Renderer Console Variables

Name	Help
r.AllowCachedUniformExpressions	Allow uniform expressions to be cached.
r.AllowClearLightSceneExtentsOnly
r.AllowDepthBoundsTest	If true, use enable depth bounds test when rendering defered lights.
r.AllowGlobalClipPlane	Enables mesh shaders to support a global clip plane, needed for planar reflections, which adds about 15% BasePass GPU cost on PS4.
r.AllowHDR	Creates an HDR compatible swap-chain and enables HDR display output.0: Disabled (default) 1: Allow HDR, if supported by the platform and display
r.AllowLandscapeShadows	Allow Landscape Shadows
r.AllowMultiGPUInEditor	Enable experimental multi-GPU support in editor
r.AllowOcclusionQueries	If zero, occlusion queries will not be used to cull primitives.
r.AllowPointLightCubemapShadows	When 0, will prevent point light cube map shadows from being used and the light will be unshadowed.
r.AllowPrecomputedVisibility	If zero, precomputed visibility will not be used to cull primitives.
r.AllowSimpleLights	If true, we allow simple (ie particle) lights
r.AllowStaticLighting	Whether to allow any static lighting to be generated and used, like lightmaps and shadowmaps. Games that only use dynamic lighting should set this to 0 to save some static lighting overhead.
r.AllowSubPrimitiveQueries	Enables sub primitive queries, currently only used by hierarchical instanced static meshes. 1: Enable, 0 Disabled. When disabled, one query is used for the entire proxy.
r.AllowTexture2DArrayCreation	Enable UTexture2DArray assets
r.AlsoUseSphereForFrustumCull	Performance tweak. If > 0, then use a sphere cull before and in addition to a box for frustum culling.
r.AmbientOcclusion.AsyncComputeBudget	Defines which level of EAsyncComputeBudget to use for balancing AsyncCompute work against Gfx work. Only matters if the compute version of SSAO is active (requires CS support, enabled by cvar, single pass, no normals) This is a low level developer tweak to get best performance on hardware that supports AsyncCompute. 0: least AsyncCompute 1: .. (default) 2: .. 3: .. 4: most AsyncCompute
r.AmbientOcclusion.Compute	If SSAO should use ComputeShader (not available on all platforms) or PixelShader. The [Async] Compute Shader version is WIP, not optimized, requires hardware support (not mobile/DX10/OpenGL3), does not use normals which allows it to run right after EarlyZPass (better performance when used with AyncCompute) AyncCompute is currently only functional on PS4. 0: PixelShader (default) 1: (WIP) Use ComputeShader if possible, otherwise fall back to '0' 2: (WIP) Use AsyncCompute if efficient, otherwise fall back to '1' 3: (WIP) Use AsyncCompute if possible, otherwise fall back to '1'
r.AmbientOcclusion.Compute.Smooth	Whether to smooth SSAO output when TAA is disabled
r.AmbientOcclusion.Denoiser	Choose the denoising algorithm. 0: Disabled; 1: Forces the default denoiser of the renderer; 2: GScreenSpaceDenoiser witch may be overriden by a third party plugin (default).
r.AmbientOcclusion.Denoiser.HistoryConvolution.KernelSpreadFactor	Multiplication factor applied on the kernel sample offset (default = 7).
r.AmbientOcclusion.Denoiser.HistoryConvolution.SampleCount	Number of samples to use for history post filter (default = 16).
r.AmbientOcclusion.Denoiser.KernelSpreadFactor	Spread factor of the preconvolution passes.
r.AmbientOcclusion.Denoiser.PreConvolution	Number of pre-convolution passes (default = 1).
r.AmbientOcclusion.Denoiser.ReconstructionSamples	Maximum number of samples for the reconstruction pass (default = 16).
r.AmbientOcclusion.Denoiser.TemporalAccumulation	Accumulates the samples over multiple frames.
r.AmbientOcclusion.DepthBoundsTest	Whether to use depth bounds test to cull distant pixels during AO pass. This option is only valid when pixel shader path is used (r.AmbientOcclusion.Compute=0), without upsampling.
r.AmbientOcclusion.FadeRadiusScale	Allows to scale the ambient occlusion fade radius (SSAO). 0.01:smallest .. 1.0:normal (default), <1:smaller, >1:larger
r.AmbientOcclusion.Method	Select between SSAO methods 0: SSAO (default) 1: GTAO
r.AmbientOcclusionLevels	Defines how many mip levels are using during the ambient occlusion calculation. This is useful when tweaking the algorithm. <0: decide based on the quality setting in the postprocess settings/volume and r.AmbientOcclusionMaxQuality (default) 0: none (disable AmbientOcclusion) 1: one 2: two (costs extra performance, soft addition) 3: three (larger radius cost less but can flicker)
r.AmbientOcclusionMaxQuality	Defines the max clamping value from the post process volume's quality level for ScreenSpace Ambient Occlusion 100: don't override quality level from the post process volume (default) 0..99: clamp down quality level from the post process volume to the maximum set by this cvar -100..0: Enforces a different quality (the absolute value) even if the postprocessvolume asks for a lower quality.
r.AmbientOcclusionMipLevelFactor	Controls mipmap level according to the SSAO step id 0: always look into the HZB mipmap level 0 (memory cache trashing) 0.5: sample count depends on post process settings (default) 1: Go into higher mipmap level (quality loss)
r.AmbientOcclusionRadiusScale	Allows to scale the ambient occlusion radius (SSAO). 0:off, 1.0:normal, <1:smaller, >1:larger
r.AmbientOcclusionStaticFraction	Allows to override the Ambient Occlusion Static Fraction (see post process volume). Fractions are between 0 and 1. <0: use default setting (default -1) 0: no effect on static lighting, 0 is free meaning no extra rendering pass 1: AO affects the stat lighting
r.Android.DisableASTCSupport	Disable support for ASTC Texture compression if OpenGL driver supports it. (Android Only) 0 = ASTC texture compression will be used if driver supports it [default] 1 = ASTC texture compression will not be used.
