ScreenSpaceReflectionTiles.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "RenderGraph.h"
#include "ScreenSpaceDenoise.h"
#include "IndirectLightRendering.h"
#include "ScreenSpaceRayTracing.h"
 
class FViewInfo;
 
#define SSR_TILE_SIZE_XY (8U)
 
struct FScreenSpaceReflectionTileClassification
{
    FTiledReflection TiledReflection = FTiledReflection{ nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, SSR_TILE_SIZE_XY};
    FRDGBufferRef TileMaskBuffer = nullptr;
    FIntPoint TiledViewRes = FIntPoint{ 0, 0 };
};
 
bool IsDefaultSSRTileEnabled(const FViewInfo& View);
bool ShouldVisualizeTiledScreenSpaceReflection();
 
FScreenSpaceReflectionTileClassification ClassifySSRTiles(
    FRDGBuilder& GraphBuilder, 
    const FViewInfo& View, 
    const FSceneTextures& SceneTextures, 
    const FRDGTextureRef& DepthPrepassTexture);