RayTracingInstanceCulling.h

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// Copyright Epic Games, Inc.All Rights Reserved.
 
#pragma once
 
#include "RHIDefinitions.h"
 
#if RHI_RAYTRACING
 
#include "Containers/ArrayView.h"
#include "Math/MathFwd.h"
 
class FPrimitiveSceneInfo;
class FScene;
struct FEngineShowFlags;
 
struct FRayTracingCullingParameters;
 
float GetRayTracingCullingRadius();
 
namespace RayTracing
{
 
enum class ECullingMode : uint8;
 
ECullingMode GetCullingMode(const FEngineShowFlags& ShowFlags);
 
// Tests if a primitive with the given inputs should be considered for culling.  Does NOT test configuration values.  The assumption is that the config values have already been tested.
bool ShouldConsiderCulling(const FRayTracingCullingParameters& CullingParameters, const FBoxSphereBounds& ObjectBounds, float MinDrawDistance);
 
// Returns true if the primitive should be culled out due to it's ray tracing flags
bool CullPrimitiveByFlags(const FRayTracingCullingParameters& CullingParameters, const FScene* RESTRICT Scene, int32 PrimitiveIndex);
 
// Completely test if the bounds should be culled for ray tracing. This includes all configuration values.
bool ShouldCullBounds(const FRayTracingCullingParameters& CullingParameters, const FBoxSphereBounds& ObjectBounds, float MinDrawDistance, bool bIsFarFieldPrimitive);
}
 
#endif