+/// aligned to the physical device limit lets the renderer select a material
+/// record with the same descriptor set for every draw without baking material
+/// indices into the pipeline layout.
+pub(super) fn create_material_specular_buffer(
+    instance: &VulkanInstanceProbe,
+    device: &VulkanLogicalDeviceProbe,
+    material_count: usize,
+) -> Result<(VulkanAllocatedBuffer, u64), VulkanSmokeRendererError> {
+    if material_count == 0 {
+        return Err(VulkanSmokeRendererError::InvariantViolation {
+            context: "material specular buffer has no material records",
+        });
+    }
+    let limits =
+        // SAFETY: The physical device belongs to this live instance and the query returns a value copy.
+        unsafe { instance.instance.get_physical_device_properties(device.physical_device()) };
+    let alignment = limits.limits.min_storage_buffer_offset_alignment.max(1);
+    let record_bytes = super::VULKAN_MATERIAL_SPECULAR_RECORD_BYTES as u64;
+    let stride = record_bytes.checked_add(alignment - 1).ok_or(
+        VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "material specular stride overflow",
+        },
+    )? / alignment
+        * alignment;
+    let count =
+        u64::try_from(material_count).map_err(|_| VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "material specular count exceeds address space",
+        })?;
+    let size = stride
+        .checked_mul(count)
+        .ok_or(VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "material specular buffer size overflow",
+        })?;
+    let bytes =
+        vec![
+            0_u8;
+            usize::try_from(size).map_err(|_| VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "material specular buffer size exceeds address space",
+            })?
+        ];
+    let buffer = create_host_visible_buffer(
+        instance,
+        device,
+        &bytes,
+        vk::BufferUsageFlags::STORAGE_BUFFER,
+        "material specular buffer",
+    )?;
+    Ok((buffer, stride))
+}
+
+/// Replaces all material specular records in one host-coherent upload.
+pub(super) fn write_material_specular_buffer(
+    device: &VulkanLogicalDeviceProbe,
+    buffer: &VulkanAllocatedBuffer,
+    stride: u64,
+    records: &[[[f32; 4]; 2]],
+) -> Result<(), VulkanSmokeRendererError> {
+    if records.is_empty() {
+        return Err(VulkanSmokeRendererError::InvariantViolation {
+            context: "material specular upload has no records",
+        });
+    }
+    let record_bytes = super::VULKAN_MATERIAL_SPECULAR_RECORD_BYTES;
+    let total_bytes = stride
+        .checked_mul(u64::try_from(records.len()).unwrap_or(u64::MAX))
+        .ok_or(VulkanSmokeRendererError::InvariantViolation {
+            context: "material specular upload size",
+        })?;
+    let total_bytes_usize =
+        usize::try_from(total_bytes).map_err(|_| VulkanSmokeRendererError::InvariantViolation {
+            context: "material specular upload size exceeds address space",
+        })?;
+    let mut bytes = vec![0_u8; total_bytes_usize];
+    for (record_index, record) in records.iter().enumerate() {
+        let record_offset = usize::try_from(
+            stride
+                .checked_mul(u64::try_from(record_index).unwrap_or(u64::MAX))
+                .ok_or(VulkanSmokeRendererError::InvariantViolation {
+                    context: "material specular upload offset",
+                })?,
+        )
+        .map_err(|_| VulkanSmokeRendererError::InvariantViolation {
+            context: "material specular upload offset exceeds address space",
+        })?;
+        let mut offset = record_offset;
+        for vector in record {
+            for value in vector {
+                bytes[offset..offset + std::mem::size_of::<f32>()]
+                    .copy_from_slice(&value.to_ne_bytes());
+                offset += std::mem::size_of::<f32>();
+            }
+        }
+        debug_assert_eq!(offset - record_offset, record_bytes);
+    }
+    // SAFETY: The storage buffer is host-visible and the caller has waited for
+    // all prior uses before replacing its records.
+    let mapped = unsafe {
+        device
+            .device()
+            .map_memory(buffer.memory, 0, total_bytes, vk::MemoryMapFlags::empty())
+    }
+    .map_err(|result| VulkanSmokeRendererError::VulkanOperation {
+        context: "vkMapMemory(material specular buffer)",
+        result,
+    })?;
+    // SAFETY: The mapped range is the complete upload and the destination is
+    // valid for the exact byte count copied below.
+    unsafe {
+        std::ptr::copy_nonoverlapping(bytes.as_ptr(), mapped.cast::<u8>(), bytes.len());
+        device.device().unmap_memory(buffer.memory);
+    }
+    Ok(())
+}
+
+/// Writes one complete frame block into the slot selected by the
+/// fence-safe frame index.
+pub(super) fn write_frame_uniform(
+    device: &VulkanLogicalDeviceProbe,
+    buffer: &VulkanAllocatedBuffer,
+    stride: u64,
+    frame_index: usize,
+    bytes: &[u8; super::VULKAN_FRAME_UNIFORM_BYTES],
+) -> Result<(), VulkanSmokeRendererError> {
+    let slot =
+        u64::try_from(frame_index).map_err(|_| VulkanSmokeRendererError::InvariantViolation {
+            context: "frame uniform slot index",
+        })?;
+    let offset = stride
+        .checked_mul(slot)
+        .ok_or(VulkanSmokeRendererError::InvariantViolation {
+            context: "frame uniform slot offset",
+        })?;
+    // SAFETY: The offset is one of the two allocated aligned slots and the
+    // mapped range is exactly one complete frame block.
+    let mapped = unsafe {
+        device.device().map_memory(
+            buffer.memory,
+            offset,
+            super::VULKAN_FRAME_UNIFORM_BYTES as u64,
+            vk::MemoryMapFlags::empty(),
+        )
+    }
+    .map_err(|result| VulkanSmokeRendererError::VulkanOperation {
+        context: "vkMapMemory(frame uniform buffer)",
+        result,
+    })?;
+    // SAFETY: The destination is the mapped frame slot and the byte slice lives
+    // for this copy.
+    unsafe {
+        std::ptr::copy_nonoverlapping(bytes.as_ptr(), mapped.cast::<u8>(), bytes.len());
+        device.device().unmap_memory(buffer.memory);
+    }
+    Ok(())
+}
+
 fn upload_static_texture(
     device: &VulkanLogicalDeviceProbe,
     command_pool: vk::CommandPool,
@@ -381,6 +721,7 @@ fn upload_static_texture(
     image: vk::Image,
     width: u32,
     height: u32,
+    mip_levels: u32,
 ) -> Result<(), VulkanSmokeRendererError> {
     let allocate_info = vk::CommandBufferAllocateInfo::default()
         .command_pool(command_pool)
@@ -407,7 +748,7 @@ fn upload_static_texture(
             result,
         });
     }
-    let range = color_subresource_range();
+    let range = color_subresource_range(mip_levels);
     let to_transfer = vk::ImageMemoryBarrier::default()
         .old_layout(vk::ImageLayout::UNDEFINED)
         .new_layout(vk::ImageLayout::TRANSFER_DST_OPTIMAL)
@@ -415,19 +756,34 @@ fn upload_static_texture(
         .dst_access_mask(vk::AccessFlags::TRANSFER_WRITE)
         .image(image)
         .subresource_range(range);
-    let region = vk::BufferImageCopy::default()
-        .image_subresource(
-            vk::ImageSubresourceLayers::default()
-                .aspect_mask(vk::ImageAspectFlags::COLOR)
-                .mip_level(0)
-                .base_array_layer(0)
-                .layer_count(1),
-        )
-        .image_extent(vk::Extent3D {
-            width,
-            height,
-            depth: 1,
-        });
+    let mut regions = Vec::with_capacity(usize::try_from(mip_levels).unwrap_or(0));
+    let mut buffer_offset = 0_u64;
+    let mut mip_width = width;
+    let mut mip_height = height;
+    for mip_level in 0..mip_levels {
+        let mip_bytes = u64::from(mip_width)
+            .saturating_mul(u64::from(mip_height))
+            .saturating_mul(4);
+        regions.push(
+            vk::BufferImageCopy::default()
+                .buffer_offset(buffer_offset)
+                .image_subresource(
+                    vk::ImageSubresourceLayers::default()
+                        .aspect_mask(vk::ImageAspectFlags::COLOR)
+                        .mip_level(mip_level)
+                        .base_array_layer(0)
+                        .layer_count(1),
+                )
+                .image_extent(vk::Extent3D {
+                    width: mip_width,
+                    height: mip_height,
+                    depth: 1,
+                }),
+        );
+        buffer_offset = buffer_offset.saturating_add(mip_bytes);
+        mip_width = (mip_width / 2).max(1);
+        mip_height = (mip_height / 2).max(1);
+    }
     let to_sampled = vk::ImageMemoryBarrier::default()
         .old_layout(vk::ImageLayout::TRANSFER_DST_OPTIMAL)
         .new_layout(vk::ImageLayout::SHADER_READ_ONLY_OPTIMAL)
@@ -451,7 +807,7 @@ fn upload_static_texture(
             staging_buffer,
             image,
             vk::ImageLayout::TRANSFER_DST_OPTIMAL,
-            &[region],
+            &regions,
         );
         device.device().cmd_pipeline_barrier(
             command_buffer,
@@ -500,6 +856,246 @@ fn upload_static_texture(
     })
 }
 
+/// Replaces the contents of an already sampled texture without changing its
+/// image view or descriptor set.  The caller must wait for the renderer's
+/// submitted work before invoking this function.
+pub(super) fn update_static_texture_image(
+    instance: &VulkanInstanceProbe,
+    device: &VulkanLogicalDeviceProbe,
+    command_pool: vk::CommandPool,
+    image: &VulkanAllocatedImage,
+    texture: &VulkanStaticTexture,
+) -> Result<(), VulkanSmokeRendererError> {
+    texture
+        .validate()
+        .map_err(|context| VulkanSmokeRendererError::InvalidStaticTexture { context })?;
+    let (mip_bytes, mip_levels) = build_static_texture_mip_chain(texture);
+    if texture.width != image.width
+        || texture.height != image.height
+        || mip_levels != image.mip_levels
+    {
+        return Err(VulkanSmokeRendererError::InvalidStaticTexture {
+            context: "dynamic texture extent or mip count differs from allocation",
+        });
+    }
+    let staging = create_host_visible_buffer(
+        instance,
+        device,
+        &mip_bytes,
+        vk::BufferUsageFlags::TRANSFER_SRC,
+        "dynamic texture staging buffer",
+    )?;
+    let allocate_info = vk::CommandBufferAllocateInfo::default()
+        .command_pool(command_pool)
+        .level(vk::CommandBufferLevel::PRIMARY)
+        .command_buffer_count(1);
+    // SAFETY: The command pool is live and owned by the current logical device.
+    let command_buffer = unsafe { device.device().allocate_command_buffers(&allocate_info) }
+        .map_err(|result| {
+            destroy_allocated_buffer(device, &staging);
+            VulkanSmokeRendererError::VulkanOperation {
+                context: "vkAllocateCommandBuffers(dynamic texture upload)",
+                result,
+            }
+        })?[0];
+    let begin =
+        vk::CommandBufferBeginInfo::default().flags(vk::CommandBufferUsageFlags::ONE_TIME_SUBMIT);
+    // SAFETY: The command buffer is freshly allocated from the current pool.
+    if let Err(result) = unsafe { device.device().begin_command_buffer(command_buffer, &begin) } {
+        // SAFETY: The command buffer belongs to this pool and is released on failure.
+        unsafe {
+            device
+                .device()
+                .free_command_buffers(command_pool, &[command_buffer]);
+        };
+        destroy_allocated_buffer(device, &staging);
+        return Err(VulkanSmokeRendererError::VulkanOperation {
+            context: "vkBeginCommandBuffer(dynamic texture upload)",
+            result,
+        });
+    }
+    let range = color_subresource_range(mip_levels);
+    let to_transfer = vk::ImageMemoryBarrier::default()
+        .old_layout(vk::ImageLayout::SHADER_READ_ONLY_OPTIMAL)
+        .new_layout(vk::ImageLayout::TRANSFER_DST_OPTIMAL)
+        .src_access_mask(vk::AccessFlags::SHADER_READ)
+        .dst_access_mask(vk::AccessFlags::TRANSFER_WRITE)
+        .image(image.image)
+        .subresource_range(range);
+    let mut regions = Vec::with_capacity(usize::try_from(mip_levels).unwrap_or(0));
+    let mut buffer_offset = 0_u64;
+    let mut mip_width = texture.width;
+    let mut mip_height = texture.height;
+    for mip_level in 0..mip_levels {
+        let mip_bytes = u64::from(mip_width)
+            .saturating_mul(u64::from(mip_height))
+            .saturating_mul(4);
+        regions.push(
+            vk::BufferImageCopy::default()
+                .buffer_offset(buffer_offset)
+                .image_subresource(
+                    vk::ImageSubresourceLayers::default()
+                        .aspect_mask(vk::ImageAspectFlags::COLOR)
+                        .mip_level(mip_level)
+                        .base_array_layer(0)
+                        .layer_count(1),
+                )
+                .image_extent(vk::Extent3D {
+                    width: mip_width,
+                    height: mip_height,
+                    depth: 1,
+                }),
+        );
+        buffer_offset = buffer_offset.saturating_add(mip_bytes);
+        mip_width = (mip_width / 2).max(1);
+        mip_height = (mip_height / 2).max(1);
+    }
+    let to_sampled = vk::ImageMemoryBarrier::default()
+        .old_layout(vk::ImageLayout::TRANSFER_DST_OPTIMAL)
+        .new_layout(vk::ImageLayout::SHADER_READ_ONLY_OPTIMAL)
+        .src_access_mask(vk::AccessFlags::TRANSFER_WRITE)
+        .dst_access_mask(vk::AccessFlags::SHADER_READ)
+        .image(image.image)
+        .subresource_range(range);
+    // SAFETY: The caller has made all prior shader reads idle, and the image
+    // remains exclusively owned by this graphics queue.
+    unsafe {
+        device.device().cmd_pipeline_barrier(
+            command_buffer,
+            vk::PipelineStageFlags::FRAGMENT_SHADER,
+            vk::PipelineStageFlags::TRANSFER,
+            vk::DependencyFlags::empty(),
+            &[],
+            &[],
+            &[to_transfer],
+        );
+        device.device().cmd_copy_buffer_to_image(
+            command_buffer,
+            staging.buffer,
+            image.image,
+            vk::ImageLayout::TRANSFER_DST_OPTIMAL,
+            &regions,
+        );
+        device.device().cmd_pipeline_barrier(
+            command_buffer,
+            vk::PipelineStageFlags::TRANSFER,
+            vk::PipelineStageFlags::FRAGMENT_SHADER,
+            vk::DependencyFlags::empty(),
+            &[],
+            &[],
+            &[to_sampled],
+        );
+    }
+    // SAFETY: Command recording is complete on the current command buffer.
+    if let Err(result) = unsafe { device.device().end_command_buffer(command_buffer) } {
+        // SAFETY: The command buffer belongs to this pool and is released on failure.
+        unsafe {
+            device
+                .device()
+                .free_command_buffers(command_pool, &[command_buffer]);
+        };
+        destroy_allocated_buffer(device, &staging);
+        return Err(VulkanSmokeRendererError::VulkanOperation {
+            context: "vkEndCommandBuffer(dynamic texture upload)",
+            result,
+        });
+    }
+    let command_buffers = [command_buffer];
+    let submit = [vk::SubmitInfo::default().command_buffers(&command_buffers)];
+    // SAFETY: The graphics queue and submitted command buffer remain live
+    // until this synchronous wait completes.
+    let submit_result = unsafe {
+        device
+            .device()
+            .queue_submit(device.graphics_queue(), &submit, vk::Fence::null())
+    };
+    let result = submit_result
+        .and_then(|()| unsafe { device.device().queue_wait_idle(device.graphics_queue()) });
+    // SAFETY: Submission completed or failed synchronously.
+    unsafe {
+        device
+            .device()
+            .free_command_buffers(command_pool, &[command_buffer]);
+    }
+    destroy_allocated_buffer(device, &staging);
+    result.map_err(|result| VulkanSmokeRendererError::VulkanOperation {
+        context: "vkQueueSubmit/WaitIdle(dynamic texture upload)",
+        result,
+    })
+}
+
+/// Builds an RGBA8 mip chain on the CPU so texture upload does not depend on
+/// optional linear-blit support for the device's UNORM format.
+fn build_static_texture_mip_chain(texture: &VulkanStaticTexture) -> (Vec<u8>, u32) {
+    if !texture.mip_levels.is_empty() {
+        let mut bytes = Vec::new();
+        for mip in &texture.mip_levels {
+            bytes.extend_from_slice(&mip.rgba8);
+        }
+        return (
+            bytes,
+            u32::try_from(texture.mip_levels.len()).unwrap_or(u32::MAX),
+        );
+    }
+    let mut bytes = texture.rgba8.clone();
+    let mut level = texture.rgba8.clone();
+    let mut width = texture.width;
+    let mut height = texture.height;
+    let mut mip_levels = 1_u32;
+
+    while width > 1 || height > 1 {
+        let next_width = (width / 2).max(1);
+        let next_height = (height / 2).max(1);
+        let mut next = vec![
+            0_u8;
+            usize::try_from(next_width)
+                .unwrap_or(0)
+                .saturating_mul(usize::try_from(next_height).unwrap_or(0))
+                .saturating_mul(4)
+        ];
+        for y in 0..next_height {
+            for x in 0..next_width {
+                let dst = (usize::try_from(y).unwrap_or(0)
+                    * usize::try_from(next_width).unwrap_or(0)
+                    + usize::try_from(x).unwrap_or(0))
+                    * 4;
+                let x0 = x.saturating_mul(2).min(width.saturating_sub(1));
+                let y0 = y.saturating_mul(2).min(height.saturating_sub(1));
+                let x1 = x0.saturating_add(1).min(width.saturating_sub(1));
+                let y1 = y0.saturating_add(1).min(height.saturating_sub(1));
+                let source_width = usize::try_from(width).unwrap_or(0);
+                let samples = [
+                    (usize::try_from(y0).unwrap_or(0) * source_width
+                        + usize::try_from(x0).unwrap_or(0))
+                        * 4,
+                    (usize::try_from(y0).unwrap_or(0) * source_width
+                        + usize::try_from(x1).unwrap_or(0))
+                        * 4,
+                    (usize::try_from(y1).unwrap_or(0) * source_width
+                        + usize::try_from(x0).unwrap_or(0))
+                        * 4,
+                    (usize::try_from(y1).unwrap_or(0) * source_width
+                        + usize::try_from(x1).unwrap_or(0))
+                        * 4,
+                ];
+                for channel in 0..4 {
+                    let sum: u16 = samples
+                        .iter()
+                        .map(|&offset| u16::from(level[offset + channel]))
+                        .sum();
+                    next[dst + channel] = u8::try_from((sum + 2) / 4).unwrap_or(u8::MAX);
+                }
+            }
+        }
+        bytes.extend_from_slice(&next);
+        level = next;
+        width = next_width;
+        height = next_height;
+        mip_levels = mip_levels.saturating_add(1);
+    }
+    (bytes, mip_levels)
+}
+
 pub(super) fn destroy_allocated_image(
     device: &VulkanLogicalDeviceProbe,
     image: &VulkanAllocatedImage,
@@ -624,36 +1220,24 @@ pub(super) fn create_frame_sync(
     let mut sync = Vec::with_capacity(2);
     for _ in 0..2 {
         // SAFETY: The sync objects belong to this live logical device and are destroyed at teardown.
-        let image_available = unsafe { device.device().create_semaphore(&semaphore_info, None) }
-            .map_err(|error| VulkanSmokeRendererError::VulkanOperation {
-                context: "vkCreateSemaphore(image_available)",
-                result: error,
-            })?;
-        let render_finished = {
-            // SAFETY: The sync objects belong to this live logical device and are destroyed at teardown.
+        let image_available =
             match unsafe { device.device().create_semaphore(&semaphore_info, None) } {
-                Ok(render_finished) => render_finished,
+                Ok(image_available) => image_available,
                 Err(error) => {
                     destroy_frame_sync_objects(device, &sync);
-                    // SAFETY: The semaphore was created above on this logical device and is destroyed on setup failure.
-                    unsafe { device.device().destroy_semaphore(image_available, None) };
                     return Err(VulkanSmokeRendererError::VulkanOperation {
-                        context: "vkCreateSemaphore(render_finished)",
+                        context: "vkCreateSemaphore(image_available)",
                         result: error,
                     });
                 }
-            }
-        };
+            };
         // SAFETY: The fence belongs to this live logical device and is destroyed at teardown.
         let fence = match unsafe { device.device().create_fence(&fence_info, None) } {
             Ok(fence) => fence,
             Err(error) => {
                 destroy_frame_sync_objects(device, &sync);
-                // SAFETY: These semaphores were created above on this logical device and are destroyed on setup failure.
-                unsafe {
-                    device.device().destroy_semaphore(image_available, None);
-                    device.device().destroy_semaphore(render_finished, None);
-                }
+                // SAFETY: The semaphore was created above on this logical device and is destroyed on setup failure.
+                unsafe { device.device().destroy_semaphore(image_available, None) };
                 return Err(VulkanSmokeRendererError::VulkanOperation {
                     context: "vkCreateFence",
                     result: error,
@@ -662,7 +1246,6 @@ pub(super) fn create_frame_sync(
         };
         sync.push(VulkanFrameSync {
             image_available,
-            render_finished,
             fence,
         });
     }
@@ -676,9 +1259,6 @@ fn destroy_frame_sync_objects(device: &VulkanLogicalDeviceProbe, sync: &[VulkanF
             device
                 .device()
                 .destroy_semaphore(frame_sync.image_available, None);
-            device
-                .device()
-                .destroy_semaphore(frame_sync.render_finished, None);
             device.device().destroy_fence(frame_sync.fence, None);
         }
     }
@@ -738,11 +1318,11 @@ pub(super) fn readback_buffer_bytes(
     Ok(bytes)
 }
 
