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> Unreal Engine API Reference > Runtime > RHI

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RHI

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Classes

	Name	Description
	AFRUtils	GPU mask utilities to get information about AFR groups and siblings.
	FAsyncReallocationRequest	Asynchronous reallocation request.
	FBlendStateInitializerRHI
	FBoundShaderStateInput
	FBoundShaderStateKey	Key used to map a set of unique decl/vs/ps combinations to a vertex shader resource
	FBoundShaderStateLookupKey	Correct lifetime management.
	FByteAddressBuffer
	FCachedBoundShaderStateLink	Encapsulates a bound shader state's entry in the cache.
	FCachedBoundShaderStateLink_Threadsafe
	FClearValueBinding
	FComputedGraphicsPipelineState
	FComputedUniformBuffer
	FCopyBufferRegionParams
	FDefaultRHIRenderQueryPool
	FDepthStencilStateInitializerRHI
	FDrawCallCategoryName
	FDumpTransitionsHelper
	FDynamicReadBuffer
	FDynamicRHI	The interface which is implemented by the dynamically bound RHI.
	FExclusiveDepthStencil
	FGenericDataDrivenShaderPlatformInfo
	FGenericRHIGPUFence	Generic implementation of FRHIGPUFence.
	FGenericRHIStagingBuffer
	FGenericStaticFeatureLevel
	FGenericStaticShaderPlatform
	FGPUDefragAllocator	Simple best fit allocator, splitting and coalescing whenever/ wherever possible.
	FGPUProfiler	Encapsulates GPU profiling logic and data.
	FGPUProfilerEventNode	Stats for a single perf event node.
	FGPUProfilerEventNodeFrame	An entire frame of perf event nodes, including ancillary timers.
	FGPUProfilerEventNodeStats	Stats for a single perf event node.
	FGpuProfilerTrace
	FGPUTiming	Holds information if this platform's GPU allows timing
	FGPUTimingCalibrationTimestamp	Two timestamps performed on GPU and CPU at nearly the same time.
	FGraphicsPipelineRenderTargetsInfo
	FGraphicsPipelineStateInitializer
	FImmutableSamplerState
	FInitStaticResourceRenderThreadTask	Helper task to initialize a static resource on the render thread.
	FLastRenderTimeContainer	Textures
	FLocalCmdListParallelRenderPass
	FLocalCmdListRenderSubPass
	FLocalUniformBuffer
	FLocalUniformBufferWorkArea
	FLockTracker
	FPipelineCacheFileFormatPSO
	FPipelineCacheFileFormatPSORead
	FPipelineCachePSOHeader
	FPipelineFileCache
	FPipelineFileCacheRasterizerState
	FPipelineStateStats	Tracks stats for the current session between opening & closing the file-cache.
	FPixelFormatInfo	Information about a pixel format.
	FPSOUsageData	FPipelineFileCache: The RHI-level backend for FShaderPipelineCache, responsible for tracking PSOs and their usage stats as well as dealing with the pipeline cache files.
	FRasterizerStateInitializerRHI
	FRayTracingAccelerationStructureSize
	FRayTracingGeometryBuildParams
	FRayTracingGeometryInitializer
	FRayTracingGeometryInstance	High level descriptor of one or more instances of a mesh in a ray tracing scene.
	FRayTracingGeometrySegment
	FRayTracingPipelineStateInitializer
	FRayTracingPipelineStateSignature
	FRayTracingSceneBuildParams
	FRayTracingSceneInitializer
	FRayTracingSceneInitializer2
	FReadBuffer	Encapsulates a GPU read buffer with its SRV.
	FReadSurfaceDataFlags	To customize the RHIReadSurfaceData() output
	FRenderTask
	FResolveParams
	FResolveRect
	FRHIAmplificationShader
	FRHIAsyncComputeCommandListImmediate	Single commandlist for async compute generation.
	FRHIBlendState
	FRHIBoundShaderState
	FRHIBuffer
	FRHIBufferCreateInfo	Descriptor used to create a buffer resource
	FRHIBufferSRVCreateInfo
	FRHIBufferUAVCreateInfo
	FRHIBufferUpdateInfo
	FRHIBufferViewCache
	FRHICommand
	FRHICommandBase
	FRHICommandBeginDrawingViewport
	FRHICommandBeginDrawingViewportString__LINE__
	FRHICommandBeginFrame
	FRHICommandBeginFrameString__LINE__
	FRHICommandBeginParallelRenderPass
	FRHICommandBeginParallelRenderPassString__LINE__
	FRHICommandBeginRenderPass
	FRHICommandBeginRenderPassString__LINE__
	FRHICommandBeginRenderQuery
	FRHICommandBeginRenderQueryString__LINE__
	FRHICommandBeginRenderSubPass
	FRHICommandBeginRenderSubPassString__LINE__
	FRHICommandBeginScene
	FRHICommandBeginSceneString__LINE__
	FRHICommandBeginSpecificUAVOverlap
	FRHICommandBeginSpecificUAVOverlapString__LINE__
	FRHICommandBeginTransitions
	FRHICommandBeginTransitionsString__LINE__
	FRHICommandBeginUAVOverlap
	FRHICommandBeginUAVOverlapString__LINE__
	FRHICommandBeginUpdateMultiFrameResource
	FRHICommandBeginUpdateMultiFrameResourceString__LINE__
	FRHICommandBeginUpdateMultiFrameUAV
	FRHICommandBeginUpdateMultiFrameUAVString__LINE__
	FRHICommandBuildLocalUniformBuffer
	FRHICommandBuildLocalUniformBufferString__LINE__
	FRHICommandCalibrateTimers
	FRHICommandCalibrateTimersString__LINE__
	FRHICommandClearColorTexture
	FRHICommandClearColorTextures
	FRHICommandClearColorTexturesString__LINE__
	FRHICommandClearColorTextureString__LINE__
	FRHICommandClearDepthStencilTexture
	FRHICommandClearDepthStencilTextureString__LINE__
	FRHICommandClearUAVFloat
	FRHICommandClearUAVFloatString__LINE__
	FRHICommandClearUAVUint
	FRHICommandClearUAVUintString__LINE__
	FRHICommandCopyBufferRegion
	FRHICommandCopyBufferRegionString__LINE__
	FRHICommandCopyTexture
	FRHICommandCopyTextureString__LINE__
	FRHICommandCopyToResolveTarget
	FRHICommandCopyToResolveTargetString__LINE__
	FRHICommandCopyToStagingBuffer
	FRHICommandCopyToStagingBufferString
	FRHICommandDebugBreak
	FRHICommandDebugBreakString__LINE__
	FRHICommandDiscardRenderTargets
	FRHICommandDiscardRenderTargetsString__LINE__
	FRHICommandDispatchComputeShader
	FRHICommandDispatchComputeShaderString
	FRHICommandDispatchIndirectComputeShader
	FRHICommandDispatchIndirectComputeShaderString
	FRHICommandDispatchIndirectMeshShader
	FRHICommandDispatchIndirectMeshShaderString__LINE__
	FRHICommandDispatchMeshShader
	FRHICommandDispatchMeshShaderString__LINE__
	FRHICommandDrawIndexedIndirect
	FRHICommandDrawIndexedIndirectString__LINE__
	FRHICommandDrawIndexedPrimitive
	FRHICommandDrawIndexedPrimitiveIndirect
	FRHICommandDrawIndexedPrimitiveIndirectString__LINE__
	FRHICommandDrawIndexedPrimitiveString__LINE__
	FRHICommandDrawPrimitive
	FRHICommandDrawPrimitiveIndirect
	FRHICommandDrawPrimitiveIndirectString__LINE__
	FRHICommandDrawPrimitiveString__LINE__
	FRHICommandEndDrawingViewport
	FRHICommandEndDrawingViewportString__LINE__
	FRHICommandEndFrame
	FRHICommandEndFrameString__LINE__
	FRHICommandEndParallelRenderPass
	FRHICommandEndParallelRenderPassString__LINE__
	FRHICommandEndRenderPass
	FRHICommandEndRenderPassString__LINE__
	FRHICommandEndRenderQuery
	FRHICommandEndRenderQueryString__LINE__
	FRHICommandEndRenderSubPass
	FRHICommandEndRenderSubPassString__LINE__
	FRHICommandEndScene
	FRHICommandEndSceneString__LINE__
	FRHICommandEndSpecificUAVOverlap
	FRHICommandEndSpecificUAVOverlapString__LINE__
	FRHICommandEndTransitions
	FRHICommandEndTransitionsString__LINE__
	FRHICommandEndUAVOverlap
	FRHICommandEndUAVOverlapString__LINE__
	FRHICommandEndUpdateMultiFrameResource
	FRHICommandEndUpdateMultiFrameResourceString__LINE__
	FRHICommandEndUpdateMultiFrameUAV
	FRHICommandEndUpdateMultiFrameUAVString__LINE__
	FRHICommandInvalidateCachedState
	FRHICommandInvalidateCachedStateString__LINE__
	FRHICommandList
	FRHICommandList_RecursiveHazardous
	FRHICommandListBase
	FRHICommandListDebugContext
	FRHICommandListExecutor
	FRHICommandListFenceAllocator	Thread-safe allocator for GPU fences used in deferred command list execution Fences are stored in a ringbuffer
	FRHICommandListImmediate
	FRHICommandListIterator	Helper class for traversing a FRHICommandList.
	FRHICommandListScopedFlushAndExecute
	FRHICommandNextSubpass
	FRHICommandNextSubpassString__LINE__
	FRHICommandPollOcclusionQueries
	FRHICommandPollOcclusionQueriesString__LINE__
	FRHICommandPopEvent
	FRHICommandPopEventString
	FRHICommandPostExternalCommandsReset
	FRHICommandPostExternalCommandsResetString__LINE__
	FRHICommandPushEvent
	FRHICommandPushEventString
	FRHICommandResourceTransition
	FRHICommandResourceTransitionString__LINE__
	FRHICommandResummarizeHTile
	FRHICommandResummarizeHTileString__LINE__
	FRHICommandSetAsyncComputeBudget
	FRHICommandSetAsyncComputeBudgetString
	FRHICommandSetBlendFactor
	FRHICommandSetBlendFactorString__LINE__
	FRHICommandSetComputePipelineState
	FRHICommandSetComputePipelineStateString
	FRHICommandSetComputeShader
	FRHICommandSetComputeShaderString
	FRHICommandSetDepthBounds
	FRHICommandSetDepthBoundsString__LINE__
	FRHICommandSetGraphicsPipelineState
	FRHICommandSetGraphicsPipelineStateString__LINE__
	FRHICommandSetLocalUniformBuffer
	FRHICommandSetLocalUniformBufferString
	FRHICommandSetScissorRect
	FRHICommandSetScissorRectString__LINE__
	FRHICommandSetShaderParameter
	FRHICommandSetShaderParameterString
	FRHICommandSetShaderResourceViewParameter
	FRHICommandSetShaderResourceViewParameterString
	FRHICommandSetShaderSampler
	FRHICommandSetShaderSamplerString
	FRHICommandSetShaderTexture
	FRHICommandSetShaderTextureString
	FRHICommandSetShaderUniformBuffer
	FRHICommandSetShaderUniformBufferString
	FRHICommandSetShadingRate
	FRHICommandSetShadingRateString__LINE__
	FRHICommandSetStaticUniformBuffers
	FRHICommandSetStaticUniformBuffersString__LINE__
	FRHICommandSetStencilRef
	FRHICommandSetStencilRefString__LINE__
	FRHICommandSetStereoViewport
	FRHICommandSetStereoViewportString__LINE__
	FRHICommandSetStreamSource
	FRHICommandSetStreamSourceString__LINE__
	FRHICommandSetUAVParameter
	FRHICommandSetUAVParameter_InitialCount
	FRHICommandSetUAVParameter_InitialCountString
	FRHICommandSetUAVParameterString
	FRHICommandSetViewport
	FRHICommandSetViewportString__LINE__
	FRHICommandSubmitCommandsHint
	FRHICommandSubmitCommandsHintString__LINE__
	FRHICommandUpdateRHIResources
	FRHICommandUpdateRHIResourcesString__LINE__
	FRHICommandWriteGPUFence
	FRHICommandWriteGPUFenceString
	FRHIComputeCommandList
	FRHIComputeCommandList_RecursiveHazardous
	FRHIComputeFence
	FRHIComputePipelineState
	FRHIComputePipelineStateFallback
	FRHIComputeShader
	FRHICopyTextureInfo
	FRHICustomPresent
	FRHIDepthRenderTargetView
	FRHIDepthStencilState
	FRHIDispatchIndirectParameters
	FRHIDrawIndexedIndirectParameters
	FRHIDrawIndirectParameters
	FRHIFlipDetails	Struct to provide details of swap chain flips
	FRHIGeometryShader
	FRHIGPUBufferReadback	Buffer readback implementation.
	FRHIGPUFence	Generic GPU fence class.
	FRHIGPUMask	A mask where each bit is a GPU index.
	FRHIGPUMemoryReadback	FRHIGPUMemoryReadback: Represents a memory readback request scheduled with CopyToStagingBuffer Wraps a staging buffer with a FRHIGPUFence for synchronization.
	FRHIGPUTextureReadback	Texture readback implementation.
