Luis Gonzalez
42 lines
1.7 KiB
HLSL
42 lines
1.7 KiB
HLSL
#ifndef MAKE_SKIN_MATRICES_HLSL_
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#define MAKE_SKIN_MATRICES_HLSL_
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/////////////////////////////////////////////////////////////////////////////////
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RWByteAddressBuffer outSkinMatrices;
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StructuredBuffer<BoneTransform> rigSpaceBoneTransformsBuf;
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StructuredBuffer<SkinnedMeshWorkload> skinMatrixWorkloadBuf;
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ByteAddressBuffer skinnedMeshBoneData;
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uint totalSkinnedMeshes;
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/////////////////////////////////////////////////////////////////////////////////
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[numthreads(128, 1, 1)]
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void ComputeSkinMatrices(uint tid: SV_DispatchThreadID)
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{
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if (tid >= totalSkinnedMeshes)
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return;
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CHECK_STRUCTURED_BUFFER_OUT_OF_BOUNDS(RUKHANKADEBUGMARKERS_GPUANIMATOR_COMPUTE_SKIN_MATRICES_SKIN_MATRIX_WORKLOAD_READ, tid, skinMatrixWorkloadBuf);
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SkinnedMeshWorkload smw = skinMatrixWorkloadBuf[tid];
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float4x4 w2l = smw.skinnedRootBoneToEntityTransform;
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for (int i = 0; i < smw.skinMatricesCount; ++i)
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{
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SkinnedMeshBone smb = SkinnedMeshBone::ReadFromRawBuffer(skinnedMeshBoneData, smw.boneRemapTableIndex + i);
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int boneTransformIndex = smb.boneRemapIndex + smw.animatedBoneIndexOffset;
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CHECK_STRUCTURED_BUFFER_OUT_OF_BOUNDS(RUKHANKADEBUGMARKERS_GPUANIMATOR_COMPUTE_SKIN_MATRICES_RIG_SPACE_BONE_TRANSFORMS_READ, boneTransformIndex, rigSpaceBoneTransformsBuf);
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BoneTransform bt = rigSpaceBoneTransformsBuf[boneTransformIndex];
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float4x4 skinMatrix = bt.ToFloat4x4();
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skinMatrix = mul(w2l, skinMatrix);
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float4x4 outSkinMatrix = mul(skinMatrix, smb.bindPose);
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int skinMatrixOutIndex = smw.skinMatrixBaseOutIndex + i;
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SkinMatrix::WriteToRawBuffer(outSkinMatrices, (float3x4)outSkinMatrix, skinMatrixOutIndex);
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}
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}
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#endif //MAKE_SKIN_MATRICES_HLSL_
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