turanszkij
110 lines
2.2 KiB
HLSL
110 lines
2.2 KiB
HLSL
#ifndef _POSTPROCESS_HF_
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#define _POSTPROCESS_HF_
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#include "imageHF.hlsli"
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#include "packHF.hlsli"
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#include "depthConvertHF.hlsli"
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float2 GetVelocity(in int2 pixel)
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{
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#ifdef DILATE_VELOCITY_BEST_3X3 // search best velocity in 3x3 neighborhood
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float bestDepth = 1;
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int2 bestPixel = int2(0, 0);
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[unroll]
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for (int i = -1; i <= 1; ++i)
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{
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[unroll]
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for (int j = -1; j <= 1; ++j)
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{
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int2 curPixel = pixel + int2(i, j);
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float depth = texture_lineardepth[curPixel];
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[flatten]
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if (depth < bestDepth)
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{
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bestDepth = depth;
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bestPixel = curPixel;
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}
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}
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}
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return texture_gbuffer1[bestPixel].zw;
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#elif defined DILATE_VELOCITY_BEST_FAR // search best velocity in a far reaching 5-tap pattern
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float bestDepth = 1;
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int2 bestPixel = int2(0, 0);
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// top-left
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int2 curPixel = pixel + int2(-2, -2);
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float depth = texture_lineardepth[curPixel];
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[flatten]
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if (depth < bestDepth)
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{
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bestDepth = depth;
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bestPixel = curPixel;
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}
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// top-right
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curPixel = pixel + int2(2, -2);
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depth = texture_lineardepth[curPixel];
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[flatten]
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if (depth < bestDepth)
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{
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bestDepth = depth;
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bestPixel = curPixel;
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}
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// bottom-right
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curPixel = pixel + int2(2, 2);
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depth = texture_lineardepth[curPixel];
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[flatten]
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if (depth < bestDepth)
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{
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bestDepth = depth;
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bestPixel = curPixel;
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}
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// bottom-left
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curPixel = pixel + int2(-2, 2);
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depth = texture_lineardepth[curPixel];
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[flatten]
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if (depth < bestDepth)
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{
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bestDepth = depth;
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bestPixel = curPixel;
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}
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// center
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curPixel = pixel;
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depth = texture_lineardepth[curPixel];
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[flatten]
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if (depth < bestDepth)
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{
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bestDepth = depth;
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bestPixel = curPixel;
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}
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return texture_gbuffer1[bestPixel].zw;
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#elif defined DILATE_VELOCITY_AVG_FAR
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float2 velocity_TL = texture_gbuffer1[pixel + int2(-2, -2)].zw;
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float2 velocity_TR = texture_gbuffer1[pixel + int2(2, -2)].zw;
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float2 velocity_BL = texture_gbuffer1[pixel + int2(-2, 2)].zw;
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float2 velocity_BR = texture_gbuffer1[pixel + int2(2, 2)].zw;
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float2 velocity_CE = texture_gbuffer1[pixel].zw;
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return (velocity_TL + velocity_TR + velocity_BL + velocity_BR + velocity_CE) / 5.0f;
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#else
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return texture_gbuffer1[pixel].zw;
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#endif // DILATE_VELOCITY
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}
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#endif // _POSTPROCESS_HF_
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