37 lines
No EOL
1.1 KiB
Text
37 lines
No EOL
1.1 KiB
Text
include "pipelines/common.glsl"
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compute_shader [[
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layout(std140, binding = 4) uniform Data {
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vec2 u_size;
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vec2 padding;
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float u_current_frame_weight;
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};
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layout(local_size_x = 16, local_size_y = 16, local_size_z = 1) in;
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layout (binding = 0) uniform sampler2D u_history;
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layout (binding = 1) uniform sampler2D u_depthbuf;
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layout (rgba8, binding = 0) uniform image2D u_gbuffer2;
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layout (r8, binding = 1) uniform image2D u_sss;
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void main()
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{
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ivec2 ij = ivec2(gl_GlobalInvocationID.xy);
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if (any(greaterThanEqual(ij, ivec2(u_size.xy)))) return;
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float depth = texelFetch(u_depthbuf, ij, 0).x;
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vec2 uv = (vec2(ij) + 0.5) / u_size.xy;
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vec2 uv_prev = cameraReproject(uv, depth);
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float current = imageLoad(u_sss, ij).x;
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if (all(lessThan(uv_prev, vec2(1))) && all(greaterThan(uv_prev, vec2(0)))) {
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float prev = texture(u_history, uv_prev).x;
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current = mix(prev, current, u_current_frame_weight);
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imageStore(u_sss, ij, vec4(current));
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}
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vec4 gb2v = imageLoad(u_gbuffer2, ij);
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gb2v.w = min(current, gb2v.w);
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imageStore(u_gbuffer2, ij, gb2v);
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}
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]] |