	FRHIGraphicsPipelineState	Pipeline States
	FRHIGraphicsPipelineStateFallBack	This PSO is used as a fallback for RHIs that dont support PSOs. It is used to set the graphics state using the legacy state setting APIs.
	FRHIGraphicsShader
	FRHILockTracker
	FRHIMeshShader
	FRHIPipelineBinaryLibrary
	FRHIPixelShader
	FRHIPooledRenderQuery
	FRHIR10G10B10A2	Helper for accessing R10G10B10A2 colors.
	FRHIRasterizerState
	FRHIRayCallableShader
	FRHIRayGenShader
	FRHIRayHitGroupShader
	FRHIRayMissShader
	FRHIRayTracingAccelerationStructure
	FRHIRayTracingGeometry	Bottom level ray tracing acceleration structure (contains triangles).
	FRHIRayTracingGeometryUpdateInfo
	FRHIRayTracingPipelineState
	FRHIRayTracingScene	Top level ray tracing acceleration structure (contains instances of meshes).
	FRHIRayTracingShader
	FRHIRenderPassInfo
	FRHIRenderQuery
	FRHIRenderQueryPool
	FRHIRenderTargetView
	FRHIResource	The base type of RHI resources.
	FRHIResourceCreateInfo
	FRHIResourceInfo
	FRHIResourceTableEntry
	FRHIResourceUpdateInfo
	FRHIRG16	Helper for accessing R16G16 colors.
	FRHIRGBA16	Helper for accessing R16G16B16A16 colors.
	FRHISamplerState	State blocks
	FRHISetRenderTargetsInfo
	FRHIShader
	FRHIShaderLibrary	Shader Library
	FRHIShaderResourceView
	FRHIShaderResourceViewUpdateInfo
	FRHIStagingBuffer	Generic staging buffer class used by FRHIGPUMemoryReadback RHI specific staging buffers derive from this
	FRHISubresourceRange
	FRHITexture
	FRHITexture2D
	FRHITexture2DArray
	FRHITexture3D
	FRHITextureCreateInfo	Descriptor used to create a texture resource
	FRHITextureCube
	FRHITextureReference
	FRHITextureSRVCreateInfo
	FRHITextureUAVCreateInfo
	FRHITextureViewCache
	FRHITimestampCalibrationQuery	Misc
	FRHITransientAliasingInfo
	FRHITransientAliasingOverlap
	FRHITransientAllocationStats
	FRHITransientBuffer
	FRHITransientHeapAllocation	Represents an allocation from the transient heap.
	FRHITransientPageAllocation	Represents a full set of page allocations from multiple page pools.
	FRHITransientPagePoolAllocation	Represents an allocation from a transient page pool.
	FRHITransientPageSpan
	FRHITransientResource
	FRHITransientTexture
	FRHITransition	Opaque data structure used to represent a pending resource transition in the RHI.
	FRHITransitionCreateInfo
	FRHITransitionInfo
	FRHIUniformBuffer
	FRHIUniformBufferLayout	The layout of a uniform buffer in memory.
	FRHIUniformBufferLayoutInitializer	Initializer for the layout of a uniform buffer in memory.
	FRHIUniformBufferResource	Data structure to store information about resource parameter in a shader parameter structure.
	FRHIUnorderedAccessView	Views
	FRHIVertexDeclaration
	FRHIVertexShader
	FRHIViewport
	FRWBuffer	Encapsulates a GPU read/write buffer with its UAV and SRV.
	FRWBufferStructured	Encapsulates a GPU read/write structured buffer with its UAV and SRV.
	FRWByteAddressBuffer	Encapsulates a GPU read/write ByteAddress buffer with its UAV and SRV.
	FSamplerStateInitializerRHI
	FScopedCommandListWaitForTasks
	FScopedGPUDefragLock	FScopedGPUDefragLock can't cover any scope that will add dcb commands or we might deadlock with a master reserve failure.
	FScopedGPUMask
	FScopedRHIThreadStaller
	FScopedUniformBufferStaticBindings
	FScreenResolutionRHI	Screen Resolution
	FShaderResourceViewInitializer
	FStaticShaderPlatformNames
	FStreamOutElement	RHI representation of a single stream out element.
	FTextureMemoryStats
	FTextureReadBuffer2D	Encapsulates a GPU read only texture 2D with its SRV.
	FTextureRWBuffer2D	Encapsulates a GPU read/write texture 2D with its UAV and SRV.
	FTextureRWBuffer3D	Encapsulates a GPU read/write texture 3d with its UAV and SRV.
	FTransferResourceParams	Parameters for RHITransferResources, used to copy memory between GPUs
	FUniformBufferStaticBindings	A list of static uniform buffer bindings.
	FUnnamedRhiCommand
	FUpdateTexture3DData	Struct to hold common data between begin/end updatetexture3d
	FUpdateTextureRegion2D	Specifies an update region for a texture
	FUpdateTextureRegion3D	Specifies an update region for a texture
	FVertexElement
	FVertexElementTypeSupportInfo	Info for supporting the vertex element types
	FViewportBounds	Viewport bounds structure to set multiple view ports for the geometry shader (needs to be 1:1 to the D3D11 structure)
	FVRamAllocation
	IDynamicRHIModule	Defines the interface of a module implementing a dynamic RHI.
	IRHICommandContext	The interface RHI command context.
	IRHICommandContextContainer
	IRHICommandContextPSOFallback	Command Context for RHIs that do not support real Graphics Pipelines.
	IRHIComputeContext	Context that is capable of doing Compute work. Can be async or compute on the gfx pipe.
	IRHITransientResourceAllocator
	TPsoLruCache	Implements a Least Recently Used (LRU) cache.
	TRHICommandList_RecursiveHazardous	Helper class used internally by RHIs to make use of FRHICommandList_RecursiveHazardous safer.
	TRHIComputeCommandList_RecursiveHazardous
	TRHIGlobal	Wrapper for GRHI## global variables, allows values to be overridden for mobile preview modes.
	TRHILambdaCommand
	TRHIPipelineArray	Array of pass handles by RHI pipeline, with overloads to help with enum conversion.
	TRHIResourceUpdateBatcher
	TRHIShaderToEnum	Templates to convert an FRHI*Shader to its enum.
	TStaticBlendState	A static RHI blend state resource.
	TStaticBlendStateWriteMask	A static RHI blend state resource which only allows controlling MRT write masks, for use when only opaque blending is needed.
	TStaticDepthStencilState	A static RHI stencil state resource.
	TStaticRasterizerState	A static RHI rasterizer state resource.
	TStaticSamplerState	A static RHI sampler state resource.
	TStaticStateRHI	The base class of the static RHI state classes.

Constants

Name	Description
kUniformBufferInvalidOffset
MAX_MESH_LOD_COUNT	Maximum number of static/skeletal mesh LODs
MAX_TEXTURE_MIP_COUNT	Maximum number of miplevels in a texture.
MAX_UNIFORM_BUFFER_STATIC_SLOTS	The maximum number of static slots allowed.
MaxImmutableSamplers	Maximum number of immutable samplers in a PSO.
MaxSimultaneousRenderTargets	The number of render-targets that may be simultaneously written to.
MaxSimultaneousRenderTargets_NumBits	The number of render-targets that may be simultaneously written to.
MaxSimultaneousUAVs	The number of UAVs that may be simultaneously bound to a shader.
MaxVertexElementCount	The maximum number of vertex elements which can be used by a vertex declaration.
MaxVertexElementCount_NumBits	The maximum number of vertex elements which can be used by a vertex declaration.
NAME_GLSL_150_ES31
NAME_GLSL_ES3_1_ANDROID
NAME_PCD3D_ES3_1
NAME_PCD3D_SM5
NAME_PCD3D_SM6
NAME_SF_METAL
NAME_SF_METAL_MACES3_1
NAME_SF_METAL_MRT
NAME_SF_METAL_MRT_MAC
NAME_SF_METAL_MRT_TVOS
NAME_SF_METAL_SM5
NAME_SF_METAL_TVOS
NAME_SF_XBOXONE_D3D12
NAME_VULKAN_ES3_1
NAME_VULKAN_ES3_1_ANDROID
NAME_VULKAN_SM5
NAME_VULKAN_SM5_ANDROID
ShaderArrayElementAlignBytes	The alignment in bytes between elements of array shader parameters.

Typedefs

Name	Description
FAmplificationShaderRHIRef
FBlendStateRHIRef
FBoundShaderStateRHIRef
FBufferRHIRef
FComputeFenceRHIRef
FComputePipelineStateRHIRef
FComputeShaderRHIRef
FCustomPresentRHIRef
FDataDrivenShaderPlatformInfo
FDepthStencilStateRHIRef
FGeometryShaderRHIRef
FGPUFenceRHIRef
FGraphicsPipelineStateRHIRef
FMeshShaderRHIRef
FPixelShaderRHIRef
FPSOMaskComparisonFn	User definable Mask Comparsion function:
FRasterizerStateRHIRef
FRayTracingAccelerationStructureAddress
FRayTracingGeometryRHIRef
FRayTracingPipelineStateRHIRef
FRayTracingSceneRHIRef
FRayTracingShaderRHIRef
FRenderQueryPoolRHIRef
FRenderQueryRHIRef
FRHIPanicEvent	Panic delegate is called when when a fatal condition is encountered within RHI function.
FRHIPipelineBinaryLibraryRef
FRHIRayTracingCommandList	Used to separate which command list is used for ray tracing operations.
FRHIShaderLibraryRef
FSamplerStateRHIRef
FScopedUniformBufferGlobalBindings
FScreenResolutionArray
FShaderResourceViewRHIRef
FStagingBufferRHIRef
FStaticFeatureLevel
FStaticShaderPlatform
FStreamOutElementList
FTexture2DArrayRHIRef
FTexture2DRHIRef
FTexture3DRHIRef
FTextureCubeRHIRef
FTextureReferenceRHIRef
FTextureRHIRef
FTimestampCalibrationQueryRHIRef
FUniformBufferGlobalBindings
FUniformBufferLayoutRHIRef
FUniformBufferRHIRef
FUniformBufferStaticSlot	Numerical type used to store the static slot indices.
FUnorderedAccessViewRHIRef
FVertexDeclarationElementList	Shader bindings
FVertexDeclarationElementList
FVertexDeclarationRHIRef
FVertexShaderRHIRef
FViewportRHIRef

Enums

	Name	Description
	EAccelerationStructureBuildMode
	EApplyRendertargetOption	Utility flags for modifying render target behavior on a PSO.
	EAsyncComputeBudget	Hint to the driver on how to load balance async compute work.
	EAsyncComputePriority
	EBlendFactor
	EBlendOperation
	EBufferUsageFlags	Resource usage flags - for vertex and index buffers.
	EClearBinding
	EClearDepthStencil
	EColorSpaceAndEOTF
	EColorWriteMask
	ECompareFunction
	EConservativeRasterization
	ECubeFace
	EDepthStencilTargetActions
	EGpuVendorId
	EImmediateFlushType::Type
	EPixelFormatCapabilities
	EPrimitiveTopologyType
	EPrimitiveType
	ERangeCompressionMode	Limited to 8 types in FReadSurfaceDataFlags
	ERasterizerCullMode
	ERasterizerFillMode
	ERayTracingAccelerationStructureFlags
	ERayTracingGeometryInitializerType
	ERayTracingGeometryType
	ERayTracingInstanceFlags	Ray tracing resources
	ERayTracingPipelineCacheFlags
	ERayTracingSceneLifetime
	ERenderQueryType
	ERenderTargetActions
	ERenderTargetLoadAction	Action to take when a render target is set.
	ERenderTargetStoreAction	Action to take when a render target is unset or at the end of a pass.
	EResourceLockMode
	EResourceTransitionFlags
	ERHIAccess
	ERHIFeatureLevel::Type	The RHI's feature level indicates what level of support can be relied upon.
	ERHIPipeline
	ERHIResourceType	An enumeration of the different RHI reference types.
	ERHIShadingPath::Type	The RHI's currently enabled shading path.
	ERHITextureMetaDataAccess	Used to specify a texture metadata plane when creating a view.
	ERHITextureSRVOverrideSRGBType
	ERHITransientAllocationType
	ERHITransientResourceType
	ERHITransitionCreateFlags
	ERHIZBuffer
	ESamplerAddressMode
	ESamplerCompareFunction
	ESamplerFilter
	EShaderCodeResourceBindingType	The USF binding type for a resource in a shader.
	EShaderFrequency
	EShaderPlatform	: update LegacyShaderPlatform when the below changes
	ESimpleRenderTargetMode	Common render target use cases
	EStencilMask
	EStencilOp
	ESubpassHint	Hints for some RHIs that support subpasses.
	ETextureCreateFlags	Flags used for texture creation
	ETextureDimension	Describes the dimension of a texture.
	ETextureReallocationStatus	Async texture reallocation status, returned by RHIGetReallocateTexture2DStatus().
	EUniformBufferBaseType	The base type of a value in a shader parameter structure.
	EUniformBufferBindingFlags	The list of flags declaring which binding models are allowed for a uniform buffer layout.
