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Add direct dispatch for Bitonic Sort when using small input buffer

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This commit is contained in:
Wojtek Figat
2025-08-08 17:03:39 +02:00
parent 0ea555b041
commit 519a9c0a14
5 changed files with 66 additions and 52 deletions
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Source/Engine/Particles/Particles.cpp
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@@ -940,8 +940,7 @@ void DrawEmittersGPU(RenderContextBatch& renderContextBatch)
const auto sortMode = (ParticleSortMode)module->Values[2].AsInt;
bool sortAscending = sortMode == ParticleSortMode::CustomAscending;
BitonicSort::Instance()->Sort(context, draw.Buffer->GPU.SortingKeysBuffer, draw.Buffer->GPU.Buffer, draw.Buffer->GPU.ParticleCounterOffset, sortAscending, draw.Buffer->GPU.SortedIndices, draw.Buffer->GPU.ParticlesCountMax);
// TODO: split sorted keys copy with another loop to give time for UAV transition
// TODO: use args buffer from GPUIndirectArgsBuffer instead of internal from BitonicSort to get rid of UAV barrier
// TODO: use args buffer from GPUIndirectArgsBuffer instead of internal from BitonicSort to get rid of UAV barrier (run all sorting in parallel)
}
}
}