-pub(super) fn color_subresource_range() -> vk::ImageSubresourceRange {
+pub(super) fn color_subresource_range(level_count: u32) -> vk::ImageSubresourceRange {
     vk::ImageSubresourceRange::default()
         .aspect_mask(vk::ImageAspectFlags::COLOR)
         .base_mip_level(0)
-        .level_count(1)
+        .level_count(level_count)
         .base_array_layer(0)
         .layer_count(1)
 }
diff --git a/adapters/fparkan-render-vulkan/src/ffi/smoke.rs b/adapters/fparkan-render-vulkan/src/ffi/smoke.rs
index e2f6c34..e8e18ac 100644
--- a/adapters/fparkan-render-vulkan/src/ffi/smoke.rs
+++ b/adapters/fparkan-render-vulkan/src/ffi/smoke.rs
@@ -1,15 +1,19 @@
 #![allow(unsafe_code)]
 
 use ash::vk;
+use fparkan_render::LegacyDepthMode;
 
 use super::smoke_types::resolve_draw_texture_indices;
+use super::update_material_texture_descriptor;
 use super::{
-    create_command_pool, create_frame_sync, create_static_mesh_index_buffer,
+    create_command_pool, create_frame_sync, create_index_buffer, create_static_mesh_index_buffer,
     create_static_mesh_vertex_buffer, create_static_texture_image, create_swapchain_resources,
-    create_validation_messenger, create_vulkan_instance_probe,
+    create_validation_messenger, create_vertex_buffer, create_vulkan_instance_probe,
     create_vulkan_logical_device_probe_for_request, create_vulkan_surface_probe,
     create_vulkan_swapchain_probe_for_extent, destroy_allocated_buffer, destroy_allocated_image,
-    destroy_swapchain_resources, plan_vulkan_surface, readback_buffer_bytes, VulkanAllocatedBuffer,
+    destroy_swapchain_resources, plan_vulkan_surface, readback_buffer_bytes,
+    update_static_texture_image, write_frame_uniform, write_material_specular_buffer,
+    write_static_mesh_index_buffer, write_static_mesh_vertex_buffer, VulkanAllocatedBuffer,
     VulkanInstanceConfig, VulkanInstanceProbe, VulkanLogicalDeviceProbe, VulkanReadbackArtifact,
     VulkanSmokeFrameOutcome, VulkanSmokeRenderer, VulkanSmokeRendererCreateInfo,
     VulkanSmokeRendererError, VulkanSmokeRendererReport, VulkanSmokeShutdownReport,
@@ -185,38 +189,225 @@ impl VulkanSmokeRenderer {
                     return Err(error);
                 }
             };
-        // Keep the compatibility triangle path valid: it samples a white texel
-        // when no original TEXM was supplied.
+        // Keep the compatibility triangle path valid: a white base texel,
+        // neutral detail texels and a transparent white overlay make the
+        // additional terrain stages mathematically transparent.
         let fallback_texture = super::VulkanStaticTexture {
             width: 1,
             height: 1,
             rgba8: vec![255, 255, 255, 255],
+            mip_levels: Vec::new(),
         };
+        let fallback_detail_texture = super::VulkanStaticTexture {
+            width: 1,
+            height: 1,
+            rgba8: vec![128, 128, 128, 255],
+            mip_levels: Vec::new(),
+        };
+        let fallback_overlay_texture = super::VulkanStaticTexture {
+            width: 1,
+            height: 1,
+            rgba8: vec![255, 255, 255, 0],
+            mip_levels: Vec::new(),
+        };
+        // Fallback stages are immutable compatibility images. Keep one
+        // allocation for each fallback kind and map every logical material
+        // slot to it. Authored images remain one-per-slot because dynamic
+        // phase uploads must never couple two materials.
         let texture_sources = if create_info.materials.is_empty() {
-            vec![&fallback_texture]
+            vec![
+                (&fallback_texture, Some(0_usize)),
+                (&fallback_detail_texture, Some(1_usize)),
+                (&fallback_overlay_texture, Some(2_usize)),
+                (&fallback_detail_texture, Some(1_usize)),
+            ]
+        } else {
+            let mut sources = Vec::with_capacity(create_info.materials.len() * 4);
+            for material in &create_info.materials {
+                sources.push((&material.texture, None));
+                sources.push((
+                    material
+                        .detail_texture
+                        .as_ref()
+                        .map_or(&fallback_detail_texture, |texture| texture),
+                    material.detail_texture.is_none().then_some(1_usize),
+                ));
+                sources.push((
+                    material
+                        .overlay_texture
+                        .as_ref()
+                        .map_or(&fallback_overlay_texture, |texture| texture),
+                    material.overlay_texture.is_none().then_some(2_usize),
+                ));
+                sources.push((
+                    material
+                        .overlay_detail_texture
+                        .as_ref()
+                        .map_or(&fallback_detail_texture, |texture| texture),
+                    material.overlay_detail_texture.is_none().then_some(1_usize),
+                ));
+            }
+            sources
+        };
+        let mut textures = Vec::with_capacity(texture_sources.len());
+        let mut texture_slot_indices = Vec::with_capacity(texture_sources.len());
+        let mut fallback_image_indices = [None; 3];
+        for (texture_source, fallback_kind) in texture_sources {
+            let texture_index = if let Some(fallback_kind) = fallback_kind {
+                if let Some(texture_index) = fallback_image_indices[fallback_kind] {
+                    texture_index
+                } else {
+                    let image = match create_static_texture_image(
+                        &instance,
+                        &device,
+                        command_pool,
+                        texture_source,
+                    ) {
+                        Ok(image) => image,
+                        Err(error) => {
+                            for texture in &textures {
+                                destroy_allocated_image(&device, texture);
+                            }
+                            // SAFETY: These resources belong to this live device and are rolled back before it drops.
+                            unsafe { device.device().destroy_command_pool(command_pool, None) };
+                            destroy_allocated_buffer(&device, &index_buffer);
+                            destroy_allocated_buffer(&device, &vertex_buffer);
+                            return Err(error);
+                        }
+                    };
+                    let texture_index = textures.len();
+                    textures.push(image);
+                    fallback_image_indices[fallback_kind] = Some(texture_index);
+                    texture_index
+                }
+            } else {
+                let image = match create_static_texture_image(
+                    &instance,
+                    &device,
+                    command_pool,
+                    texture_source,
+                ) {
+                    Ok(image) => image,
+                    Err(error) => {
+                        for texture in &textures {
+                            destroy_allocated_image(&device, texture);
+                        }
+                        // SAFETY: These resources belong to this live device and are rolled back before it drops.
+                        unsafe { device.device().destroy_command_pool(command_pool, None) };
+                        destroy_allocated_buffer(&device, &index_buffer);
+                        destroy_allocated_buffer(&device, &vertex_buffer);
+                        return Err(error);
+                    }
+                };
+                let texture_index = textures.len();
+                textures.push(image);
+                texture_index
+            };
+            texture_slot_indices.push(texture_index);
+        }
+        let material_alphas = if create_info.materials.is_empty() {
+            vec![[1.0, 0.0]]
         } else {
             create_info
                 .materials
                 .iter()
-                .map(|material| &material.texture)
+                .map(|material| {
+                    [
+                        material.diffuse_alpha,
+                        material.overlay_diffuse_alpha.unwrap_or(0.0),
+                    ]
+                })
+                .collect()
+        };
+        let material_lighting = if create_info.materials.is_empty() {
+            vec![[[1.0; 3], [0.0; 3], [1.0; 3], [0.0; 3]]]
+        } else {
+            create_info
+                .materials
+                .iter()
+                .map(|material| {
+                    [
+                        material.directional_rgb,
+                        material.additive_rgb,
+                        material.overlay_directional_rgb.unwrap_or([1.0; 3]),
+                        material.overlay_additive_rgb.unwrap_or([0.0; 3]),
+                    ]
+                })
+                .collect()
+        };
+        let material_uv_transforms = if create_info.materials.is_empty() {
+            vec![[[0.0, 0.0, 1.0, 1.0]; 4]]
+        } else {
+            create_info
+                .materials
+                .iter()
+                .map(|material| {
+                    [
+                        material.uv_transform,
+                        material.detail_uv_transform,
+                        material
+                            .overlay_uv_transform
+                            .unwrap_or([0.0, 0.0, 1.0, 1.0]),
+                        material
+                            .overlay_detail_uv_transform
+                            .unwrap_or([0.0, 0.0, 1.0, 1.0]),
+                    ]
+                })
+                .collect()
+        };
+        let material_unlit = if create_info.materials.is_empty() {
+            vec![0.0]
+        } else {
+            create_info
+                .materials
+                .iter()
+                .map(|material| {
+                    let combiner_mode = if material.lightmap_mode {
+                        3.0
+                    } else if material.sky_nebula_stars {
+                        2.0
+                    } else if material.unlit {
+                        1.0
+                    } else {
+                        0.0
+                    };
+                    combiner_mode + if material.sky_far_depth { 4.0 } else { 0.0 }
+                })
+                .collect()
+        };
+        let material_specular = if create_info.materials.is_empty() {
+            vec![[[0.0; 4]; 2]]
+        } else {
+            create_info
+                .materials
+                .iter()
+                .map(|material| {
+                    [
+                        [
+                            material.specular_rgb[0],
+                            material.specular_rgb[1],
+                            material.specular_rgb[2],
+                            f32::from(material.specular_power),
+                        ],
+                        [
+                            material.overlay_specular_rgb.unwrap_or([0.0; 3])[0],
+                            material.overlay_specular_rgb.unwrap_or([0.0; 3])[1],
+                            material.overlay_specular_rgb.unwrap_or([0.0; 3])[2],
+                            f32::from(material.overlay_specular_power.unwrap_or(0)),
+                        ],
+                    ]
+                })
+                .collect()
+        };
+        let material_selectors = if create_info.materials.is_empty() {
+            vec![0]
+        } else {
+            create_info
+                .materials
+                .iter()
+                .map(|material| material.material_index)
                 .collect()
         };
-        let mut textures = Vec::with_capacity(texture_sources.len());
-        for texture_source in texture_sources {
-            match create_static_texture_image(&instance, &device, command_pool, texture_source) {
-                Ok(image) => textures.push(image),
-                Err(error) => {
-                    for texture in &textures {
-                        destroy_allocated_image(&device, texture);
-                    }
-                    // SAFETY: These resources belong to this live device and are rolled back before it drops.
-                    unsafe { device.device().destroy_command_pool(command_pool, None) };
-                    destroy_allocated_buffer(&device, &index_buffer);
-                    destroy_allocated_buffer(&device, &vertex_buffer);
-                    return Err(error);
-                }
-            }
-        }
         let mut renderer = Self {
             instance: Some(instance),
             validation,
@@ -227,10 +418,38 @@ impl VulkanSmokeRenderer {
             swapchain_resources: None,
             vertex_buffer: Some(vertex_buffer),
             index_buffer: Some(index_buffer),
+            texture_slot_indices,
             textures,
+            vertex_count: create_info.mesh.vertices.len(),
+            index_capacity: create_info.mesh.indices.len(),
+            draw_range_capacities: create_info
+                .mesh
+                .draw_ranges
+                .iter()
+                .map(|range| range.index_count)
+                .collect(),
             draw_ranges: create_info.mesh.draw_ranges.clone(),
             draw_texture_indices,
+            draw_order: (0..create_info.mesh.draw_ranges.len()).collect(),
+            draw_range_sort_keys: vec![None; create_info.mesh.draw_ranges.len()],
+            draw_order_dirty: false,
+            draw_range_world_queue: vec![None; create_info.mesh.draw_ranges.len()],
+            draw_range_base_pipeline_states: create_info
+                .mesh
+                .draw_ranges
+                .iter()
+                .map(|range| range.pipeline_state)
+                .collect(),
+            material_alphas,
+            material_lighting,
+            material_uv_transforms,
+            material_unlit,
+            material_specular,
+            material_selectors,
+            material_specular_dirty: true,
+            readback_enabled: false,
             camera: create_info.camera,
+            frame_uniforms: super::VulkanFrameUniforms::from_camera(create_info.camera),
             frame_sync: Vec::new(),
             images_in_flight: Vec::new(),
             current_frame: 0,
@@ -318,6 +537,12 @@ impl VulkanSmokeRenderer {
         self.camera
     }
 
