DistanceFieldLightingPost.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
/*=============================================================================
    DistanceFieldLightingPost.h
=============================================================================*/
 
#pragma once
 
#include "CoreMinimal.h"
#include "SceneRendering.h"
 
class FDistanceFieldAOParameters;
 
extern void AllocateOrReuseAORenderTarget(FRDGBuilder& GraphBuilder, const FViewInfo& View, FRDGTextureRef& Target, const TCHAR* Name, EPixelFormat Format, ETextureCreateFlags Flags = TexCreate_None);
 
extern void UpdateHistory(
    FRDGBuilder& GraphBuilder,
    const FViewInfo& View,
    const TCHAR* BentNormalHistoryRTName,
    const FSceneTextures& SceneTextures,
    FRDGTextureRef VelocityTexture,
    FRDGTextureRef BentNormalInterpolation,
    FRDGTextureRef DistanceFieldNormal,
    FIntRect* DistanceFieldAOHistoryViewRect,
    TRefCountPtr<IPooledRenderTarget>* BentNormalHistoryState,
    FRDGTextureRef& BentNormalHistoryOutput,
    const FDistanceFieldAOParameters& Parameters);
 
extern void UpsampleBentNormalAO(
    FRDGBuilder& GraphBuilder,
    const FViewInfo& View,
    const FSceneTextures& SceneTextures,
    FRDGTextureRef SceneColorTexture,
    FRDGTextureRef DistanceFieldAOBentNormal,
    bool bModulateSceneColor,
    bool bModulateToScreenSpaceAO);
 
extern void MobileAggregateDFAOToSSAO(
    FRDGBuilder& GraphBuilder,
    const FViewInfo& View,
    const FSceneTextures& SceneTextures,
    FRDGTextureRef SceneColorTexture,
    FRDGTextureRef DistanceFieldAOBentNormal);