r.Android.DisableOpenGLES31Support	Disable support for OpenGLES 3.1 API. (Android Only) 0 = OpenGLES 3.1 API will be used (providing device and project supports it) [default] 1 = OpenGLES 3.1 will be disabled, Vulkan will be used.
r.Android.DisableVulkanSM5Support	Disable support for vulkan API. (Android Only) 0 = Vulkan SM5 API will be used (providing device and project supports it) [default] 1 = Vulkan SM5 will be disabled, Vulkan or OpenGL fall back will be used.
r.Android.DisableVulkanSupport	Disable support for vulkan API. (Android Only) 0 = vulkan API will be used (providing device and project supports it) [default] 1 = vulkan will be disabled, opengl fall back will be used.
r.Android.OverrideExternalTextureSupport	Override external texture support for OpenGLES API. (Android Only) 0 = normal detection used [default] 1 = disable external texture support 2 = force ImageExternal100 (version #100 with GL_OES_EGL_image_external) 3 = force ImageExternal300 (version #300 with GL_OES_EGL_image_external) 4 = force ImageExternalESSL300 (version #300 with GL_OES_EGL_image_external_essl3)
r.AndroidDisableThreadedRendering	Sets whether or not to allow threaded rendering for a particular Android device profile. 0 = Allow threaded rendering [default] 1 = Disable creation of render thread on startup
r.AndroidDisableThreadedRenderingFirstLoad	Sets whether or not to allow threaded rendering for a particular Android device profile on the initial load. 0 = Allow threaded rendering on the initial load [default] 1 = Disable threaded rendering on the initial load
r.AnisotropicMaterials	Whether anisotropic BRDF is used for material with anisotropy.
r.AntiAliasingMethod	Engine default (project setting) for AntiAliasingMethod is (postprocess volume/camera/game setting still can override) 0: off (no anti-aliasing) 1: Fast Approximate Anti-Aliasing (FXAA) 2: Temporal Anti-Aliasing (TAA) 3: Multisample Anti-Aliasing (MSAA, Only available on the desktop forward renderer) 4: Temporal Super-Resolution (TSR, Default)
r.AOApplyToStaticIndirect	Whether to apply DFAO as indirect shadowing even to static indirect sources (lightmaps + stationary skylight + reflection captures)
r.AOAsyncBuildQueue	Whether to asynchronously build distance field volume data from meshes.
r.AOAverageObjectsPerCullTile	Determines how much memory should be allocated in distance field object culling data structures. Too much = memory waste, too little = flickering due to buffer overflow.
r.AOClearHistory
r.AOComputeShaderNormalCalculation	Whether to use the compute shader version of the distance field normal computation.
r.AOGlobalDFClipmapDistanceExponent	Exponent used to derive each clipmap's size, together with r.AOInnerGlobalDFClipmapDistance.
r.AOGlobalDFResolution	Resolution of the global distance field. Higher values increase fidelity but also increase memory and composition cost.
r.AOGlobalDFStartDistance	World space distance along a cone trace to switch to using the global distance field instead of the object distance fields. This has to be large enough to hide the low res nature of the global distance field, but smaller values result in faster cone tracing.
r.AOGlobalDistanceField	Whether to use a global distance field to optimize occlusion cone traces. The global distance field is created by compositing object distance fields into clipmaps as the viewer moves through the level.
r.AOGlobalDistanceField.AverageCulledObjectsPerPage	Average expected number of objects per page, used to preallocate memory for the cull grid.
r.AOGlobalDistanceField.CameraPositionVelocityOffsetDecay
r.AOGlobalDistanceField.FastCameraMode	Whether to update the Global SDF for fast camera movement - lower quality, faster updates so lighting can keep up with the camera.
r.AOGlobalDistanceField.Heightfield	Whether to voxelize Heightfield into the global distance field.
r.AOGlobalDistanceField.MinMeshSDFRadius	Meshes with a smaller world space radius than this are culled from the global SDF.
r.AOGlobalDistanceField.MinMeshSDFRadiusInVoxels	Meshes with a smaller radius than this number of voxels are culled from the global SDF.
r.AOGlobalDistanceField.MipFactor	Resolution divider for the mip map of a distance field clipmap.
r.AOGlobalDistanceField.NumClipmaps	Num clipmaps in the global distance field. Setting this to anything other than 4 is currently only supported by Lumen.
r.AOGlobalDistanceField.OccupancyRatio	Expected sparse global distacne field occupancy for the page atlas allocation. 0.25 means 25% - filled and 75% - empty.
r.AOGlobalDistanceFieldCacheMostlyStaticSeparately	Whether to cache mostly static primitives separately from movable primitives, which reduces global DF update cost when a movable primitive is modified. Adds another 12Mb of volume textures.
r.AOGlobalDistanceFieldClipmapUpdatesPerFrame	How many clipmaps to update each frame, only 1 or 2 supported. With values less than 2, the first clipmap is only updated every other frame, which can cause incorrect self occlusion during movement.
r.AOGlobalDistanceFieldDrawModifiedPrimitives	Whether to draw primitive modifications (add, remove, updatetransform) that caused an update of the global distance field. This can be useful for tracking down why updating the global distance field is always costing a lot, since it should be mostly cached.
r.AOGlobalDistanceFieldForceFullUpdate	Whether to force full global distance field update every frame.
r.AOGlobalDistanceFieldForceMovementUpdate	Whether to force N texel border on X, Y and Z update each frame.
r.AOGlobalDistanceFieldLogModifiedPrimitives	Whether to log primitive modifications (add, remove, updatetransform) that caused an update of the global distance field. This can be useful for tracking down why updating the global distance field is always costing a lot, since it should be mostly cached. Pass 2 to log only non movable object updates.