	EUniformBufferUsage
	EUniformBufferValidation
	EVertexElementType
	EVRSAxisShadingRate
	EVRSImageDataType
	EVRSRateCombiner
	EVRSShadingRate

Functions

	Name	Description
FMatrix	AdjustProjectionMatrixForRHI ( const FMatrix& InProjectionMatrix )	Adjusts a projection matrix to output in the correct clip space for the current RHI.
void	appDefragmentTexturePool()	Defragment the texture pool.
void	appDumpTextureMemoryStats ( const TCHAR* )	Log the current texture memory stats.
bool	appIsPoolTexture ( FRHITexture* TextureRHI )	Checks if the texture data is allocated within the texture pool or not.
SIZE_T	CalculateImageBytes ( uint32 SizeX, uint32 SizeY, uint32 SizeZ, uint8 Format )	CalculateImageBytes
int32	CalculateMSAASampleArrayIndex ( int32 NumSamples, int32 SampleIndex )	Calculate the index of the sample in GRHIDefaultMSAASampleOffsets.
uint32	ComputeAnisotropyRT ( int32 InitializerMaxAnisotropy )
void	ConvertRawA2B10G10R10DataToFLinearColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FLinearColor* Out )
void	ConvertRawB8G8R8A8DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out )
void	ConvertRawB8G8R8A8DataToFLinearColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FLinearColor* Out )
void	ConvertRawD32S8DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out, FReadSurfaceDataFlags InFlags )
void	ConvertRawR10G10B10A2DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out )
void	ConvertRawR11G11B10DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out, bool LinearToGamma )
void	ConvertRawR16DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out )
void	ConvertRawR16DataToFLinearColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FLinearColor* Out )
void	ConvertRawR16G16B16A16DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out )
void	ConvertRawR16G16B16A16DataToFLinearColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FLinearColor* Out )
void	ConvertRawR16G16B16A16FDataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out, bool LinearToGamma )
void	ConvertRawR16G16B16A16FDataToFFloat16Color ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FFloat16Color* Out )
void	ConvertRawR16G16B16A16FDataToFLinearColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FLinearColor* Out, FReadSurfaceDataFlags InFlags )
void	ConvertRawR16G16DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out )
void	ConvertRawR16G16DataToFLinearColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FLinearColor* Out )
void	ConvertRawR24G8DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out, FReadSurfaceDataFlags InFlags )
void	ConvertRawR24G8DataToFLinearColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FLinearColor* Out, FReadSurfaceDataFlags InFlags )
void	ConvertRawR32DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out, FReadSurfaceDataFlags InFlags )
void	ConvertRawR32DataToFLinearColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FLinearColor* Out, FReadSurfaceDataFlags InFlags )
void	ConvertRawR32G32B32A32DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out, bool LinearToGamma )
void	ConvertRawR32G32B32A32DataToFLinearColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FLinearColor* Out, FReadSurfaceDataFlags InFlags )
void	ConvertRawR8DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out )
void	ConvertRawR8G8B8A8DataToFColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FColor* Out )
void	ConvertRawR8G8B8A8DataToFLinearColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FLinearColor* Out )
void	ConvertRawRR11G11B10DataToFLinearColor ( uint32 Width, uint32 Height, uint8* In, uint32 SrcPitch, FLinearColor* Out )
void	DecodeRenderTargetMode ( ESimpleRenderTargetMode Mode, ERenderTargetLoadAction& ColorLoad..., ERenderTargetStoreAction& ColorSto..., ERenderTargetLoadAction& DepthLoad..., ERenderTargetStoreAction& DepthSto..., ERenderTargetLoadAction& StencilLo..., ERenderTargetStoreAction& StencilS..., FExclusiveDepthStencil DepthStencil... )	Convert the ESimpleRenderTargetMode into usable values
void	EmptyCachedBoundShaderStates()
void	EnumerateRHIPipelines ( ERHIPipeline PipelineMask, FunctionType Function )
int32	FindRayTracingHitGroupIndex ( FRayTracingPipelineState* Pipe..., FRHIRayTracingShader* HitGroup..., bool bRequired )	Returns the hit group index within the ray tracing pipeline or INDEX_NONE if given shader does not exist.
EPixelFormat	GetBlockCompressedFormatUAVAliasFormat ( EPixelFormat Format )
FString	GetBufferUsageFlagsName ( EBufferUsageFlags BufferUsage )	Returns a string of friendly name bits for the buffer usage flags enum.
const TCHAR ...	GetBufferUsageFlagString ( EBufferUsageFlags BufferUsage )
FCachedBound...	GetCachedBoundShaderState ( FRHIVertexDeclaration* VertexD..., FRHIVertexShader* VertexShader, FRHIPixelShader* PixelShader, FRHIGeometryShader* GeometrySh..., FRHIMeshShader* MeshShader, FRHIAmplificationShader* Ampli... )	Searches for a cached bound shader state.
FBoundShader...	GetCachedBoundShaderState_Threadsafe ( FRHIVertexDeclaration* VertexD..., FRHIVertexShader* VertexShader, FRHIPixelShader* PixelShader, FRHIGeometryShader* GeometrySh..., FRHIMeshShader* MeshShader, FRHIAmplificationShader* Ampli... )	Searches for a cached bound shader state. Threadsafe version.
ERenderTarge...	GetDepthActions ( EDepthStencilTargetActions Action )
uint32	GetExpectedFeatureLevelMaxTextureSamplers ( const FStaticFeatureLevel FeatureLe... )	Return what the expected number of samplers will be supported by a feature level.
bool	GetFeatureLevelFromName ( FName Name, ERHIFeatureLevel::Type& OutFeature... )	Current shader platform.
void	GetFeatureLevelName ( ERHIFeatureLevel::Type InFeatureLev..., FName& OutName )	Creates an FName for the given feature level.
void	GetFeatureLevelName ( ERHIFeatureLevel::Type InFeatureLev..., FString& OutName )	Creates a string for the given feature level.
EShaderPlatf...	GetFeatureLevelShaderPlatform ( const FStaticFeatureLevel InFeature... )	Get the shader platform associated with the supplied feature level on this machine
FText	GetFriendlyShaderPlatformName ( const EShaderPlatform InShaderPlatf... )
ERenderTarge...	GetLoadAction ( ERenderTargetActions Action )
uint32	GetMax2DTextureDimension()
uint64	GetMaxBufferDimension()
uint64	GetMaxComputeSharedMemory()
uint32	GetMaxCubeTextureDimension()
FStaticFeatu...	GetMaxSupportedFeatureLevel ( const FStaticShaderPlatform InShade... )
uint32	GetMaxTextureArrayLayers()
uint32	GetMaxTextureSamplers()
uint32	GetMaxWorkGroupInvocations()
FVector2f	GetMSAASampleOffsets ( int32 NumSamples, int32 SampleIndex )	Gets the MSAA sample's offset from the center of the pixel coordinate.
FString	GetResourceTransitionFlagsName ( EResourceTransitionFlags Flags )
FString	GetRHIAccessName ( ERHIAccess Access )
constexpr ui...	GetRHIPipelineCount()
constexpr ui...	GetRHIPipelineIndex ( ERHIPipeline Pipeline )
FString	GetRHIPipelineName ( ERHIPipeline Pipeline )
TArrayView< ...	GetRHIPipelines()
ERHIResource...	GetRHIResourceType ( ETextureDimension Dimension )
const TCHAR ...	GetSelectedDynamicRHIModuleName ( bool bCleanup )	Name of the RHI module that will be created when PlatformCreateDynamicRHI is called.
const TCHAR ...	GetShaderFrequencyString ( EShaderFrequency Frequency, bool bIncludePrefix )
const TCHAR ...	GetShaderFrequencyString ( bool bIncludePrefix )
bool	GetShadingPathFromName ( FName Name, ERHIShadingPath::Type& OutShadingP... )	Finds a corresponding ERHIShadingPath::Type given an FName, or returns false if one could not be found.
void	GetShadingPathName ( ERHIShadingPath::Type InShadingPath, FString& OutName )	Creates a string for the given shading path.
void	GetShadingPathName ( ERHIShadingPath::Type InShadingPath, FName& OutName )	Creates an FName for the given shading path.
EShaderPlatf...	GetSimulatedPlatform ( FStaticShaderPlatform Platform )
FRHIRasteriz...	GetStaticRasterizerState ( ERasterizerFillMode FillMode, ERasterizerCullMode CullMode )	Given a fill and cull mode, returns a static rasterizer state.
ERenderTarge...	GetStencilActions ( EDepthStencilTargetActions Action )
ERenderTarge...	GetStoreAction ( ERenderTargetActions Action )
FString	GetTextureCreateFlagsName ( ETextureCreateFlags TextureCreateFl... )	Returns a string of friendly name bits for the texture create flags enum.
const TCHAR ...	GetTextureCreateFlagString ( ETextureCreateFlags TextureCreateFl... )
const TCHAR ...	GetTextureDimensionString ( ETextureDimension Dimension )
uint32	GetTypeHash ( const FRHITextureSRVCreateInfo& Va... )
const TCHAR ...	GetUniformBufferBaseTypeString ( EUniformBufferBaseType BaseType )
uint32	GetVertexCountForPrimitiveCount ( uint32 NumPrimitives, uint32 PrimitiveType )	Computes the vertex count for a given number of primitives of the specified type.
bool	IsAndroidOpenGLESPlatform ( const FStaticShaderPlatform Platfor... )
bool	IsBlockCompressedFormat ( EPixelFormat Format )
bool	IsConsolePlatform ( const FStaticShaderPlatform Platfor... )
bool	IsD3DPlatform ( const FStaticShaderPlatform Platfor... )
bool	IsDepthOrStencilFormat ( EPixelFormat Format )
bool	IsFeatureLevelSupported ( const FStaticShaderPlatform InShade..., ERHIFeatureLevel::Type InFeatureLev... )	Returns true if the feature level is supported by the shader platform.
bool	IsFloatFormat ( EPixelFormat Format )
bool	IsGeometryPipelineShaderFrequency ( EShaderFrequency Frequency )
bool	IsHlslccShaderPlatform ( const FStaticShaderPlatform Platfor... )
constexpr bo...	IsInvalidAccess ( ERHIAccess Access )
bool	IsMetalMobilePlatform ( const FStaticShaderPlatform Platfor... )
bool	IsMetalMobileSM5Platform ( const FStaticShaderPlatform Platfor... )
bool	IsMetalMRTPlatform ( const FStaticShaderPlatform Platfor... )
bool	IsMetalPlatform ( const FStaticShaderPlatform Platfor... )
bool	IsMetalSM5Platform ( const FStaticShaderPlatform Platfor... )
bool	IsMobilePlatform ( const FStaticShaderPlatform Platfor... )	Whether the shader platform corresponds to the ES3.1/Metal/Vulkan feature level.
bool	IsOpenGLPlatform ( const FStaticShaderPlatform Platfor... )
bool	IsPCPlatform ( const FStaticShaderPlatform Platfor... )
bool	IsRayTracingShaderFrequency ( EShaderFrequency Frequency )
bool	IsRDGBufferReferenceShaderParameterType ( EUniformBufferBaseType BaseType )	Returns whether the shader parameter type references an RDG buffer.
bool	IsRDGResourceAccessType ( EUniformBufferBaseType BaseType )	Returns whether the shader parameter type is for RDG access and not actually for shaders.
bool	IsRDGResourceReferenceShaderParameterType ( EUniformBufferBaseType BaseType )	Returns whether the shader parameter type is a reference onto a RDG resource.
bool	IsRDGTextureReferenceShaderParameterType ( EUniformBufferBaseType BaseType )	Returns whether the shader parameter type references an RDG texture.
constexpr bo...	IsReadableAccess ( ERHIAccess Access )
constexpr bo...	IsReadOnlyAccess ( ERHIAccess Access )
bool	IsRHIDeviceAMD()	To trigger GPU specific optimizations and fallbacks
bool	IsRHIDeviceIntel()	To trigger GPU specific optimizations and fallbacks
bool	IsRHIDeviceNVIDIA()	To trigger GPU specific optimizations and fallbacks
bool	IsRunningRHIInDedicatedThread()	Whether the RHI commands are being run on a dedicated thread other than the render thread
bool	IsRunningRHIInSeparateThread()	UE::Trace::FChannel& FORCEINLINE GetRHICommandsChannel() { } Whether the RHI commands are being run in a thread other than the render thread
bool	IsRunningRHIInTaskThread()	Whether the RHI commands are being run on a dedicated thread other than the render thread
bool	IsShaderParameterTypeForUniformBufferLayout ( EUniformBufferBaseType BaseType )	Returns whether the shader parameter type needs to be passdown to RHI through FRHIUniformBufferLayout when creating an uniform buffer.
bool	IsShaderParameterTypeIgnoredByRHI ( EUniformBufferBaseType BaseType )	Returns whether the shader parameter type in FRHIUniformBufferLayout is actually ignored by the RHI.
bool	IsSimulatedPlatform ( const FStaticShaderPlatform Platfor... )	Returns true if the shader platform Platform is used to simulate a mobile feature level on a PC platform.
bool	IsSintFormat ( EPixelFormat Format )
bool	IsSnormFormat ( EPixelFormat Format )
bool	IsStencilFormat ( EPixelFormat Format )
bool	IsSwitchPlatform ( const FStaticShaderPlatform Platfor... )	IsSwitchPlatform() is deprecated; please use DataDrivenShaderPlatformInfo instead.
