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MSTRINGIFY(
cbuffer OutputToVertexArrayCB : register( b0 )
{
int startNode;
int numNodes;
int positionOffset;
int positionStride;
int normalOffset;
int normalStride;
int padding1;
int padding2;
};
StructuredBuffer<float4> g_vertexPositions : register( t0 );
StructuredBuffer<float4> g_vertexNormals : register( t1 );
RWBuffer<float> g_vertexBuffer : register( u0 );
[numthreads(128, 1, 1)]
void
OutputToVertexArrayWithNormalsKernel( uint3 Gid : SV_GroupID, uint3 DTid : SV_DispatchThreadID, uint3 GTid : SV_GroupThreadID, uint GI : SV_GroupIndex )
{
int nodeID = DTid.x;
if( nodeID < numNodes )
{
float4 position = g_vertexPositions[nodeID + startNode];
float4 normal = g_vertexNormals[nodeID + startNode];
// Stride should account for the float->float4 conversion
int positionDestination = nodeID * positionStride + positionOffset;
g_vertexBuffer[positionDestination] = position.x;
g_vertexBuffer[positionDestination+1] = position.y;
g_vertexBuffer[positionDestination+2] = position.z;
int normalDestination = nodeID * normalStride + normalOffset;
g_vertexBuffer[normalDestination] = normal.x;
g_vertexBuffer[normalDestination+1] = normal.y;
g_vertexBuffer[normalDestination+2] = normal.z;
}
}
[numthreads(128, 1, 1)]
void
OutputToVertexArrayWithoutNormalsKernel( uint3 Gid : SV_GroupID, uint3 DTid : SV_DispatchThreadID, uint3 GTid : SV_GroupThreadID, uint GI : SV_GroupIndex )
{
int nodeID = DTid.x;
if( nodeID < numNodes )
{
float4 position = g_vertexPositions[nodeID + startNode];
float4 normal = g_vertexNormals[nodeID + startNode];
// Stride should account for the float->float4 conversion
int positionDestination = nodeID * positionStride + positionOffset;
g_vertexBuffer[positionDestination] = position.x;
g_vertexBuffer[positionDestination+1] = position.y;
g_vertexBuffer[positionDestination+2] = position.z;
}
}
);
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