r.AOGlobalDistanceFieldPartialUpdates	Whether to allow partial updates of the global distance field. When profiling it's useful to disable this and get the worst case composition time that happens on camera cuts.
r.AOGlobalDistanceFieldRepresentHeightfields	Whether to put landscape in the global distance field. Changing this won't propagate until the global distance field gets recached (fly away and back).
r.AOGlobalDistanceFieldStaggeredUpdates	Whether to allow the larger clipmaps to be updated less frequently.
r.AOHistoryDistanceThreshold	World space distance threshold needed to discard last frame's DFAO results. Lower values reduce ghosting from characters when near a wall but increase flickering artifacts.
r.AOHistoryStabilityPass	Whether to gather stable results to fill in holes in the temporal reprojection. Adds some GPU cost but improves temporal stability with foliage.
r.AOHistoryWeight	Amount of last frame's AO to lerp into the final result. Higher values increase stability, lower values have less streaking under occluder movement.
r.AOJitterConeDirections
r.AOListMemory
r.AOListMeshDistanceFields
r.AOMaxViewDistance	The maximum distance that AO will be computed at.
r.AOObjectDistanceField	Determines whether object distance fields are used to compute ambient occlusion. Only global distance field will be used when this option is disabled.
r.AOOverwriteSceneColor
r.AOQuality	Defines the distance field AO method which allows to adjust for quality or performance. 0:off, 1:medium, 2:high (default)
r.AOSampleSet	0 = Original set, 1 = Relaxed set
r.AOScatterTileCulling	Whether to use the rasterizer for binning occluder objects into screenspace tiles.
r.AOSpecularOcclusionMode	Determines how specular should be occluded by DFAO 0: Apply non-directional AO to specular. 1: (default) Intersect the reflection cone with the unoccluded cone produced by DFAO. This gives more accurate occlusion than 0, but can bring out DFAO sampling artifacts.
r.AOStepExponentScale	Exponent used to distribute AO samples along a cone direction.
r.AOUpdateGlobalDistanceField	Whether to update the global distance field, useful for debugging.
r.AOUseHistory	Whether to apply a temporal filter to the distance field AO, which reduces flickering but also adds trails when occluders are moving.
r.AOUseJitter	Whether to use 4x temporal supersampling with Screen Grid DFAO. When jitter is disabled, a shorter history can be used but there will be more spatial aliasing.
r.AOViewFadeDistanceScale	Distance over which AO will fade out as it approaches r.AOMaxViewDistance, as a fraction of r.AOMaxViewDistance.
r.AsyncPipelineCompile	0 to Create PSOs at the moment they are requested 1 to Create Pipeline State Objects asynchronously(default)
r.BasePassForceOutputsVelocity	Force the base pass to compute motion vector, regardless of FPrimitiveUniformShaderParameters.0: Disabled (default)1: Enabled
r.BasePassOutputsVelocity	Deprecated CVar. Use r.VelocityOutputPass instead.
r.BasePassWriteDepthEvenWithFullPrepass	0 to allow a readonly base pass, which skips an MSAA depth resolve, and allows masked materials to get EarlyZ (writing to depth while doing clip() disables EarlyZ) (default) 1 to force depth writes in the base pass. Useful for debugging when the prepass and base pass don't match what they render.
r.bFlushRenderTargetsOnWorldCleanup
r.BlackBorders	To draw black borders around the rendered image (prevents artifacts from post processing passes that read outside of the image e.g. PostProcessAA) in pixels, 0:off
r.Bloom.AsyncCompute	Whether to run FFT bloom on async compute.
r.Bloom.CacheKernel	Whether to cache the kernel in spectral domain.
r.Bloom.ScreenPercentage	Controles the axis resolution of the FFT convolution for bloom.
r.BloomQuality	0: off, no performance impact. 1: average quality, least performance impact. 2: average quality, least performance impact. 3: good quality. 4: good quality. 5: Best quality, most significant performance impact. (default) >5: force experimental higher quality on mobile (can be quite slow on some hardware)
r.BufferVisualizationDumpFrames	When screenshots or movies dumps are requested, also save out dumps of the current buffer visualization materials 0:off (default) 1:on
r.BufferVisualizationDumpFramesAsHDR	When saving out buffer visualization materials in a HDR capable format 0: Do not override default save format. 1: Force HDR format for buffer visualization materials.
r.BufferVisualizationOverviewTargets	Specify the list of post process materials that can be used in the buffer visualization overview. Put nothing between the commas to leave a gap. Choose from: BaseColor CustomDepth CustomStencil FinalImage ShadingModel MaterialAO Metallic Opacity Roughness Anisotropy SceneColor SceneDepth SeparateTranslucencyRGB SeparateTranslucencyA Specular SubsurfaceColor WorldNormal WorldTangent AmbientOcclusion CustomDepthWorldUnits SceneDepthWorldUnits Velocity PreTonemapHDRColor PostTonemapHDRColor
r.BufferVisualizationTarget	When the viewport view-mode is set to 'Buffer Visualization', this command specifies which of the various channels to display. Values entered other than the allowed values shown below will be ignored. BaseColor CustomDepth CustomStencil FinalImage ShadingModel MaterialAO Metallic Opacity Roughness Anisotropy SceneColor SceneDepth SeparateTranslucencyRGB SeparateTranslucencyA Specular SubsurfaceColor WorldNormal WorldTangent AmbientOcclusion CustomDepthWorldUnits SceneDepthWorldUnits Velocity PreTonemapHDRColor PostTonemapHDRColor
r.Cache.DrawDirectionalShadowing	Whether to draw direct shadowing sample points as generated by Lightmass. 0 is off (default), 1 is on
r.Cache.DrawInterpolationPoints	Whether to draw positions that indirect lighting is interpolated at when they are updated, which are stored in the cache. Probably need 'r.CacheUpdateEveryFrame 1' as well to be useful, otherwise points will flicker as they update. 0 is off (default), 1 is on
r.Cache.DrawLightingSamples	Whether to draw indirect lighting sample points as generated by Lightmass. 0 is off (default), 1 is on
r.Cache.LightingCacheDimension	Dimensions of the lighting cache. This should be a multiple of r.LightingCacheMovableObjectAllocationSize for least waste.