+    /// Returns the frame state uploaded before the next recorded frame.
+    #[must_use]
+    pub const fn frame_uniforms(&self) -> super::VulkanFrameUniforms {
+        self.frame_uniforms
+    }
+
     /// Replaces the camera for subsequent frames without recreating GPU resources.
     ///
     /// # Errors
@@ -335,6 +560,585 @@ impl VulkanSmokeRenderer {
             });
         }
         self.camera = camera;
+        self.frame_uniforms.clip_from_world = camera.clip_from_world;
+        Ok(())
+    }
+
+    /// Replaces lighting, fog, camera-position and matrix state for
+    /// subsequent frames without recreating GPU resources.
+    ///
+    /// # Errors
+    ///
+    /// Returns [`VulkanSmokeRendererError::InvalidStaticCamera`] when any
+    /// submitted value is non-finite. The caller must update only between
+    /// [`Self::draw_frame`] calls on the renderer-owning thread.
+    pub fn set_frame_uniforms(
+        &mut self,
+        frame_uniforms: super::VulkanFrameUniforms,
+    ) -> Result<(), VulkanSmokeRendererError> {
+        if !frame_uniforms.is_finite() {
+            return Err(VulkanSmokeRendererError::InvalidStaticCamera {
+                context: "non-finite frame uniform",
+            });
+        }
+        self.camera.clip_from_world = frame_uniforms.clip_from_world;
+        self.frame_uniforms = frame_uniforms;
+        Ok(())
+    }
+
+    /// Enables the optional swapchain image copy used by screenshot/readback
+    /// callers. Runtime frames leave it disabled to avoid a transfer every
+    /// frame.
+    pub fn set_readback_enabled(&mut self, enabled: bool) {
+        self.readback_enabled = enabled;
+        if !enabled {
+            self.last_readback_image_index = None;
+        }
+    }
+
+    /// Replaces the shared vertex allocation between frames.
+    ///
+    /// The initial mesh owns enough vertices for the scene's dynamic slots;
+    /// callers update those slots in place as camera-relative environment
+    /// geometry moves.  The device is idled before the host-visible write so
+    /// no submitted command can observe a partial update.
+    pub fn update_vertices(
+        &mut self,
+        vertices: &[super::VulkanStaticVertex],
+    ) -> Result<(), VulkanSmokeRendererError> {
+        if vertices.len() != self.vertex_count {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "updated static mesh vertex count differs from allocation",
+            });
+        }
+        // SAFETY: The renderer owns the queue and all submitted work; waiting
+        // for idle makes the shared vertex allocation quiescent.
+        unsafe { self.device_ref()?.device().device_wait_idle() }.map_err(|result| {
+            VulkanSmokeRendererError::VulkanOperation {
+                context: "vkDeviceWaitIdle(static mesh vertex update)",
+                result,
+            }
+        })?;
+        write_static_mesh_vertex_buffer(self.device_ref()?, self.vertex_buffer_ref()?, vertices)
+    }
+
+    /// Uploads the current shared mesh while retaining dynamic draw state.
+    ///
+    /// Environment geometry and projected shadow geometry share the original
+    /// vertex/index allocations. `geometry_ranges` carries only the ranges
+    /// whose index segment changed; material selection, blend/depth state,
+    /// transparency classification, and active counts owned by other setters
+    /// remain untouched. The allocations grow to the largest submitted frame
+    /// and never grow for a frame that fits the retained capacity.
+    ///
+    /// A range with `index_count == 0` is valid and disables that range for the
+    /// frame. The mesh itself still needs at least one vertex and one index so
+    /// Vulkan never receives a zero-sized allocation.
+    pub fn update_mesh_geometry(
+        &mut self,
+        vertices: &[super::VulkanStaticVertex],
+        indices: &[u32],
+        geometry_ranges: &[super::VulkanDynamicDrawRange],
+    ) -> Result<(), VulkanSmokeRendererError> {
+        validate_geometry_upload(
+            vertices,
+            indices,
+            &self.draw_ranges,
+            geometry_ranges,
+            self.vertex_count,
+            self.index_capacity,
+        )?;
+
+        let vertex_grew = vertices.len() > self.vertex_count;
+        let index_grew = indices.len() > self.index_capacity;
+
+        // SAFETY: The renderer owns the queue and all submitted work. Waiting
+        // before either writing or replacing a shared allocation keeps old
+        // command buffers from observing a partial upload.
+        unsafe { self.device_ref()?.device().device_wait_idle() }.map_err(|result| {
+            VulkanSmokeRendererError::VulkanOperation {
+                context: "vkDeviceWaitIdle(dynamic mesh update)",
+                result,
+            }
+        })?;
+
+        let (new_vertex_buffer, new_index_buffer) = if vertex_grew || index_grew {
+            let instance = self.instance_ref()?;
+            let device = self.device_ref()?;
+            let new_vertex_buffer = if vertex_grew {
+                Some(create_vertex_buffer(instance, device, vertices)?)
+            } else {
+                None
+            };
+            let new_index_buffer = if index_grew {
+                match create_index_buffer(instance, device, indices) {
+                    Ok(buffer) => Some(buffer),
+                    Err(error) => {
+                        if let Some(buffer) = new_vertex_buffer.as_ref() {
+                            destroy_allocated_buffer(device, buffer);
+                        }
+                        return Err(error);
+                    }
+                }
+            } else {
+                None
+            };
+            if !vertex_grew {
+                if let Err(error) =
+                    write_static_mesh_vertex_buffer(device, self.vertex_buffer_ref()?, vertices)
+                {
+                    if let Some(buffer) = new_vertex_buffer.as_ref() {
+                        destroy_allocated_buffer(device, buffer);
+                    }
+                    if let Some(buffer) = new_index_buffer.as_ref() {
+                        destroy_allocated_buffer(device, buffer);
+                    }
+                    return Err(error);
+                }
+            }
+            if !index_grew {
+                if let Err(error) =
+                    write_static_mesh_index_buffer(device, self.index_buffer_ref()?, indices)
+                {
+                    if let Some(buffer) = new_vertex_buffer.as_ref() {
+                        destroy_allocated_buffer(device, buffer);
+                    }
+                    if let Some(buffer) = new_index_buffer.as_ref() {
+                        destroy_allocated_buffer(device, buffer);
+                    }
+                    return Err(error);
+                }
+            }
+            (new_vertex_buffer, new_index_buffer)
+        } else {
+            let device = self.device_ref()?;
+            write_static_mesh_vertex_buffer(device, self.vertex_buffer_ref()?, vertices)?;
+            write_static_mesh_index_buffer(device, self.index_buffer_ref()?, indices)?;
+            (None, None)
+        };
+
+        if let Some(buffer) = new_vertex_buffer {
+            let old = self.vertex_buffer.replace(buffer);
+            if let Some(old) = old {
+                destroy_allocated_buffer(self.device_ref()?, &old);
+            }
+            self.vertex_count = vertices.len();
+        }
+        if let Some(buffer) = new_index_buffer {
+            let old = self.index_buffer.replace(buffer);
+            if let Some(old) = old {
+                destroy_allocated_buffer(self.device_ref()?, &old);
+            }
+            self.index_capacity = indices.len();
+        }
+
+        apply_geometry_range_updates(
+            &mut self.draw_ranges,
+            &mut self.draw_range_capacities,
+            geometry_ranges,
+        );
+        Ok(())
+    }
+
+    /// Replaces one material texture in place while retaining its descriptor
+    /// set and sampler.  This is used by dynamic fixed-size atlases such as
+    /// the native 256 by 256 projected-shadow texture.
+    ///
+    /// The updated image must have the same dimensions and generated/authored
+    /// mip count as the texture allocated during renderer creation.  The
+    /// renderer idles its device before the transfer, so callers may invoke
+    /// this between frame updates without taking ownership of Vulkan handles.
+    pub fn update_material_texture(
+        &mut self,
+        material_index: usize,
+        texture_slot: usize,
+        texture: &super::VulkanStaticTexture,
+    ) -> Result<(), VulkanSmokeRendererError> {
+        if texture_slot >= 4 {
+            return Err(VulkanSmokeRendererError::InvalidStaticTexture {
+                context: "dynamic material texture slot is out of bounds",
+            });
+        }
+        let logical_texture_index = material_index
+            .checked_mul(4)
+            .and_then(|index| index.checked_add(texture_slot))
+            .ok_or(VulkanSmokeRendererError::InvalidStaticTexture {
+                context: "dynamic material texture index overflows address space",
+            })?;
+        let texture_index = self
+            .texture_slot_indices
+            .get(logical_texture_index)
+            .copied()
+            .ok_or(VulkanSmokeRendererError::InvalidStaticTexture {
+                context: "dynamic material texture index is out of bounds",
+            })?;
+        if self.textures.get(texture_index).is_none() {
+            return Err(VulkanSmokeRendererError::InvalidStaticTexture {
+                context: "dynamic material texture index is out of bounds",
+            });
+        }
+        {
+            let device = self.device_ref()?;
+            // SAFETY: every submission made by this renderer uses this device; the
+            // idle wait makes all descriptor image reads quiescent before upload.
+            unsafe { device.device().device_wait_idle() }.map_err(|result| {
+                VulkanSmokeRendererError::VulkanOperation {
+                    context: "vkDeviceWaitIdle(dynamic texture update)",
+                    result,
+                }
+            })?;
+        }
+        let shared_texture = self
+            .texture_slot_indices
+            .iter()
+            .filter(|mapped_index| **mapped_index == texture_index)
+            .count()
+            > 1;
+        if shared_texture {
+            // A fallback image can serve many logical slots. Detach the
+            // requested slot before uploading so this public update method
+            // keeps its one-material/one-slot semantics.
+            let image = {
+                let instance = self.instance_ref()?;
+                let device = self.device_ref()?;
+                create_static_texture_image(instance, device, self.command_pool, texture)?
+            };
+            let new_texture_index = self.textures.len();
+            self.textures.push(image);
+            self.texture_slot_indices[logical_texture_index] = new_texture_index;
+            let device = self.device_ref()?;
+            let resources = self.resources_ref()?;
+            update_material_texture_descriptor(
+                device,
+                resources,
+                material_index,
+                texture_slot,
+                &self.textures[new_texture_index],
+            )
+        } else {
+            let instance = self.instance_ref()?;
+            let device = self.device_ref()?;
+            let image = self.textures.get(texture_index).ok_or(
+                VulkanSmokeRendererError::InvalidStaticTexture {
+                    context: "dynamic material texture index is out of bounds",
+                },
+            )?;
+            update_static_texture_image(instance, device, self.command_pool, image, texture)
+        }
+    }
+
+    /// Changes one draw range's active index count while retaining its
+    /// pipeline and material selector.  This lets a fixed-capacity weather
+    /// allocation draw only the particles emitted in the current frame.
+    pub fn set_draw_range_index_count(
+        &mut self,
+        range_index: usize,
+        index_count: u32,
+    ) -> Result<(), VulkanSmokeRendererError> {
+        if index_count % 3 != 0 {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic draw range index count is not a triangle count",
+            });
+        }
+        let capacity = self.draw_range_capacities.get(range_index).copied().ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic draw range index is out of bounds",
+            },
+        )?;
+        if index_count > capacity {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic draw range exceeds its index allocation",
+            });
+        }
+        let range = self.draw_ranges.get_mut(range_index).ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic draw range index is out of bounds",
+            },
+        )?;
+        range.index_count = index_count;
+        Ok(())
+    }
+
+    /// Sets the native per-range alpha reference in legacy 0..=255 units.
+    ///
+    /// A value of zero selects the renderer's proven native default (one) for
+    /// alpha-test ranges.  The update is dynamic and does not recreate a
+    /// graphics pipeline.
+    pub fn set_draw_range_alpha_test_reference(
+        &mut self,
+        range_index: usize,
+        alpha_test_reference: u8,
+    ) -> Result<(), VulkanSmokeRendererError> {
+        let range = self.draw_ranges.get_mut(range_index).ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic draw range index is out of bounds",
+            },
+        )?;
+        range.alpha_test_reference = alpha_test_reference;
+        Ok(())
+    }
+
+    /// Marks a draw range as belonging to the native transparent queue.
+    ///
+    /// The flag is deliberately independent of the blend category: native
+    /// materials can blend while retaining depth writes, and some alpha
+    /// materials are depth-tested opaque.  When enabled, a range that uses a
+    /// depth attachment switches to depth-test/read-only.  The original depth
+    /// state is retained so disabling the flag restores the caller's state.
+    ///
+    /// The transparent flag only participates in the world draw order.  The
+    /// backend keeps every unmarked range in its original slot, which leaves
+    /// the fixed screen/sky/weather pass order intact.
+    pub fn set_draw_range_transparency(
+        &mut self,
+        range_index: usize,
+        transparent: bool,
+    ) -> Result<(), VulkanSmokeRendererError> {
+        let base_state = *self
+            .draw_range_base_pipeline_states
+            .get(range_index)
+            .ok_or(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic draw range index is out of bounds",
+            })?;
+        let range = self.draw_ranges.get_mut(range_index).ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic draw range index is out of bounds",
+            },
+        )?;
+        let depth = if transparent && base_state.depth != LegacyDepthMode::Disabled {
+            LegacyDepthMode::TestReadOnly
+        } else {
+            base_state.depth
+        };
+        let mut next_state = base_state;
+        next_state.depth = depth;
+        let pipeline_changed = range.pipeline_state != next_state;
+        range.pipeline_state = next_state;
+        // Calling this setter opts the range into the world queue.  Fixed
+        // screen/sky/weather ranges remain `None` because their pass order is
+        // intentionally owned by the caller.
+        self.draw_range_world_queue[range_index] = Some(transparent);
+        self.draw_order_dirty = true;
+        if pipeline_changed {
+            self.rebuild_pipeline_resources()?;
+        }
+        Ok(())
+    }
+
+    /// Supplies the native camera-sort key returned by the draw-item camera
+    /// callback.  The native callback computes Euclidean distance from the
+    /// camera to the first world vertex of the whole indexed batch.
+    ///
+    /// The recovered comparator inserts in descending floating-point camera
+    /// key order.  Keeping the key separate from the range handle mirrors the
+    /// native layer's callback result and its `[item pointer, key]` entries.
+    pub fn set_draw_range_sort_key(
+        &mut self,
+        range_index: usize,
+        sort_key: f32,
+    ) -> Result<(), VulkanSmokeRendererError> {
+        if !sort_key.is_finite() {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "native draw sort key must be finite",
+            });
+        }
+        let key = self.draw_range_sort_keys.get_mut(range_index).ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic draw range index is out of bounds",
+            },
+        )?;
+        *key = Some(sort_key);
+        self.draw_order_dirty = true;
+        Ok(())
+    }
+
+    /// Returns the current stable range-handle order used by command
+    /// recording.  Handles are indices into the original `draw_ranges` vector.
+    #[must_use]
+    pub fn draw_order(&self) -> &[usize] {
+        &self.draw_order
+    }
+
+    /// Changes the diffuse and overlay alpha values carried by one material's
+    /// push constants.  The descriptor images remain unchanged.
+    pub fn set_material_alphas(
+        &mut self,
+        material_index: usize,
+        diffuse_alpha: f32,
+        overlay_alpha: f32,
+    ) -> Result<(), VulkanSmokeRendererError> {
+        if !diffuse_alpha.is_finite()
+            || !overlay_alpha.is_finite()
+            || !(0.0..=1.0).contains(&diffuse_alpha)
+            || !(0.0..=1.0).contains(&overlay_alpha)
+        {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic material alpha must be finite and 0..1",
+            });
+        }
+        let alphas = self.material_alphas.get_mut(material_index).ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic material index is out of bounds",
+            },
+        )?;
+        *alphas = [diffuse_alpha, overlay_alpha];
+        Ok(())
+    }
+
+    /// Changes the base directional and additive lighting coefficients of one
+    /// material while retaining its descriptor images and pipeline state.
+    pub fn set_material_lighting(
+        &mut self,
+        material_index: usize,
+        directional_rgb: [f32; 3],
+        additive_rgb: [f32; 3],
+    ) -> Result<(), VulkanSmokeRendererError> {
+        self.set_material_lighting_with_overlay(
+            material_index,
+            directional_rgb,
+            additive_rgb,
+            None,
+            None,
+        )
+    }
+
+    /// Changes base and optional overlay directional/additive coefficients
+    /// while retaining descriptor images and pipeline state.
+    pub fn set_material_lighting_with_overlay(
+        &mut self,
+        material_index: usize,
+        directional_rgb: [f32; 3],
+        additive_rgb: [f32; 3],
+        overlay_directional_rgb: Option<[f32; 3]>,
+        overlay_additive_rgb: Option<[f32; 3]>,
+    ) -> Result<(), VulkanSmokeRendererError> {
+        if directional_rgb
+            .into_iter()
+            .chain(additive_rgb)
+            .chain(overlay_directional_rgb.into_iter().flatten())
+            .chain(overlay_additive_rgb.into_iter().flatten())
+            .any(|value| !value.is_finite() || value < 0.0)
+        {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic material lighting must be finite and non-negative",
+            });
+        }
+        let lighting = self.material_lighting.get_mut(material_index).ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic material index is out of bounds",
+            },
+        )?;
+        lighting[0] = directional_rgb;
+        lighting[1] = additive_rgb;
+        lighting[2] = overlay_directional_rgb.unwrap_or([1.0; 3]);
+        lighting[3] = overlay_additive_rgb.unwrap_or([0.0; 3]);
+        Ok(())
+    }
+
+    /// Replaces the four Page transforms carried by one material's push
+    /// constants.  The transform order is base, detail, overlay, and overlay
+    /// detail, matching the material shader's texture bindings.
+    ///
+    /// The update is kept CPU-side and is consumed by the next recorded draw;
+    /// no descriptor or image resource is recreated.  This is intentionally a
+    /// complete replacement so an animated MAT0 phase cannot leave one stale
+    /// Page rectangle behind when its texture set is unchanged.
+    pub fn set_material_uv_transforms(
+        &mut self,
+        material_index: usize,
+        uv_transforms: [[f32; 4]; 4],
+    ) -> Result<(), VulkanSmokeRendererError> {
+        if uv_transforms
+            .into_iter()
+            .flatten()
+            .any(|value| !value.is_finite())
+        {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic material UV transform must be finite",
+            });
+        }
+        let transforms = self.material_uv_transforms.get_mut(material_index).ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic material index is out of bounds",
+            },
+        )?;
+        *transforms = uv_transforms;
+        Ok(())
+    }
+
+    /// Replaces the base and overlay specular records used by the vertex
+    /// Gouraud lighting path.  RGB values remain normalized; powers retain
+    /// the native MAT0 byte and are encoded as the fourth float in each GPU
+    /// record.
+    pub fn set_material_specular(
+        &mut self,
+        material_index: usize,
+        specular_rgb: [f32; 3],
+        power: u8,
+        overlay_specular_rgb: Option<[f32; 3]>,
+        overlay_power: Option<u8>,
+    ) -> Result<(), VulkanSmokeRendererError> {
+        if specular_rgb
+            .into_iter()
+            .chain(overlay_specular_rgb.into_iter().flatten())
+            .any(|value| !value.is_finite() || value < 0.0)
+        {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic material specular RGB must be finite and non-negative",
+            });
+        }
+        let specular = self.material_specular.get_mut(material_index).ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic material index is out of bounds",
+            },
+        )?;
+        let overlay_rgb = overlay_specular_rgb.unwrap_or([0.0; 3]);
+        let next = [
+            [
+                specular_rgb[0],
+                specular_rgb[1],
+                specular_rgb[2],
+                f32::from(power),
+            ],
+            [
+                overlay_rgb[0],
+                overlay_rgb[1],
+                overlay_rgb[2],
+                f32::from(overlay_power.unwrap_or(0)),
+            ],
+        ];
+        if *specular == next {
+            return Ok(());
+        }
+        *specular = next;
+        self.material_specular_dirty = true;
+        Ok(())
+    }
+
+    /// Rebinds one draw range to a positional material slot without
+    /// reallocating any vertex or descriptor resources.
+    pub fn set_draw_range_material(
+        &mut self,
+        range_index: usize,
+        material_index: usize,
+    ) -> Result<(), VulkanSmokeRendererError> {
+        let selector = *self.material_selectors.get(material_index).ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic material index is out of bounds",
+            },
+        )?;
+        let range = self.draw_ranges.get_mut(range_index).ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic draw range index is out of bounds",
+            },
+        )?;
+        range.material_index = selector;
+        let texture_index = self.draw_texture_indices.get_mut(range_index).ok_or(
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic draw range index is out of bounds",
+            },
+        )?;
+        *texture_index = material_index;
         Ok(())
     }
 
@@ -434,9 +1238,12 @@ impl VulkanSmokeRenderer {
             return Ok(VulkanSmokeFrameOutcome::Recreated);
         }
 
-        let sync = &self.frame_sync[self.current_frame];
+        let sync = self.frame_sync.get(self.current_frame).ok_or(
+            VulkanSmokeRendererError::InvariantViolation {
+                context: "frame synchronization state",
+            },
+        )?;
         let image_available = sync.image_available;
-        let render_finished = sync.render_finished;
         let in_flight_fence = sync.fence;
         // SAFETY: The fence belongs to this live logical device and is waited from one thread.
         unsafe {
@@ -448,6 +1255,27 @@ impl VulkanSmokeRenderer {
             context: "vkWaitForFences",
             result: error,
         })?;
+        if self.material_specular_dirty {
+            // The storage buffer is shared by all in-flight frames.  Wait for
+            // every prior use before replacing the records so a setter cannot
+            // race a vertex shader from the previous frame.
+            // SAFETY: The renderer owns the logical device and no submission
+            // can observe the host write after this idle point.
+            unsafe { self.device_ref()?.device().device_wait_idle() }.map_err(|result| {
+                VulkanSmokeRendererError::VulkanOperation {
+                    context: "vkDeviceWaitIdle(material specular update)",
+                    result,
+                }
+            })?;
+            let resources = self.resources_ref()?;
+            write_material_specular_buffer(
+                self.device_ref()?,
+                &resources.material_specular_buffer,
+                resources.material_specular_stride,
+                &self.material_specular,
+            )?;
+            self.material_specular_dirty = false;
+        }
         // SAFETY: The swapchain, semaphore and fence inputs are live for the duration of the acquire call.
         let acquire = unsafe {
             self.swapchain_ref()?.loader().acquire_next_image(
@@ -485,6 +1313,26 @@ impl VulkanSmokeRenderer {
             })?;
         }
         self.images_in_flight[image_index_usize] = in_flight_fence;
+        let frame_bytes = self.frame_uniforms.to_ne_bytes();
+        let resources = self.resources_ref()?;
+        write_frame_uniform(
+            self.device_ref()?,
+            &resources.frame_uniform_buffer,
+            resources.frame_uniform_stride,
+            self.current_frame,
+            &frame_bytes,
+        )?;
+        let render_finished = self
+            .resources_ref()?
+            .render_finished
+            .get(image_index_usize)
+            .copied()
+            .ok_or(VulkanSmokeRendererError::InvariantViolation {
+                context: "render-finished semaphore for swapchain image",
+            })?;
+        self.record_command_buffer(image_index_usize)?;
+        // Reset only after recording succeeds. A recording error leaves the
+        // signaled fence available for the next recovery attempt.
         // SAFETY: The fence belongs to this frame context and is not in use after the wait above.
         unsafe { self.device_ref()?.device().reset_fences(&[in_flight_fence]) }.map_err(
             |error| VulkanSmokeRendererError::VulkanOperation {
@@ -492,8 +1340,6 @@ impl VulkanSmokeRenderer {
                 result: error,
             },
         )?;
-
-        self.record_command_buffer(image_index_usize)?;
         let wait_semaphores = [image_available];
         let wait_stages = [vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT];
         let command_buffers = [self.resources_ref()?.command_buffers[image_index_usize]];
@@ -515,7 +1361,7 @@ impl VulkanSmokeRenderer {
             context: "vkQueueSubmit",
             result: error,
         })?;
-        if !self.resources_ref()?.readback_buffers.is_empty() {
+        if self.readback_enabled && !self.resources_ref()?.readback_buffers.is_empty() {
             self.report.readback_copy_count = self.report.readback_copy_count.saturating_add(1);
             self.last_readback_image_index = Some(image_index_usize);
         }
@@ -607,6 +1453,7 @@ impl VulkanSmokeRenderer {
                 self.vertex_buffer_ref()?,
                 self.index_buffer_ref()?,
                 self.textures_ref()?,
+                &self.texture_slot_indices,
                 &self.draw_ranges,
                 self.depth_request,
                 reuse_command_pool,
@@ -621,6 +1468,7 @@ impl VulkanSmokeRenderer {
         self.images_in_flight = vec![vk::Fence::null(); resources.image_views.len()];
         self.frame_sync = frame_sync;
         self.last_readback_image_index = None;
+        self.material_specular_dirty = true;
         self.report.swapchain_extent = swapchain_extent;
         self.report.swapchain_image_count = swapchain_image_count;
         self.report.swapchain_image_format = self.swapchain_ref()?.report.plan.format.format;
@@ -629,10 +1477,54 @@ impl VulkanSmokeRenderer {
         Ok(())
     }
 
