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09c29cbee9
Updated ACESOutputTransformsRGBD65 so ACESOutputTransformsRGBD65(0.18)=0.18, just like FilmToneMap does. This helped to get similar brightness between these 2 tonemappers and should be useful for people who would like to use ACES, even in SDR. #rb eric.renaudhoude rod.bogart #preflight 630652115366f61a42c3fbe7 #jira UE-151467 [CL 21559813 by benjamin rouveyrol in ue5-main branch]
77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "PostProcess/PostProcessEyeAdaptation.h"
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#include "PostProcess/PostProcessBloomSetup.h"
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#include "ScreenPass.h"
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#include "OverridePassSequence.h"
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#include "Math/Halton.h"
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bool SupportsFilmGrain(EShaderPlatform Platform);
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BEGIN_SHADER_PARAMETER_STRUCT(FTonemapperOutputDeviceParameters, )
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SHADER_PARAMETER(FVector3f, InverseGamma)
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SHADER_PARAMETER(uint32, OutputDevice)
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SHADER_PARAMETER(uint32, OutputGamut)
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SHADER_PARAMETER(float, OutputMaxLuminance)
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END_SHADER_PARAMETER_STRUCT()
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RENDERER_API FTonemapperOutputDeviceParameters GetTonemapperOutputDeviceParameters(const FSceneViewFamily& Family);
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static void GrainRandomFromFrame(FVector3f* RESTRICT const Constant, uint32 FrameNumber)
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{
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Constant->X = Halton(FrameNumber & 1023, 2);
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Constant->Y = Halton(FrameNumber & 1023, 3);
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}
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struct FTonemapInputs
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{
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// [Optional] Render to the specified output. If invalid, a new texture is created and returned.
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FScreenPassRenderTarget OverrideOutput;
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// [Required] HDR scene color to tonemap.
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FScreenPassTexture SceneColor;
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// [Required] Filtered bloom texture to composite with tonemapped scene color. This should be transparent black for no bloom.
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FScreenPassTexture Bloom;
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// [Optional] structured buffer of multiply parameters to apply to the scene color.
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FRDGBufferRef SceneColorApplyParamaters = nullptr;
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// [Optional] Luminance bilateral grid. If this is null, local exposure is disabled.
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FRDGTextureRef LocalExposureTexture = nullptr;
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// [Optional] Blurred luminance texture used to calculate local exposure.
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FRDGTextureRef BlurredLogLuminanceTexture = nullptr;
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// [Required] Eye adaptation parameters.
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const FEyeAdaptationParameters* EyeAdaptationParameters = nullptr;
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// [Required] Color grading texture used to remap colors.
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FRDGTextureRef ColorGradingTexture = nullptr;
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// [Optional, SM5+] Eye adaptation texture used to compute exposure. If this is null, a default exposure value is used instead.
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FRDGTextureRef EyeAdaptationTexture = nullptr;
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// [Optional, ES31] Eye adaptation buffer used to compute exposure.
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FRDGBufferRef EyeAdaptationBuffer = nullptr;
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// [Raster Only] Controls whether the alpha channel of the scene texture should be written to the output texture.
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bool bWriteAlphaChannel = false;
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// Configures the tonemapper to only perform gamma correction.
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bool bGammaOnly = false;
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// Whether to leave the final output in HDR.
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bool bOutputInHDR = false;
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bool bMetalMSAAHDRDecode = false;
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// Returns whether ApplyParameters is supported by the tonemapper.
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static bool SupportsSceneColorApplyParametersBuffer(EShaderPlatform Platform);
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};
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FScreenPassTexture AddTonemapPass(FRDGBuilder& GraphBuilder, const FViewInfo& View, const FTonemapInputs& Inputs);
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