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-rw-r--r--adapters/fparkan-render-vulkan/src/asset_mesh.rs934
1 files changed, 901 insertions, 33 deletions
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]
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