65 lines
2.0 KiB
Plaintext
65 lines
2.0 KiB
Plaintext
import Common;
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import VertexData;
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import MaterialParameter;
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struct StaticMeshVertexData
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{
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float uint16ToFloat(uint16_t value)
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{
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return value / 65535.0f;
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}
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float3 xAxis( float4 qQuat )
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{
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float fTy = 2.0 * qQuat.y;
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float fTz = 2.0 * qQuat.z;
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float fTwy = fTy * qQuat.w;
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float fTwz = fTz * qQuat.w;
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float fTxy = fTy * qQuat.x;
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float fTxz = fTz * qQuat.x;
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float fTyy = fTy * qQuat.y;
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float fTzz = fTz * qQuat.z;
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return float3( 1.0-(fTyy+fTzz), fTxy+fTwz, fTxz-fTwy );
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}
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float3 yAxis( float4 qQuat )
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{
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float fTx = 2.0 * qQuat.x;
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float fTy = 2.0 * qQuat.y;
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float fTz = 2.0 * qQuat.z;
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float fTwx = fTx * qQuat.w;
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float fTwz = fTz * qQuat.w;
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float fTxx = fTx * qQuat.x;
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float fTxy = fTy * qQuat.x;
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float fTyz = fTz * qQuat.y;
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float fTzz = fTz * qQuat.z;
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return float3( fTxy-fTwz, 1.0-(fTxx+fTzz), fTyz+fTwx );
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}
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VertexAttributes getAttributes(uint index)
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{
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VertexAttributes attributes;
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attributes.position_MS = float3(positions[index * 3 + 0], positions[index * 3 + 1], positions[index * 3 + 2]);
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#ifndef POS_ONLY
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float4 qtangent = normalize(qtangents[index]);
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attributes.normal_MS = xAxis(qtangent);
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attributes.tangent_MS = yAxis(qtangent);
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float biNormalReflection = sign(qtangents[index].w);
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attributes.biTangent_MS = cross(attributes.normal_MS, attributes.tangent_MS) * biNormalReflection;
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for(uint i = 0; i < MAX_TEXCOORDS; ++i)
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{
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attributes.texCoords[i] = float2(uint16ToFloat(texCoords[i][index * 2 + 0]), uint16ToFloat(texCoords[i][index * 2 + 1]));
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}
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attributes.vertexColor = float3(color[index * 3 + 0], color[index * 3 + 1] , color[index * 3 + 2]);
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#endif
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return attributes;
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}
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StructuredBuffer<float> positions;
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StructuredBuffer<float4> qtangents;
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StructuredBuffer<uint16_t> color;
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StructuredBuffer<uint16_t> texCoords[MAX_TEXCOORDS];
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};
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layout(set=1)
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ParameterBlock<StaticMeshVertexData> pVertexData;
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