FRayTracingPipelineStateInitializer | Unreal Engine 5.5 Documentation

Inheritance Hierarchy


Module	RHI
Header	/Engine/Source/Runtime/RHI/Public/RHIResources.h
Include	#include "RHIResources.h"

class FRayTracingPipelineStateInitializer : public FRayTracingPipelineStateSignature

Type	Name	Description
FRayTracingPipelineStateRHIRef	BasePipeline	Ray tracing pipeline may be created by deriving from the existing base.
bool	bBackgroundCompilation	Hints to the RHI that this PSO is being compiled by a background task and will not be needed immediately for rendering.
bool	bPartial	Partial ray tracing pipelines can be used for run-time asynchronous shader compilation, but not for rendering.
const FRHIShaderBindingLayout *	ShaderBindingLayout	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)

	Type	Name	Description
		FRayTracingPipelineStateInitializer ()

Type	Name	Description
const TArrayView< FRHIRayTracingShader * > &	GetCallableTable ()
const TArrayView< FRHIRayTracingShader * > &	GetHitGroupTable ()
uint32	GetMaxLocalBindingDataSize ()	Retrieve the max local binding size of all the raytracing shaders used in the RTPSO.
const TArrayView< FRHIRayTracingShader * > &	GetMissTable ()
const TArrayView< FRHIRayTracingShader * > &	GetRayGenTable ()
void	SetCallableTable ( const TArrayView< FRHIRayTracingShader* >& InCallableShaders, uint64 Hash )	Shaders that can be explicitly invoked from RayGen shaders by their Shader Binding Table (SBT) index.
void	SetHitGroupTable ( const TArrayView< FRHIRayTracingShader* >& InHitGroups, uint64 Hash )	Shaders that will be invoked when ray intersects geometry.
void	SetMissShaderTable ( const TArrayView< FRHIRayTracingShader* >& InMissShaders, uint64 Hash )	Shaders that will be invoked if a ray misses all geometry.
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.