HairStrandsRendering.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
/*=============================================================================
    HairRendering.h: Hair rendering implementation.
=============================================================================*/
 
#pragma once
 
#include "CoreMinimal.h"
#include "RendererInterface.h"
#include "Shader.h"
#include "HairStrandsUtils.h"
#include "HairStrandsLUT.h"
#include "HairStrandsDeepShadow.h"
#include "HairStrandsVoxelization.h"
#include "HairStrandsVisibility.h"
#include "HairStrandsTransmittance.h"
#include "HairStrandsEnvironment.h"
#include "HairStrandsComposition.h"
#include "HairStrandsDebug.h"
#include "HairStrandsInterface.h"
#include "HairStrandsData.h"
 
FHairTransientResources* AllocateHairTransientResources(FRDGBuilder& GraphBuilder, FScene* Scene, const TArray<FViewInfo>& Views);
 
void RenderHairPrePass(
    FRDGBuilder& GraphBuilder,
    FScene* Scene,
    const FSceneTextures& SceneTextures,
    TArray<FViewInfo>& Views,
    FInstanceCullingManager& InstanceCullingManager,
    const FHairInstanceCullingResults& CullingResults);
 
void RenderHairBasePass(
    FRDGBuilder& GraphBuilder,
    FScene* Scene,
    const FSceneTextures& SceneTextures,
    TArray<FViewInfo>& Views,
    FInstanceCullingManager& InstanceCullingManager);
 
void RunHairStrandsBookmark(
    FRDGBuilder& GraphBuilder, 
    EHairStrandsBookmark Bookmark, 
    FHairStrandsBookmarkParameters& Parameters);
 
void RunHairStrandsBookmark(
    EHairStrandsBookmark Bookmark,
    FHairStrandsBookmarkParameters& Parameters);
 
void CreateHairStrandsBookmarkParameters(FScene* Scene, FViewInfo& View, FHairStrandsBookmarkParameters& Out, bool bComputeVisibleInstances=true);
void CreateHairStrandsBookmarkParameters(FScene* Scene, TArray<FViewInfo>& Views, TConstArrayView<FViewInfo*> AllViews, FHairStrandsBookmarkParameters& Out, bool bComputeVisibleInstances=true);
void UpdateHairStrandsBookmarkParameters(FScene* Scene, TArray<FViewInfo>& Views, FHairStrandsBookmarkParameters& Out);