bool	IsUintFormat ( EPixelFormat Format )
bool	IsUniformBufferStaticSlotValid ( const FUniformBufferStaticSlot Slot )	Returns whether a static uniform buffer slot index is valid.
bool	IsUnormFormat ( EPixelFormat Format )
constexpr bo...	IsValidAccess ( ERHIAccess Access )
bool	IsVulkanMobilePlatform ( const FStaticShaderPlatform Platfor... )
bool	IsVulkanMobileSM5Platform ( const FStaticShaderPlatform Platfor... )
bool	IsVulkanPlatform ( const FStaticShaderPlatform Platfor... )
bool	IsVulkanSM5Platform ( const FStaticShaderPlatform Platfor... )
constexpr bo...	IsWritableAccess ( ERHIAccess Access )
constexpr bo...	IsWriteOnlyAccess ( ERHIAccess Access )
FName	LegacyShaderPlatformToShaderFormat ( EShaderPlatform Platform )
FString	LexToString ( EShaderPlatform Platform )	Stringifies EShaderPlatform
FString	LexToString ( ERHIFeatureLevel::Type Level )	Stringifies ERHIFeatureLevel
constexpr ED...	MakeDepthStencilTargetActions ( const ERenderTargetActions Depth, const ERenderTargetActions Stencil )
ERenderTarge...	MakeRenderTargetActions ( ERenderTargetLoadAction Load, ERenderTargetStoreAction Store )
constexpr bo...	operator! ( ERHITransitionCreateFlags E )
constexpr bo...	operator! ( EResourceTransitionFlags E )
constexpr bo...	operator! ( EUniformBufferBindingFlags E )
constexpr bo...	operator! ( EBufferUsageFlags E )
constexpr bo...	operator! ( ETextureCreateFlags E )
constexpr bo...	operator! ( ERayTracingInstanceFlags E )
constexpr bo...	operator! ( ERayTracingAccelerationStructureFla... )
constexpr bo...	operator! ( FRHITransientAllocationStats::EMemo... )
constexpr bo...	operator! ( ERHIPipeline E )
constexpr bo...	operator! ( ERHIAccess E )
constexpr bo...	operator! ( EApplyRendertargetOption E )
constexpr bo...	operator! ( ERayTracingPipelineCacheFlags E )
constexpr bo...	operator! ( EPixelFormatCapabilities E )
constexpr FR...	operator& ( FRHITransientAllocationStats::EMemo..., FRHITransientAllocationStats::EMemo... )
constexpr ER...	operator& ( ERayTracingAccelerationStructureFla..., ERayTracingAccelerationStructureFla... )
constexpr ER...	operator& ( ERayTracingInstanceFlags Lhs, ERayTracingInstanceFlags Rhs )
constexpr ET...	operator& ( ETextureCreateFlags Lhs, ETextureCreateFlags Rhs )
constexpr EB...	operator& ( EBufferUsageFlags Lhs, EBufferUsageFlags Rhs )
constexpr EU...	operator& ( EUniformBufferBindingFlags Lhs, EUniformBufferBindingFlags Rhs )
constexpr ER...	operator& ( EResourceTransitionFlags Lhs, EResourceTransitionFlags Rhs )
constexpr ER...	operator& ( ERHIAccess Lhs, ERHIAccess Rhs )
constexpr ER...	operator& ( ERHIPipeline Lhs, ERHIPipeline Rhs )
constexpr EP...	operator& ( EPixelFormatCapabilities Lhs, EPixelFormatCapabilities Rhs )
constexpr ER...	operator& ( ERayTracingPipelineCacheFlags Lhs, ERayTracingPipelineCacheFlags Rhs )
constexpr EA...	operator& ( EApplyRendertargetOption Lhs, EApplyRendertargetOption Rhs )
constexpr ER...	operator& ( ERHITransitionCreateFlags Lhs, ERHITransitionCreateFlags Rhs )
EUniformBuff...	operator&= ( EUniformBufferBindingFlags& Lhs, EUniformBufferBindingFlags Rhs )
FRHITransien...	operator&= ( FRHITransientAllocationStats::EMemo..., FRHITransientAllocationStats::EMemo... )
ERayTracingA...	operator&= ( ERayTracingAccelerationStructureFla..., ERayTracingAccelerationStructureFla... )
ERayTracingI...	operator&= ( ERayTracingInstanceFlags& Lhs, ERayTracingInstanceFlags Rhs )
ETextureCrea...	operator&= ( ETextureCreateFlags& Lhs, ETextureCreateFlags Rhs )
EBufferUsage...	operator&= ( EBufferUsageFlags& Lhs, EBufferUsageFlags Rhs )
EResourceTra...	operator&= ( EResourceTransitionFlags& Lhs, EResourceTransitionFlags Rhs )
ERHIAccess &	operator&= ( ERHIAccess& Lhs, ERHIAccess Rhs )
ERHIPipeline...	operator&= ( ERHIPipeline& Lhs, ERHIPipeline Rhs )
EPixelFormat...	operator&= ( EPixelFormatCapabilities& Lhs, EPixelFormatCapabilities Rhs )
ERayTracingP...	operator&= ( ERayTracingPipelineCacheFlags& Lhs, ERayTracingPipelineCacheFlags Rhs )
EApplyRender...	operator&= ( EApplyRendertargetOption& Lhs, EApplyRendertargetOption Rhs )
ERHITransiti...	operator&= ( ERHITransitionCreateFlags& Lhs, ERHITransitionCreateFlags Rhs )
constexpr ER...	operator^ ( ERayTracingAccelerationStructureFla..., ERayTracingAccelerationStructureFla... )
constexpr EU...	operator^ ( EUniformBufferBindingFlags Lhs, EUniformBufferBindingFlags Rhs )
constexpr ER...	operator^ ( ERayTracingInstanceFlags Lhs, ERayTracingInstanceFlags Rhs )
constexpr ET...	operator^ ( ETextureCreateFlags Lhs, ETextureCreateFlags Rhs )
constexpr EB...	operator^ ( EBufferUsageFlags Lhs, EBufferUsageFlags Rhs )
constexpr ER...	operator^ ( EResourceTransitionFlags Lhs, EResourceTransitionFlags Rhs )
constexpr FR...	operator^ ( FRHITransientAllocationStats::EMemo..., FRHITransientAllocationStats::EMemo... )
constexpr ER...	operator^ ( ERHIAccess Lhs, ERHIAccess Rhs )
constexpr ER...	operator^ ( ERHIPipeline Lhs, ERHIPipeline Rhs )
constexpr EP...	operator^ ( EPixelFormatCapabilities Lhs, EPixelFormatCapabilities Rhs )
constexpr ER...	operator^ ( ERayTracingPipelineCacheFlags Lhs, ERayTracingPipelineCacheFlags Rhs )
constexpr EA...	operator^ ( EApplyRendertargetOption Lhs, EApplyRendertargetOption Rhs )
constexpr ER...	operator^ ( ERHITransitionCreateFlags Lhs, ERHITransitionCreateFlags Rhs )
EApplyRender...	operator^= ( EApplyRendertargetOption& Lhs, EApplyRendertargetOption Rhs )
ERayTracingP...	operator^= ( ERayTracingPipelineCacheFlags& Lhs, ERayTracingPipelineCacheFlags Rhs )
EUniformBuff...	operator^= ( EUniformBufferBindingFlags& Lhs, EUniformBufferBindingFlags Rhs )
ERHIPipeline...	operator^= ( ERHIPipeline& Lhs, ERHIPipeline Rhs )
FRHITransien...	operator^= ( FRHITransientAllocationStats::EMemo..., FRHITransientAllocationStats::EMemo... )
ERayTracingA...	operator^= ( ERayTracingAccelerationStructureFla..., ERayTracingAccelerationStructureFla... )
ETextureCrea...	operator^= ( ETextureCreateFlags& Lhs, ETextureCreateFlags Rhs )
EBufferUsage...	operator^= ( EBufferUsageFlags& Lhs, EBufferUsageFlags Rhs )
ERayTracingI...	operator^= ( ERayTracingInstanceFlags& Lhs, ERayTracingInstanceFlags Rhs )
EResourceTra...	operator^= ( EResourceTransitionFlags& Lhs, EResourceTransitionFlags Rhs )
ERHITransiti...	operator^= ( ERHITransitionCreateFlags& Lhs, ERHITransitionCreateFlags Rhs )
EPixelFormat...	operator^= ( EPixelFormatCapabilities& Lhs, EPixelFormatCapabilities Rhs )
ERHIAccess &	operator^= ( ERHIAccess& Lhs, ERHIAccess Rhs )
constexpr EU...	operator\| ( EUniformBufferBindingFlags Lhs, EUniformBufferBindingFlags Rhs )
constexpr ER...	operator\| ( ERayTracingAccelerationStructureFla..., ERayTracingAccelerationStructureFla... )
constexpr ER...	operator\| ( ERayTracingInstanceFlags Lhs, ERayTracingInstanceFlags Rhs )
constexpr ET...	operator\| ( ETextureCreateFlags Lhs, ETextureCreateFlags Rhs )
constexpr EB...	operator\| ( EBufferUsageFlags Lhs, EBufferUsageFlags Rhs )
constexpr FR...	operator\| ( FRHITransientAllocationStats::EMemo..., FRHITransientAllocationStats::EMemo... )
constexpr ER...	operator\| ( EResourceTransitionFlags Lhs, EResourceTransitionFlags Rhs )
constexpr ER...	operator\| ( ERHIPipeline Lhs, ERHIPipeline Rhs )
constexpr ER...	operator\| ( ERHIAccess Lhs, ERHIAccess Rhs )
constexpr EP...	operator\| ( EPixelFormatCapabilities Lhs, EPixelFormatCapabilities Rhs )
constexpr ER...	operator\| ( ERayTracingPipelineCacheFlags Lhs, ERayTracingPipelineCacheFlags Rhs )
constexpr EA...	operator\| ( EApplyRendertargetOption Lhs, EApplyRendertargetOption Rhs )
constexpr ER...	operator\| ( ERHITransitionCreateFlags Lhs, ERHITransitionCreateFlags Rhs )
ERayTracingI...	operator\|= ( ERayTracingInstanceFlags& Lhs, ERayTracingInstanceFlags Rhs )
EUniformBuff...	operator\|= ( EUniformBufferBindingFlags& Lhs, EUniformBufferBindingFlags Rhs )
ERayTracingA...	operator\|= ( ERayTracingAccelerationStructureFla..., ERayTracingAccelerationStructureFla... )
FRHITransien...	operator\|= ( FRHITransientAllocationStats::EMemo..., FRHITransientAllocationStats::EMemo... )
ETextureCrea...	operator\|= ( ETextureCreateFlags& Lhs, ETextureCreateFlags Rhs )
EBufferUsage...	operator\|= ( EBufferUsageFlags& Lhs, EBufferUsageFlags Rhs )
EResourceTra...	operator\|= ( EResourceTransitionFlags& Lhs, EResourceTransitionFlags Rhs )
EApplyRender...	operator\|= ( EApplyRendertargetOption& Lhs, EApplyRendertargetOption Rhs )
ERHIAccess &	operator\|= ( ERHIAccess& Lhs, ERHIAccess Rhs )
ERHIPipeline...	operator\|= ( ERHIPipeline& Lhs, ERHIPipeline Rhs )
EPixelFormat...	operator\|= ( EPixelFormatCapabilities& Lhs, EPixelFormatCapabilities Rhs )
ERayTracingP...	operator\|= ( ERayTracingPipelineCacheFlags& Lhs, ERayTracingPipelineCacheFlags Rhs )
ERHITransiti...	operator\|= ( ERHITransitionCreateFlags& Lhs, ERHITransitionCreateFlags Rhs )
constexpr EU...	operator~ ( EUniformBufferBindingFlags E )
constexpr ER...	operator~ ( EResourceTransitionFlags E )
constexpr ER...	operator~ ( ERHITransitionCreateFlags E )
constexpr ER...	operator~ ( ERHIAccess E )
constexpr FR...	operator~ ( FRHITransientAllocationStats::EMemo... )
constexpr ER...	operator~ ( ERayTracingAccelerationStructureFla... )
constexpr ER...	operator~ ( ERHIPipeline E )
constexpr ER...	operator~ ( ERayTracingPipelineCacheFlags E )
constexpr EA...	operator~ ( EApplyRendertargetOption E )
constexpr ET...	operator~ ( ETextureCreateFlags E )
constexpr ER...	operator~ ( ERayTracingInstanceFlags E )
constexpr EP...	operator~ ( EPixelFormatCapabilities E )
constexpr EB...	operator~ ( EBufferUsageFlags E )
bool	operator== ( const FRHIUniformBufferResource& A, const FRHIUniformBufferResource& B )	Compare two uniform buffer layout resources.
bool	operator== ( const FRHIUniformBufferLayoutInitia..., const FRHIUniformBufferLayoutInitia... )	Compare two uniform buffer layout initializers.
bool	operator== ( const FRHIUniformBufferLayout& A, const FRHIUniformBufferLayout& B )	Compare two uniform buffer layouts.
void	PipelineStateCache::FlushResources()	Evicts unused state entries based on r.pso.evictiontime time.