+    /// Rebuilds only the swapchain-owned pipeline bundle after a structural
+    /// range-state change.  Draw-range setters can be called while a renderer
+    /// is live, so all prior submissions are completed before handles are
+    /// destroyed and recreated.
+    fn rebuild_pipeline_resources(&mut self) -> Result<(), VulkanSmokeRendererError> {
+        if self.swapchain_resources.is_none() {
+            return Ok(());
+        }
+        let device = self.device_ref()?;
+        // SAFETY: The renderer owns every submission on this device.  Waiting
+        // here makes the old pipelines, framebuffers, and command buffers
+        // quiescent before their destruction.
+        unsafe { device.device().device_wait_idle() }.map_err(|result| {
+            VulkanSmokeRendererError::VulkanOperation {
+                context: "vkDeviceWaitIdle(draw range pipeline update)",
+                result,
+            }
+        })?;
+        self.destroy_swapchain_resources();
+        self.rebuild_swapchain_resources(true)
+    }
+
+    /// Recomputes the stable command-recording order.  Only ranges explicitly
+    /// marked transparent are reordered, and they remain in the slots occupied
+    /// by that queue.  This preserves the caller's fixed sky/screen/weather
+    /// pass order while matching the native descending key comparator for the
+    /// world transparent queue.
+    fn rebuild_draw_order(&mut self) {
+        let range_count = self.draw_ranges.len();
+        if self.draw_order.len() != range_count {
+            self.draw_order = (0..range_count).collect();
+        }
+        self.draw_order = sorted_world_draw_order(
+            range_count,
+            &self.draw_ranges,
+            &self.draw_range_world_queue,
+            &self.draw_range_sort_keys,
+        );
+    }
+
     fn record_command_buffer(
         &mut self,
         image_index: usize,
     ) -> Result<(), VulkanSmokeRendererError> {
+        if self.draw_order_dirty {
+            self.rebuild_draw_order();
+            self.draw_order_dirty = false;
+        }
         let device = self.device_ref()?;
         let swapchain = self.swapchain_ref()?;
         let resources = self.resources_ref()?;
@@ -702,15 +1594,17 @@ impl VulkanSmokeRenderer {
                 0,
                 vk::IndexType::UINT32,
             );
-            let clip_from_world = matrix_bytes(self.camera.clip_from_world);
-            device.device().cmd_push_constants(
-                command_buffer,
-                resources.pipeline_layout,
-                vk::ShaderStageFlags::VERTEX,
-                0,
-                &clip_from_world,
-            );
-            for (range, &texture_index) in self.draw_ranges.iter().zip(&self.draw_texture_indices) {
+            for &range_index in &self.draw_order {
+                let range = self.draw_ranges.get(range_index).ok_or(
+                    VulkanSmokeRendererError::InvariantViolation {
+                        context: "stable draw order range handle",
+                    },
+                )?;
+                let texture_index = *self.draw_texture_indices.get(range_index).ok_or(
+                    VulkanSmokeRendererError::InvariantViolation {
+                        context: "stable draw texture range handle",
+                    },
+                )?;
                 let pipeline = resources.pipelines.get(&range.pipeline_key()).ok_or(
                     VulkanSmokeRendererError::InvariantViolation {
                         context: "static draw pipeline variant",
@@ -721,6 +1615,18 @@ impl VulkanSmokeRenderer {
                     vk::PipelineBindPoint::GRAPHICS,
                     *pipeline,
                 );
+                let frame_offset = u32::try_from(
+                    resources
+                        .frame_uniform_stride
+                        .saturating_mul(u64::try_from(self.current_frame).unwrap_or(u64::MAX)),
+                )
+                .unwrap_or(u32::MAX);
+                let material_offset = u32::try_from(
+                    resources
+                        .material_specular_stride
+                        .saturating_mul(u64::try_from(texture_index).unwrap_or(u64::MAX)),
+                )
+                .unwrap_or(u32::MAX);
                 let descriptor_set = resources.descriptor_sets.get(texture_index).ok_or(
                     VulkanSmokeRendererError::InvariantViolation {
                         context: "static material descriptor set",
@@ -732,16 +1638,80 @@ impl VulkanSmokeRenderer {
                     resources.pipeline_layout,
                     0,
                     std::slice::from_ref(descriptor_set),
-                    &[],
+                    &[frame_offset, material_offset],
                 );
                 let alpha_cutoff = range.alpha_test_cutoff().to_ne_bytes();
                 device.device().cmd_push_constants(
                     command_buffer,
                     resources.pipeline_layout,
-                    vk::ShaderStageFlags::FRAGMENT,
-                    64,
+                    vk::ShaderStageFlags::VERTEX | vk::ShaderStageFlags::FRAGMENT,
+                    0,
                     &alpha_cutoff,
                 );
+                let material_alpha = self.material_alphas.get(texture_index).ok_or(
+                    VulkanSmokeRendererError::InvariantViolation {
+                        context: "static material alpha",
+                    },
+                )?;
+                let material_alphas = [
+                    material_alpha[0].to_ne_bytes(),
+                    material_alpha[1].to_ne_bytes(),
+                ]
+                .concat();
+                device.device().cmd_push_constants(
+                    command_buffer,
+                    resources.pipeline_layout,
+                    vk::ShaderStageFlags::VERTEX | vk::ShaderStageFlags::FRAGMENT,
+                    4,
+                    &material_alphas,
+                );
+                let material_lighting = self.material_lighting.get(texture_index).ok_or(
+                    VulkanSmokeRendererError::InvariantViolation {
+                        context: "static material lighting",
+                    },
+                )?;
+                let material_lighting = material_lighting
+                    .iter()
+                    .flatten()
+                    .flat_map(|value| value.to_ne_bytes())
+                    .collect::<Vec<_>>();
+                device.device().cmd_push_constants(
+                    command_buffer,
+                    resources.pipeline_layout,
+                    vk::ShaderStageFlags::VERTEX | vk::ShaderStageFlags::FRAGMENT,
+                    12,
+                    &material_lighting,
+                );
+                let material_uv_transforms = self.material_uv_transforms.get(texture_index).ok_or(
+                    VulkanSmokeRendererError::InvariantViolation {
+                        context: "static material UV transforms",
+                    },
+                )?;
+                let material_uv_transforms = material_uv_transforms
+                    .iter()
+                    .flatten()
+                    .flat_map(|value| value.to_ne_bytes())
+                    .collect::<Vec<_>>();
+                device.device().cmd_push_constants(
+                    command_buffer,
+                    resources.pipeline_layout,
+                    vk::ShaderStageFlags::VERTEX | vk::ShaderStageFlags::FRAGMENT,
+                    60,
+                    &material_uv_transforms,
+                );
+                let unlit = self.material_unlit.get(texture_index).ok_or(
+                    VulkanSmokeRendererError::InvariantViolation {
+                        context: "static material unlit flag",
+                    },
+                )?;
+                let unlit = [unlit.to_ne_bytes()];
+                device.device().cmd_push_constants(
+                    command_buffer,
+                    resources.pipeline_layout,
+                    vk::ShaderStageFlags::VERTEX | vk::ShaderStageFlags::FRAGMENT,
+                    124,
+                    &unlit.concat(),
+                );
                 device.device().cmd_draw_indexed(
                     command_buffer,
                     range.index_count,
@@ -752,63 +1722,65 @@ impl VulkanSmokeRenderer {
                 );
             }
             device.device().cmd_end_render_pass(command_buffer);
-            if let (Some(image), Some(readback)) = (
-                resources.images.get(image_index),
-                resources.readback_buffers.get(image_index),
-            ) {
-                let range = super::color_subresource_range();
-                let to_transfer = vk::ImageMemoryBarrier::default()
-                    .old_layout(vk::ImageLayout::PRESENT_SRC_KHR)
-                    .new_layout(vk::ImageLayout::TRANSFER_SRC_OPTIMAL)
-                    .src_access_mask(vk::AccessFlags::COLOR_ATTACHMENT_WRITE)
-                    .dst_access_mask(vk::AccessFlags::TRANSFER_READ)
-                    .image(*image)
-                    .subresource_range(range);
-                let back_to_present = vk::ImageMemoryBarrier::default()
-                    .old_layout(vk::ImageLayout::TRANSFER_SRC_OPTIMAL)
-                    .new_layout(vk::ImageLayout::PRESENT_SRC_KHR)
-                    .src_access_mask(vk::AccessFlags::TRANSFER_READ)
-                    .dst_access_mask(vk::AccessFlags::empty())
-                    .image(*image)
-                    .subresource_range(range);
-                let region = vk::BufferImageCopy::default()
-                    .image_subresource(
-                        vk::ImageSubresourceLayers::default()
-                            .aspect_mask(vk::ImageAspectFlags::COLOR)
-                            .mip_level(0)
-                            .base_array_layer(0)
-                            .layer_count(1),
-                    )
-                    .image_extent(vk::Extent3D {
-                        width: swapchain.report.plan.extent.0,
-                        height: swapchain.report.plan.extent.1,
-                        depth: 1,
-                    });
-                device.device().cmd_pipeline_barrier(
-                    command_buffer,
-                    vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT,
-                    vk::PipelineStageFlags::TRANSFER,
-                    vk::DependencyFlags::empty(),
-                    &[],
-                    &[],
-                    &[to_transfer],
-                );
-                device.device().cmd_copy_image_to_buffer(
-                    command_buffer,
-                    *image,
-                    vk::ImageLayout::TRANSFER_SRC_OPTIMAL,
-                    readback.buffer,
-                    &[region],
-                );
-                device.device().cmd_pipeline_barrier(
-                    command_buffer,
-                    vk::PipelineStageFlags::TRANSFER,
-                    vk::PipelineStageFlags::BOTTOM_OF_PIPE,
-                    vk::DependencyFlags::empty(),
-                    &[],
-                    &[],
-                    &[back_to_present],
-                );
+            if self.readback_enabled {
+                if let (Some(image), Some(readback)) = (
+                    resources.images.get(image_index),
+                    resources.readback_buffers.get(image_index),
+                ) {
+                    let range = super::color_subresource_range(1);
+                    let to_transfer = vk::ImageMemoryBarrier::default()
+                        .old_layout(vk::ImageLayout::PRESENT_SRC_KHR)
+                        .new_layout(vk::ImageLayout::TRANSFER_SRC_OPTIMAL)
+                        .src_access_mask(vk::AccessFlags::COLOR_ATTACHMENT_WRITE)
+                        .dst_access_mask(vk::AccessFlags::TRANSFER_READ)
+                        .image(*image)
+                        .subresource_range(range);
+                    let back_to_present = vk::ImageMemoryBarrier::default()
+                        .old_layout(vk::ImageLayout::TRANSFER_SRC_OPTIMAL)
+                        .new_layout(vk::ImageLayout::PRESENT_SRC_KHR)
+                        .src_access_mask(vk::AccessFlags::TRANSFER_READ)
+                        .dst_access_mask(vk::AccessFlags::empty())
+                        .image(*image)
+                        .subresource_range(range);
+                    let region = vk::BufferImageCopy::default()
+                        .image_subresource(
+                            vk::ImageSubresourceLayers::default()
+                                .aspect_mask(vk::ImageAspectFlags::COLOR)
+                                .mip_level(0)
+                                .base_array_layer(0)
+                                .layer_count(1),
+                        )
+                        .image_extent(vk::Extent3D {
+                            width: swapchain.report.plan.extent.0,
+                            height: swapchain.report.plan.extent.1,
+                            depth: 1,
+                        });
+                    device.device().cmd_pipeline_barrier(
+                        command_buffer,
+                        vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT,
+                        vk::PipelineStageFlags::TRANSFER,
+                        vk::DependencyFlags::empty(),
+                        &[],
+                        &[],
+                        &[to_transfer],
+                    );
+                    device.device().cmd_copy_image_to_buffer(
+                        command_buffer,
+                        *image,
+                        vk::ImageLayout::TRANSFER_SRC_OPTIMAL,
+                        readback.buffer,
+                        &[region],
+                    );
+                    device.device().cmd_pipeline_barrier(
+                        command_buffer,
+                        vk::PipelineStageFlags::TRANSFER,
+                        vk::PipelineStageFlags::BOTTOM_OF_PIPE,
+                        vk::DependencyFlags::empty(),
+                        &[],
+                        &[],
+                        &[back_to_present],
+                    );
+                }
             }
         }
 
@@ -832,9 +1804,6 @@ impl VulkanSmokeRenderer {
                 device
                     .device()
                     .destroy_semaphore(sync.image_available, None);
-                device
-                    .device()
-                    .destroy_semaphore(sync.render_finished, None);
                 device.device().destroy_fence(sync.fence, None);
             }
         }
@@ -937,7 +1906,7 @@ impl VulkanSmokeRenderer {
             .ok_or(VulkanSmokeRendererError::InvalidStaticMesh {
                 context: "completed readback byte length",
             })?;
-        if resources.readback_buffers.is_empty() {
+        if !self.readback_enabled || resources.readback_buffers.is_empty() {
             return Ok(None);
         }
         let Some(image_index) = completed_readback_buffer_index(
@@ -986,14 +1955,6 @@ fn completed_readback_buffer_index(
     }
 }
 
-fn matrix_bytes(matrix: [f32; 16]) -> [u8; 64] {
-    let mut bytes = [0; 64];
-    for (index, value) in matrix.into_iter().enumerate() {
-        bytes[index * 4..(index + 1) * 4].copy_from_slice(&value.to_ne_bytes());
-    }
-    bytes
-}
-
 fn fnv1a64(bytes: &[u8]) -> u64 {
     bytes.iter().fold(0xcbf2_9ce4_8422_2325_u64, |hash, byte| {
         (hash ^ u64::from(*byte)).wrapping_mul(0x0000_0100_0000_01b3)
@@ -1006,12 +1967,242 @@ impl Drop for VulkanSmokeRenderer {
     }
 }
 
+fn validate_geometry_upload(
+    vertices: &[super::VulkanStaticVertex],
+    indices: &[u32],
+    current_ranges: &[super::VulkanStaticDrawRange],
+    geometry_ranges: &[super::VulkanDynamicDrawRange],
+    retained_vertex_capacity: usize,
+    retained_index_capacity: usize,
+) -> Result<(), VulkanSmokeRendererError> {
+    if vertices.is_empty() || indices.is_empty() {
+        return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "dynamic mesh upload cannot have zero-sized geometry",
+        });
+    }
+    if !indices.len().is_multiple_of(3) {
+        return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "dynamic mesh index upload is not a triangle list",
+        });
+    }
+    if vertices.iter().any(|vertex| {
+        !vertex
+            .position
+            .iter()
+            .chain(vertex.color.iter())
+            .chain(vertex.normal.iter())
+            .chain(vertex.uv.iter())
+            .chain(vertex.detail_uv.iter())
+            .chain(std::iter::once(&vertex.overlay_alpha))
+            .all(|value| value.is_finite())
+            || !(0.0..=1.0).contains(&vertex.overlay_alpha)
+    }) {
+        return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "dynamic mesh vertex attributes must be finite and overlay alpha must be 0..1",
+        });
+    }
+    if indices.iter().any(|&index| {
+        usize::try_from(index)
+            .ok()
+            .is_none_or(|index| index >= vertices.len())
+    }) {
+        return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+            context: "dynamic mesh index exceeds vertex count",
+        });
+    }
+    if retained_vertex_capacity == 0 || retained_index_capacity == 0 {
+        return Err(VulkanSmokeRendererError::InvariantViolation {
+            context: "dynamic mesh retained allocation is empty",
+        });
+    }
+
+    let mut next_ranges = current_ranges.to_vec();
+    let mut changed = vec![false; current_ranges.len()];
+    for geometry in geometry_ranges {
+        if geometry.range_index >= current_ranges.len() {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic mesh range index is out of bounds",
+            });
+        }
+        if changed[geometry.range_index] {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic mesh range is updated more than once",
+            });
+        }
+        changed[geometry.range_index] = true;
+        if geometry.first_index % 3 != 0 || geometry.index_count % 3 != 0 {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic mesh range is not triangle aligned",
+            });
+        }
+        let first = usize::try_from(geometry.first_index).map_err(|_| {
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic mesh range first index exceeds address space",
+            }
+        })?;
+        let count = usize::try_from(geometry.index_count).map_err(|_| {
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic mesh range index count exceeds address space",
+            }
+        })?;
+        let end = first
+            .checked_add(count)
+            .ok_or(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic mesh range exceeds address space",
+            })?;
+        if end > indices.len() {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "dynamic mesh range exceeds uploaded indices",
+            });
+        }
+        next_ranges[geometry.range_index].first_index = geometry.first_index;
+        next_ranges[geometry.range_index].index_count = geometry.index_count;
+    }
+
+    for range in next_ranges {
+        if range.first_index % 3 != 0 || range.index_count % 3 != 0 {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "retained dynamic mesh range is not triangle aligned",
+            });
+        }
+        let first = usize::try_from(range.first_index).map_err(|_| {
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "retained dynamic mesh range first index exceeds address space",
+            }
+        })?;
+        let count = usize::try_from(range.index_count).map_err(|_| {
+            VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "retained dynamic mesh range index count exceeds address space",
+            }
+        })?;
+        let end = first
+            .checked_add(count)
+            .ok_or(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "retained dynamic mesh range exceeds address space",
+            })?;
+        if end > indices.len() {
+            return Err(VulkanSmokeRendererError::InvalidStaticMesh {
+                context: "retained dynamic mesh range exceeds uploaded indices",
+            });
+        }
+    }
+    Ok(())
+}
+
+fn apply_geometry_range_updates(
+    ranges: &mut [super::VulkanStaticDrawRange],
+    capacities: &mut [u32],
+    geometry_ranges: &[super::VulkanDynamicDrawRange],
+) {
+    for geometry in geometry_ranges {
+        // `validate_geometry_upload` has already checked every handle. Keep
+        // this helper infallible so state is changed only after the Vulkan
+        // upload succeeds.
+        let range = &mut ranges[geometry.range_index];
+        range.first_index = geometry.first_index;
+        range.index_count = geometry.index_count;
+        // A moved segment no longer owns the old tail. Keeping the previous
+        // range capacity would let a later count setter read indices from a
+        // different segment. The shared GPU allocation itself remains
+        // retained; this is the logical capacity of this range's segment.
+        capacities[geometry.range_index] = geometry.index_count;
+    }
+}
+
+/// Replays the native queue construction from the original stable range
+/// order. Fixed passes stay in their original slots; world opaque ranges are
+/// emitted first, followed by world transparent ranges inserted by descending
+/// camera distance. Zero-index-count ranges are inactive and are omitted.
+fn sorted_world_draw_order(
+    range_count: usize,
+    ranges: &[super::VulkanStaticDrawRange],
+    world_queue: &[Option<bool>],
+    keys: &[Option<f32>],
+) -> Vec<usize> {
+    let mut next = (0..range_count).collect::<Vec<_>>();
+    let mut world_opaque = Vec::new();
+    let mut world_transparent = Vec::new();
+    for range_index in 0..range_count {
+        if ranges
+            .get(range_index)
+            .is_none_or(|range| range.index_count == 0)
+        {
+            continue;
+        }
+        match world_queue.get(range_index).copied().flatten() {
+            Some(false) => world_opaque.push(range_index),
+            Some(true) => world_transparent.push(range_index),
+            None => {}
+        }
+    }
+
+    // Native equal-key insertion is a midpoint insertion rather than a
+    // documented stable sort. Replay that insertion shape from original range
+    // order instead of repeatedly sorting the previous frame's order.
+    let mut ordered_transparent = Vec::with_capacity(world_transparent.len());
+    for range_index in world_transparent {
+        let new_key = keys.get(range_index).and_then(|key| *key);
+        let mut low = 0usize;
+        let mut high = ordered_transparent.len().saturating_sub(1);
+        while high > low {
+            let middle = low + (high - low) / 2;
+            let existing_key = keys.get(ordered_transparent[middle]).and_then(|key| *key);
+            match (new_key, existing_key) {
+                (Some(new_key), Some(existing_key)) if new_key > existing_key => high = middle,
+                (Some(new_key), Some(existing_key)) if new_key < existing_key => low = middle + 1,
+                (Some(_), Some(_)) => {
+                    low = middle;
+                    break;
+                }
+                (Some(_), None) => high = middle,
+                (None, Some(_)) => low = middle + 1,
+                (None, None) => {
+                    low = middle;
+                    break;
+                }
+            }
+        }
+        if !ordered_transparent.is_empty() && high == low {
+            let existing_key = keys.get(ordered_transparent[low]).and_then(|key| *key);
+            let insert_after = match (new_key, existing_key) {
+                (Some(new_key), Some(existing_key)) => new_key < existing_key,
+                (None, Some(_)) => true,
+                _ => false,
+            };
+            if insert_after {
+                low += 1;
+            }
+        }
+        ordered_transparent.insert(low, range_index);
+    }
+
+    let mut world_order = world_opaque;
+    world_order.extend(ordered_transparent);
+    let mut world_cursor = 0usize;
+    for slot in &mut next {
+        if world_queue.get(*slot).copied().flatten().is_some()
+            && ranges
+                .get(*slot)
+                .is_some_and(|range| range.index_count != 0)
+        {
+            if let Some(&replacement) = world_order.get(world_cursor) {
+                *slot = replacement;
+                world_cursor += 1;
+            }
+        }
+    }
+    next
+}
+
 #[cfg(test)]
 mod tests {
+    use super::super::{VulkanDynamicDrawRange, VulkanStaticDrawRange, VulkanStaticMesh};
     use super::{
-        completed_readback_buffer_index, take_runtime_children_with_validation_snapshot,
-        take_runtime_owners_in_dependency_order, RollbackOnDrop,
+        apply_geometry_range_updates, completed_readback_buffer_index, sorted_world_draw_order,
+        take_runtime_children_with_validation_snapshot, take_runtime_owners_in_dependency_order,
+        validate_geometry_upload, RollbackOnDrop,
     };
+    use fparkan_render::{LegacyBlendMode, LegacyDepthMode, LegacyPipelineState};
     use std::cell::RefCell;
     use std::rc::Rc;
 
