public RayIntersections(string name, uint maxCount, int deviceIndex) : base(name)
{
MaxRayCount = maxCount;
RayBuffer = new StreamableBuffer(name + "_rays", maxCount * RaySize, BufferUsage.Storage);
rayBufferPtr = RayBuffer.LocalBuffer.GetRayDevicePointer(0);
HitBuffer = new StreamableBuffer(name + "_hits", maxCount * HitSize, BufferUsage.Storage);
resultBufferPtr = HitBuffer.LocalBuffer.GetRayDevicePointer(0);
//Allocate the necessary memory
unsafe
{
ulong scratchSz = 0;
if (rrGetTraceMemoryRequirements(GraphicsDevice.DeviceInformation[deviceIndex].RaysContext, maxCount, &scratchSz) != RRError.RrSuccess)
{
throw new Exception("Failed to determine trace memory requirements.");
}
ScratchBuffer = new GpuBuffer(name + "_scratch")
{
MemoryUsage = MemoryUsage.GpuOnly,
Size = scratchSz,
Usage = BufferUsage.Storage | BufferUsage.TransferDst
};
ScratchBuffer.Build(deviceIndex);
scratchBufferPtr = ScratchBuffer.GetRayDevicePointer(0);
}
}
public IndexedRenderQueue(string name, int max_cnt, IndexType idxType)
{
draws = new List <DrawData>();
this.idxType = idxType;
maxDraws = max_cnt;
IndirectBuffer = new StreamableBuffer(name, (ulong)(max_cnt * 16 + 4) * sizeof(uint), BufferUsage.Indirect | BufferUsage.Storage);
}