forked from BilalY/Rasagar
127 lines
4.2 KiB
Plaintext
127 lines
4.2 KiB
Plaintext
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#pragma kernel MainUpdateIndexBuffer16
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#pragma kernel MainUpdateIndexBuffer32
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#pragma kernel MainUpdateVertexBuffer
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#include "GeometryPoolDefs.cs.hlsl"
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#include "GeometryPool.hlsl"
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#pragma multi_compile UV0_DIM2 UV0_DIM3 UV0_DIM4
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#pragma multi_compile UV1_DIM2 UV1_DIM3 UV1_DIM4
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//#pragma enable_d3d11_debug_symbols
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#define GROUP_SIZE_X 256
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#define GROUP_SIZE_X_HALF (GROUP_SIZE_X >> 1)
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int _DispatchIndexOffset;
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int _InputIBBaseOffset;
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int _InputIBCount;
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int _InputFirstVertex;
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int _OutputIBOffset;
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ByteAddressBuffer _InputIndexBuffer;
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RWStructuredBuffer<uint> _OutputIndexBuffer;
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[numthreads(GROUP_SIZE_X,1,1)]
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void MainUpdateIndexBuffer32(uint3 dispatchThreadID : SV_DispatchThreadID, int3 groupID : SV_GroupID)
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{
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uint bufferOffset = _DispatchIndexOffset + dispatchThreadID.x;
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if (bufferOffset >= (uint)_InputIBCount)
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return;
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uint indexVal = _InputIndexBuffer.Load((_InputIBBaseOffset + bufferOffset) << 2u);
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_OutputIndexBuffer[(uint)_OutputIBOffset + bufferOffset] = indexVal - _InputFirstVertex;
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}
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groupshared uint _ldsIndexCache[GROUP_SIZE_X_HALF + 1];
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[numthreads(GROUP_SIZE_X,1,1)]
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void MainUpdateIndexBuffer16(uint3 dispatchThreadID : SV_DispatchThreadID, uint groupIndex : SV_GroupIndex, uint3 groupID : SV_GroupID)
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{
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if (groupIndex < (GROUP_SIZE_X_HALF + 1))
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_ldsIndexCache[groupIndex] = _InputIndexBuffer.Load((GROUP_SIZE_X_HALF * (groupID.x) + groupIndex + (uint)(_InputIBBaseOffset + _DispatchIndexOffset) / 2) << 2u);
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GroupMemoryBarrierWithGroupSync();
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uint bufferOffset = _DispatchIndexOffset + dispatchThreadID.x;
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if (bufferOffset >= (uint)_InputIBCount)
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return;
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uint localOffset = groupIndex + ((_InputIBBaseOffset + _DispatchIndexOffset) & 0x1);
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uint pair = _ldsIndexCache[localOffset >> 1u];
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uint value = (localOffset & 0x1) ? (pair >> 16) : (pair & 0xffff);
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_OutputIndexBuffer[(uint)_OutputIBOffset + bufferOffset] = value - _InputFirstVertex;
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}
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int _InputVBCount;
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int _InputBaseVertexOffset;
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int _DispatchVertexOffset;
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int _OutputVBSize;
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int _OutputVBOffset;
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int _InputPosBufferStride;
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int _InputPosBufferOffset;
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int _InputUv0BufferStride;
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int _InputUv0BufferOffset;
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int _InputUv1BufferStride;
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int _InputUv1BufferOffset;
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int _InputNormalBufferStride;
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int _InputNormalBufferOffset;
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ByteAddressBuffer _PosBuffer;
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ByteAddressBuffer _Uv0Buffer;
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ByteAddressBuffer _Uv1Buffer;
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ByteAddressBuffer _NormalBuffer;
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RWStructuredBuffer<uint> _OutputVB;
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int _AttributesMask;
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[numthreads(GROUP_SIZE_X, 1, 1)]
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void MainUpdateVertexBuffer(uint3 dispatchThreadID : SV_DispatchThreadID)
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{
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int inputVertexOffset = _DispatchVertexOffset + (int)dispatchThreadID.x;
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if ((int)inputVertexOffset >= _InputVBCount)
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return;
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inputVertexOffset += _InputBaseVertexOffset;
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GeoPoolVertex vtx = (GeoPoolVertex)0;
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if (_AttributesMask & GEOPOOLVERTEXATTRIBS_POSITION)
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vtx.pos = asfloat(_PosBuffer.Load3(_InputPosBufferOffset + (inputVertexOffset * _InputPosBufferStride)));
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if (_AttributesMask & GEOPOOLVERTEXATTRIBS_UV0)
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{
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#if UV0_DIM2
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vtx.uv0.xy = asfloat(_Uv0Buffer.Load2(_InputUv0BufferOffset + (inputVertexOffset * _InputUv0BufferStride)));
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#elif UV0_DIM3
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vtx.uv0.xyz = asfloat(_Uv0Buffer.Load3(_InputUv0BufferOffset + (inputVertexOffset * _InputUv0BufferStride)));
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#elif UV0_DIM4
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vtx.uv0 = asfloat(_Uv0Buffer.Load4(_InputUv0BufferOffset + (inputVertexOffset * _InputUv0BufferStride)));
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#endif
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}
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if (_AttributesMask & GEOPOOLVERTEXATTRIBS_UV1)
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{
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#if UV1_DIM2
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vtx.uv1.xy = asfloat(_Uv1Buffer.Load2(_InputUv1BufferOffset + (inputVertexOffset * _InputUv1BufferStride)));
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#elif UV1_DIM3
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vtx.uv1.xyz = asfloat(_Uv1Buffer.Load3(_InputUv1BufferOffset + (inputVertexOffset * _InputUv1BufferStride)));
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#elif UV1_DIM4
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vtx.uv1 = asfloat(_Uv1Buffer.Load4(_InputUv1BufferOffset + (inputVertexOffset * _InputUv1BufferStride)));
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#endif
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}
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if (_AttributesMask & GEOPOOLVERTEXATTRIBS_NORMAL)
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vtx.N = asfloat(_NormalBuffer.Load3(_InputNormalBufferOffset + (inputVertexOffset * _InputNormalBufferStride)));
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uint outputVertexOffset = _DispatchVertexOffset + (int)dispatchThreadID.x;
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GeometryPool::StoreVertex(_OutputVBOffset + outputVertexOffset, vtx, _OutputVBSize, _OutputVB);
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}
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