@@ -1101,6 +2292,84 @@ mod tests {
     }
 
     #[test]
+    fn geometry_updates_preserve_other_range_runtime_state() {
+        let base_state = LegacyPipelineState {
+            blend: LegacyBlendMode::SourceAlpha,
+            depth: LegacyDepthMode::TestReadOnly,
+            ..LegacyPipelineState::default()
+        };
+        let mut ranges = vec![
+            VulkanStaticDrawRange {
+                first_index: 0,
+                index_count: 3,
+                material_index: 7,
+                lightmap_index: 4,
+                batch_flags: 0x108,
+                pipeline_state: base_state,
+                alpha_test_reference: 17,
+            },
+            VulkanStaticDrawRange {
+                first_index: 3,
+                index_count: 3,
+                material_index: 9,
+                lightmap_index: u8::MAX,
+                batch_flags: 0,
+                pipeline_state: LegacyPipelineState::default(),
+                alpha_test_reference: 0,
+            },
+        ];
+        let original = ranges[0];
+        let mut capacities = vec![3, 3];
+        apply_geometry_range_updates(
+            &mut ranges,
+            &mut capacities,
+            &[VulkanDynamicDrawRange {
+                range_index: 1,
+                first_index: 3,
+                index_count: 9,
+            }],
+        );
+        assert_eq!(ranges[0], original);
+        assert_eq!(capacities, vec![3, 9]);
+        assert_eq!(ranges[1].first_index, 3);
+        assert_eq!(ranges[1].index_count, 9);
+
+        apply_geometry_range_updates(
+            &mut ranges,
+            &mut capacities,
+            &[VulkanDynamicDrawRange {
+                range_index: 1,
+                first_index: 3,
+                index_count: 3,
+            }],
+        );
+        assert_eq!(ranges[0], original);
+        assert_eq!(capacities, vec![3, 3]);
+        assert_eq!(ranges[1].index_count, 3);
+    }
+
+    #[test]
+    fn geometry_update_can_disable_empty_shadow_range_without_zero_sized_upload() {
+        let mesh = VulkanStaticMesh::smoke_triangle();
+        let geometry = [VulkanDynamicDrawRange {
+            range_index: 0,
+            first_index: 3,
+            index_count: 0,
+        }];
+        assert_eq!(
+            validate_geometry_upload(
+                &mesh.vertices,
+                &mesh.indices,
+                &mesh.draw_ranges,
+                &geometry,
+                3,
+                3,
+            ),
+            Ok(())
+        );
+    }
+
+    #[test]
     fn runtime_owners_drop_remaining_children_after_partial_init_failures() {
         let cases = [
             (vec![TeardownStep::Instance], vec![TeardownStep::Instance]),
@@ -1218,4 +2487,83 @@ mod tests {
 
         assert_eq!(log.borrow().as_slice(), &[TeardownStep::Swapchain]);
     }
+
+    #[test]
+    fn native_transparent_order_is_descending_and_keeps_fixed_pass_slots() {
+        let ranges = (0..5)
+            .map(|_| super::super::VulkanStaticDrawRange {
+                first_index: 0,
+                index_count: 3,
+                material_index: 0,
+                lightmap_index: u8::MAX,
+                batch_flags: 0,
+                pipeline_state: fparkan_render::LegacyPipelineState::default(),
+                alpha_test_reference: 0,
+            })
+            .collect::<Vec<_>>();
+        let order = sorted_world_draw_order(
+            5,
+            &ranges,
+            &[None, Some(true), None, Some(true), Some(false)],
+            &[None, Some(2.0), None, Some(9.0), Some(-3.0)],
+        );
+        assert_eq!(order, vec![0, 4, 2, 3, 1]);
+    }
+
+    #[test]
+    fn inactive_world_range_is_not_reused_as_a_sort_slot() {
+        let ranges = vec![
+            super::super::VulkanStaticDrawRange {
+                first_index: 0,
+                index_count: 3,
+                material_index: 0,
+                lightmap_index: u8::MAX,
+                batch_flags: 0,
+                pipeline_state: fparkan_render::LegacyPipelineState::default(),
+                alpha_test_reference: 0,
+            },
+            super::super::VulkanStaticDrawRange {
+                first_index: 3,
+                index_count: 0,
+                material_index: 0,
+                lightmap_index: u8::MAX,
+                batch_flags: 0,
+                pipeline_state: fparkan_render::LegacyPipelineState::default(),
+                alpha_test_reference: 0,
+            },
+            super::super::VulkanStaticDrawRange {
+                first_index: 3,
+                index_count: 3,
+                material_index: 0,
+                lightmap_index: u8::MAX,
+                batch_flags: 0,
+                pipeline_state: fparkan_render::LegacyPipelineState::default(),
+                alpha_test_reference: 0,
+            },
+        ];
+        let order = sorted_world_draw_order(
+            3,
+            &ranges,
+            &[None, Some(true), Some(true)],
+            &[None, Some(100.0), Some(1.0)],
+        );
+        assert_eq!(order, vec![0, 1, 2]);
+    }
+
+    #[test]
+    fn native_equal_key_insertion_uses_inclusive_midpoint() {
+        let ranges = (0..4)
+            .map(|index| super::super::VulkanStaticDrawRange {
+                first_index: index * 3,
+                index_count: 3,
+                material_index: 0,
+                lightmap_index: u8::MAX,
+                batch_flags: 0,
+                pipeline_state: fparkan_render::LegacyPipelineState::default(),
+                alpha_test_reference: 0,
+            })
+            .collect::<Vec<_>>();
+        let order = sorted_world_draw_order(4, &ranges, &[Some(true); 4], &[Some(1.0); 4]);
+        assert_eq!(order, vec![2, 3, 1, 0]);
+    }
 }
diff --git a/adapters/fparkan-render-vulkan/src/ffi/smoke_types.rs b/adapters/fparkan-render-vulkan/src/ffi/smoke_types.rs
index 217df3f..75877ad 100644
--- a/adapters/fparkan-render-vulkan/src/ffi/smoke_types.rs
+++ b/adapters/fparkan-render-vulkan/src/ffi/smoke_types.rs
@@ -48,8 +48,20 @@ pub struct VulkanStaticVertex {
     pub position: [f32; 3],
     /// Linear RGB vertex color.
     pub color: [f32; 3],
+    /// Unit vertex normal in world/object coordinates.
+    pub normal: [f32; 3],
     /// Texture coordinate consumed by the static material bridge.
     pub uv: [f32; 2],
+    /// Repeating detail texture coordinate from terrain type-18 UV data.
+    ///
+    /// Non-terrain geometry supplies `[0.0; 2]`; its neutral detail texture
+    /// keeps the additional stage mathematically transparent.
+    pub detail_uv: [f32; 2],
+    /// Interpolated terrain overlay mask from type-14 data.
+    ///
+    /// Non-terrain geometry supplies `0.0`, disabling the transparent overlay
+    /// slot while retaining one vertex contract for every static draw.
+    pub overlay_alpha: f32,
 }
 
 /// A static geometry camera represented in the shader's matrix memory order.
@@ -71,7 +83,9 @@ impl VulkanStaticCamera {
         projection: LegacyD3d7Projection,
     ) -> Option<Self> {
         let view = transform.try_direct3d7_view_row_major()?;
-        let projection = projection.try_direct3d7_projection_row_major()?;
+        let mut projection = projection.try_direct3d7_projection_row_major()?;
+        // D3D7's top-down viewport and Vulkan's positive-height viewport invert NDC Y.
+        projection[5] = -projection[5];
         Self::from_row_major_view_projection(view, projection)
     }
 
@@ -108,6 +122,242 @@ impl Default for VulkanStaticCamera {
     }
 }
 
+/// Number of directional records carried by [`VulkanFrameUniforms`].
+pub const VULKAN_DIRECTIONAL_LIGHT_COUNT: usize = 4;
+
+/// One directional light in the frame lighting contract.
+///
+/// The direction is the vector from the light toward the surface.  The
+/// coefficients are retained in the same three-component record as the
+/// native point callback so frame construction can copy the original light
+/// table without a lossy conversion.
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub struct VulkanDirectionalLight {
+    /// Direction from the light toward the surface.
+    pub direction: [f32; 3],
+    /// Light RGB multiplier.
+    pub rgb: [f32; 3],
+    /// Native light coefficients.  Directional callbacks normally use the
+    /// neutral `[0, 0, 1]` record; the field keeps the shared light ABI.
+    pub coefficients: [f32; 3],
+    /// Whether the light participates in this frame.
+    pub active: bool,
+}
+
+impl Default for VulkanDirectionalLight {
+    fn default() -> Self {
+        Self {
+            direction: [0.0, 0.0, 1.0],
+            rgb: [0.0; 3],
+            coefficients: [0.0, 0.0, 1.0],
+            active: false,
+        }
+    }
+}
+
+/// One point light in the frame lighting contract.
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub struct VulkanPointLight {
+    /// World-space position.
+    pub position: [f32; 3],
+    /// Light RGB multiplier.
+    pub rgb: [f32; 3],
+    /// Radius used by native normalized distance attenuation.
+    pub range: f32,
+    /// Native attenuation coefficients `a0`, `a1`, and `a2`.
+    pub coefficients: [f32; 3],
+    /// Whether the light participates in this frame.
+    pub active: bool,
+}
+
+impl Default for VulkanPointLight {
+    fn default() -> Self {
+        Self {
+            position: [0.0; 3],
+            rgb: [0.0; 3],
+            range: 0.0,
+            // A neutral record is explicit.  In particular, this is the
+            // proven native environment contract and avoids an accidental
+            // zero polynomial when a caller enables the point slot.
+            coefficients: [0.0, 0.0, 1.0],
+            active: false,
+        }
+    }
+}
+
+/// Number of bytes occupied by one frame-uniform slot.
+///
+/// The block is deliberately made entirely from `mat4`/`vec4`-sized records
+/// so its CPU representation follows Vulkan's `std140` alignment rules on
+/// every device.  Four directional lights and one point light fit in a small
+/// dynamic UBO while the push-constant range remains available for material
+/// state.
+pub const VULKAN_FRAME_UNIFORM_BYTES: usize = 368;
+
+/// Bytes occupied by one material's base and overlay specular records.
+///
+/// Each record is one `vec4`: RGB followed by the native integer power stored
+/// as an IEEE-754 float for direct shader use.  The allocation stride is
+/// rounded up to the device's `minStorageBufferOffsetAlignment`.
+pub const VULKAN_MATERIAL_SPECULAR_RECORD_BYTES: usize = 2 * 4 * std::mem::size_of::<f32>();
+
+/// Per-frame data shared by the vertex and fragment stages.
+///
+/// `clip_from_world` is row-major D3D-style storage for the same reason as
+/// [`VulkanStaticCamera`].  A directional light direction points from the
+/// light toward the surface; the shader negates it when taking the
+/// surface-normal dot product.  Fog distances are disabled when
+/// `fog_end <= fog_start`.
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub struct VulkanFrameUniforms {
+    /// Row-major clip-from-world transform.
+    pub clip_from_world: [f32; 16],
+    /// Up to four native directional/celestial lights.
+    pub directional_lights: [VulkanDirectionalLight; VULKAN_DIRECTIONAL_LIGHT_COUNT],
+    /// Native point light slot.
+    pub point_light: VulkanPointLight,
+    /// Per-channel lighting floor applied before native range compression.
+    pub lighting_floor: [f32; 3],
+    /// Linear fog RGB color.
+    pub fog_color: [f32; 3],
+    /// Fog start distance.
+    pub fog_start: f32,
+    /// Fog end distance.
+    pub fog_end: f32,
+    /// World-space camera position used for fog distance.
+    pub camera_position: [f32; 3],
+}
+
+impl VulkanFrameUniforms {
+    /// Builds neutral frame state from a static camera.
+    #[must_use]
+    pub fn from_camera(camera: VulkanStaticCamera) -> Self {
+        let mut directional_lights =
+            [VulkanDirectionalLight::default(); VULKAN_DIRECTIONAL_LIGHT_COUNT];
+        directional_lights[0] = VulkanDirectionalLight {
+            direction: [0.35, 0.45, 0.82],
+            rgb: [1.0; 3],
+            coefficients: [0.0, 0.0, 1.0],
+            active: true,
+        };
+        Self {
+            clip_from_world: camera.clip_from_world,
+            directional_lights,
+            point_light: VulkanPointLight::default(),
+            lighting_floor: [0.30; 3],
+            fog_color: [0.0; 3],
+            fog_start: f32::MAX,
+            fog_end: f32::MAX,
+            camera_position: [0.0; 3],
+        }
+    }
+
+    /// Returns whether all submitted frame values are finite.
+    #[must_use]
+    pub fn is_finite(self) -> bool {
+        self.clip_from_world
+            .into_iter()
+            .chain(self.directional_lights.into_iter().flat_map(|light| {
+                light
+                    .direction
+                    .into_iter()
+                    .chain(light.rgb)
+                    .chain(light.coefficients)
+                    .chain([if light.active { 1.0 } else { 0.0 }])
+            }))
+            .chain(self.point_light.position)
+            .chain(self.point_light.rgb)
+            .chain([self.point_light.range])
+            .chain(self.point_light.coefficients)
+            .chain([if self.point_light.active { 1.0 } else { 0.0 }])
+            .chain(self.lighting_floor)
+            .chain(self.fog_color)
+            .chain([self.fog_start, self.fog_end])
+            .chain(self.camera_position)
+            .all(f32::is_finite)
+    }
+
+    /// Serializes one frame slot in the exact `std140` member order.
+    #[must_use]
+    pub fn to_ne_bytes(self) -> [u8; VULKAN_FRAME_UNIFORM_BYTES] {
+        let mut values = [0.0_f32; VULKAN_FRAME_UNIFORM_BYTES / 4];
+        values[..16].copy_from_slice(&self.clip_from_world);
+        for (index, light) in self.directional_lights.into_iter().enumerate() {
+            let direction_offset = 16 + index * 4;
+            values[direction_offset..direction_offset + 4].copy_from_slice(&[
+                light.direction[0],
+                light.direction[1],
+                light.direction[2],
+                if light.active { 1.0 } else { 0.0 },
+            ]);
+            let rgb_offset = 32 + index * 4;
+            values[rgb_offset..rgb_offset + 4].copy_from_slice(&[
+                light.rgb[0],
+                light.rgb[1],
+                light.rgb[2],
+                if light.active { 1.0 } else { 0.0 },
+            ]);
+            let coefficient_offset = 48 + index * 4;
+            values[coefficient_offset..coefficient_offset + 4].copy_from_slice(&[
+                light.coefficients[0],
+                light.coefficients[1],
+                light.coefficients[2],
+                if light.active { 1.0 } else { 0.0 },
+            ]);
+        }
+        values[64..68].copy_from_slice(&[
+            self.point_light.position[0],
+            self.point_light.position[1],
+            self.point_light.position[2],
+            self.point_light.range,
+        ]);
+        values[68..72].copy_from_slice(&[
+            self.point_light.rgb[0],
+            self.point_light.rgb[1],
+            self.point_light.rgb[2],
+            if self.point_light.active { 1.0 } else { 0.0 },
+        ]);
+        values[72..76].copy_from_slice(&[
+            self.point_light.coefficients[0],
+            self.point_light.coefficients[1],
+            self.point_light.coefficients[2],
+            if self.point_light.active { 1.0 } else { 0.0 },
+        ]);
+        values[76..80].copy_from_slice(&[
+            self.lighting_floor[0],
+            self.lighting_floor[1],
+            self.lighting_floor[2],
+            0.0,
+        ]);
+        values[80..84].copy_from_slice(&[
+            self.fog_color[0],
+            self.fog_color[1],
+            self.fog_color[2],
+            0.0,
+        ]);
+        values[84..88].copy_from_slice(&[self.fog_start, self.fog_end, 0.0, 0.0]);
+        values[88..92].copy_from_slice(&[
+            self.camera_position[0],
+            self.camera_position[1],
+            self.camera_position[2],
+            0.0,
+        ]);
+        let mut bytes = [0_u8; VULKAN_FRAME_UNIFORM_BYTES];
+        for (index, value) in values.into_iter().enumerate() {
+            let offset = index * std::mem::size_of::<f32>();
+            bytes[offset..offset + std::mem::size_of::<f32>()]
+                .copy_from_slice(&value.to_ne_bytes());
+        }
+        bytes
+    }
+}
+
+impl Default for VulkanFrameUniforms {
+    fn default() -> Self {
+        Self::from_camera(VulkanStaticCamera::default())
+    }
+}
+
 fn multiply_row_major(left: [f32; 16], right: [f32; 16]) -> [f32; 16] {
     let mut result = [0.0; 16];
     for row in 0..4 {
@@ -131,6 +381,23 @@ pub struct VulkanStaticMesh {
     pub draw_ranges: Vec<VulkanStaticDrawRange>,
 }
 
+/// Geometry-only changes applied to one retained draw range.
+///
+/// The renderer owns the material, blend/depth state, active count changes,
+/// and queue classification for every range.  A frame builder uses this
+/// record only when a variable-size geometry stream (such as projected
+/// shadows) moves its index segment or changes its triangle count.
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub struct VulkanDynamicDrawRange {
+    /// Stable draw-range handle returned by the initial mesh layout.
+    pub range_index: usize,
+    /// First index in the current shared index upload.
+    pub first_index: u32,
+    /// Active triangle-list index count. Zero disables this range for the
+    /// current frame without allocating a zero-sized Vulkan buffer.
+    pub index_count: u32,
+}
+
 /// One indexed triangle-list draw retained from an original mesh batch.
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub struct VulkanStaticDrawRange {
@@ -140,6 +407,12 @@ pub struct VulkanStaticDrawRange {
     pub index_count: u32,
     /// Original positional `Batch20.material_index` selector.
     pub material_index: u16,
+    /// Original positional `Batch20.lightmap_index` selector.
+    pub lightmap_index: u8,
+    /// Original MSH Batch20 flag word used by the native transparent queue.
+    /// Bits `0x100` and `0x008` opt a range into that queue independently of
+    /// the material blend category.
+    pub batch_flags: u16,
     /// Backend-neutral fixed-function state for this source range.
     pub pipeline_state: LegacyPipelineState,
     /// Alpha-test reference in legacy 0..=255 units; dynamic material data.
@@ -147,6 +420,13 @@ pub struct VulkanStaticDrawRange {
 }
 
 impl VulkanStaticDrawRange {
+    /// The value installed by the native renderer before a material-specific
+    /// alpha reference is written.  The native Ngi32 initialiser stores one
+    /// in `D3DRS_ALPHAREF`; callers that do not have a material-specific value
+    /// should pass this constant explicitly.  Zero remains a valid explicit
+    /// alpha reference.
+    pub const NATIVE_DEFAULT_ALPHA_TEST_REFERENCE: u8 = 1;
+
     /// Returns the canonical key used for Vulkan pipeline selection.
     #[must_use]
     pub fn pipeline_key(self) -> PipelineKey {
@@ -165,12 +445,75 @@ impl VulkanStaticDrawRange {
 }
 
 /// One diffuse material texture keyed by an original MSH batch selector.
-#[derive(Clone, Debug, Eq, PartialEq)]
+#[derive(Clone, Debug, PartialEq)]
 pub struct VulkanStaticMaterial {
     /// Positional material selector used by one or more source batches.
     pub material_index: u16,
     /// Decoded RGBA8 diffuse texture for this selector.
     pub texture: VulkanStaticTexture,
+    /// Phase parameters 4..6, normalized directional light RGB coefficient.
+    pub directional_rgb: [f32; 3],
+    /// Phase parameters 0..2, normalized additive RGB coefficient.
+    pub additive_rgb: [f32; 3],
+    /// Normalized atlas transform for base texture `[x, y, w, h]`.
+    pub uv_transform: [f32; 4],
+    /// Optional Land2 detail texture paired with the base texture.
+    pub detail_texture: Option<VulkanStaticTexture>,
+    /// Optional Land1 overlay texture selected by the face tag high byte.
+    pub overlay_texture: Option<VulkanStaticTexture>,
+    /// Optional Land2 detail texture paired with the overlay texture.
+    pub overlay_detail_texture: Option<VulkanStaticTexture>,
+    /// MAT0 phase diffuse alpha, normalized from the legacy 0..=255 byte.
+    pub diffuse_alpha: f32,
+    /// MAT0 phase alpha for the optional overlay material.
+    pub overlay_diffuse_alpha: Option<f32>,
+    /// Phase parameters 4..6 for the optional overlay material.
+    pub overlay_directional_rgb: Option<[f32; 3]>,
+    /// Phase parameters 0..2 for the optional overlay material.
+    pub overlay_additive_rgb: Option<[f32; 3]>,
+    /// Phase parameters 8..10, normalized base specular RGB coefficient.
+    ///
+    /// Specular data is kept in a storage buffer instead of push constants so
+    /// the vertex stage can evaluate the native Gouraud highlight while the
+    /// material's other dynamic values retain their existing ABI.
+    pub specular_rgb: [f32; 3],
+    /// Phase parameter 16 for the base material, carried as the native byte.
+    pub specular_power: u8,
+    /// Phase parameters 8..10 for the optional overlay material.
+    pub overlay_specular_rgb: Option<[f32; 3]>,
+    /// Phase parameter 16 for the optional overlay material.
+    pub overlay_specular_power: Option<u8>,
+    /// Normalized atlas transform for the optional detail texture.
+    pub detail_uv_transform: [f32; 4],
+    /// Normalized atlas transform for the optional overlay texture.
+    pub overlay_uv_transform: Option<[f32; 4]>,
+    /// Normalized atlas transform for the optional overlay detail texture.
+    pub overlay_detail_uv_transform: Option<[f32; 4]>,
+    /// Environment layers bypass terrain lighting and fog while retaining the
+    /// same descriptor/pipeline path.
+    pub unlit: bool,
+    /// Native sky mode 4: blend base and secondary textures by the secondary
+    /// texture alpha before multiplying by the vertex diffuse color.
+    pub sky_nebula_stars: bool,
+    /// Native terrain mode 3: combine base and secondary lightmap textures
+    /// without the regular terrain `2 * TEX0 * TEX1` combiner or NdotL.
+    pub lightmap_mode: bool,
+    /// Push material mode bit 4 and map this sky layer to the Vulkan far
+    /// plane without changing its world-space vertices or UVs.  This is a
+    /// renderer projection choice; it is not a claim about the original D3D
+    /// depth-bit encoding.
+    pub sky_far_depth: bool,
+}
+
+/// One authored RGBA8 mip level accepted by the Vulkan texture upload path.
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub struct VulkanStaticTextureMip {
+    /// Mip width in texels.
+    pub width: u32,
+    /// Mip height in texels.
+    pub height: u32,
+    /// Row-major RGBA8 pixels.
+    pub rgba8: Vec<u8>,
 }
 