FComputePipe...	PipelineStateCache::GetAndOrCreateComputePipelineState ( FRHIComputeCommandList& RHICmdList, FRHIComputeShader* ComputeShad..., bool bFromFileCache )
FGraphicsPip...	PipelineStateCache::GetAndOrCreateGraphicsPipelineState ( FRHICommandList& RHICmdList, const FGraphicsPipelineStateInitial..., EApplyRendertargetOption ApplyFlags )
FRayTracingP...	PipelineStateCache::GetAndOrCreateRayTracingPipelineState ( FRHICommandList& RHICmdList, const FRayTracingPipelineStateIniti..., ERayTracingPipelineCacheFlags Flags )	Retrieves RTPSO object from cache or adds a task to create it, which will be waited on by RHI thread.
FRHIVertexDe...	PipelineStateCache::GetOrCreateVertexDeclaration ( const FVertexDeclarationElementList... )
FRayTracingP...	PipelineStateCache::GetRayTracingPipelineState ( const FRayTracingPipelineStateSigna... )	Retrieves RTPSO object from cache or returns NULL if it's not found.
void	PipelineStateCache::ReportFrameHitchToCSV()
uint64	PipelineStateCache::RetrieveGraphicsPipelineStateSortKey ( const FGraphicsPipelineState* ... )
void	PipelineStateCache::Shutdown()	Clears all pipeline cached state.
FDynamicRHI ...	PlatformCreateDynamicRHI()	Each platform that utilizes dynamic RHIs should implement this function Called to create the instance of the dynamic RHI.
void	RHIAcquireThreadOwnership()
void	RHIAcquireTransientResource ( FRHIBuffer* )	RHIAcquireTransientResource API is deprecated; use IRHITransientResourceAllocator instead.
void	RHIAcquireTransientResource ( FRHITexture* )	RHIAcquireTransientResource API is deprecated; use IRHITransientResourceAllocator instead.
void	RHIAdvanceFrameForGetViewportBackBuffer ( FRHIViewport* Viewport )
FBufferRHIRe...	RHIAsyncCreateIndexBuffer ( uint32 Stride, uint32 Size, EBufferUsageFlags InUsage, FRHIResourceCreateInfo& CreateInfo )
FBufferRHIRe...	RHIAsyncCreateIndexBuffer ( uint32 Stride, uint32 Size, EBufferUsageFlags InUsage, ERHIAccess InResourceState, FRHIResourceCreateInfo& CreateInfo )
FTexture2DRH...	RHIAsyncCreateTexture2D ( uint32 SizeX, uint32 SizeY, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, void** InitialMipData, uint32 NumInitialMips )
FTexture2DRH...	RHIAsyncCreateTexture2D ( uint32 SizeX, uint32 SizeY, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ERHIAccess InResourceState, void** InitialMipData, uint32 NumInitialMips )
FBufferRHIRe...	RHIAsyncCreateVertexBuffer ( uint32 Size, EBufferUsageFlags InUsage, FRHIResourceCreateInfo& CreateInfo )
FBufferRHIRe...	RHIAsyncCreateVertexBuffer ( uint32 Size, EBufferUsageFlags InUsage, ERHIAccess InResourceState, FRHIResourceCreateInfo& CreateInfo )
FTexture2DRH...	RHIAsyncReallocateTexture2D ( FRHITexture2D* Texture2D, int32 NewMipCount, int32 NewSizeX, int32 NewSizeY, FThreadSafeCounter* RequestSta... )
void	RHIBeginSuspendRendering()
FUpdateTextu...	RHIBeginUpdateTexture3D ( FRHITexture3D* Texture, uint32 MipIndex, const FUpdateTextureRegion3D& Upda... )
void	RHIBindDebugLabelName ( FRHITexture* Texture, const TCHAR* Name )
void	RHIBindDebugLabelName ( FRHIBuffer* Buffer, const TCHAR* Name )
void	RHIBindDebugLabelName ( FRHIUnorderedAccessView* Unord..., const TCHAR* Name )
uint64	RHICalcTexture2DArrayPlatformSize ( uint32 SizeX, uint32 SizeY, uint32 ArraySize, uint8 Format, uint32 NumMips, uint32 NumSamples, ETextureCreateFlags Flags, const FRHIResourceCreateInfo& Crea..., uint32& OutAlign )
uint64	RHICalcTexture2DPlatformSize ( uint32 SizeX, uint32 SizeY, uint8 Format, uint32 NumMips, uint32 NumSamples, ETextureCreateFlags Flags, const FRHIResourceCreateInfo& Crea..., uint32& OutAlign )
uint64	RHICalcTexture3DPlatformSize ( uint32 SizeX, uint32 SizeY, uint32 SizeZ, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, const FRHIResourceCreateInfo& Crea..., uint32& OutAlign )
uint64	RHICalcTextureCubePlatformSize ( uint32 Size, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, const FRHIResourceCreateInfo& Crea..., uint32& OutAlign )
uint64	RHICalcVMTexture2DPlatformSize ( uint32 Mip0Width, uint32 Mip0Height, uint8 Format, uint32 NumMips, uint32 FirstMipIdx, uint32 NumSamples, ETextureCreateFlags Flags, uint32& OutAlign )
ETextureReal...	RHICancelAsyncReallocateTexture2D ( FRHITexture2D* Texture2D, bool bBlockUntilCompleted )
void	RHICheckViewportHDRStatus ( FRHIViewport* Viewport )
void	RHICompleteGraphEventOnFlip ( uint64 PresentIndex, FGraphEventRef Event )	Signals the completion of the specified task graph event when the given frame has flipped.
uint32	RHIComputeMemorySize ( FRHITexture* TextureRHI )
EGpuVendorId	RHIConvertToGpuVendorId ( uint32 VendorId )
void	RHICopySharedMips ( FRHITexture2D* DestTexture2D, FRHITexture2D* SrcTexture2D )
FAmplificati...	RHICreateAmplificationShader ( TArrayView< const uint8 > Code, const FSHAHash& Hash )
FBufferRHIRe...	RHICreateAndLockIndexBuffer ( uint32 Stride, uint32 Size, EBufferUsageFlags InUsage, FRHIResourceCreateInfo& CreateInfo, void*& OutDataBuffer )	Use RHICreateBuffer() and RHILockBuffer() instead.
FBufferRHIRe...	RHICreateAndLockVertexBuffer ( uint32 Size, EBufferUsageFlags InUsage, FRHIResourceCreateInfo& CreateInfo, void*& OutDataBuffer )	Use RHICreateBuffer() and RHILockBuffer() instead.
FBlendStateR...	RHICreateBlendState ( const FBlendStateInitializerRHI& I... )
FBoundShader...	RHICreateBoundShaderState ( FRHIVertexDeclaration* VertexD..., FRHIVertexShader* VertexShader, FRHIPixelShader* PixelShader, FRHIGeometryShader* GeometrySh... )
FBoundShader...	RHICreateBoundShaderState ( FRHIVertexDeclaration* VertexD..., FRHIVertexShader* VertexShader, FRHIPixelShader* PixelShader, FRHIGeometryShader* GeometrySh... )
FBufferRHIRe...	RHICreateBuffer ( uint32 Size, EBufferUsageFlags Usage, uint32 Stride, ERHIAccess ResourceState, FRHIResourceCreateInfo& CreateInfo )
FComputeFenc...	RHICreateComputeFence ( const FName& Name )
TRefCountPtr...	RHICreateComputePipelineState ( FRHIComputeShader* ComputeShad... )
FComputeShad...	RHICreateComputeShader ( TArrayView< const uint8 > Code, const FSHAHash& Hash )
FDepthStenci...	RHICreateDepthStencilState ( const FDepthStencilStateInitializer... )
FGeometrySha...	RHICreateGeometryShader ( TArrayView< const uint8 > Code, const FSHAHash& Hash )
FGPUFenceRHI...	RHICreateGPUFence ( const FName& Name )
FGraphicsPip...	RHICreateGraphicsPipelineState ( const FGraphicsPipelineStateInitial... )	Before using this directly go through PipelineStateCache::GetAndOrCreateGraphicsPipelineState()
FBufferRHIRe...	RHICreateIndexBuffer ( uint32 Stride, uint32 Size, EBufferUsageFlags InUsage, FRHIResourceCreateInfo& CreateInfo )
FBufferRHIRe...	RHICreateIndexBuffer ( uint32 Stride, uint32 Size, EBufferUsageFlags InUsage, ERHIAccess InResourceState, FRHIResourceCreateInfo& CreateInfo )
FBufferRHIRe...	RHICreateIndexBuffer ( uint32 Stride, uint32 Size, uint32 InUsage, FRHIResourceCreateInfo& CreateInfo )	Forward declare RHI creation function so they can still be called from the deprecated immediate command list resource creation functions.
FMeshShaderR...	RHICreateMeshShader ( TArrayView< const uint8 > Code, const FSHAHash& Hash )
FPixelShader...	RHICreatePixelShader ( TArrayView< const uint8 > Code, const FSHAHash& Hash )
FRasterizerS...	RHICreateRasterizerState ( const FRasterizerStateInitializerRH... )
FRenderQuery...	RHICreateRenderQuery ( ERenderQueryType QueryType )	CreateRenderQuery API is deprecated; use RHICreateRenderQueryPool and suballocate queries there
FRenderQuery...	RHICreateRenderQueryPool ( ERenderQueryType QueryType, uint32 NumQueries )
FSamplerStat...	RHICreateSamplerState ( const FSamplerStateInitializerRHI&... )
FRHIShaderLi...	RHICreateShaderLibrary ( EShaderPlatform Platform, FString const& FilePath, FString const& Name )
FShaderResou...	RHICreateShaderResourceView ( FRHITexture* Texture, const FRHITextureSRVCreateInfo& Cr... )
FShaderResou...	RHICreateShaderResourceView ( FRHITexture* Texture, uint8 MipLevel, uint8 NumMipLevels, EPixelFormat Format )
FShaderResou...	RHICreateShaderResourceView ( FRHIBuffer* Buffer, uint32 Stride, uint8 Format )
FShaderResou...	RHICreateShaderResourceView ( FRHITexture* Texture, uint8 MipLevel )
FShaderResou...	RHICreateShaderResourceView ( const FShaderResourceViewInitialize... )
FShaderResou...	RHICreateShaderResourceView ( FRHIBuffer* Buffer )
FShaderResou...	RHICreateShaderResourceViewFMask ( FRHITexture2D* Texture2D )
FShaderResou...	RHICreateShaderResourceViewHTile ( FRHITexture2D* RenderTarget )
FShaderResou...	RHICreateShaderResourceViewWriteMask ( FRHITexture2D* Texture2D )
FStagingBuff...	RHICreateStagingBuffer()
FBufferRHIRe...	RHICreateStructuredBuffer ( uint32 Stride, uint32 Size, EBufferUsageFlags InUsage, ERHIAccess InResourceState, FRHIResourceCreateInfo& CreateInfo )
FBufferRHIRe...	RHICreateStructuredBuffer ( uint32 Stride, uint32 Size, EBufferUsageFlags InUsage, FRHIResourceCreateInfo& CreateInfo )
FBufferRHIRe...	RHICreateStructuredBuffer ( uint32 Stride, uint32 Size, uint32 InUsage, FRHIResourceCreateInfo& CreateInfo )
void	RHICreateTargetableShaderResource2D ( uint32 SizeX, uint32 SizeY, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ETextureCreateFlags TargetableTextu..., bool bForceSeparateTargetAndShaderR..., bool bForceSharedTargetAndShaderRes..., FRHIResourceCreateInfo& CreateInfo, FTexture2DRHIRef& OutTargetableTex..., FTexture2DRHIRef& OutShaderResourc..., uint32 NumSamples )	Creates 1 or 2 textures with the same dimensions/format.
void	RHICreateTargetableShaderResource2D ( uint32 SizeX, uint32 SizeY, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ETextureCreateFlags TargetableTextu..., bool bForceSeparateTargetAndShaderR..., FRHIResourceCreateInfo& CreateInfo, FTexture2DRHIRef& OutTargetableTex..., FTexture2DRHIRef& OutShaderResourc..., uint32 NumSamples )
void	RHICreateTargetableShaderResource2DArray ( uint32 SizeX, uint32 SizeY, uint32 SizeZ, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ETextureCreateFlags TargetableTextu..., bool bForceSeparateTargetAndShaderR..., bool bForceSharedTargetAndShaderRes..., FRHIResourceCreateInfo& CreateInfo, FTexture2DArrayRHIRef& OutTargetab..., FTexture2DArrayRHIRef& OutShaderRe..., uint32 NumSamples )
void	RHICreateTargetableShaderResource2DArray ( uint32 SizeX, uint32 SizeY, uint32 SizeZ, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ETextureCreateFlags TargetableTextu..., FRHIResourceCreateInfo& CreateInfo, FTexture2DArrayRHIRef& OutTargetab..., FTexture2DArrayRHIRef& OutShaderRe..., uint32 NumSamples )
void	RHICreateTargetableShaderResource3D ( uint32 SizeX, uint32 SizeY, uint32 SizeZ, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ETextureCreateFlags TargetableTextu..., bool bForceSeparateTargetAndShaderR..., FRHIResourceCreateInfo& CreateInfo, FTexture3DRHIRef& OutTargetableTex..., FTexture3DRHIRef& OutShaderResourc... )	Creates 1 or 2 textures with the same dimensions/format.
void	RHICreateTargetableShaderResourceCube ( uint32 LinearSize, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ETextureCreateFlags TargetableTextu..., bool bForceSeparateTargetAndShaderR..., FRHIResourceCreateInfo& CreateInfo, FTextureCubeRHIRef& OutTargetableT..., FTextureCubeRHIRef& OutShaderResou... )	Creates 1 or 2 textures with the same dimensions/format.
void	RHICreateTargetableShaderResourceCubeArray ( uint32 LinearSize, uint32 ArraySize, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ETextureCreateFlags TargetableTextu..., bool bForceSeparateTargetAndShaderR..., FRHIResourceCreateInfo& CreateInfo, FTextureCubeRHIRef& OutTargetableT..., FTextureCubeRHIRef& OutShaderResou... )	Creates 1 or 2 textures with the same dimensions/format.