r.Cache.LightingCacheMovableObjectAllocationSize	Resolution of the interpolation sample volume used to light a dynamic object. Values of 1 or 2 will result in a single interpolation sample per object which does not provide continuous lighting under movement, so interpolation is done over time. Values of 3 or more support the necessary padding to provide continuous results under movement.
r.Cache.LimitQuerySize	0 is off, 1 is on (default)
r.Cache.QueryNodeLevel	Level of the lighting sample octree whose node's extents should be the target size for queries into the octree. Primitive blocks will be broken up into multiple octree queries if they are larger than this.0 is the root, 12 is the leaf level
r.Cache.ReduceSHRinging	Whether to modify indirect lighting cache SH samples to reduce ringing. 0 is off, 1 is on (default)
r.Cache.SampleTransitionSpeed	When using single sample lighting, controls the speed of the transition between two point samples (fade over time).
r.Cache.UpdateEveryFrame	Whether to update indirect lighting cache allocations every frame, even if they would have been cached. 0 is off (default), 1 is on
r.Cache.UpdatePrimsTaskEnabled	Enable threading for ILC primitive update. Will overlap with the rest the end of InitViews.
r.CachedRayTracingInstances.CacheLocalTransform	Cache Local Transform instead of using InstanceData (increases memory usage).
r.CachedRayTracingInstances.LazyUpdate	Lazy update cached ray tracing instances world transforms. Reduces memory usage by only caching world transforms of primitives when necessary.
r.CalcLocalPlayerCachedLODDistanceFactor	Should we calculate a LOD Distance Factor based on the current FOV. Should not be necessary since LOD is already based on screen size.
r.CameraCutTranslationThreshold	The maximum camera translation disatance in centimeters allowed between two frames before a camera cut is automatically inserted.
r.CapsuleDirectShadows	Whether to allow capsule direct shadowing on skinned components with bCastCapsuleDirectShadow enabled.
r.CapsuleIndirectConeAngle	Light source angle used when the indirect shadow direction is derived from precomputed indirect lighting (no stationary skylight present)
r.CapsuleIndirectShadows	Whether to allow capsule indirect shadowing on skinned components with bCastCapsuleIndirectShadow enabled.
r.CapsuleMaxDirectOcclusionDistance	Maximum cast distance for direct shadows from capsules. This has a big impact on performance.
r.CapsuleMaxIndirectOcclusionDistance	Maximum cast distance for indirect shadows from capsules. This has a big impact on performance.
r.CapsuleMinSkyAngle	Minimum light source angle derived from the precomputed unoccluded sky vector (stationary skylight present)
r.CapsuleShadowFadeAngleFromVertical	Angle from vertical up to start fading out the indirect shadow, to avoid self shadowing artifacts.
r.CapsuleShadows	Whether to allow capsule shadowing on skinned components with bCastCapsuleDirectShadow or bCastCapsuleIndirectShadow enabled.
r.CapsuleShadowsFullResolution	Whether to compute capsule shadows at full resolution.
r.CapsuleSkyAngleScale	Scales the light source angle derived from the precomputed unoccluded sky vector (stationary skylight present)
r.CatmullRomEndParamOffset	The parameter offset for catmul rom end points.
r.CEFGPUAcceleration	Enables GPU acceleration in CEF
r.chaos.ReflectionCaptureStaticSceneOnly	0 is off, 1 is on (default)
r.CheckSRVTransitions	Tests that render targets are properly transitioned to SRV when SRVs are set.
r.ClearCoatNormal	0 to disable clear coat normal. 0: off 1: on
r.ClearGBufferDBeforeBasePass	Whether to clear GBuffer D before basepass
r.ClearSceneMethod	Select how the g-buffer is cleared in game mode (only affects deferred shading). 0: No clear 1: RHIClear (default) 2: Quad at max z
r.Color.Grading	Controls whether post process settings's color grading settings should be applied.
r.Color.Max	Allows to define where the value 1.0 in the color channels is mapped to after color grading. Value should be around 1, smaller values darken the highlights, larger values move more colors towards white, Default: 1
r.Color.Mid	Allows to define where the value 0.5 in the color channels is mapped to after color grading (This is similar to a gamma correction). Value should be around 0.5, smaller values darken the mid tones, larger values brighten the mid tones, Default: 0.5
r.Color.Min	Allows to define where the value 0 in the color channels is mapped to after color grading. The value should be around 0, positive: a gray scale is added to the darks, negative: more dark values become black, Default: 0
r.CompileMaterialsForShaderFormat	When enabled, compile materials for this shader format in addition to those for the running platform. Note that these shaders are compiled and immediately tossed. This is only useful when directly inspecting output via r.DebugDumpShaderInfo.
r.CompileShadersForDevelopment	Setting this to 0 allows to ship a game with more optimized shaders as some editor and development features are not longer compiled into the shaders. Note: This should be done when shipping but it's not done automatically yet (feature need to mature and shaders will compile slower as shader caching from development isn't shared). Cannot be changed at runtime - can be put into BaseEngine.ini 0: off, shader can run a bit faster 1: on (Default)
r.ContactShadows	0: disabled. 1: enabled.
r.ContactShadows.NonShadowCastingIntensity	Intensity of contact shadows from objects with cast contact shadows disabled. Usually 0 (off).
