mirror of
https://github.com/Kelsidavis/WoWee.git
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52317d1edd
Full FSR 2.2 pipeline with depth-based motion vector reprojection, temporal accumulation with YCoCg neighborhood clamping, and RCAS contrast-adaptive sharpening. Architecture (designed for FSR 3.x frame generation readiness): - Camera: Halton(2,3) sub-pixel jitter with unjittered projection stored separately for motion vector computation - Motion vectors: compute shader reconstructs world position from depth + inverse VP, reprojects with previous frame's VP - Temporal accumulation: compute shader blends 5-10% current frame with 90-95% clamped history, adaptive blend for disocclusion - History: ping-pong R16G16B16A16 buffers at display resolution - Sharpening: RCAS fragment pass with contrast-adaptive weights Integration: - FSR2 replaces both FSR1 and MSAA when enabled - Scene renders to internal resolution framebuffer (no MSAA) - Compute passes run between scene and swapchain render passes - Camera cut detection resets history on teleport - Quality presets shared with FSR1 (0.50-0.77 scale factors) - UI: "Upscaling" combo with Off/FSR 1.0/FSR 2.2 options
44 lines
1.6 KiB
GLSL
44 lines
1.6 KiB
GLSL
#version 450
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layout(local_size_x = 8, local_size_y = 8) in;
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layout(set = 0, binding = 0) uniform sampler2D depthBuffer;
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layout(set = 0, binding = 1, rg16f) uniform writeonly image2D motionVectors;
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layout(push_constant) uniform PushConstants {
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mat4 invViewProj; // Inverse of current jittered VP
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mat4 prevViewProj; // Previous frame unjittered VP
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vec4 resolution; // xy = internal size, zw = 1/internal size
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vec4 jitterOffset; // xy = current jitter (NDC), zw = previous jitter
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} pc;
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void main() {
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ivec2 pixelCoord = ivec2(gl_GlobalInvocationID.xy);
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ivec2 imgSize = ivec2(pc.resolution.xy);
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if (pixelCoord.x >= imgSize.x || pixelCoord.y >= imgSize.y) return;
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// Sample depth (Vulkan: 0 = near, 1 = far)
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float depth = texelFetch(depthBuffer, pixelCoord, 0).r;
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// Pixel center in NDC [-1, 1]
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vec2 uv = (vec2(pixelCoord) + 0.5) * pc.resolution.zw;
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vec2 ndc = uv * 2.0 - 1.0;
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// Reconstruct world position from depth
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vec4 clipPos = vec4(ndc, depth, 1.0);
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vec4 worldPos = pc.invViewProj * clipPos;
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worldPos /= worldPos.w;
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// Project into previous frame's clip space (unjittered)
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vec4 prevClip = pc.prevViewProj * worldPos;
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vec2 prevNdc = prevClip.xy / prevClip.w;
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vec2 prevUV = prevNdc * 0.5 + 0.5;
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// Remove jitter from current UV to get unjittered position
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vec2 unjitteredUV = uv - pc.jitterOffset.xy * 0.5;
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// Motion = previous position - current unjittered position (in UV space)
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vec2 motion = prevUV - unjitteredUV;
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imageStore(motionVectors, pixelCoord, vec4(motion, 0.0, 0.0));
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}
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