FTexture2DRH...	RHICreateTexture2D ( uint32 SizeX, uint32 SizeY, uint8 Format, uint32 NumMips, uint32 NumSamples, ETextureCreateFlags Flags, FRHIResourceCreateInfo& CreateInfo )
FTexture2DRH...	RHICreateTexture2D ( uint32 SizeX, uint32 SizeY, uint8 Format, uint32 NumMips, uint32 NumSamples, ETextureCreateFlags Flags, ERHIAccess InResourceState, FRHIResourceCreateInfo& CreateInfo )
FTexture2DAr...	RHICreateTexture2DArray ( uint32 SizeX, uint32 SizeY, uint32 SizeZ, uint8 Format, uint32 NumMips, uint32 NumSamples, ETextureCreateFlags Flags, FRHIResourceCreateInfo& CreateInfo )
FTexture2DAr...	RHICreateTexture2DArray ( uint32 SizeX, uint32 SizeY, uint32 SizeZ, uint8 Format, uint32 NumMips, uint32 NumSamples, ETextureCreateFlags Flags, ERHIAccess InResourceState, FRHIResourceCreateInfo& CreateInfo )
FTexture3DRH...	RHICreateTexture3D ( uint32 SizeX, uint32 SizeY, uint32 SizeZ, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, FRHIResourceCreateInfo& CreateInfo )
FTexture3DRH...	RHICreateTexture3D ( uint32 SizeX, uint32 SizeY, uint32 SizeZ, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ERHIAccess ResourceState, FRHIResourceCreateInfo& CreateInfo )
FTextureCube...	RHICreateTextureCube ( uint32 Size, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ERHIAccess InResourceState, FRHIResourceCreateInfo& CreateInfo )
FTextureCube...	RHICreateTextureCube ( uint32 Size, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, FRHIResourceCreateInfo& CreateInfo )
FTextureCube...	RHICreateTextureCubeArray ( uint32 Size, uint32 ArraySize, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, ERHIAccess InResourceState, FRHIResourceCreateInfo& CreateInfo )
FTextureCube...	RHICreateTextureCubeArray ( uint32 Size, uint32 ArraySize, uint8 Format, uint32 NumMips, ETextureCreateFlags Flags, FRHIResourceCreateInfo& CreateInfo )
FTexture2DRH...	RHICreateTextureExternal2D ( uint32 SizeX, uint32 SizeY, uint8 Format, uint32 NumMips, uint32 NumSamples, ETextureCreateFlags Flags, ERHIAccess InResourceState, FRHIResourceCreateInfo& CreateInfo )
FTexture2DRH...	RHICreateTextureExternal2D ( uint32 SizeX, uint32 SizeY, uint8 Format, uint32 NumMips, uint32 NumSamples, ETextureCreateFlags Flags, FRHIResourceCreateInfo& CreateInfo )
FTextureRefe...	RHICreateTextureReference ( FLastRenderTimeContainer* Last... )
IRHITransien...	RHICreateTransientResourceAllocator()
const FRHITr...	RHICreateTransition ( const FRHITransitionCreateInfo& Cr... )
const FRHITr...	RHICreateTransition ( ERHIPipeline SrcPipelines, ERHIPipeline DstPipelines, ERHITransitionCreateFlags CreateFla..., TArrayView< const FRHITransitionInf... )	Use the FRHITransitionCreateInfo version of RHICreateTransition instead.
FUniformBuff...	RHICreateUniformBuffer ( const void* Contents, const FRHIUniformBufferLayout& Lay..., EUniformBufferUsage Usage, EUniformBufferValidation Validation )	Use Layout pointers instead
FUniformBuff...	RHICreateUniformBuffer ( const void* Contents, const FRHIUniformBufferLayout*..., EUniformBufferUsage Usage, EUniformBufferValidation Validation )
FUniformBuff...	RHICreateUniformBufferLayout ( const FRHIUniformBufferLayoutInitia... )
FUnorderedAc...	RHICreateUnorderedAccessView ( FRHIBuffer* Buffer, uint8 Format )
FUnorderedAc...	RHICreateUnorderedAccessView ( FRHIBuffer* Buffer, bool bUseUAVCounter, bool bAppendBuffer )
FUnorderedAc...	RHICreateUnorderedAccessView ( FRHITexture* Texture, uint32 MipLevel, uint8 Format, uint16 FirstArraySlice, uint16 NumArraySlices )
FUnorderedAc...	RHICreateUnorderedAccessView ( FRHITexture* Texture, uint32 MipLevel, uint16 FirstArraySlice, uint16 NumArraySlices )
FUnorderedAc...	RHICreateUnorderedAccessViewHTile ( FRHITexture2D* RenderTarget )
FUnorderedAc...	RHICreateUnorderedAccessViewStencil ( FRHITexture2D* DepthTarget, int32 MipLevel )
FBufferRHIRe...	RHICreateVertexBuffer ( uint32 Size, EBufferUsageFlags InUsage, ERHIAccess InResourceState, FRHIResourceCreateInfo& CreateInfo )
FBufferRHIRe...	RHICreateVertexBuffer ( uint32 Size, EBufferUsageFlags InUsage, FRHIResourceCreateInfo& CreateInfo )
FBufferRHIRe...	RHICreateVertexBuffer ( uint32 Size, uint32 InUsage, FRHIResourceCreateInfo& CreateInfo )
FVertexDecla...	RHICreateVertexDeclaration ( const FVertexDeclarationElementList... )	Before using this directly go through PipelineStateCache::GetOrCreateVertexDeclaration()
FVertexShade...	RHICreateVertexShader ( TArrayView< const uint8 > Code, const FSHAHash& Hash )
FViewportRHI...	RHICreateViewport ( void* WindowHandle, uint32 SizeX, uint32 SizeY, bool bIsFullscreen, EPixelFormat PreferredPixelFormat )
void	RHIDiscardTransientResource ( FRHITexture* )	RHIDiscardTransientResource API is deprecated; use IRHITransientResourceAllocator instead.
void	RHIDiscardTransientResource ( FRHIBuffer* )	RHIDiscardTransientResource API is deprecated; use IRHITransientResourceAllocator instead.
void	RHIEndMultiUpdateTexture3D ( TArray< FUpdateTexture3DData >& Up... )
void	RHIEndUpdateTexture3D ( FUpdateTexture3DData& UpdateData )
void	RHIExecuteCommandList ( FRHICommandList* CmdList )
void	RHIExit()	Shuts down the RHI.
ETextureReal...	RHIFinalizeAsyncReallocateTexture2D ( FRHITexture2D* Texture2D, bool bBlockUntilCompleted )
void	RHIFlushResources()
bool	RHIGetAvailableResolutions ( FScreenResolutionArray& Resolution..., bool bIgnoreRefreshRate )
EColorSpaceA...	RHIGetColorSpace ( FRHIViewport* Viewport )
IRHICommandC...	RHIGetCommandContextContainer ( int32 Index, int32 Num, FRHIGPUMask GPUMask )
IRHIComputeC...	RHIGetDefaultAsyncComputeContext()
IRHICommandC...	RHIGetDefaultContext()
ERHIAccess	RHIGetDefaultResourceState ( ETextureCreateFlags InUsage, bool bInHasInitialData )
ERHIAccess	RHIGetDefaultResourceState ( EBufferUsageFlags InUsage, bool bInHasInitialData )	Get the best default resource state for the given buffer creation flags
ERHIAccess	RHIGetDefaultResourceState ( ETextureCreateFlags InUsage, bool bInHasInitialData )	Get the best default resource state for the given texture creation flags
ERHIAccess	RHIGetDefaultResourceState ( EBufferUsageFlags InUsage, bool bInHasInitialData )	Get the best default resource state for the given buffer creation flags
uint32	RHIGetGPUFrameCycles ( uint32 GPUIndex )
uint32	RHIGetHTilePlatformConfig ( uint32 DepthWidth, uint32 DepthHeight )
uint32	RHIGetMetalShaderLanguageVersion ( const FStaticShaderPlatform Platfor... )	Helper to return the shader language version for Metal shader.
uint64	RHIGetMinimumAlignmentForBufferBackedSRV ( EPixelFormat Format )
void *	RHIGetNativeCommandBuffer()
void *	RHIGetNativeComputeQueue()
void *	RHIGetNativeDevice()
void *	RHIGetNativeGraphicsQueue()
void *	RHIGetNativeInstance()
void *	RHIGetNativePhysicalDevice()
FRHIPanicEve...	RHIGetPanicDelegate()
int32	RHIGetPreferredClearUAVRectPSResourceType ( const FStaticShaderPlatform Platfor... )	Helper to check which resource type should be used for clear (UAV) replacement shaders.
void	RHIGetPresentThresholds ( float& OutTopPercent, float& OutBottomPercent )	Returns the top and bottom vsync present thresholds (the values of rhi.PresentThreshold.Top and rhi.PresentThreshold.Bottom)
bool	RHIGetPreviewFeatureLevel ( ERHIFeatureLevel::Type& PreviewFea... )	Helper to check if a preview feature level has been requested.
bool	RHIGetRenderQueryResult ( FRHIRenderQuery* RenderQuery, uint64& OutResult, bool bWait, uint32 GPUIndex )
void	RHIGetResourceInfo ( FRHITexture* Ref, FRHIResourceInfo& OutInfo )	RHIGetResourceInfo is no longer implemented in favor of FRHIResource::GetResourceInfo.
void	RHIGetSupportedResolution ( uint32& Width, uint32& Height )
uint32	RHIGetSyncInterval()	Returns the value of the rhi.SyncInterval CVar.
float	RHIGetSyncSlackMS()	Returns the value of the rhi.SyncSlackMS CVar or length of a full frame interval if the frame offset system is disabled.
void	RHIGetTextureMemoryStats ( FTextureMemoryStats& OutStats )
FTexture2DRH...	RHIGetViewportBackBuffer ( FRHIViewport* Viewport )
uint32	RHIGetViewportNextPresentGPUIndex ( FRHIViewport* Viewport )
bool	RHIHasTiledGPU ( const FStaticShaderPlatform Platfor... )
void	RHIInit ( bool bHasEditorToken )	RHI memory stats.
void	RHIInitDefaultPixelFormatCapabilities()	Initialize the 'best guess' pixel format capabilities.
void	RHIInitializeFlipTracking()
bool	RHIIsTypedUAVLoadSupported ( EPixelFormat InFormat )
bool	RHIIsTypedUAVStoreSupported ( EPixelFormat InFormat )
void *	RHILockBuffer ( FRHIBuffer* Buffer, uint32 Offset, uint32 SizeRHI, EResourceLockMode LockMode )
void *	RHILockIndexBuffer ( FRHIBuffer* IndexBuffer, uint32 Offset, uint32 Size, EResourceLockMode LockMode )	Buffer locks have been unified. Use RHILockBuffer() instead.
void *	RHILockStagingBuffer ( FRHIStagingBuffer* StagingBuff..., FRHIGPUFence* Fence, uint32 Offset, uint32 Size )
void *	RHILockStagingBuffer ( FRHIStagingBuffer* StagingBuff..., uint32 Offset, uint32 Size )
void *	RHILockStructuredBuffer ( FRHIBuffer* StructuredBuffer, uint32 Offset, uint32 SizeRHI, EResourceLockMode LockMode )	Buffer locks have been unified. Use RHILockBuffer() instead.
void *	RHILockTexture2D ( FRHITexture2D* Texture, uint32 MipIndex, EResourceLockMode LockMode, uint32& DestStride, bool bLockWithinMiptail, bool bFlushRHIThread )
void *	RHILockTexture2DArray ( FRHITexture2DArray* Texture, uint32 TextureIndex, uint32 MipIndex, EResourceLockMode LockMode, uint32& DestStride, bool bLockWithinMiptail )
void *	RHILockTextureCubeFace ( FRHITextureCube* Texture, uint32 FaceIndex, uint32 ArrayIndex, uint32 MipIndex, EResourceLockMode LockMode, uint32& DestStride, bool bLockWithinMiptail )
void *	RHILockVertexBuffer ( FRHIBuffer* VertexBuffer, uint32 Offset, uint32 SizeRHI, EResourceLockMode LockMode )	Buffer locks have been unified. Use RHILockBuffer() instead.
uint32	RHIMaxMeshShaderThreadGroupSize ( const FStaticShaderPlatform Platfor... )
bool	RHINeedsToSwitchVerticalAxis ( const FStaticShaderPlatform Platfor... )
bool	RHIPixelFormatHasCapabilities ( EPixelFormat InFormat, EPixelFormatCapabilities InCapabili... )
void	RHIPostInit ( const TArray< uint32 >& InPixelFor... )	Performs additional RHI initialization before the render thread starts.