r.CookOutUnusedDetailModeComponents	If set, components which are not relevant for the current detail mode will be cooked out. 0: keep components even if not relevant for the current detail mode. 1: cook out components not relevant for the current detail mode.
r.CopyLockedViews	Copies all locked views in to a string that r.LockView will accept to reload them.
r.CreateShadersOnLoad	Whether to create shaders on load, which can reduce hitching, but use more memory. Otherwise they will be created as needed.
r.CullInstances	CullInstances.
r.CustomDepth	0: feature is disabled 1: feature is enabled, texture is created on demand 2: feature is enabled, texture is not released until required (should be the project setting if the feature should not stall) 3: feature is enabled, stencil writes are enabled, texture is not released until required (should be the project setting if the feature should not stall)
r.CustomDepth.Order	When CustomDepth (and CustomStencil) is getting rendered 0: Before Base Pass (Allows samping in DBuffer pass. Can be more efficient with AsyncCompute.) 1: After Base Pass 2: Default (Before Base Pass if DBuffer enabled.)
r.CustomDepthTemporalAAJitter	If disabled the Engine will remove the TemporalAA Jitter from the Custom Depth Pass. Only has effect when TemporalAA is used.
r.CustomUnsafeZones	Allows you to set custom unsafe zones. Define them based on Portrait (P) or Landscape (L) for a device oriented 'upright'.Unsafe zones may be either fixed or free, depending on if they move along with the rotation of the device.Format is (P:fixed[x1, y1][width, height]), semicolon-separated for each custom unsafe zone. +Values add from 0, -Values subtract from Height or Width
r.D3D.CheckedForTypedUAVs	Whether to disallow usage of typed UAV loads, as they are unavailable in Windows 7 D3D 11.0. 0: Allow usage of typed UAV loads. 1: Disallow usage of typed UAV loads. (default)
r.D3D.ForceDXC	Forces DirectX Shader Compiler (DXC) to be used for all D3D shaders. Shaders compiled with this option are only compatible with D3D12. 0: Disable (default) 1: Force new compiler for all shaders
r.D3D.ForceShaderConductorDXCRewrite	Forces rewriting using ShaderConductor when DXC is enabled. 0: Do not rewrite (default) 1: Force ShaderConductor rewrite
r.D3D.RemoveUnusedInterpolators	Enables removing unused interpolators mode when compiling pipelines for D3D. -1: Do not actually remove, but make the app think it did (for debugging) 0: Disable (default) 1: Enable removing unused
r.D3D12.AllowAsyncCompute	Allow usage of async compute
r.D3D12.AllowShaderModel6	Allows the usage of SM6 feature level.
r.D3D12.AutoAttachPIX	Automatically attach PIX on startup
r.D3D12.BreadCrumbs	Enable minimal overhead GPU Breadcrumbs to track the current GPU state and logs information what operations the GPU executed last.
r.D3D12.Depth24Bit	0: Use 32-bit float depth buffer 1: Use 24-bit fixed point depth buffer(default)
r.D3D12.DRED	Enable DRED GPU Crash debugging mode to track the current GPU state and logs information what operations the GPU executed last.Has GPU overhead but gives the most information on the current GPU state when it crashes or hangs.
r.D3D12.DXR.MinimumDriverVersionAMD	Sets the minimum driver version required to enable ray tracing on AMD GPUs.
r.D3D12.DXR.MinimumDriverVersionNVIDIA	Sets the minimum driver version required to enable ray tracing on NVIDIA GPUs.
r.D3D12.DXR.MinimumWindowsBuildVersion	Sets the minimum Windows build version required to enable ray tracing.
r.D3D12.ExecuteCommandListTask	0: Execute command lists on RHI Thread instead of separate task! 1: Execute command lists on task created from RHIThread to offload expensive work (default)
r.D3D12.ExperimentalShaderModels	Controls whether D3D12 experimental shader models should be allowed. Not available in shipping builds. (default = 0).
r.D3D12.GPUTimeout	0: Disable GPU Timeout; use with care as it could freeze your PC! 1: Enable GPU Timeout; operation taking long on the GPU will fail(default)
r.D3D12.NvAfterMath	Enable NvAftermath to track the current GPU state and logs information what operations the GPU executed last. Only works on nVidia hardware and will dump GPU crashdumps as well.
r.D3D12.RayTracing.AllowCompaction	Whether to automatically perform compaction for static acceleration structures to save GPU memory. (default = 1)
r.D3D12.RayTracing.AllowSpecializedStateObjects	Whether to use specialized RTPSOs if they have been created. This is intended for performance testingand has no effect if r.D3D12.RayTracing.SpecializeStateObjects is 0. (default = 1)
r.D3D12.RayTracing.CacheShaderRecords	Automatically cache and re-use SBT hit group records. This significantly improves CPU performance in large scenes with many identical mesh instances. (default = 1) This mode assumes that contents of uniform buffers does not change during ray tracing resource binding.
r.D3D12.RayTracing.DebugForceBuildMode	Forces specific acceleration structure build mode (not runtime-tweakable). 0: Use build mode requested by high-level code (Default) 1: Force fast build mode 2: Force fast trace mode
r.D3D12.RayTracing.DeduplicateSamplers	Use an exhaustive search to deduplicate sampler descriptors when generating shader binding tables. Reduces sampler heap usage at the cost of some CPU time. (default = 1)
r.D3D12.RayTracing.MaxBatchedCompaction	Maximum of amount of compaction requests and rebuilds per frame. (default = 64)
r.D3D12.RayTracing.SpecializeStateObjects	Whether to create specialized unique ray tracing pipeline state objects for each ray generation shader. (default = 0) This option can produce more more efficient PSOs for the GPU at the cost of longer creation times and more memory. Requires DXR 1.1.