 /// Decoded RGBA8 image accepted by the initial Vulkan texture upload path.
@@ -182,6 +525,10 @@ pub struct VulkanStaticTexture {
     pub height: u32,
     /// Row-major RGBA8 pixels.
     pub rgba8: Vec<u8>,
+    /// Authored mip levels, including mip zero, when available.
+    ///
+    /// An empty vector requests deterministic CPU generation from `rgba8`.
+    pub mip_levels: Vec<VulkanStaticTextureMip>,
 }
 
 impl VulkanStaticTexture {
@@ -200,7 +547,46 @@ impl VulkanStaticTexture {
             Some(expected) if expected != self.rgba8.len() => {
                 Err("static texture rgba8 byte count does not match extent")
             }
-            Some(_) => Ok(()),
+            Some(_) => {
+                if self.mip_levels.is_empty() {
+                    return Ok(());
+                }
+                // TEXM files commonly stop at the authored 4x4 level. Vulkan
+                // permits a partial mip chain; only the supplied level
+                // extents and bytes need validation.
+                if self.mip_levels.len()
+                    > usize::try_from(self.width.max(self.height))
+                        .unwrap_or(usize::MAX)
+                        .ilog2() as usize
+                        + 1
+                {
+                    return Err("static texture authored mip count exceeds extent");
+                }
+                let mut width = self.width;
+                let mut height = self.height;
+                for (level, mip) in self.mip_levels.iter().enumerate() {
+                    if mip.width != width || mip.height != height {
+                        return Err("static texture authored mip extent does not match level");
+                    }
+                    let expected = usize::try_from(width)
+                        .ok()
+                        .and_then(|width| {
+                            usize::try_from(height)
+                                .ok()
+                                .and_then(|height| width.checked_mul(height))
+                        })
+                        .and_then(|pixels| pixels.checked_mul(4));
+                    if expected != Some(mip.rgba8.len()) {
+                        return Err("static texture authored mip byte count does not match extent");
+                    }
+                    if level == 0 && mip.rgba8 != self.rgba8 {
+                        return Err("static texture authored mip zero does not match rgba8");
+                    }
+                    width = (width / 2).max(1);
+                    height = (height / 2).max(1);
+                }
+                Ok(())
+            }
         }
     }
 }
@@ -216,6 +602,60 @@ pub(super) fn resolve_draw_texture_indices(
 ) -> Result<Vec<usize>, &'static str> {
     for (index, material) in materials.iter().enumerate() {
         material.texture.validate()?;
+        if let Some(texture) = &material.detail_texture {
+            texture.validate()?;
+        }
+        if let Some(texture) = &material.overlay_texture {
+            texture.validate()?;
+        }
+        if let Some(texture) = &material.overlay_detail_texture {
+            texture.validate()?;
+        }
+        if !material.diffuse_alpha.is_finite() || !(0.0..=1.0).contains(&material.diffuse_alpha) {
+            return Err("static material diffuse alpha must be finite and 0..1");
+        }
+        if material
+            .directional_rgb
+            .into_iter()
+            .chain(material.additive_rgb)
+            .chain(material.specular_rgb)
+            .chain(material.overlay_specular_rgb.into_iter().flatten())
+            .any(|value| !value.is_finite() || value < 0.0)
+        {
+            return Err("static material lighting and specular RGB parameters must be finite and non-negative");
+        }
+        if material
+            .uv_transform
+            .into_iter()
+            .chain(material.detail_uv_transform)
+            .any(|value| !value.is_finite())
+        {
+            return Err("static material UV transforms must be finite");
+        }
+        if material
+            .overlay_diffuse_alpha
+            .is_some_and(|alpha| !alpha.is_finite() || !(0.0..=1.0).contains(&alpha))
+        {
+            return Err("static material overlay diffuse alpha must be finite and 0..1");
+        }
+        if material
+            .overlay_directional_rgb
+            .into_iter()
+            .flatten()
+            .chain(material.overlay_additive_rgb.into_iter().flatten())
+            .any(|value| !value.is_finite() || value < 0.0)
+        {
+            return Err("static material overlay RGB parameters must be finite and non-negative");
+        }
+        if material
+            .overlay_uv_transform
+            .into_iter()
+            .flatten()
+            .chain(material.overlay_detail_uv_transform.into_iter().flatten())
+            .any(|value| !value.is_finite())
+        {
+            return Err("static material overlay UV transforms must be finite");
+        }
         if materials[..index]
             .iter()
             .any(|previous| previous.material_index == material.material_index)
@@ -247,17 +687,26 @@ impl VulkanStaticMesh {
                 VulkanStaticVertex {
                     position: [0.0, -0.55, 0.0],
                     color: [1.0, 0.2, 0.2],
+                    normal: [0.0, 0.0, 1.0],
                     uv: [0.5, 0.0],
+                    detail_uv: [0.0, 0.0],
+                    overlay_alpha: 0.0,
                 },
                 VulkanStaticVertex {
                     position: [0.55, 0.55, 0.0],
                     color: [0.2, 1.0, 0.2],
+                    normal: [0.0, 0.0, 1.0],
                     uv: [1.0, 1.0],
+                    detail_uv: [0.0, 0.0],
+                    overlay_alpha: 0.0,
                 },
                 VulkanStaticVertex {
                     position: [-0.55, 0.55, 0.0],
                     color: [0.2, 0.4, 1.0],
+                    normal: [0.0, 0.0, 1.0],
                     uv: [0.0, 1.0],
+                    detail_uv: [0.0, 0.0],
+                    overlay_alpha: 0.0,
                 },
             ],
             indices: vec![0, 1, 2],
@@ -265,6 +714,8 @@ impl VulkanStaticMesh {
                 first_index: 0,
                 index_count: 3,
                 material_index: 0,
+                lightmap_index: u8::MAX,
+                batch_flags: 0,
                 pipeline_state: LegacyPipelineState::default(),
                 alpha_test_reference: 0,
             }],
@@ -275,6 +726,22 @@ impl VulkanStaticMesh {
         if self.vertices.is_empty() {
             return Err("static mesh has no vertices");
         }
+        if self.vertices.iter().any(|vertex| {
+            !vertex
+                .position
+                .iter()
+                .chain(vertex.color.iter())
+                .chain(vertex.normal.iter())
+                .chain(vertex.uv.iter())
+                .chain(vertex.detail_uv.iter())
+                .chain(std::iter::once(&vertex.overlay_alpha))
+                .all(|value| value.is_finite())
+                || !(0.0..=1.0).contains(&vertex.overlay_alpha)
+        }) {
+            return Err(
+                "static mesh vertex attributes must be finite and overlay alpha must be 0..1",
+            );
+        }
         if self.indices.is_empty() || !self.indices.len().is_multiple_of(3) {
             return Err("static mesh indices must contain complete triangles");
         }
@@ -312,6 +779,53 @@ mod static_mesh_tests {
     use super::*;
 
     #[test]
+    fn frame_uniforms_use_std140_sized_slots_and_preserve_dynamic_values() {
+        let frame = VulkanFrameUniforms {
+            clip_from_world: std::array::from_fn(|index| index as f32),
+            directional_lights: [
+                VulkanDirectionalLight {
+                    direction: [1.0, 2.0, 3.0],
+                    rgb: [4.0, 5.0, 6.0],
+                    coefficients: [7.0, 8.0, 9.0],
+                    active: true,
+                },
+                VulkanDirectionalLight::default(),
+                VulkanDirectionalLight::default(),
+                VulkanDirectionalLight::default(),
+            ],
+            point_light: VulkanPointLight {
+                position: [28.0, 29.0, 30.0],
+                rgb: [31.0, 32.0, 33.0],
+                range: 34.0,
+                coefficients: [35.0, 36.0, 37.0],
+                active: true,
+            },
+            lighting_floor: [7.0, 8.0, 9.0],
+            fog_color: [10.0, 11.0, 12.0],
+            fog_start: 13.0,
+            fog_end: 14.0,
+            camera_position: [15.0, 16.0, 17.0],
+        };
+        let bytes = frame.to_ne_bytes();
+        assert_eq!(bytes.len(), VULKAN_FRAME_UNIFORM_BYTES);
+        let read =
+            |offset: usize| f32::from_ne_bytes(bytes[offset..offset + 4].try_into().expect("f32"));
+        assert_eq!(read(0), 0.0);
+        assert_eq!(read(60), 15.0);
+        assert_eq!(read(64), 1.0);
+        assert_eq!(read(76), 1.0);
+        assert_eq!(read(128), 4.0);
+        assert_eq!(read(192), 7.0);
+        assert_eq!(read(256), 28.0);
+        assert_eq!(read(272), 31.0);
+        assert_eq!(read(288), 35.0);
+        assert_eq!(read(304), 7.0);
+        assert_eq!(read(320), 10.0);
+        assert_eq!(read(336), 13.0);
+        assert_eq!(read(352), 15.0);
+    }
+
+    #[test]
     fn smoke_triangle_is_valid_complete_geometry() {
         let mesh = VulkanStaticMesh::smoke_triangle();
 
@@ -358,6 +872,54 @@ mod static_mesh_tests {
     }
 
     #[test]
+    fn legacy_camera_maps_world_up_to_top_of_positive_height_vulkan_viewport() {
+        let transform = RawCameraTransform {
+            words: [
+                1.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                1.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                1.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                0.0_f32.to_bits(),
+                1.0_f32.to_bits(),
+            ],
+        };
+        let projection = LegacyD3d7Projection {
+            viewport: [0, 0, 1024, 768],
+            near_plane: 0.5,
+            far_plane: 700.0,
+            field_of_view_radians: 1.3,
+        };
+
+        let camera = VulkanStaticCamera::from_legacy_d3d7(transform, projection)
+            .expect("recovered camera inputs are valid");
+        // The raw identity camera's recovered view maps world +X to depth
+        // and world +Z to camera up.
+        let world_up_at_positive_depth = [10.0, 0.0, 1.0, 1.0];
+        let clip_y = (0..4)
+            .map(|row| world_up_at_positive_depth[row] * camera.clip_from_world[row * 4 + 1])
+            .sum::<f32>();
+        let clip_w = (0..4)
+            .map(|row| world_up_at_positive_depth[row] * camera.clip_from_world[row * 4 + 3])
+            .sum::<f32>();
+
+        assert!(clip_w > 0.0);
+        assert!(
+            clip_y / clip_w < 0.0,
+            "world up must map to the viewport top"
+        );
+    }
+
+    #[test]
     fn static_camera_accepts_finite_runtime_matrices_and_rejects_nan() {
         let identity = VulkanStaticCamera::default().clip_from_world;
 
@@ -387,6 +949,8 @@ mod static_mesh_tests {
                 first_index: 0,
                 index_count: 2,
                 material_index: 0,
+                lightmap_index: u8::MAX,
+                batch_flags: 0,
                 pipeline_state: LegacyPipelineState::default(),
                 alpha_test_reference: 0,
             }],
@@ -415,6 +979,8 @@ mod static_mesh_tests {
                 first_index: 0,
                 index_count: 3,
                 material_index: 7,
+                lightmap_index: u8::MAX,
+                batch_flags: 0,
                 pipeline_state: LegacyPipelineState::default(),
                 alpha_test_reference: 0,
             },
@@ -422,6 +988,8 @@ mod static_mesh_tests {
                 first_index: 3,
                 index_count: 3,
                 material_index: 2,
+                lightmap_index: u8::MAX,
+                batch_flags: 0,
                 pipeline_state: LegacyPipelineState::default(),
                 alpha_test_reference: 0,
             },
@@ -430,15 +998,58 @@ mod static_mesh_tests {
             width: 1,
             height: 1,
             rgba8: vec![255; 4],
+            mip_levels: Vec::new(),
         };
         let materials = [
             VulkanStaticMaterial {
                 material_index: 2,
                 texture: texture(),
+                detail_texture: None,
+                overlay_texture: None,
+                overlay_detail_texture: None,
+                diffuse_alpha: 1.0,
+                overlay_diffuse_alpha: None,
+                directional_rgb: [1.0; 3],
+                additive_rgb: [0.0; 3],
+                specular_rgb: [0.0; 3],
+                specular_power: 0,
+                overlay_specular_rgb: None,
+                overlay_specular_power: None,
+                uv_transform: [0.0, 0.0, 1.0, 1.0],
+                overlay_directional_rgb: None,
+                overlay_additive_rgb: None,
+                detail_uv_transform: [0.0, 0.0, 1.0, 1.0],
+                overlay_uv_transform: None,
+                overlay_detail_uv_transform: None,
+                unlit: false,
+                sky_nebula_stars: false,
+                lightmap_mode: false,
+                sky_far_depth: false,
             },
             VulkanStaticMaterial {
                 material_index: 7,
                 texture: texture(),
+                detail_texture: None,
+                overlay_texture: None,
+                overlay_detail_texture: None,
+                diffuse_alpha: 1.0,
+                overlay_diffuse_alpha: None,
+                directional_rgb: [1.0; 3],
+                additive_rgb: [0.0; 3],
+                specular_rgb: [0.0; 3],
+                specular_power: 0,
+                overlay_specular_rgb: None,
+                overlay_specular_power: None,
+                uv_transform: [0.0, 0.0, 1.0, 1.0],
+                overlay_directional_rgb: None,
+                overlay_additive_rgb: None,
+                detail_uv_transform: [0.0, 0.0, 1.0, 1.0],
+                overlay_uv_transform: None,
+                overlay_detail_uv_transform: None,
+                unlit: false,
+                sky_nebula_stars: false,
+                lightmap_mode: false,
+                sky_far_depth: false,
             },
         ];
 
@@ -480,6 +1091,24 @@ mod static_mesh_tests {
         };
         assert_eq!(disabled.alpha_test_cutoff(), 0.0);
         assert_eq!(enabled.alpha_test_cutoff(), 128.0 / 255.0);
+        let explicit_zero = VulkanStaticDrawRange {
+            pipeline_state: LegacyPipelineState {
+                alpha_test: true,
+                ..LegacyPipelineState::default()
+            },
+            alpha_test_reference: 0,
+            ..base
+        };
+        assert_eq!(explicit_zero.alpha_test_cutoff(), 0.0);
+        let native_default = VulkanStaticDrawRange {
+            pipeline_state: LegacyPipelineState {
+                alpha_test: true,
+                ..LegacyPipelineState::default()
+            },
+            alpha_test_reference: VulkanStaticDrawRange::NATIVE_DEFAULT_ALPHA_TEST_REFERENCE,
+            ..base
+        };
+        assert_eq!(native_default.alpha_test_cutoff(), 1.0 / 255.0);
     }
 }
 
@@ -727,10 +1356,46 @@ pub struct VulkanSmokeRenderer {
     pub(super) swapchain_resources: Option<VulkanSwapchainResources>,
     pub(super) vertex_buffer: Option<VulkanAllocatedBuffer>,
     pub(super) index_buffer: Option<VulkanAllocatedBuffer>,
+    /// Positional material slots mapped to the owned image list. Fallback
+    /// stages may share one image without coupling independently animated
+    /// material textures.
+    pub(super) texture_slot_indices: Vec<usize>,
     pub(super) textures: Vec<VulkanAllocatedImage>,
+    pub(super) vertex_count: usize,
+    /// Retained index allocation length. The upload path grows this only when
+    /// a frame actually needs more shared indices and never shrinks it.
+    pub(super) index_capacity: usize,
+    pub(super) draw_range_capacities: Vec<u32>,
     pub(super) draw_ranges: Vec<VulkanStaticDrawRange>,
     pub(super) draw_texture_indices: Vec<usize>,
+    /// Stable range handles used when recording the native pass order.
+    pub(super) draw_order: Vec<usize>,
+    /// Native camera-sort values returned by the draw-item camera callback.
+    pub(super) draw_range_sort_keys: Vec<Option<f32>>,
+    /// Whether the stable order must be rebuilt before the next command
+    /// buffer.  Range setters are called in batches by the game loop.
+    pub(super) draw_order_dirty: bool,
+    /// World queue classification for each stable range handle. `None` keeps
+    /// a fixed screen/sky/weather pass; `Some(false)` is world opaque and
+    /// `Some(true)` is world transparent.
+    pub(super) draw_range_world_queue: Vec<Option<bool>>,
+    /// Pipeline state before transparent queue depth policy is applied.
+    pub(super) draw_range_base_pipeline_states: Vec<LegacyPipelineState>,
+    pub(super) material_alphas: Vec<[f32; 2]>,
+    pub(super) material_lighting: Vec<[[f32; 3]; 4]>,
+    pub(super) material_uv_transforms: Vec<[[f32; 4]; 4]>,
+    /// Base and overlay specular records uploaded to the dynamic SSBO.
+    pub(super) material_specular: Vec<[[f32; 4]; 2]>,
+    /// Original selector for each positional material record.
+    pub(super) material_selectors: Vec<u16>,
+    /// Whether the host-side specular records need a fence-safe GPU upload.
+    pub(super) material_specular_dirty: bool,
+    /// Encoded material mode pushed at offset 124: 0 lit, 1 unlit, 2 native
+    /// sky nebula/stars texture composite, 3 native lightmap composite.
+    pub(super) material_unlit: Vec<f32>,
+    pub(super) readback_enabled: bool,
     pub(super) camera: VulkanStaticCamera,
+    pub(super) frame_uniforms: VulkanFrameUniforms,
     pub(super) frame_sync: Vec<VulkanFrameSync>,
     pub(super) images_in_flight: Vec<vk::Fence>,
     pub(super) current_frame: usize,
diff --git a/adapters/fparkan-render-vulkan/src/ffi/swapchain_resources.rs b/adapters/fparkan-render-vulkan/src/ffi/swapchain_resources.rs
index c175f0d..b8049d3 100644
--- a/adapters/fparkan-render-vulkan/src/ffi/swapchain_resources.rs
+++ b/adapters/fparkan-render-vulkan/src/ffi/swapchain_resources.rs
@@ -8,38 +8,85 @@ use fparkan_render::{
 use std::collections::BTreeMap;
 
 use super::{
-    color_subresource_range, create_depth_attachment, destroy_depth_attachment,
-    VulkanAllocatedBuffer, VulkanAllocatedImage, VulkanDepthAttachment, VulkanInstanceProbe,
-    VulkanLogicalDeviceProbe, VulkanSmokeRendererError, VulkanSwapchainProbe,
-    TRIANGLE_FRAGMENT_SHADER_WORDS, TRIANGLE_VERTEX_SHADER_WORDS,
+    color_subresource_range, create_depth_attachment, create_material_specular_buffer,
+    destroy_depth_attachment, VulkanAllocatedBuffer, VulkanAllocatedImage, VulkanDepthAttachment,
+    VulkanInstanceProbe, VulkanLogicalDeviceProbe, VulkanSmokeRendererError, VulkanSwapchainProbe,
+    TRIANGLE_FRAGMENT_SHADER_WORDS, TRIANGLE_VERTEX_SHADER_WORDS, VULKAN_FRAME_UNIFORM_BYTES,
+    VULKAN_MATERIAL_SPECULAR_RECORD_BYTES,
 };
 
 pub(super) struct VulkanSwapchainResources {
     pub(super) image_views: Vec<vk::ImageView>,
     pub(super) images: Vec<vk::Image>,
     pub(super) readback_buffers: Vec<VulkanAllocatedBuffer>,
-    pub(super) depth_attachment: VulkanDepthAttachment,
+    /// One depth image per swapchain image so frames can overlap safely.
+    pub(super) depth_attachments: Vec<VulkanDepthAttachment>,
+    /// A render-finished semaphore dedicated to each swapchain image.
+    pub(super) render_finished: Vec<vk::Semaphore>,
     pub(super) render_pass: vk::RenderPass,
     pub(super) pipeline_layout: vk::PipelineLayout,
     pub(super) descriptor_set_layout: vk::DescriptorSetLayout,
     pub(super) descriptor_pool: vk::DescriptorPool,
     pub(super) descriptor_sets: Vec<vk::DescriptorSet>,
     pub(super) sampler: vk::Sampler,
+    pub(super) frame_uniform_buffer: VulkanAllocatedBuffer,
+    pub(super) frame_uniform_stride: u64,
+    pub(super) material_specular_buffer: VulkanAllocatedBuffer,
+    pub(super) material_specular_stride: u64,
     /// Live graphics pipelines indexed by canonical backend-neutral state.
     pub(super) pipelines: BTreeMap<PipelineKey, vk::Pipeline>,
     pub(super) framebuffers: Vec<vk::Framebuffer>,
     pub(super) command_buffers: Vec<vk::CommandBuffer>,
 }
 