EPixelFormat	RHIPreferredPixelFormatHint ( EPixelFormat PreferredPixelFormat )	Helper to check if preferred EPixelFormat is supported, return one if it is not
void	RHIPrivateBeginFrame()	Called once per frame only from within an RHI.
void	RHIReleaseThreadOwnership()
void	RHIReleaseTransition ( FRHITransition* Transition )
bool	RHIRequiresComputeGenerateMips()
void	RHIResizeViewport ( FRHIViewport* Viewport, uint32 SizeX, uint32 SizeY, bool bIsFullscreen, EPixelFormat PreferredPixelFormat )
void	RHIResumeRendering()
void	RHISetFrameDebugInfo ( uint64 PresentIndex, uint64 FrameIndex, uint64 InputTime )	Sets the FrameIndex and InputTime for the current frame.
void	RHISetMobilePreviewFeatureLevel ( ERHIFeatureLevel::Type MobilePrevie... )	Set runtime selection of mobile feature level preview.
void	RHIShutdownFlipTracking()
bool	RHISupports4ComponentUAVReadWrite ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsAbsoluteVertexID ( const FStaticShaderPlatform InShade... )	Returns true if SV_VertexID contains BaseVertexIndex passed to the draw call, false if shaders must manually construct an absolute VertexID.
bool	RHISupportsBufferLoadTypeConversion ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsComputeShaders ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsConservativeRasterization ( const FStaticShaderPlatform Platfor... )	True if the given shader platform supports overestimated conservative rasterization
bool	RHISupportsDualSourceBlending ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsGeometryShaders ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsIndexBufferUAVs ( const FStaticShaderPlatform Platfor... )	Helper to check that the shader platform supports creating a UAV off an index buffer.
bool	RHISupportsInlineRayTracing ( const FStaticShaderPlatform Platfor... )	Whether this platform can compile shaders with inline ray tracing features.
bool	RHISupportsInstancedStereo ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsManualVertexFetch ( const FStaticShaderPlatform InShade... )	Whether Manual Vertex Fetch is supported for the specified shader platform.
bool	RHISupportsMeshShadersTier0 ( const FStaticShaderPlatform Platfor... )	Can this platform compile mesh shaders with tier0 capability.
bool	RHISupportsMeshShadersTier1 ( const FStaticShaderPlatform Platfor... )	Can this platform compile mesh shaders with tier1 capability.
bool	RHISupportsMobileMultiView ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsMSAA ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsMultiView ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsNativeShaderLibraries ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsRayTracing ( const FStaticShaderPlatform Platfor... )	Whether this platform can build acceleration structures and use full ray tracing pipelines or inline ray tracing (ray queries).
bool	RHISupportsRayTracingShaders ( const FStaticShaderPlatform Platfor... )	Whether this platform can compile ray tracing shaders (regardless of project settings).
bool	RHISupportsRenderTargetWriteMask ( const FStaticShaderPlatform Platfor... )	True if the given shader platform supports a render target write mask
bool	RHISupportsSeparateMSAAAndResolveTextures ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsShaderPipelines ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsVertexShaderLayer ( const FStaticShaderPlatform Platfor... )
bool	RHISupportsVolumeTextures ( const FStaticFeatureLevel FeatureLe... )	Whether the platform supports reading from volume textures (does not cover rendering to volume textures).
bool	RHISupportsWaveOperations ( const FStaticShaderPlatform Platfor... )	Can this platform compile shaders that use shader model 6.0 wave intrinsics.
void	RHISuspendRendering()
void	RHITick ( float DeltaTime )
void	RHIUnlockBuffer ( FRHIBuffer* Buffer )
void	RHIUnlockIndexBuffer ( FRHIBuffer* IndexBuffer )	Buffer locks have been unified. Use RHIUnlockBuffer() instead.
void	RHIUnlockStagingBuffer ( FRHIStagingBuffer* StagingBuff... )
void	RHIUnlockStructuredBuffer ( FRHIBuffer* StructuredBuffer )	Buffer locks have been unified. Use RHIUnlockBuffer() instead.
void	RHIUnlockTexture2D ( FRHITexture2D* Texture, uint32 MipIndex, bool bLockWithinMiptail, bool bFlushRHIThread )
void	RHIUnlockTexture2DArray ( FRHITexture2DArray* Texture, uint32 TextureIndex, uint32 MipIndex, bool bLockWithinMiptail )
void	RHIUnlockTextureCubeFace ( FRHITextureCube* Texture, uint32 FaceIndex, uint32 ArrayIndex, uint32 MipIndex, bool bLockWithinMiptail )
void	RHIUnlockVertexBuffer ( FRHIBuffer* VertexBuffer )	Buffer locks have been unified. Use RHIUnlockBuffer() instead.
void	RHIUpdateRHIResources ( FRHIResourceUpdateInfo* Update..., int32 Num, bool bNeedReleaseRefs )
void	RHIUpdateTexture2D ( FRHITexture2D* Texture, uint32 MipIndex, const FUpdateTextureRegion2D& Upda..., uint32 SourcePitch, const uint8* SourceData )
void	RHIUpdateTexture3D ( FRHITexture3D* Texture, uint32 MipIndex, const FUpdateTextureRegion3D& Upda..., uint32 SourceRowPitch, uint32 SourceDepthPitch, const uint8* SourceData )
void	RHIUpdateTextureReference ( FRHITextureReference* TextureR..., FRHITexture* NewTexture )
void	RHIUpdateUniformBuffer ( FRHIUniformBuffer* UniformBuff..., const void* Contents )
const TCHAR ...	RHIVendorIdToString()	Helper to convert GRHIVendorId into a printable string, or "Unknown" if unknown.
const TCHAR ...	RHIVendorIdToString ( EGpuVendorId VendorId )	Helper to convert VendorId into a printable string, or "Unknown" if unknown.
void	RHIVirtualTextureSetFirstMipInMemory ( FRHITexture2D* Texture, uint32 FirstMip )
void	RHIVirtualTextureSetFirstMipVisible ( FRHITexture2D* Texture, uint32 FirstMip )
bool	RHIVolumeTextureRenderingSupportGuaranteed ( const FStaticShaderPlatform Platfor... )	Return true if and only if the GPU support rendering to volume textures (2D Array, 3D) is guaranteed supported for a target platform.
void	SetComputePipelineState ( FRHIComputeCommandList& RHICmdList, FRHIComputeShader* ComputeShad... )
void	SetDepthBoundsTest ( FRHICommandList& RHICmdList, float WorldSpaceDepthNear, float WorldSpaceDepthFar, const FMatrix& ProjectionMatrix )
void	SetGraphicsPipelineState ( FRHICommandList& RHICmdList, const FGraphicsPipelineStateInitial..., EApplyRendertargetOption ApplyFlags, bool bApplyAdditionalState )	SetGraphicsPipelineState now requires a StencilRef argument and EApplyRendertargetOption::ForceApply will soon be removed
void	SetGraphicsPipelineState ( FRHICommandList& RHICmdList, const FGraphicsPipelineStateInitial..., uint32 StencilRef, EApplyRendertargetOption ApplyFlags, bool bApplyAdditionalState )
EShaderPlatf...	ShaderFormatNameToShaderPlatform ( FName ShaderFormat )
EShaderPlatf...	ShaderFormatToLegacyShaderPlatform ( FName ShaderFormat )
FName	ShaderPlatformToPlatformName ( EShaderPlatform Platform )
FName	ShaderPlatformToShaderFormatName ( EShaderPlatform Platform )
void	TransitionRenderPassTargets ( FRHICommandList& RHICmdList, const FRHIRenderPassInfo& RPInfo )

Variables

	Name	Description
FAutoConsoleTas...	CPrio_SceneRenderingTask
TAutoConsoleVar...	CVarRHICmdFlushRenderThreadTasks
TAutoConsoleVar...	CVarRHICmdWidth
const uint32	FPipelineCacheFileFormatCurrentVersion
int32[1]	GCurrentNumDrawCallsRHI	Num draw calls and primitives this frame (only accurate on RenderThread)
int32[1]	GCurrentNumDrawCallsRHIPtr
int32[1]	GCurrentNumPrimitivesDrawnRHI
int32	GCurrentRendertargetMemorySize	Amount of memory allocated by rendertargets. In kilobytes.
int32	GCurrentTextureMemorySize	Amount of memory allocated by textures. In kilobytes.
uint64	GDemotedLocalMemorySize	Amount of local video memory demoted to system memory. In bytes.
int32	GDrawUPIndexCheckCount	The size to check against for Draw*UP call index counts.
int32	GDrawUPVertexCheckCount	The size to check against for Draw*UP call vertex counts.
FDynamicRHI ...	GDynamicRHI	A global pointer to the dynamically bound RHI implementation.
bool	GEnableAsyncCompute
FString	GGPUTraceFileName	Non-empty if we are performing a gpu trace. Also says where to place trace file.
bool	GHardwareHiddenSurfaceRemoval	True if the GPU supports hidden surface removal in hardware.
uint64	GInputLatencyTime	How many cycles the from sampling input to the frame being flipped.
bool	GIsRHIInitialized	RHI globals.True if the render hardware has been initialized. RHI globals.
bool	GIsRunningRHIInDedicatedThread_InternalUseOnly
bool	GIsRunningRHIInSeparateThread_InternalUseOnly
bool	GIsRunningRHIInTaskThread_InternalUseOnly
TRHIGlobal< int...	GMaxBufferDimensions	The maximum size allowed for 2D textures in both dimensions.
TRHIGlobal< int...	GMaxComputeDispatchDimension	The maximum size allowed for a computeshader dispatch.
TRHIGlobal< int...	GMaxComputeSharedMemory	The maximum size allowed for Shared Compute Memory.
TRHIGlobal< int...	GMaxCubeTextureDimensions	The maximum size allowed for cube textures.
ERHIFeatureLeve...	GMaxRHIFeatureLevel	The maximum feature level and shader platform available on this system GRHIFeatureLevel and GRHIShaderPlatform have been deprecated.
EShaderPlatform	GMaxRHIShaderPlatform
TRHIGlobal< int...	GMaxShadowDepthBufferSizeX	The maximum size to allow for the shadow depth buffer in the X dimension.
TRHIGlobal< int...	GMaxShadowDepthBufferSizeY	The maximum size to allow for the shadow depth buffer in the Y dimension.
int32	GMaxTextureArrayLayers	The Maximum number of layers in a 1D or 2D texture array.
TRHIGlobal< int...	GMaxTextureDimensions	The maximum size allowed for 2D textures in both dimensions.
int32	GMaxTextureMipCount	The maximum number of mip-maps that a texture can contain.
int32	GMaxTextureSamplers
TRHIGlobal< int...	GMaxVolumeTextureDimensions	The maximum size allowed for 3D textures in all three dimensions.
TRHIGlobal< int...	GMaxWorkGroupInvocations	The maximum work group invocations allowed for compute shader.
constexpr float	GMinClipZ	The minimum Z value in clip space for the RHI.
int32[1]	GNumDrawCallsRHI	Some simple runtime stats, reset on every call to RHIBeginFrame Num draw calls & primitives on previous frame (accurate on any thread)
int32[1]	GNumPrimitivesDrawnRHI
FPixelFormatInf...	GPixelFormats
int32	GPoolSizeVRAMPercentage	In percent. If non-zero, the texture pool size is a percentage of GTotalGraphicsMemory.
constexpr float	GProjectionSignY	The sign to apply to the Y axis of projection matrices.
FString	GRHIAdapterDriverDate
bool	GRHIAdapterDriverOnDenyList
FString	GRHIAdapterInternalDriverVersion
FString	GRHIAdapterName	Only set if RHI has the information (after init of the RHI and only if RHI has that information, never changes after that) e.g. "NVIDIA GeForce GTX 670"
FString	GRHIAdapterUserDriverVersion
bool	GRHIAttachmentVariableRateShadingEnabled	Whether attachment (image-based) VRS is currently enabled (separate from whether it's supported/available).
FRHICommandList...	GRHICommandList
FVector2f[1+2+4...	GRHIDefaultMSAASampleOffsets	Tables of all MSAA sample offset for all MSAA supported.
uint32	GRHIDeviceId
bool	GRHIDeviceIsAMDPreGCNArchitecture	True if the GPU is AMD's Pre-GCN architecture
bool	GRHIDeviceIsIntegrated	Whether or not the current GPU is integrated into to CPU
uint32	GRHIDeviceRevision
FRHICommandList...	GRHIFenceAllocator
bool	GRHIForceNoDeletionLatencyForStreamingTextures	Allow opt-out default RHI resource deletion latency for streaming textures
EPixelFormat	GRHIHDRDisplayOutputFormat	Format used for the backbuffer when outputting to a HDR display.
bool	GRHIIsHDREnabled	Whether or not HDR is currently enabled
bool	GRHILazyShaderCodeLoading	If true, then avoiding loading shader code and instead force the "native" path, which sends a library and a hash instead.