r.D3D12.RayTracing.ViewDescriptorHeapSize	Maximum number of descriptors per ray tracing view descriptor heap. (default = 250k, ~8MB per heap) Typical measured descriptor heap usage in large scenes is ~50k. An error is reported when this limit is reached and shader bindings for subsequent objects are skipped.
r.D3D12.UseAllowTearing	Enable new dxgi flip mode with d3d12
r.D3D12.UseInternalTransitions	Use the D3D12 RHI internal transitions to drive all resource transitions
r.D3D12.ValidateInternalTransitions	Use the D3D12 RHI internal transitions to validate the engine pushed RHI transitions
r.DBuffer	Enables DBuffer decal material blend modes. DBuffer decals are rendered before the base pass, allowing them to affect static lighting and skylighting correctly. When enabled, a full prepass will be forced which adds CPU / GPU cost. Several texture lookups will be done in the base pass to fetch the decal properties, which adds pixel work. 0: off 1: on (default)
r.DebugActionZone.ActionRatio	The action zone ratio that will be returned by FDisplayMetrics::GetDisplayMetrics on platforms that don't have a defined safe zone (0..1) default: 1.0
r.DebugLightDiscardProp	[0,1]: Proportion of lights to discard for debug/performance profiling purposes.
r.DebugSafeZone.MaxDebugTextStringsPerActor	The maximum number of debug strings that can be attached to a given actor (<=0 : no limit)
r.DebugSafeZone.Mode	The safe zone visualization mode (0..2) 0: Disabled (default) 1: Show Title Safe Zone 2: Show Action Safe Zone
r.DebugSafeZone.OverlayAlpha	The alpha value of the safe zone overlay (0..1) default: 0.2
r.DebugSafeZone.TitleRatio	The safe zone ratio that will be returned by FDisplayMetrics::GetDisplayMetrics on platforms that don't have a defined safe zone (0..1) default: 1.0
r.Decal.FadeDurationScale	Scales the per decal fade durations. Lower values shortens lifetime and fade duration. Default is 1.0f.
r.Decal.FadeScreenSizeMult	Control the per decal fade screen size. Multiplies with the per-decal screen size fade threshold. Smaller means decals fade less aggressively.
r.Decal.NormalReprojectionEnabled	If true, normal reprojection from the previous frame is allowed in SceneTexture nodes on DBuffer decals, provided that motion in depth prepass is enabled as well (r.VelocityOutputPass=0). Otherwise the fallback is the normal extracted from the depth buffer.
r.Decal.NormalReprojectionThresholdHigh	When reading the normal from a SceneTexture node in a DBuffer decal shader, the normal is a mix of the geometry normal (extracted from the depth buffer) and the normal from the reprojected previous frame. When the dot product of the geometry and reprojected normal is below the r.Decal.NormalReprojectionThresholdLow, the geometry normal is used. When that value is above r.Decal.NormalReprojectionThresholdHigh, the reprojected normal is used. Otherwise it uses a lerp between them.
r.Decal.NormalReprojectionThresholdLow	When reading the normal from a SceneTexture node in a DBuffer decal shader, the normal is a mix of the geometry normal (extracted from the depth buffer) and the normal from the reprojected previous frame. When the dot product of the geometry and reprojected normal is below the r.Decal.NormalReprojectionThresholdLow, the geometry normal is used. When that value is above r.Decal.NormalReprojectionThresholdHigh, the reprojected normal is used. Otherwise it uses a lerp between them.
r.Decal.StencilSizeThreshold	Control a per decal stencil pass that allows to large (screen space) decals faster. It adds more overhead per decals so this <0: optimization is disabled 0: optimization is enabled no matter how small (screen space) the decal is 0..1: optimization is enabled, value defines the minimum size (screen space) to trigger the optimization (default 0.1)
r.DecalDepthBias	Global depth bias used by mesh decals. Default is 0.005
r.DefaultBackBufferPixelFormat	Defines the default back buffer pixel format. 0: 8bit RGBA 1: 16bit RGBA 2: Float RGB 3: Float RGBA 4: 10bit RGB, 2bit Alpha
r.DefaultFeature.AmbientOcclusion	Engine default (project setting) for AmbientOcclusion is (postprocess volume/camera/game setting still can override) 0: off, sets AmbientOcclusionIntensity to 0 1: on (default)
r.DefaultFeature.AmbientOcclusionStaticFraction	Engine default (project setting) for AmbientOcclusion is (postprocess volume/camera/game setting still can override) 0: off, sets AmbientOcclusionStaticFraction to 0 1: on (default, costs extra pass, only useful if there is some baked lighting)
r.DefaultFeature.AutoExposure	Engine default (project setting) for AutoExposure is (postprocess volume/camera/game setting still can override) 0: off, sets AutoExposureMinBrightness and AutoExposureMaxBrightness to 1 1: on (default)
r.DefaultFeature.AutoExposure.Bias	Engine default (project setting) for AutoExposure Exposure Bias (postprocess volume/camera/game setting still can override)
r.DefaultFeature.AutoExposure.ExtendDefaultLuminanceRange	Whether the default values for AutoExposure should support an extended range of scene luminance. This also change the PostProcessSettings.Exposure.MinBrightness, MaxBrightness, HistogramLogMin and HisogramLogMax to be expressed in EV100 values instead of in Luminance and Log2 Luminance. 0: Legacy range (default) 1: Extended range
r.DefaultFeature.AutoExposure.Method	Engine default (project setting) for AutoExposure Method (postprocess volume/camera/game setting still can override) 0: Histogram based (requires compute shader, default) 1: Basic AutoExposure
r.DefaultFeature.Bloom	Engine default (project setting) for Bloom is (postprocess volume/camera/game setting still can override) 0: off, set BloomIntensity to 0 1: on (default)
r.DefaultFeature.LensFlare	Engine default (project setting) for LensFlare is (postprocess volume/camera/game setting still can override) 0: off, sets LensFlareIntensity to 0 1: on (default)
r.DefaultFeature.LightUnits	Default units to use for point, spot and rect lights 0: unitless 1: candelas (default) 2: lumens
r.DefaultFeature.MotionBlur	Engine default (project setting) for MotionBlur is (postprocess volume/camera/game setting still can override) 0: off, sets MotionBlurAmount to 0 1: on (default)
r.DeferSkeletalDynamicDataUpdateUntilGDME	If > 0, then do skeletal mesh dynamic data updates will be deferred until GDME. Experimental option.