+pub(super) fn update_material_texture_descriptor(
+    device: &VulkanLogicalDeviceProbe,
+    resources: &VulkanSwapchainResources,
+    material_index: usize,
+    texture_slot: usize,
+    texture: &VulkanAllocatedImage,
+) -> Result<(), VulkanSmokeRendererError> {
+    if texture_slot >= 4 {
+        return Err(VulkanSmokeRendererError::InvalidStaticTexture {
+            context: "dynamic material texture slot is out of bounds",
+        });
+    }
+    let descriptor_set = resources
+        .descriptor_sets
+        .get(material_index)
+        .copied()
+        .ok_or(VulkanSmokeRendererError::InvalidStaticTexture {
+            context: "dynamic material descriptor set is out of bounds",
+        })?;
+    let image_info = vk::DescriptorImageInfo::default()
+        .sampler(resources.sampler)
+        .image_view(texture.view)
+        .image_layout(vk::ImageLayout::SHADER_READ_ONLY_OPTIMAL);
+    let write = vk::WriteDescriptorSet::default()
+        .dst_set(descriptor_set)
+        .dst_binding(u32::try_from(texture_slot).unwrap_or(u32::MAX))
+        .descriptor_type(vk::DescriptorType::COMBINED_IMAGE_SAMPLER)
+        .image_info(std::slice::from_ref(&image_info));
+    // SAFETY: the renderer idles the device before changing a descriptor that
+    // may be referenced by an in-flight command buffer.
+    unsafe { device.device().update_descriptor_sets(&[write], &[]) };
+    Ok(())
+}
+
 struct PartialSwapchainResources {
     image_views: Vec<vk::ImageView>,
     readback_buffers: Vec<VulkanAllocatedBuffer>,
-    depth_attachment: Option<VulkanDepthAttachment>,
+    depth_attachments: Vec<VulkanDepthAttachment>,
+    render_finished: Vec<vk::Semaphore>,
     render_pass: Option<vk::RenderPass>,
     pipeline_layout: Option<vk::PipelineLayout>,
     descriptor_set_layout: Option<vk::DescriptorSetLayout>,
     descriptor_pool: Option<vk::DescriptorPool>,
     sampler: Option<vk::Sampler>,
+    frame_uniform_buffer: Option<VulkanAllocatedBuffer>,
+    frame_uniform_stride: u64,
+    material_specular_buffer: Option<VulkanAllocatedBuffer>,
+    material_specular_stride: u64,
     pipelines: BTreeMap<PipelineKey, vk::Pipeline>,
     framebuffers: Vec<vk::Framebuffer>,
     command_buffers: Vec<vk::CommandBuffer>,
@@ -53,6 +100,7 @@ pub(super) fn create_swapchain_resources(
     vertex_buffer: &VulkanAllocatedBuffer,
     index_buffer: &VulkanAllocatedBuffer,
     textures: &[VulkanAllocatedImage],
+    texture_slot_indices: &[usize],
     draw_ranges: &[super::VulkanStaticDrawRange],
     depth_request: DepthStencilSupport,
     reuse_command_pool: bool,
@@ -74,16 +122,57 @@ pub(super) fn create_swapchain_resources(
             swapchain.report.plan.format.format,
         )?,
         readback_buffers: Vec::new(),
-        depth_attachment: None,
+        depth_attachments: Vec::new(),
+        render_finished: Vec::new(),
         render_pass: None,
         pipeline_layout: None,
         descriptor_set_layout: None,
         descriptor_pool: None,
         sampler: None,
+        frame_uniform_buffer: None,
+        frame_uniform_stride: 0,
+        material_specular_buffer: None,
+        material_specular_stride: 0,
         pipelines: BTreeMap::new(),
         framebuffers: Vec::new(),
         command_buffers: Vec::new(),
     };
+    let semaphore_info = vk::SemaphoreCreateInfo::default();
+    for _ in &images {
+        // SAFETY: The semaphore belongs to this live logical device and is
+        // destroyed with the swapchain resources.
+        match unsafe { device.device().create_semaphore(&semaphore_info, None) } {
+            Ok(semaphore) => partial.render_finished.push(semaphore),
+            Err(result) => {
+                destroy_partial_swapchain_resources(device, command_pool, partial);
+                return Err(VulkanSmokeRendererError::VulkanOperation {
+                    context: "vkCreateSemaphore(render_finished)",
+                    result,
+                });
+            }
+        }
+    }
+    let (frame_uniform_buffer, frame_uniform_stride) =
+        match super::create_frame_uniform_buffer(instance, device) {
+            Ok(buffer) => buffer,
+            Err(error) => {
+                destroy_partial_swapchain_resources(device, command_pool, partial);
+                return Err(error);
+            }
+        };
+    partial.frame_uniform_stride = frame_uniform_stride;
+    partial.frame_uniform_buffer = Some(frame_uniform_buffer);
+    let material_count = texture_slot_indices.len() / 4;
+    let (material_specular_buffer, material_specular_stride) =
+        match create_material_specular_buffer(instance, device, material_count) {
+            Ok(buffer) => buffer,
+            Err(error) => {
+                destroy_partial_swapchain_resources(device, command_pool, partial);
+                return Err(error);
+            }
+        };
+    partial.material_specular_stride = material_specular_stride;
+    partial.material_specular_buffer = Some(material_specular_buffer);
     let (
         depth_attachment,
         render_pass,
@@ -99,8 +188,17 @@ pub(super) fn create_swapchain_resources(
         swapchain.report.plan.format.format,
         swapchain.report.plan.extent,
         textures,
+        texture_slot_indices,
         draw_ranges,
         depth_request,
+        partial
+            .frame_uniform_buffer
+            .as_ref()
+            .expect("frame uniform buffer is present before descriptor creation"),
+        partial
+            .material_specular_buffer
+            .as_ref()
+            .expect("material specular buffer is present before descriptor creation"),
     ) {
         Ok(bundle) => bundle,
         Err(error) => {
@@ -108,19 +206,35 @@ pub(super) fn create_swapchain_resources(
             return Err(error);
         }
     };
-    let depth_view = depth_attachment.image.view;
-    partial.depth_attachment = Some(depth_attachment);
+    // Keep every handle from the bundle in the partial owner before creating
+    // the remaining per-image depth attachments. That loop can fail after the
+    // first attachment, and its error path must destroy the whole bundle.
+    partial.depth_attachments.push(depth_attachment);
     partial.render_pass = Some(render_pass);
     partial.pipeline_layout = Some(pipeline_layout);
     partial.descriptor_set_layout = Some(descriptor_set_layout);
     partial.descriptor_pool = Some(descriptor_pool);
     partial.sampler = Some(sampler);
     partial.pipelines = pipelines;
+    for _ in 1..images.len() {
+        match create_depth_attachment(
+            instance,
+            device,
+            swapchain.report.plan.extent,
+            depth_request,
+        ) {
+            Ok(attachment) => partial.depth_attachments.push(attachment),
+            Err(error) => {
+                destroy_partial_swapchain_resources(device, command_pool, partial);
+                return Err(error);
+            }
+        }
+    }
     let framebuffers = match create_swapchain_framebuffers(
         device,
         render_pass,
         &partial.image_views,
-        depth_view,
+        &partial.depth_attachments,
         swapchain.report.plan.extent,
     ) {
         Ok(framebuffers) => framebuffers,
@@ -168,24 +282,44 @@ pub(super) fn create_swapchain_resources(
     };
     partial.command_buffers = command_buffers;
     let _ = (vertex_buffer, index_buffer);
-    let depth_attachment =
-        partial
-            .depth_attachment
-            .take()
-            .ok_or(VulkanSmokeRendererError::InvariantViolation {
-                context: "depth attachment ownership after swapchain setup",
-            })?;
+    if partial.depth_attachments.len() != images.len()
+        || partial.render_finished.len() != images.len()
+    {
+        destroy_partial_swapchain_resources(device, command_pool, partial);
+        return Err(VulkanSmokeRendererError::InvariantViolation {
+            context: "swapchain per-image resource count after setup",
+        });
+    }
     Ok(VulkanSwapchainResources {
         image_views: partial.image_views,
         images,
         readback_buffers: partial.readback_buffers,
-        depth_attachment,
-        render_pass,
-        pipeline_layout,
-        descriptor_set_layout,
-        descriptor_pool,
+        depth_attachments: partial.depth_attachments,
+        render_finished: partial.render_finished,
+        render_pass: partial
+            .render_pass
+            .expect("render pass is present after successful swapchain setup"),
+        pipeline_layout: partial
+            .pipeline_layout
+            .expect("pipeline layout is present after successful swapchain setup"),
+        descriptor_set_layout: partial
+            .descriptor_set_layout
+            .expect("descriptor set layout is present after successful swapchain setup"),
+        descriptor_pool: partial
+            .descriptor_pool
+            .expect("descriptor pool is present after successful swapchain setup"),
         descriptor_sets,
-        sampler,
+        sampler: partial
+            .sampler
+            .expect("sampler is present after successful swapchain setup"),
+        frame_uniform_buffer: partial
+            .frame_uniform_buffer
+            .expect("frame uniform buffer is present after successful swapchain setup"),
+        frame_uniform_stride: partial.frame_uniform_stride,
+        material_specular_buffer: partial
+            .material_specular_buffer
+            .expect("material specular buffer is present after successful swapchain setup"),
+        material_specular_stride: partial.material_specular_stride,
         pipelines: partial.pipelines,
         framebuffers: partial.framebuffers,
         command_buffers: partial.command_buffers,
@@ -210,8 +344,11 @@ fn create_swapchain_pipeline_bundle(
     format: i32,
     extent: (u32, u32),
     textures: &[VulkanAllocatedImage],
+    texture_slot_indices: &[usize],
     draw_ranges: &[super::VulkanStaticDrawRange],
     depth_request: DepthStencilSupport,
+    frame_uniform_buffer: &VulkanAllocatedBuffer,
+    material_specular_buffer: &VulkanAllocatedBuffer,
 ) -> Result<
     (
         VulkanDepthAttachment,
@@ -234,7 +371,14 @@ fn create_swapchain_pipeline_bundle(
         }
     };
     let (descriptor_set_layout, descriptor_pool, descriptor_sets, sampler) =
-        create_texture_descriptor_bundle(device, textures).inspect_err(|_| {
+        create_texture_descriptor_bundle(
+            device,
+            textures,
+            texture_slot_indices,
+            frame_uniform_buffer,
+            material_specular_buffer,
+        )
+        .inspect_err(|_| {
             // SAFETY: The render pass was created above on this live logical device and is destroyed on setup failure.
             unsafe { device.device().destroy_render_pass(render_pass, None) };
             destroy_depth_attachment(device, &depth_attachment);
@@ -289,12 +433,23 @@ fn create_swapchain_framebuffers(
     device: &VulkanLogicalDeviceProbe,
     render_pass: vk::RenderPass,
     image_views: &[vk::ImageView],
-    depth_view: vk::ImageView,
+    depth_attachments: &[VulkanDepthAttachment],
     extent: (u32, u32),
 ) -> Result<Vec<vk::Framebuffer>, VulkanSmokeRendererError> {
+    if image_views.len() != depth_attachments.len() {
+        return Err(VulkanSmokeRendererError::InvariantViolation {
+            context: "swapchain color/depth attachment count",
+        });
+    }
     let mut framebuffers = Vec::with_capacity(image_views.len());
-    for image_view in image_views.iter().copied() {
-        match create_framebuffer(device, render_pass, image_view, depth_view, extent) {
+    for (image_view, depth_attachment) in image_views.iter().copied().zip(depth_attachments) {
+        match create_framebuffer(
+            device,
+            render_pass,
+            image_view,
+            depth_attachment.image.view,
+            extent,
+        ) {
             Ok(framebuffer) => framebuffers.push(framebuffer),
             Err(error) => {
                 // SAFETY: These framebuffers were created above on this live logical device and are destroyed on setup failure.
@@ -339,7 +494,7 @@ fn create_image_view(
         .image(image)
         .view_type(vk::ImageViewType::TYPE_2D)
         .format(vk::Format::from_raw(format))
-        .subresource_range(color_subresource_range());
+        .subresource_range(color_subresource_range(1));
     // SAFETY: The image comes from the live swapchain and the subresource range covers its color aspect.
     unsafe { device.device().create_image_view(&create_info, None) }.map_err(|error| {
         VulkanSmokeRendererError::VulkanOperation {
@@ -384,10 +539,21 @@ fn create_render_pass(
     let dependency = vk::SubpassDependency::default()
         .src_subpass(vk::SUBPASS_EXTERNAL)
         .dst_subpass(0)
-        .src_stage_mask(vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT)
-        .dst_stage_mask(vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT)
+        .src_stage_mask(
+            vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT
+                | vk::PipelineStageFlags::EARLY_FRAGMENT_TESTS
+                | vk::PipelineStageFlags::LATE_FRAGMENT_TESTS,
+        )
+        .dst_stage_mask(
+            vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT
+                | vk::PipelineStageFlags::EARLY_FRAGMENT_TESTS
+                | vk::PipelineStageFlags::LATE_FRAGMENT_TESTS,
+        )
         .src_access_mask(vk::AccessFlags::empty())
-        .dst_access_mask(vk::AccessFlags::COLOR_ATTACHMENT_WRITE);
+        .dst_access_mask(
+            vk::AccessFlags::COLOR_ATTACHMENT_WRITE
+                | vk::AccessFlags::DEPTH_STENCIL_ATTACHMENT_WRITE,
+        );
     let attachments = [color_attachment, depth_attachment];
     let subpasses = [subpass];
     let dependencies = [dependency];
@@ -409,16 +575,16 @@ fn create_pipeline_layout(
     descriptor_set_layout: vk::DescriptorSetLayout,
 ) -> Result<vk::PipelineLayout, VulkanSmokeRendererError> {
     let set_layouts = [descriptor_set_layout];
-    let push_constant_ranges = [
-        vk::PushConstantRange::default()
-            .stage_flags(vk::ShaderStageFlags::VERTEX)
-            .offset(0)
-            .size(64),
-        vk::PushConstantRange::default()
-            .stage_flags(vk::ShaderStageFlags::FRAGMENT)
-            .offset(64)
-            .size(u32::try_from(std::mem::size_of::<f32>()).unwrap_or(u32::MAX)),
-    ];
+    // Material data occupies one 128-byte push-constant allocation shared by
+    // both stages; the vertex stage also reads its specular pair from the
+    // dynamic storage buffer at descriptor binding 5.  Camera data is supplied
+    // by the dynamic frame UBO at descriptor binding 4.
+    // Expose the complete block from offset zero so drivers validate the
+    // fragment member's declared offset against the pipeline layout.
+    let push_constant_ranges = [vk::PushConstantRange::default()
+        .stage_flags(vk::ShaderStageFlags::VERTEX | vk::ShaderStageFlags::FRAGMENT)
+        .offset(0)
+        .size(32 * u32::try_from(std::mem::size_of::<f32>()).unwrap_or(u32::MAX))];
     let create_info = vk::PipelineLayoutCreateInfo::default()
         .set_layouts(&set_layouts)
         .push_constant_ranges(&push_constant_ranges);
@@ -434,6 +600,9 @@ fn create_pipeline_layout(
 fn create_texture_descriptor_bundle(
     device: &VulkanLogicalDeviceProbe,
     textures: &[VulkanAllocatedImage],
+    texture_slot_indices: &[usize],
+    frame_uniform_buffer: &VulkanAllocatedBuffer,
+    material_specular_buffer: &VulkanAllocatedBuffer,
 ) -> Result<
     (
         vk::DescriptorSetLayout,
@@ -443,12 +612,32 @@ fn create_texture_descriptor_bundle(
     ),
     VulkanSmokeRendererError,
 > {
-    let binding = vk::DescriptorSetLayoutBinding::default()
-        .binding(0)
-        .descriptor_type(vk::DescriptorType::COMBINED_IMAGE_SAMPLER)
-        .descriptor_count(1)
-        .stage_flags(vk::ShaderStageFlags::FRAGMENT);
-    let bindings = [binding];
+    const TEXTURES_PER_MATERIAL: usize = 4;
+    const FRAME_BINDING: u32 = 4;
+    const MATERIAL_SPECULAR_BINDING: u32 = 5;
+    let mut bindings = (0..TEXTURES_PER_MATERIAL)
+        .map(|binding| {
+            vk::DescriptorSetLayoutBinding::default()
+                .binding(u32::try_from(binding).unwrap_or(u32::MAX))
+                .descriptor_type(vk::DescriptorType::COMBINED_IMAGE_SAMPLER)
+                .descriptor_count(1)
+                .stage_flags(vk::ShaderStageFlags::FRAGMENT)
+        })
+        .collect::<Vec<_>>();
+    bindings.push(
+        vk::DescriptorSetLayoutBinding::default()
+            .binding(FRAME_BINDING)
+            .descriptor_type(vk::DescriptorType::UNIFORM_BUFFER_DYNAMIC)
+            .descriptor_count(1)
+            .stage_flags(vk::ShaderStageFlags::VERTEX | vk::ShaderStageFlags::FRAGMENT),
+    );
+    bindings.push(
+        vk::DescriptorSetLayoutBinding::default()
+            .binding(MATERIAL_SPECULAR_BINDING)
+            .descriptor_type(vk::DescriptorType::STORAGE_BUFFER_DYNAMIC)
+            .descriptor_count(1)
+            .stage_flags(vk::ShaderStageFlags::VERTEX),
+    );
     let layout_info = vk::DescriptorSetLayoutCreateInfo::default().bindings(&bindings);
     // SAFETY: The layout description is stack-owned and references no external memory.
     let layout = unsafe {
@@ -460,23 +649,40 @@ fn create_texture_descriptor_bundle(
         context: "vkCreateDescriptorSetLayout",
         result,
     })?;
-    let texture_count = u32::try_from(textures.len()).map_err(|_| {
+    let texture_count = u32::try_from(texture_slot_indices.len()).map_err(|_| {
         VulkanSmokeRendererError::InvariantViolation {
             context: "static material texture count exceeds Vulkan descriptor limit",
         }
     })?;
-    if texture_count == 0 {
+    if texture_count == 0
+        || !texture_slot_indices
+            .len()
+            .is_multiple_of(TEXTURES_PER_MATERIAL)
+        || texture_slot_indices
+            .iter()
+            .any(|texture_index| *texture_index >= textures.len())
+    {
+        // SAFETY: The layout was created above on this device and is rolled
+        // back before reporting malformed material-slot input.
+        unsafe { device.device().destroy_descriptor_set_layout(layout, None) };
         return Err(VulkanSmokeRendererError::InvariantViolation {
-            context: "static material texture list is empty",
+            context: "static material texture slots are invalid",
         });
     }
+    let material_count = texture_count / u32::try_from(TEXTURES_PER_MATERIAL).unwrap_or(1);
     let pool_size = vk::DescriptorPoolSize::default()
         .ty(vk::DescriptorType::COMBINED_IMAGE_SAMPLER)
         .descriptor_count(texture_count);
-    let pool_sizes = [pool_size];
+    let frame_pool_size = vk::DescriptorPoolSize::default()
+        .ty(vk::DescriptorType::UNIFORM_BUFFER_DYNAMIC)
+        .descriptor_count(material_count);
+    let material_specular_pool_size = vk::DescriptorPoolSize::default()
+        .ty(vk::DescriptorType::STORAGE_BUFFER_DYNAMIC)
+        .descriptor_count(material_count);
+    let pool_sizes = [pool_size, frame_pool_size, material_specular_pool_size];
     let pool_info = vk::DescriptorPoolCreateInfo::default()
         .pool_sizes(&pool_sizes)
-        .max_sets(texture_count);
+        .max_sets(material_count);
     let pool =
         // SAFETY: The pool description is stack-owned and reserves exactly one descriptor.
         unsafe { device.device().create_descriptor_pool(&pool_info, None) }.map_err(|result| {
@@ -487,7 +693,7 @@ fn create_texture_descriptor_bundle(
                 result,
             }
         })?;
-    let layouts = vec![layout; textures.len()];
+    let layouts = vec![layout; usize::try_from(material_count).unwrap_or(0)];
     let allocate_info = vk::DescriptorSetAllocateInfo::default()
         .descriptor_pool(pool)
         .set_layouts(&layouts);
@@ -511,7 +717,9 @@ fn create_texture_descriptor_bundle(
         .address_mode_u(vk::SamplerAddressMode::REPEAT)
         .address_mode_v(vk::SamplerAddressMode::REPEAT)
         .address_mode_w(vk::SamplerAddressMode::REPEAT)
-        .max_lod(0.0);
+        // The uploaded images carry a complete CPU-generated mip chain; the
+        // sampler clamps to the largest legal level for each image.
+        .max_lod(16.0);
     let sampler =
         // SAFETY: The sampler create info is stack-owned and has no unsupported optional features.
         unsafe { device.device().create_sampler(&sampler_info, None) }.map_err(|result| {
@@ -525,27 +733,51 @@ fn create_texture_descriptor_bundle(
                 result,
             }
         })?;
-    let image_infos = textures
+    let image_infos = texture_slot_indices
         .iter()
-        .map(|texture| {
+        .map(|texture_index| {
+            let texture = &textures[*texture_index];
             vk::DescriptorImageInfo::default()
                 .sampler(sampler)
                 .image_view(texture.view)
                 .image_layout(vk::ImageLayout::SHADER_READ_ONLY_OPTIMAL)
         })
         .collect::<Vec<_>>();
-    let writes = descriptor_sets
-        .iter()
-        .copied()
-        .zip(image_infos.iter())
-        .map(|(descriptor_set, image_info)| {
+    let frame_info = vk::DescriptorBufferInfo::default()
+        .buffer(frame_uniform_buffer.buffer)
+        .offset(0)
+        .range(VULKAN_FRAME_UNIFORM_BYTES as u64);
+    let material_specular_info = vk::DescriptorBufferInfo::default()
+        .buffer(material_specular_buffer.buffer)
+        .offset(0)
+        .range(VULKAN_MATERIAL_SPECULAR_RECORD_BYTES as u64);
+    let mut writes = Vec::with_capacity(descriptor_sets.len() * (TEXTURES_PER_MATERIAL + 2));
+    for (set_index, descriptor_set) in descriptor_sets.iter().copied().enumerate() {
+        for binding in 0..TEXTURES_PER_MATERIAL {
+            let image_info = &image_infos[set_index * TEXTURES_PER_MATERIAL + binding];
+            writes.push(
+                vk::WriteDescriptorSet::default()
+                    .dst_set(descriptor_set)
+                    .dst_binding(u32::try_from(binding).unwrap_or(u32::MAX))
+                    .descriptor_type(vk::DescriptorType::COMBINED_IMAGE_SAMPLER)
+                    .image_info(std::slice::from_ref(image_info)),
+            );
+        }
+        writes.push(
             vk::WriteDescriptorSet::default()
                 .dst_set(descriptor_set)
-                .dst_binding(0)
-                .descriptor_type(vk::DescriptorType::COMBINED_IMAGE_SAMPLER)
-                .image_info(std::slice::from_ref(image_info))
-        })
-        .collect::<Vec<_>>();
+                .dst_binding(FRAME_BINDING)
+                .descriptor_type(vk::DescriptorType::UNIFORM_BUFFER_DYNAMIC)
+                .buffer_info(std::slice::from_ref(&frame_info)),
+        );
+        writes.push(
+            vk::WriteDescriptorSet::default()
+                .dst_set(descriptor_set)
+                .dst_binding(MATERIAL_SPECULAR_BINDING)
+                .descriptor_type(vk::DescriptorType::STORAGE_BUFFER_DYNAMIC)
+                .buffer_info(std::slice::from_ref(&material_specular_info)),
+        );
+    }
     // SAFETY: Descriptor sets, sampler and image views are live; every texture upload completed its shader-read transition.
     unsafe { device.device().update_descriptor_sets(&writes, &[]) };
     Ok((layout, pool, descriptor_sets, sampler))
@@ -598,15 +830,16 @@ fn create_graphics_pipeline(
     extent: (u32, u32),
     state: LegacyPipelineState,
 ) -> Result<vk::Pipeline, VulkanSmokeRendererError> {
-    let vertex_shader = create_shader_module(device, TRIANGLE_VERTEX_SHADER_WORDS)?;
-    let fragment_shader = match create_shader_module(device, TRIANGLE_FRAGMENT_SHADER_WORDS) {
-        Ok(module) => module,
-        Err(error) => {
-            // SAFETY: The shader module was created above on this live logical device and is destroyed on setup failure.
-            unsafe { device.device().destroy_shader_module(vertex_shader, None) };
-            return Err(error);
-        }
-    };
+    let vertex_shader = create_shader_module(device, TRIANGLE_VERTEX_SHADER_WORDS, "vertex")?;
+    let fragment_shader =
+        match create_shader_module(device, TRIANGLE_FRAGMENT_SHADER_WORDS, "fragment") {
+            Ok(module) => module,
+            Err(error) => {
+                // SAFETY: The shader module was created above on this live logical device and is destroyed on setup failure.
+                unsafe { device.device().destroy_shader_module(vertex_shader, None) };
+                return Err(error);
+            }
+        };
     let entry_point = c"main";
     let shader_stages = [
         vk::PipelineShaderStageCreateInfo::default()
@@ -620,7 +853,7 @@ fn create_graphics_pipeline(
     ];
     let vertex_binding = vk::VertexInputBindingDescription::default()
         .binding(0)
-        .stride(u32::try_from(8 * std::mem::size_of::<f32>()).unwrap_or(u32::MAX))
+        .stride(u32::try_from(14 * std::mem::size_of::<f32>()).unwrap_or(u32::MAX))
         .input_rate(vk::VertexInputRate::VERTEX);
     let vertex_attributes = [
         vk::VertexInputAttributeDescription::default()
@@ -636,8 +869,23 @@ fn create_graphics_pipeline(
         vk::VertexInputAttributeDescription::default()
             .binding(0)
             .location(2)
-            .format(vk::Format::R32G32_SFLOAT)
+            .format(vk::Format::R32G32B32_SFLOAT)
             .offset(u32::try_from(6 * std::mem::size_of::<f32>()).unwrap_or(u32::MAX)),
+        vk::VertexInputAttributeDescription::default()
+            .binding(0)
+            .location(3)
+            .format(vk::Format::R32G32_SFLOAT)
+            .offset(u32::try_from(9 * std::mem::size_of::<f32>()).unwrap_or(u32::MAX)),
+        vk::VertexInputAttributeDescription::default()
+            .binding(0)
+            .location(4)
+            .format(vk::Format::R32G32_SFLOAT)
+            .offset(u32::try_from(11 * std::mem::size_of::<f32>()).unwrap_or(u32::MAX)),
+        vk::VertexInputAttributeDescription::default()
+            .binding(0)
+            .location(5)
+            .format(vk::Format::R32_SFLOAT)
+            .offset(u32::try_from(13 * std::mem::size_of::<f32>()).unwrap_or(u32::MAX)),
     ];
     let vertex_bindings = [vertex_binding];
     let vertex_input_state = vk::PipelineVertexInputStateCreateInfo::default()
@@ -685,6 +933,21 @@ fn create_graphics_pipeline(
         .depth_compare_op(vk::CompareOp::LESS_OR_EQUAL)
         .depth_bounds_test_enable(false)
         .stencil_test_enable(false);
+    let (blend_enable, src_color_blend_factor, dst_color_blend_factor) = match state.blend {
+        LegacyBlendMode::Opaque => (false, vk::BlendFactor::ONE, vk::BlendFactor::ZERO),
+        LegacyBlendMode::SourceAlpha => (
+            true,
+            vk::BlendFactor::SRC_ALPHA,
+            vk::BlendFactor::ONE_MINUS_SRC_ALPHA,
+        ),
+        LegacyBlendMode::Additive => (true, vk::BlendFactor::SRC_ALPHA, vk::BlendFactor::ONE),
+        LegacyBlendMode::ZeroSourceColor => {
+            (true, vk::BlendFactor::ZERO, vk::BlendFactor::SRC_COLOR)
+        }
+        LegacyBlendMode::DestColorSourceColor => {
+            (true, vk::BlendFactor::DST_COLOR, vk::BlendFactor::SRC_COLOR)
+        }
+    };
     let color_blend_attachment = vk::PipelineColorBlendAttachmentState::default()
         .color_write_mask(
             vk::ColorComponentFlags::R
@@ -692,12 +955,12 @@ fn create_graphics_pipeline(
                 | vk::ColorComponentFlags::B
                 | vk::ColorComponentFlags::A,
         )
-        .blend_enable(state.blend == LegacyBlendMode::SourceAlpha)
-        .src_color_blend_factor(vk::BlendFactor::SRC_ALPHA)
-        .dst_color_blend_factor(vk::BlendFactor::ONE_MINUS_SRC_ALPHA)
+        .blend_enable(blend_enable)
+        .src_color_blend_factor(src_color_blend_factor)
+        .dst_color_blend_factor(dst_color_blend_factor)
         .color_blend_op(vk::BlendOp::ADD)
-        .src_alpha_blend_factor(vk::BlendFactor::ONE)
-        .dst_alpha_blend_factor(vk::BlendFactor::ONE_MINUS_SRC_ALPHA)
+        .src_alpha_blend_factor(src_color_blend_factor)
+        .dst_alpha_blend_factor(dst_color_blend_factor)
         .alpha_blend_op(vk::BlendOp::ADD);
     let color_blend_attachments = [color_blend_attachment];
     let color_blend_state = vk::PipelineColorBlendStateCreateInfo::default()
@@ -738,12 +1001,17 @@ fn create_graphics_pipeline(
 fn create_shader_module(
     device: &VulkanLogicalDeviceProbe,
     words: &[u32],
+    stage: &'static str,
 ) -> Result<vk::ShaderModule, VulkanSmokeRendererError> {
     let create_info = vk::ShaderModuleCreateInfo::default().code(words);
     // SAFETY: The SPIR-V slice points to static checked-in words and lives for the duration of the call.
     unsafe { device.device().create_shader_module(&create_info, None) }.map_err(|error| {
         VulkanSmokeRendererError::VulkanOperation {
-            context: "vkCreateShaderModule",
+            context: if stage == "vertex" {
+                "vkCreateShaderModule(vertex)"
+            } else {
+                "vkCreateShaderModule(fragment)"
+            },
             result: error,
         }
     })
@@ -821,7 +1089,9 @@ pub(super) fn destroy_swapchain_resources(
         device
             .device()
             .destroy_render_pass(resources.render_pass, None);
-        destroy_depth_attachment(device, &resources.depth_attachment);
+        for depth_attachment in resources.depth_attachments {
+            destroy_depth_attachment(device, &depth_attachment);
+        }
         for image_view in resources.image_views {
             device.device().destroy_image_view(image_view, None);
         }
@@ -829,6 +1099,21 @@ pub(super) fn destroy_swapchain_resources(
             device.device().destroy_buffer(buffer.buffer, None);
             device.device().free_memory(buffer.memory, None);
         }
+        for semaphore in resources.render_finished {
+            device.device().destroy_semaphore(semaphore, None);
+        }
+        device
+            .device()
+            .destroy_buffer(resources.frame_uniform_buffer.buffer, None);
+        device
+            .device()
+            .free_memory(resources.frame_uniform_buffer.memory, None);
+        device
+            .device()
+            .destroy_buffer(resources.material_specular_buffer.buffer, None);
+        device
+            .device()
+            .free_memory(resources.material_specular_buffer.memory, None);
     }
 }
 