FRHILockTracker	GRHILockTracker
FIntVector	GRHIMaxDispatchThreadGroupsPerDimension	The maximum number of groups that can be dispatched in each dimensions.
int32	GRHIMaximumReccommendedOustandingOcclusionQueries	If an RHI cannot do an unlimited number of occlusion queries without stalling and waiting for the GPU, this can be used to tune hte occlusion culler to try not to do that.
int32	GRHIMaximumWaveSize
ERHIAccess	GRHIMergeableAccessMask	Mask of states which are allowed to be considered for state merging.
int32	GRHIMinimumWaveSize	Specifies the minimum and maximum number of lanes in the SIMD wave that this GPU can support.
ERHIAccess	GRHIMultiPipelineMergeableAccessMask	Mask of states which are allowed to be considered for multi-pipeline state merging.
bool	GRHINeedsExtraDeletionLatency	Does this RHI need to wait for deletion of resources due to ref counting.
bool	GRHINeedsUnatlasedCSMDepthsWorkaround	True if the RHI has artifacts with atlased CSM depths.
int32	GRHIPersistentThreadGroupCount	RHI capabilities.Optimal number of persistent thread groups to fill the GPU.
uint64	GRHIPresentCounter	Counter incremented once on each frame present.
uint32	GRHIRayTracingAccelerationStructureAlignment	Required alignment for ray tracing acceleration structures.
uint32	GRHIRayTracingInstanceDescriptorSize	Size of an individual element in the ray tracing instance buffer.
uint32	GRHIRayTracingScratchBufferAlignment	Required alignment for ray tracing scratch buffers.
uint32	GRHIRayTracingShaderTableAlignment	Required alignment for ray tracing shader binding table buffer.
bool	GRHIRequiresRenderTargetForPixelShaderUAVs	True if the RHI requires a valid RT bound during UAV scatter operation inside the pixel shader
bool	GRHISupportsArrayIndexFromAnyShader	True if the RHI supports setting the render target array index from any shader stage
bool	GRHISupportsAsyncTextureCreation	True if the RHI supports asynchronous creation of texture resources
bool	GRHISupportsAtomicUInt64	True if the RHI supports 64 bit uint atomics.
bool	GRHISupportsAttachmentVariableRateShading	Whether or not the RHI can support image-based Variable Rate Shading.
bool	GRHISupportsBackBufferWithCustomDepthStencil	Whether or not the RHI can render to the backbuffer with a custom depth/stencil surface bound.
bool	GRHISupportsBaseVertexIndex	Whether or not the RHI can handle a non-zero BaseVertexIndex - extra SetStreamSource calls will be needed if this is false
bool	GRHISupportsComplexVariableRateShadingCombinerOps	Whether or not the RHI can support complex combiner operatations between per-draw (pipeline) VRS and image VRS.
bool	GRHISupportsConservativeRasterization	Whether current RHI supports overestimated conservative rasterization.
bool	GRHISupportsCopyToTextureMultipleMips	Does the RHI implements CopyToTexture() with FRHICopyTextureInfo::NumMips > 1
bool	GRHISupportsDepthUAV	True if the RHI supports depth target unordered access views.
bool	GRHISupportsDirectGPUMemoryLock	True if the pointer returned by Lock is a persistent direct pointer to gpu memory
bool	GRHISupportsDrawIndirect	True if the RHI supports Draw Indirect
bool	GRHISupportsDynamicResolution	Whether or not the RHI can handle dynamic resolution or not.
bool	GRHISupportsEfficientUploadOnResourceCreation
bool	GRHISupportsExactOcclusionQueries	Some RHIs can only do visible or not occlusion queries.
bool	GRHISupportsExplicitFMask	True if the RHI supports explicit access to MSAA target FMask meta data.
bool	GRHISupportsExplicitHTile	True if the RHI supports explicit access to depth target HTile meta data.
bool	GRHISupportsFirstInstance	Whether or not the RHI can handle a non-zero FirstInstance to DrawIndexedPrimitive and friends - extra SetStreamSource calls will be needed if this is false
bool	GRHISupportsFrameCyclesBubblesRemoval	True if RHIGetGPUFrameCycles removes CPu generated bubbles.
bool	GRHISupportsGPUTimestampBubblesRemoval	True if RQT_AbsoluteTime is supported by RHICreateRenderQuery
bool	GRHISupportsHDROutput	Whether the present adapter/display offers HDR output capabilities.
bool	GRHISupportsInlineRayTracing	Whether or not the RHI supports inline ray tracing in compute shaders, without a full ray tracing pipeline.
bool	GRHISupportsLateVariableRateShadingUpdate	Whether Variable Rate Shading deferred shading rate texture update is supported.
bool	GRHISupportsLazyShaderCodeLoading	If true, then it is possible to turn on GRHILazyShaderCodeLoading.
bool	GRHISupportsMapWriteNoOverwrite	True if the RHI supports RLM_WriteOnly_NoOverwrite
bool	GRHISupportsMeshShadersTier0	True if the RHI supports Mesh and Amplification shaders with tier0 capability
bool	GRHISupportsMeshShadersTier1	True if the RHI supports Mesh and Amplification shaders with tier1 capability
bool	GRHISupportsMSAADepthSampleAccess	Whether or not the RHI can perform MSAA sample load.
bool	GRHISupportsMultithreadedShaderCreation	True if the multi-threaded shader creation is supported by (or desirable for) the RHI.
bool	GRHISupportsMultithreading	Whether the RHI can send commands to the device context from multiple threads.
bool	GRHISupportsParallelRHIExecute	Whether or not the RHI supports parallel RHIThread executes / translates Requirements: RHICreateBoundShaderState & RHICreateGraphicsPipelineState is threadsafe and GetCachedBoundShaderState must not be used.
bool	GRHISupportsPipelineFileCache	True if the pipeline file cache can be used with this RHI
bool	GRHISupportsPipelineStateSortKey	True if the RHI supports optimal low level pipeline state sort keys.
bool	GRHISupportsPipelineVariableRateShading	Whether or not the RHI can support per-draw Variable Rate Shading.
bool	GRHISupportsPixelShaderUAVs	True if the RHI supports Pixel Shader UAV
bool	GRHISupportsPrimitiveShaders	True if the RHI supports primitive shaders.
bool	GRHISupportsQuadTopology	True if the RHI supports quad topology (PT_QuadList).
bool	GRHISupportsRayTracing	Whether or not the RHI supports ray tracing on current hardware (acceleration structure building and new ray tracing-specific shader types).
bool	GRHISupportsRayTracingAMDHitToken	Whether or not the RHI supports the AMD Hit Token extension.
bool	GRHISupportsRayTracingAsyncBuildAccelerationStructure	Whether or not the RHI supports async building ray tracing acceleration structures.
bool	GRHISupportsRayTracingDispatchIndirect	Whether or not the RHI supports indirect ray tracing dispatch commands.
bool	GRHISupportsRayTracingPSOAdditions	Whether or not the RHI supports adding new shaders to an existing RT PSO.
bool	GRHISupportsRayTracingShaders	Whether or not the RHI supports ray tracing raygen, miss and hit shaders (i.e. full ray tracing pipeline).
bool	GRHISupportsRectTopology	True if the RHI supports rectangular topology (PT_RectList).
bool	GRHISupportsResolveCubemapFaces	True if the RHI supports copying cubemap faces using CopyToResolveTarget
bool	GRHISupportsResummarizeHTile	True if the RHI supports resummarizing depth target HTile meta data.
bool	GRHISupportsRHIOnTaskThread	As above, but we run the commands on arbitrary task threads
bool	GRHISupportsRHIThread	Whether or not the RHI supports an RHI thread.
bool	GRHISupportsRWTextureBuffers	Whether RW texture buffers are supported
bool	GRHISupportsShaderTimestamp	True if the RHI supports reading system timer in shaders via GetShaderTimestamp().
bool	GRHISupportsStencilRefFromPixelShader	True if the RHI supports setting the stencil ref at pixel granularity from the pixel shader
bool	GRHISupportsTextureStreaming	True if the RHI supports texture streaming
bool	GRHISupportsUAVFormatAliasing	True if the RHI supports unordered access view format aliasing
bool	GRHISupportsUpdateFromBufferTexture	True if the RHI supports UpdateFromBufferTexture method
bool	GRHISupportsVariableRateShadingAttachmentArrayTextures	Whether or not the RHI can support shading rate attachments as array textures.
bool	GRHISupportsWaveOperations	Whether or not the RHI supports shader wave operations (shader model 6.0).
bool	GRHIThreadNeedsKicking	If an RHI is so slow, that it is the limiting factor for the entire frame, we can kick early to try to give it as much as possible.
uint64	GRHITransitionPrivateData_AlignInBytes
uint64	GRHITransitionPrivateData_SizeInBytes	The size in bytes of the storage required by the platform RHI for each resource transition.
const bool	GRHIValidationEnabled
bool	GRHIVariableRateShadingEnabled	Whether VRS (in all flavors) is currently enabled (separate from whether it's supported/available).
EVRSImageDataTy...	GRHIVariableRateShadingImageDataType	Data type contained in a shading-rate image for image-based Variable Rate Shading.
EPixelFormat	GRHIVariableRateShadingImageFormat	Image format for the shading rate image for image-based Variable Rate Shading.
int32	GRHIVariableRateShadingImageTileMaxHeight	Maximum tile height in a screen space texture that can be used to drive Variable Rate Shading.
int32	GRHIVariableRateShadingImageTileMaxWidth	Maximum tile width in a screen space texture that can be used to drive Variable Rate Shading.
int32	GRHIVariableRateShadingImageTileMinHeight	Minimum tile height in a screen space texture that can be used to drive Variable Rate Shading.
int32	GRHIVariableRateShadingImageTileMinWidth	Minimum tile width in a screen space texture that can be used to drive Variable Rate Shading.
uint32	GRHIVendorId	0 means not defined yet, use functions like IsRHIDeviceAMD() to access
EShaderPlatform...	GShaderPlatformForFeatureLevel	Table for finding out which shader platform corresponds to a given feature level for this RHI.
bool	GSupportsDepthBoundsTest	True if the RHI and current hardware supports supports depth bounds testing
bool	GSupportsEfficientAsyncCompute	True if the RHI and current hardware supports efficient AsyncCompute (by default we assume false and later we can enable this for more hardware)
bool	GSupportsImageExternal	True if the RHI supports image external
bool	GSupportsMobileMultiView	True if the RHI supports mobile multi-view
bool	GSupportsParallelOcclusionQueries	True if the RHI supports getting the result of occlusion queries when on a thread other than the render thread
bool	GSupportsParallelRenderingTasksWithSeparateRHIThread	Temporary.
bool	GSupportsPixelLocalStorage	True if mobile pixel local storage is supported
bool	GSupportsQuadBufferStereo	True if this platform has quad buffer stereo support.
bool	GSupportsRenderDepthTargetableShaderResources	True if the RHI supports textures that may be bound as both a render target and a shader resource.
TRHIGlobal< boo...	GSupportsRenderTargetFormat_PF_FloatRGBA	True if PF_FloatRGBA render targets are supported
TRHIGlobal< boo...	GSupportsRenderTargetFormat_PF_G8	True if PF_G8 render targets are supported
bool	GSupportsSeparateRenderTargetBlendState	True if the RHI supports separate blend states per render target.
bool	GSupportsShaderDepthStencilFetch	True if mobile depth & stencil fetch is supported
bool	GSupportsShaderFramebufferFetch	True if mobile framebuffer fetch is supported
bool	GSupportsShaderMRTFramebufferFetch	True if mobile framebuffer fetch is supported from MRT's
bool	GSupportsTexture3D	True if the RHI supports 3D textures
bool	GSupportsTimestampRenderQueries	True if RQT_AbsoluteTime is supported by RHICreateRenderQuery
bool	GSupportsTransientResourceAliasing	GSupportsTransientResourceAliasing has been deprecated. Transient resource aliasing is handled through IRHITransientResourceAllocator.
bool	GSupportsVolumeTextureRendering	True if and only if the GPU support rendering to volume textures (2D Array, 3D).
bool	GSupportsWideMRT	True if the RHI supports 256bit MRT
int64	GTexturePoolSize	Current texture streaming pool size, in bytes. 0 means unlimited.
bool	GTriggerGPUHitchProfile	Whether we are profiling GPU hitches.
bool	GTriggerGPUProfile	Whether the next frame should profile the GPU.
bool	GUseRHITaskThreads_InternalUseOnly
bool	GUseRHIThread_InternalUseOnly
bool	GUsingNullRHI	True if we are running with the NULL RHI
FVertexElementT...	GVertexElementTypeSupport	True for each VET that is supported. One-to-one mapping with EVertexElementType
uint32	GWorkingRHIThreadStallTime
uint32	GWorkingRHIThreadStartCycles
uint32	GWorkingRHIThreadTime	Private accumulator for the RHI thread.
const FName	LANGUAGE_D3D
const FName	LANGUAGE_Metal
const FName	LANGUAGE_Nintendo
const FName	LANGUAGE_OpenGL
const FName	LANGUAGE_Sony
const FName	LANGUAGE_Vulkan
	STATCAT_Advanced
	STATCAT_Advanced
FCriticalSectio...	StaticStateRHICriticalSection