r.DeferUniformExpressionCaching	Whether to defer caching of uniform expressions until a rendering command needs them up to date. Deferring updates is more efficient because multiple SetVectorParameterValue calls in a frame will only result in one update.
r.DeferUpdateRenderStates	Whether to defer updating the render states of material parameter collections when a paramter is changed until a rendering command needs them up to date. Deferring updates is more efficient because multiple SetVectorParameterValue and SetScalarParameterValue calls in a frame will only result in one update.
r.DemosaicVposOffset	This offset is added to the rasterized position used for demosaic in the mobile tonemapping shader. It exists to workaround driver bugs on some Android devices that have a half-pixel offset.
r.DemotedLocalMemoryWarning	If set to 1, a warning will be displayed when local memory has been demoted to system memory.
r.DepthOfField.DepthBlur.Amount	This scale multiplier only affects the CircleDOF DepthBlur feature (value defines in how many km the radius goes to 50%). x: Multiply the existing Depth Blur Amount with x -x: Override the existing Depth Blur Amount with x (in km) 1: No adjustments (default)
r.DepthOfField.DepthBlur.ResolutionScale	This scale multiplier only affects the CircleDOF DepthBlur feature. It's a temporary hack. It lineary scale the DepthBlur by the resolution increase over 1920 (in width), does only affect resolution larger than that. Actual math: float Factor = max(ViewWidth / 1920 - 1, 0); DepthBlurRadius *= 1 + Factor * (CVar - 1) 1: No adjustments (default) x: if the resolution is 1920 there is no change, if 2x larger than 1920 it scale the radius by x
r.DepthOfField.DepthBlur.Scale	This scale multiplier only affects the CircleDOF DepthBlur feature. This is applied after r.DepthOfField.DepthBlur.ResolutionScale. 0: Disable Depth Blur x: Multiply the existing Depth Blur Radius with x -x: Override the existing Depth Blur Radius with x 1: No adjustments (default)
r.DepthOfField.MaxSize	Allows to clamp the gaussian depth of field radius (for better performance), default: 100
r.DepthOfField.NearBlurSizeThreshold	Sets the minimum near blur size before the effect is forcably disabled. Currently only affects Gaussian DOF. (default: 0.01)
r.DepthOfFieldQuality	Allows to adjust the depth of field quality. Currently only fully affects BokehDOF. GaussianDOF is either 0 for off, otherwise on. 0: Off 1: Low 2: high quality (default, adaptive, can be 4x slower) 3: very high quality, intended for non realtime cutscenes, CircleDOF only (slow) 4: extremely high quality, intended for non realtime cutscenes, CircleDOF only (very slow)
r.DetailMode	Current detail mode; determines whether components of actors should be updated/ ticked. 0: low, show only object with DetailMode low or higher 1: medium, show all object with DetailMode medium or higher 2: high, show all objects (default)
r.DFDistanceScale	Factor to scale directional light property 'DistanceField Shadows Distance', clamped to [0.0001, 10000]. I.e.: DistanceFieldShadowsDistance *= r.DFDistanceScale. [0.0001,1): shorter distance 1: normal (default) (1,10000]: larger distance.)
r.DFFarTransitionScale	Use to modify the length of the far transition (fade out) of the distance field shadows. 1.0: (default) Calculate in the same way as other cascades.0.0: Disable fade out.
r.DFFullResolution	1 = full resolution distance field shadowing, 0 = half resolution with bilateral upsample.
r.DFShadowAsyncCompute	Whether render distance field shadows using async compute if possible
r.DFShadowAverageObjectsPerCullTile	Determines how much memory should be allocated in distance field object culling data structures. Too much = memory waste, too little = flickering due to buffer overflow.
r.DFShadowCompactCulledObjects	Whether to compact culled object indices when using scattered tile culling. Note that each tile can only hold up to r.DFShadowAverageObjectsPerCullTile number of objects when compaction is not used.
r.DFShadowCullTileWorldSize	World space size of a tile used for culling for directional lights.
r.DFShadowOffsetDataStructure	Which data structure to store offset in, 0 - base, 1 - buffer, 2 - texture
r.DFShadowQuality	Defines the distance field shadow method which allows to adjust for quality or performance. 0:off, 1:low (20 steps, no SSS), 2:medium (32 steps, no SSS), 3:high (64 steps, SSS, default)
r.DFShadowScatterTileCulling	Whether to use the rasterizer to scatter objects onto the tile grid for culling.
r.DFTwoSidedMeshDistanceBias	World space amount to expand distance field representations of two sided meshes. This is useful to get tree shadows to match up with standard shadow mapping.
r.DiffuseColor.Max	Allows quick material test by remapping the diffuse color at 1 to a new value (0..1), Only for non shipping built! 1: (default)
r.DiffuseColor.Min	Allows quick material test by remapping the diffuse color at 1 to a new value (0..1), Only for non shipping built! 1: (default)
r.DiffuseIndirect.Denoiser	Denoising options (default = 1)
r.DiffuseIndirect.HalfRes	TODO(Guillaume)
r.DiffuseIndirect.RayPerPixel	TODO(Guillaume)
r.DisableDistortion	Prevents distortion effects from rendering. Saves a full-screen framebuffer's worth of memory.
r.DisableDriverWarningPopupIfGFN	If non-zero, disable driver version warning popup if running on a GFN cloud machine.