@@ -871,7 +1156,7 @@ fn destroy_partial_swapchain_resources(
         if let Some(render_pass) = partial.render_pass {
             device.device().destroy_render_pass(render_pass, None);
         }
-        if let Some(depth_attachment) = partial.depth_attachment {
+        for depth_attachment in partial.depth_attachments {
             destroy_depth_attachment(device, &depth_attachment);
         }
         for image_view in partial.image_views {
@@ -881,5 +1166,16 @@ fn destroy_partial_swapchain_resources(
             device.device().destroy_buffer(buffer.buffer, None);
             device.device().free_memory(buffer.memory, None);
         }
+        for semaphore in partial.render_finished {
+            device.device().destroy_semaphore(semaphore, None);
+        }
+        if let Some(buffer) = partial.frame_uniform_buffer {
+            device.device().destroy_buffer(buffer.buffer, None);
+            device.device().free_memory(buffer.memory, None);
+        }
+        if let Some(buffer) = partial.material_specular_buffer {
+            device.device().destroy_buffer(buffer.buffer, None);
+            device.device().free_memory(buffer.memory, None);
+        }
     }
 }
diff --git a/adapters/fparkan-render-vulkan/src/ffi/tests.rs b/adapters/fparkan-render-vulkan/src/ffi/tests.rs
index 740c13d..b8a3d71 100644
--- a/adapters/fparkan-render-vulkan/src/ffi/tests.rs
+++ b/adapters/fparkan-render-vulkan/src/ffi/tests.rs
@@ -386,13 +386,13 @@ fn static_surface_extension_name_is_decoded() {
 }
 
 #[test]
-fn swapchain_plan_prefers_srgb_mailbox_and_clamps_extent() {
+fn swapchain_plan_prefers_unorm_mailbox_and_clamps_extent() {
     let plan = plan_vulkan_swapchain(&swapchain_request()).expect("swapchain plan");
 
     assert_eq!(
         plan.format,
         VulkanSurfaceFormat {
-            format: vk::Format::B8G8R8A8_SRGB.as_raw(),
+            format: vk::Format::R8G8B8A8_UNORM.as_raw(),
             color_space: vk::ColorSpaceKHR::SRGB_NONLINEAR.as_raw(),
         }
     );
@@ -444,7 +444,7 @@ fn swapchain_plan_accepts_undefined_surface_format_by_picking_stage0_default() {
     assert_eq!(
         plan.format,
         VulkanSurfaceFormat {
-            format: vk::Format::B8G8R8A8_SRGB.as_raw(),
+            format: vk::Format::R8G8B8A8_UNORM.as_raw(),
             color_space: vk::ColorSpaceKHR::SRGB_NONLINEAR.as_raw(),
         }
     );
@@ -480,6 +480,66 @@ fn checked_in_shaders_have_valid_spirv_containers() {
 }
 
 #[test]
+fn fragment_shader_dispatches_all_four_material_modes() {
+    let fragment = include_str!("../../shaders/triangle.frag");
+    assert!(fragment.contains("int mode = int(round(material.material_mode));"));
+    assert!(fragment.contains("mode == 0"));
+    assert!(fragment.contains("mode == 1"));
+    assert!(fragment.contains("mode == 2"));
+    assert!(fragment.contains("mode == 3"));
+    assert!(!fragment.contains("material_mode > 1.5"));
+    assert!(!fragment.contains("material_mode > 2.5"));
+}
+
+#[test]
+fn native_specular_reference_uses_squared_power_and_total_overflow_curve() {
+    fn reference_power(cosine: f32, power: u8) -> f32 {
+        if power == 0 {
+            return 0.0;
+        }
+        let mut result = cosine;
+        for _ in 0..power.saturating_sub(1) {
+            result *= result;
+        }
+        result
+    }
+    fn reference_curve(value: f32) -> f32 {
+        if value <= 1.0 {
+            0.8 * value
+        } else if value <= 3.0 {
+            0.1 * value + 0.7
+        } else {
+            1.0
+        }
+    }
+
+    assert_eq!(reference_power(0.5, 0), 0.0);
+    assert!((reference_power(0.5, 1) - 0.5).abs() < 1e-6);
+    assert!((reference_power(0.5, 2) - 0.25).abs() < 1e-6);
+    assert!((reference_power(0.5, 3) - 0.0625).abs() < 1e-6);
+    let compressed_diffuse = 1.5;
+    let material_specular = 0.75;
+    assert!((reference_curve(material_specular + (compressed_diffuse - 1.0)) - 0.825).abs() < 1e-6);
+
+    let vertex = include_str!("../../shaders/triangle.vert");
+    assert!(vertex.contains("result *= result;"));
+    assert!(
+        vertex.contains("vec3 total_specular = specular + max(compressed - vec3(1.0), vec3(0.0));")
+    );
+    assert!(vertex.contains("if (power <= 0.0 || cosine <= 0.0)"));
+}
+
+#[test]
+fn shader_computes_radial_fog_per_vertex_and_interpolates_it() {
+    let vertex = include_str!("../../shaders/triangle.vert");
+    let fragment = include_str!("../../shaders/triangle.frag");
+    assert!(vertex.contains("out_fog_factor = native_fog_factor(in_position);"));
+    assert!(fragment.contains("layout(location = 4) in float in_fog_factor;"));
+    assert!(!fragment.contains("distance(in_world_position"));
+    assert!(!fragment.contains("float fog_factor()"));
+}
+
+#[test]
 fn shader_container_rejects_invalid_spirv() {
     assert_eq!(
         validate_spirv_container("triangle.vert", &[0xFFFF_FFFF, SPIRV_VERSION_1_0, 0, 1, 0]),
diff --git a/adapters/fparkan-render-vulkan/src/policy.rs b/adapters/fparkan-render-vulkan/src/policy.rs
index ce7b59e..e1f01c8 100644
--- a/adapters/fparkan-render-vulkan/src/policy.rs
+++ b/adapters/fparkan-render-vulkan/src/policy.rs
@@ -458,9 +458,24 @@ fn select_surface_format(
         .iter()
         .copied()
         .find(|format| {
-            format.format == vk::Format::B8G8R8A8_SRGB.as_raw()
+            format.format == vk::Format::R8G8B8A8_UNORM.as_raw()
                 && format.color_space == vk::ColorSpaceKHR::SRGB_NONLINEAR.as_raw()
         })
+        .or_else(|| {
+            formats.iter().copied().find(|format| {
+                format.format == vk::Format::B8G8R8A8_UNORM.as_raw()
+                    && format.color_space == vk::ColorSpaceKHR::SRGB_NONLINEAR.as_raw()
+            })
+        })
+        // Keep an sRGB attachment as the final compatibility fallback.  The
+        // fragment shader emits legacy byte-equivalent linear values, so an
+        // UNORM attachment is preferred whenever the surface exposes one.
+        .or_else(|| {
+            formats.iter().copied().find(|format| {
+                format.format == vk::Format::B8G8R8A8_SRGB.as_raw()
+                    && format.color_space == vk::ColorSpaceKHR::SRGB_NONLINEAR.as_raw()
+            })
+        })
         .or_else(|| formats.first().copied())
         .ok_or(VulkanSwapchainError::MissingSurfaceFormat)
 }
@@ -470,7 +485,7 @@ fn undefined_surface_format_override(
 ) -> Option<VulkanSurfaceFormat> {
     match formats {
         [format] if format.format == vk::Format::UNDEFINED.as_raw() => Some(VulkanSurfaceFormat {
-            format: vk::Format::B8G8R8A8_SRGB.as_raw(),
+            format: vk::Format::R8G8B8A8_UNORM.as_raw(),
             color_space: format.color_space,
         }),
         _ => None,