You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
33 lines
931 B
33 lines
931 B
|
|
|
|
#define GROUP_SIZE 128
|
|
#define ITEMS_PER_THREAD 48
|
|
|
|
int _InputPosBufferCount;
|
|
int _InputBaseVertex;
|
|
int _InputPosBufferStride;
|
|
int _InputPosBufferOffset;
|
|
int _OutputPosBufferOffset;
|
|
|
|
ByteAddressBuffer _InputPosBuffer;
|
|
RWStructuredBuffer<uint> _OutputPosBuffer;
|
|
|
|
#pragma kernel CopyVertexBuffer
|
|
[numthreads(GROUP_SIZE, 1, 1)]
|
|
void CopyVertexBuffer(uint gidx : SV_DispatchThreadID)
|
|
{
|
|
for (int i = 0; i < ITEMS_PER_THREAD; ++i)
|
|
{
|
|
int offset = gidx * ITEMS_PER_THREAD + i;
|
|
if (offset >= _InputPosBufferCount)
|
|
return;
|
|
|
|
uint inputAddr = _InputPosBufferOffset + (_InputBaseVertex + offset) * _InputPosBufferStride;
|
|
uint3 val = _InputPosBuffer.Load3(inputAddr << 2);
|
|
|
|
uint outputAddr = _OutputPosBufferOffset + 3 * offset;
|
|
_OutputPosBuffer[outputAddr] = val.x;
|
|
_OutputPosBuffer[outputAddr + 1] = val.y;
|
|
_OutputPosBuffer[outputAddr + 2] = val.z;
|
|
}
|
|
}
|