GoaLitiuM/FlaxEngine
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Various optimizations

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This commit is contained in:
Wojtek Figat
2025-08-06 18:48:18 +02:00
parent a5838f739d
commit cf9c203855
12 changed files with 22 additions and 16 deletions
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10
Source/Engine/Renderer/Utils/BitonicSort.cpp
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@@ -6,8 +6,6 @@
#include "Engine/Graphics/GPUContext.h"
#include "Engine/Graphics/GPULimits.h"
#define INDIRECT_ARGS_STRIDE 12
// The sorting keys buffer item structure template. Matches the shader type.
struct Item
{
@@ -39,7 +37,7 @@ bool BitonicSort::Init()
// Create indirect dispatch arguments buffer
_dispatchArgsBuffer = GPUDevice::Instance->CreateBuffer(TEXT("BitonicSortDispatchArgs"));
if (_dispatchArgsBuffer->Init(GPUBufferDescription::Raw(22 * 23 / 2 * INDIRECT_ARGS_STRIDE, GPUBufferFlags::Argument | GPUBufferFlags::UnorderedAccess)))
if (_dispatchArgsBuffer->Init(GPUBufferDescription::Raw(22 * 23 / 2 * sizeof(GPUDispatchIndirectArgs), GPUBufferFlags::Argument | GPUBufferFlags::UnorderedAccess)))
return true;
// Load asset
@@ -122,7 +120,7 @@ void BitonicSort::Sort(GPUContext* context, GPUBuffer* sortingKeysBuffer, GPUBuf
// We have already pre-sorted up through k = 2048 when first writing our list, so we continue sorting with k = 4096
// For really large values of k, these indirect dispatches will be skipped over with thread counts of 0
uint32 indirectArgsOffset = INDIRECT_ARGS_STRIDE;
uint32 indirectArgsOffset = sizeof(GPUDispatchIndirectArgs);
for (uint32 k = 4096; k <= alignedMaxNumElements; k *= 2)
{
for (uint32 j = k / 2; j >= 2048; j /= 2)
@@ -133,11 +131,11 @@ void BitonicSort::Sort(GPUContext* context, GPUBuffer* sortingKeysBuffer, GPUBuf
context->BindCB(0, _cb);
context->DispatchIndirect(_outerSortCS, _dispatchArgsBuffer, indirectArgsOffset);
indirectArgsOffset += INDIRECT_ARGS_STRIDE;
indirectArgsOffset += sizeof(GPUDispatchIndirectArgs);
}
context->DispatchIndirect(_innerSortCS, _dispatchArgsBuffer, indirectArgsOffset);
indirectArgsOffset += INDIRECT_ARGS_STRIDE;
indirectArgsOffset += sizeof(GPUDispatchIndirectArgs);
}
context->ResetUA();