FRayTracingPipelineStateInitializer | Unreal Engine 5.6 Documentation


Name	FRayTracingPipelineStateInitializer
Type	class
Header File	/Engine/Source/Runtime/RHI/Public/RHIResources.h
Include Path	#include "RHIResources.h"

Syntax

class FRayTracingPipelineStateInitializer : public FRayTracingPipelineStateSignature

Name	Remarks	Include Path	Unreal Specifiers
FRayTracingPipelineStateInitializer()		RHIResources.h

Name	Type	Remarks	Include Path
BasePipeline	FRayTracingPipelineStateRHIRef	Ray tracing pipeline may be created by deriving from the existing base.	RHIResources.h
bBackgroundCompilation	bool	Hints to the RHI that this PSO is being compiled by a background task and will not be needed immediately for rendering.	RHIResources.h
bPartial	bool	Partial ray tracing pipelines can be used for run-time asynchronous shader compilation, but not for rendering.	RHIResources.h
ShaderBindingLayout	const FRHIShaderBindingLayout *	Shader binding table layout used during shader compilation which needs to be the same for all shaders in the RTPSO and defines how uniform buffers needs to be bound at runtime (global(RayGen) vs local(miss/hit/callable) data)	RHIResources.h

Name	Type	Include Path
CallableTable	TArrayView< FRHIRayTracingShader * >	RHIResources.h
HitGroupTable	TArrayView< FRHIRayTracingShader * >	RHIResources.h
MissTable	TArrayView< FRHIRayTracingShader * >	RHIResources.h
RayGenTable	TArrayView< FRHIRayTracingShader * >	RHIResources.h

Name	Remarks	Include Path
const TArrayView< FRHIRayTracingShader * > & GetCallableTable()		RHIResources.h
const TArrayView< FRHIRayTracingShader * > & GetHitGroupTable()		RHIResources.h
uint32 GetMaxLocalBindingDataSize()	Retrieve the max local binding size of all the raytracing shaders used in the RTPSO.	RHIResources.h
const TArrayView< FRHIRayTracingShader * > & GetMissTable()		RHIResources.h
const TArrayView< FRHIRayTracingShader * > & GetRayGenTable()		RHIResources.h
void SetCallableTable ( const TArrayView< FRHIRayTracingShader* >& InCallableShaders, uint64 Hash )	Shaders that can be explicitly invoked from RayGen shaders by their Shader Binding Table (SBT) index.	RHIResources.h
void SetHitGroupTable ( const TArrayView< FRHIRayTracingShader* >& InHitGroups, uint64 Hash )	Shaders that will be invoked when ray intersects geometry.	RHIResources.h
void SetMissShaderTable ( const TArrayView< FRHIRayTracingShader* >& InMissShaders, uint64 Hash )	Shaders that will be invoked if a ray misses all geometry.	RHIResources.h
void SetRayGenShaderTable ( const TArrayView< FRHIRayTracingShader* >& InRayGenShaders, uint64 Hash )	Shaders used as entry point to ray tracing work. At least one RayGen shader must be provided.	RHIResources.h