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Console variables: - Niagara.GPUSorting : controls whether GPU sorting is enabled. - Niagara.GPUSorting.CPUToGPUThreshold : controls if CPU particles should be sorted through the GPU path. - Niagara.GPUSorting.BufferSlack : controls the slack when increasing/decreasing the GPU sort buffers. - Niagara.GPUSorting.MinBufferSize : minimum size for the GPU sort buffers. - Niagara.GPUSorting.FrameCountBeforeShrinking : controls how many frame before shrinking GPU sort buffers. #rb matt.collins #jira none #ROBOMERGE-OWNER: ryan.vance #ROBOMERGE-AUTHOR: uriel.doyon #ROBOMERGE-SOURCE: CL 5049288 in //UE4/Main/... #ROBOMERGE-BOT: DEVVR (Main -> Dev-VR) [CL 5133932 by uriel doyon in Dev-VR branch]
53 lines
1.4 KiB
Plaintext
53 lines
1.4 KiB
Plaintext
// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
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/*==============================================================================
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NiagaraCopyIntBuffer.usf: Shader to copy sorted index buffers.
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==============================================================================*/
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/*------------------------------------------------------------------------------
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Compile time parameters:
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THREAD_COUNT - The number of threads to launch per workgroup.
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SORT_VIEW_DEPTH
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SORT_VIEW_DISTANCE
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SORT_CUSTOM_ASCENDING
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SORT_CUSTOM_DESCENDING
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------------------------------------------------------------------------------*/
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#include "Common.ush"
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// (StartingIndex, UsedIndexCount0, UsedIndexCount1, UsedIndexCount2)
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uint4 CopyParams;
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Buffer<int> SourceData;
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RWBuffer<int> DestData0;
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RWBuffer<int> DestData1;
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RWBuffer<int> DestData2;
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[numthreads(THREAD_COUNT,1,1)]
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void MainCS(uint IndexOffset : SV_DispatchThreadID)
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{
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const uint StartingIndex = CopyParams.x;
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const uint UsedIndexCount0 = CopyParams.y;
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const uint UsedIndexCount1 = CopyParams.z;
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const uint UsedIndexCount2 = CopyParams.w;
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uint Index = StartingIndex + IndexOffset;
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// The source buffer copy is splitted between the destination buffers.
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if (Index < UsedIndexCount0)
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{
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DestData0[Index] = SourceData[Index];
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}
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else if (Index < UsedIndexCount1)
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{
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DestData1[Index] = SourceData[Index];
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}
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else if (Index < UsedIndexCount2)
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{
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DestData2[Index] = SourceData[Index];
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}
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}
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