diff options
Diffstat (limited to 'adapters/fparkan-render-vulkan/shaders/triangle.frag')
| -rw-r--r-- | adapters/fparkan-render-vulkan/shaders/triangle.frag | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/adapters/fparkan-render-vulkan/shaders/triangle.frag b/adapters/fparkan-render-vulkan/shaders/triangle.frag index 6a6e752..2c71278 100644 --- a/adapters/fparkan-render-vulkan/shaders/triangle.frag +++ b/adapters/fparkan-render-vulkan/shaders/triangle.frag @@ -9,12 +9,15 @@ 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 = 9) in vec3 in_world_position; 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(set = 1, binding = 0) uniform sampler2D reflection_color; +layout(set = 1, binding = 1) uniform sampler2D embm_bump; layout(std140, set = 0, binding = 4) uniform FrameConstants { mat4 clip_from_world; @@ -28,6 +31,8 @@ layout(std140, set = 0, binding = 4) uniform FrameConstants { vec4 fog_color; vec4 fog_distances; vec4 camera_position; + vec4 embm_bounds; + vec4 embm_wave; } frame; layout(push_constant) uniform MaterialConstants { @@ -66,6 +71,34 @@ layout(push_constant) uniform MaterialConstants { } material; void main() { + int mode = int(round(material.material_mode)); + if ((mode & 32) != 0 && (mode & 4) == 0 && in_world_position.z < frame.camera_position.w) { + discard; + } + if ((mode & 64) != 0) { + vec2 reflection_uv = gl_FragCoord.xy / vec2(textureSize(reflection_color, 0)); + vec2 span = frame.embm_bounds.zw - frame.embm_bounds.xy; + vec2 plane_uv = vec2(1.0) - (in_world_position.yx - frame.embm_bounds.yx) / span.yx; + vec2 bump_uv = plane_uv * frame.embm_wave.y + frame.embm_wave.x; + vec2 duv = max(vec2(-1.0), (texture(embm_bump, bump_uv).rg * 255.0 - 128.0) / 127.0); + vec2 displacement = duv * frame.embm_wave.zw; + if ((mode & 128) != 0) { + reflection_uv = plane_uv + displacement; + } else { + // shortcut: non-perspective API cameras retain the projective mirror fallback. + vec3 displaced_world = in_world_position - vec3(displacement.yx * span, 0.0); + vec4 displaced_clip = frame.clip_from_world * vec4(displaced_world, 1.0); + if (displaced_clip.w > 0.000001) { + reflection_uv = displaced_clip.xy / displaced_clip.w * 0.5 + 0.5; + } + } + vec3 rgb = texture(reflection_color, reflection_uv).rgb * in_base_diffuse + in_base_specular; + out_color = vec4(mix(rgb * in_color, frame.fog_color.rgb, in_fog_factor), material.diffuse_alpha); + if (out_color.a < material.alpha_cutoff) { + discard; + } + return; + } 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) @@ -78,7 +111,6 @@ void main() { 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 |