Engine/Source/Runtime/Renderer/Private/PostProcess/PostProcessHistogram.h

// Copyright Epic Games, Inc. All Rights Reserved.

#pragma once

#include "ScreenPass.h"

class FEyeAdaptationParameters;

FRDGTextureRef AddHistogramPass(
	FRDGBuilder& GraphBuilder,
	const FViewInfo& View,
	const FEyeAdaptationParameters& EyeAdaptationParameters,
	FScreenPassTexture SceneColor,
	FRDGTextureRef EyeAdaptationTexture);

FRDGTextureRef AddLocalExposurePass(
	FRDGBuilder& GraphBuilder,
	const FViewInfo& View,
	const FEyeAdaptationParameters& EyeAdaptationParameters,
	FScreenPassTexture SceneColor);
Updating copyright for Engine Runtime. #rnx #rb none #ROBOMERGE-OWNER: ryan.durand #ROBOMERGE-AUTHOR: ryan.durand #ROBOMERGE-SOURCE: CL 10869210 via CL 10869511 via CL 10869900 #ROBOMERGE-BOT: (v613-10869866) [CL 10870549 by ryan durand in Main branch] 2019-12-26 14:45:42 -05:00			`// Copyright Epic Games, Inc. All Rights Reserved.`
Engine source (Main branch up to CL 2026164) 2014-03-14 14:13:41 -04:00
			`#pragma once`

Ported histogram passes to RDG. #rb zabir.hoque #jira none [CL 7956565 by zach bethel in Dev-Rendering branch] 2019-08-12 20:19:14 -04:00			`#include "ScreenPass.h"`
Engine source (Main branch up to CL 2026164) 2014-03-14 14:13:41 -04:00
Copying //UE4/Dev-Rendering@8444433 to Dev-RenderPlat-Staging (//UE4/Dev-RenderPlat-Staging) #rb none [CL 8445676 by Marcus Wassmer in Dev-RenderPlat-Staging branch] 2019-09-03 19:19:28 -04:00			`class FEyeAdaptationParameters;`
Engine source (Main branch up to CL 2026164) 2014-03-14 14:13:41 -04:00
Ported histogram passes to RDG. #rb zabir.hoque #jira none [CL 7956565 by zach bethel in Dev-Rendering branch] 2019-08-12 20:19:14 -04:00			`FRDGTextureRef AddHistogramPass(`
			`FRDGBuilder& GraphBuilder,`
Copying //UE4/Dev-Rendering@9317594 to Dev-RenderPlat-Staging #rb none #rnx [CL 9317904 by Rolando Caloca in Dev-RenderPlat-Staging branch] 2019-10-01 13:03:04 -04:00			`const FViewInfo& View,`
Copying //UE4/Dev-Rendering@8444433 to Dev-RenderPlat-Staging (//UE4/Dev-RenderPlat-Staging) #rb none [CL 8445676 by Marcus Wassmer in Dev-RenderPlat-Staging branch] 2019-09-03 19:19:28 -04:00			`const FEyeAdaptationParameters& EyeAdaptationParameters,`
Copying //UE4/Dev-Rendering@9317594 to Dev-RenderPlat-Staging #rb none #rnx [CL 9317904 by Rolando Caloca in Dev-RenderPlat-Staging branch] 2019-10-01 13:03:04 -04:00			`FScreenPassTexture SceneColor,`
Local Exposure using Bilaterial Grid based Contrast Reduction. - Image exposure is locally adjusted by decomposing luminance of the frame into a base layer and a detail layer. - Base layer contrast can be reduced while preserving detail. - Support blending with gaussian blurred luminance as proposed in Advances in Real-Time Rendering in Games 2021. - Controls in PostProcessVolume. - r.LocalExposure cvar to control whether local exposure is supported. - Visualization mode in "Show->Visualize->Local Expsoure". Multiple modes controllable using r.LocalExposure.VisualizeDebugMode. - Bilateral grid generation not yet optimized. Optimization should include increasing depth of grid to match histogram size so that global histogram can be generated from grid. - Added option to use mirror address mode in PostProcessWeightedSampleSum, since black border adds noticeable vignetting to the blurred luminance. #preflight 612f65169db3090001ba3eec #rb Brian.Karis, Guillaume.Abadie, Krzysztof.Narkowicz #ROBOMERGE-SOURCE: CL 17385317 via CL 17387198 #ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v865-17346139) [CL 17387234 by tiago costa in ue5-release-engine-test branch] 2021-09-01 11:22:04 -04:00			`FRDGTextureRef EyeAdaptationTexture);`

			`FRDGTextureRef AddLocalExposurePass(`
			`FRDGBuilder& GraphBuilder,`
			`const FViewInfo& View,`
			`const FEyeAdaptationParameters& EyeAdaptationParameters,`
			`FScreenPassTexture SceneColor);`