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b5b86c796c
#preflight 6355d4940313c24974b2107b #rb none [CL 22783162 by henrik karlsson in ue5-main branch]
35 lines
1.3 KiB
C++
35 lines
1.3 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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BlueNoise.cpp: Resources for Blue-Noise vectors on the GPU.
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=============================================================================*/
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#include "BlueNoise.h"
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#include "TextureResource.h"
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IMPLEMENT_GLOBAL_SHADER_PARAMETER_STRUCT(FBlueNoise, "BlueNoise");
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FBlueNoise GetBlueNoiseParameters()
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{
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FBlueNoise BlueNoise;
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check(GEngine);
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check(GEngine->BlueNoiseScalarTexture && GEngine->BlueNoiseVec2Texture);
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BlueNoise.Dimensions = FIntVector(
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GEngine->BlueNoiseScalarTexture->GetSizeX(),
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GEngine->BlueNoiseScalarTexture->GetSizeX(),
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GEngine->BlueNoiseScalarTexture->GetSizeY() / FMath::Max<int32>(1, GEngine->BlueNoiseScalarTexture->GetSizeX()));
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BlueNoise.ModuloMasks = FIntVector(
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(1u << FMath::FloorLog2(BlueNoise.Dimensions.X)) - 1,
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(1u << FMath::FloorLog2(BlueNoise.Dimensions.Y)) - 1,
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(1u << FMath::FloorLog2(BlueNoise.Dimensions.Z)) - 1);
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check((BlueNoise.ModuloMasks.X + 1) == BlueNoise.Dimensions.X
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&& (BlueNoise.ModuloMasks.Y + 1) == BlueNoise.Dimensions.Y
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&& (BlueNoise.ModuloMasks.Z + 1) == BlueNoise.Dimensions.Z);
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BlueNoise.ScalarTexture = GEngine->BlueNoiseScalarTexture->GetResource()->TextureRHI;
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BlueNoise.Vec2Texture = GEngine->BlueNoiseVec2Texture->GetResource()->TextureRHI;
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return BlueNoise;
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} |