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38 行
1.7 KiB
38 行
1.7 KiB
#include "../ShaderLibrary/BC6H.hlsl"
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Texture2D<float4> _Source;
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RWTexture2D<uint4> _Target;
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#pragma kernel KEncodeFast
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[numthreads(4, 4, 1)]
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void KEncodeFast(uint2 groupId : SV_GroupID, uint2 groupThreadId : SV_GroupThreadID, uint2 dispatchThreadId : SV_DispatchThreadID)
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{
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// Load 4x4 pixel block
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float3 texels[16];
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uint2 topLeftSourceID = dispatchThreadId << 2;
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texels[0] = _Source.Load(uint3(topLeftSourceID , 0)).rgb;
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texels[1] = _Source.Load(uint3(topLeftSourceID + uint2(1, 0), 0)).rgb;
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texels[2] = _Source.Load(uint3(topLeftSourceID + uint2(2, 0), 0)).rgb;
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texels[3] = _Source.Load(uint3(topLeftSourceID + uint2(3, 0), 0)).rgb;
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texels[4] = _Source.Load(uint3(topLeftSourceID + uint2(0, 1), 0)).rgb;
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texels[5] = _Source.Load(uint3(topLeftSourceID + uint2(1, 1), 0)).rgb;
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texels[6] = _Source.Load(uint3(topLeftSourceID + uint2(2, 1), 0)).rgb;
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texels[7] = _Source.Load(uint3(topLeftSourceID + uint2(3, 1), 0)).rgb;
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texels[8] = _Source.Load(uint3(topLeftSourceID + uint2(0, 2), 0)).rgb;
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texels[9] = _Source.Load(uint3(topLeftSourceID + uint2(1, 2), 0)).rgb;
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texels[10] = _Source.Load(uint3(topLeftSourceID + uint2(2, 2), 0)).rgb;
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texels[11] = _Source.Load(uint3(topLeftSourceID + uint2(3, 2), 0)).rgb;
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texels[12] = _Source.Load(uint3(topLeftSourceID + uint2(0, 3), 0)).rgb;
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texels[13] = _Source.Load(uint3(topLeftSourceID + uint2(1, 3), 0)).rgb;
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texels[14] = _Source.Load(uint3(topLeftSourceID + uint2(2, 3), 0)).rgb;
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texels[15] = _Source.Load(uint3(topLeftSourceID + uint2(3, 3), 0)).rgb;
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uint4 block = uint4(0, 0, 0, 0);
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float blockMSLE = 0;
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EncodeMode11(block, blockMSLE, texels);
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_Target[dispatchThreadId] = block;
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}
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