r.DisableEngineAndAppRegistration	If true, disables engine and app registration, to disable GPU driver optimizations during debugging and development Changes will only take effect in new game/editor instances - can't be changed at runtime.
r.DisableLODFade	Disable fading for distance culling
r.DiscardUnusedQuality	Whether to keep or discard unused quality level shadermaps in memory. 0: keep all quality levels in memory. (default) 1: Discard unused quality levels on load.
r.DisplayInternals	Allows to enable screen printouts that show the internals on the engine/renderer This is mostly useful to be able to reason why a screenshots looks different. 0: off (default) 1: enabled
r.DistanceFadeMaxTravel	Max distance that the player can travel during the fade time.
r.DistanceFieldAO	Whether the distance field AO feature is allowed, which is used to implement shadows of Movable sky lights from static meshes.
r.DistanceFieldAO.TraverseMips	Whether to traverse mips while tracing AO cones against object SDFs.
r.DistanceFields	Enables distance fields rendering. 0: Disabled. 1: Enabled.
r.DistanceFields.BlockAllocatorSizeInBricks	Allocation granularity of the distance field block allocator. Higher number may cause more memory wasted on padding but allocation may be faster.
r.DistanceFields.BrickAtlasMaxSizeZ	Target for maximum depth of the Mesh Distance Field atlas, in 8^3 bricks. 32 => 128 * 128 * 32 * 8^3 = 256Mb. Actual atlas size can go over since mip2 is always loaded.
r.DistanceFields.BrickAtlasSizeXYInBricks	Controls the allocation granularity of the atlas, which grows in Z.
r.DistanceFields.Debug.ForceNumMips	When set to > 0, overrides the requested number of mips for streaming. 1 = only lowest resolution mip loaded, 3 = all mips loaded. Mips will still be clamped by available space in the atlas.
r.DistanceFields.Debug.ResizeAtlasEveryFrame	Whether to resize the Distance Field atlas every frame, which is useful for debugging.
r.DistanceFields.DefaultVoxelDensity	Determines how the default scale of a mesh converts into distance field voxel dimensions. Changing this will cause all distance fields to be rebuilt. Large values can consume memory very quickly!
r.DistanceFields.DefragmentIndirectionAtlas	Whether to defragment the Distance Field indirection atlas when it requires resizing.
r.DistanceFields.LogAtlasStats	Set to 1 to dump atlas stats, set to 2 to dump atlas and SDF asset stats.
r.DistanceFields.MaxIndirectionAtlasSizeXYZ	Maximum size of indirection atlas texture
r.DistanceFields.MaxObjectBoundingRadius	Objects larger than this will not be included in the Mesh Distance Field scene, to improve performance.
r.DistanceFields.MaxPerMeshResolution	Highest resolution (in one dimension) allowed for a single static mesh asset, used to cap the memory usage of meshes with a large scale. Changing this will cause all distance fields to be rebuilt. Large values such as 512 can consume memory very quickly! (64Mb for one asset at 512)
r.DistanceFields.MinIndirectionAtlasSizeXYZ	Minimum size of indirection atlas texture
r.DistanceFields.ParallelUpdate
r.DistanceFields.ReverseAtlasAllocationOrder
r.DistanceFields.SupportEvenIfHardwareRayTracingSupported	Whether to support distance fields when hardware ray tracing is supported. Setting it to 0 will skip distance field overhead when hardware ray tracing is supported.
r.DistanceFields.SurfaceBiasExpand	Fraction of a Mesh SDF voxel to expand the surface during intersection. Expanding the surface improves representation quality, at the cost of over-occlusion.
r.DistanceFields.TextureUploadLimitKBytes	Max KB of distance field texture data to upload per frame from streaming requests.
r.DistanceFields.TwoSidedSurfaceBiasExpand	Amount to scale the surface bias for meshes with mostly two sided triangles. Two sided meshes are not represented well with Signed Distance Fields, as no negative region gets created. Expanding the surface improves representation quality, at the cost of over-occlusion.
r.DistanceFieldShadowing	Whether the distance field shadowing feature is allowed.
r.DOF.Gather.AccumulatorQuality	Controles the quality of the gathering accumulator.
r.DOF.Gather.EnableBokehSettings	Whether to applies bokeh settings on foreground and background gathering. 0: Disable; 1: Enable (default).
r.DOF.Gather.PostfilterMethod	Method to use to post filter a gather pass. 0: None; 1: Per RGB channel median 3x3 (default); 2: Per RGB channel max 3x3.
r.DOF.Gather.RingCount	Number of rings for gathering kernels [[3; 5]]. Default to 5.
r.DOF.Kernel.MaxBackgroundRadius	Maximum size of the background bluring radius in screen space (default=0.025).
r.DOF.Kernel.MaxForegroundRadius	Maximum size of the foreground bluring radius in screen space (default=0.025).
r.DOF.Recombine.EnableBokehSettings	Whether to applies bokeh settings on slight out of focus done in recombine pass. 0: Disable; 1: Enable (default).
r.DOF.Recombine.MinFullresBlurRadius	Minimal blurring radius used in full resolution pixel width to actually do DOF when slight out of focus is enabled (default = 0.1).
r.DOF.Recombine.Quality	Configures the quality of the recombine pass. 0: No slight out of focus; 1: Slight out of focus 24spp; 2: Slight out of focus 32spp (default).
r.DOF.Scatter.BackgroundCompositing	Compositing mode of the background hybrid scattering. 0: Disabled; 1: Additive; 2: Gather occlusion (default).
r.DOF.Scatter.EnableBokehSettings	Whether to enable bokeh settings on scattering. 0: Disable; 1: Enable (default).
r.DOF.Scatter.ForegroundCompositing	Compositing mode of the foreground hybrid scattering. 0: Disabled; 1: Additive (default).
r.DOF.Scatter.MaxSpriteRatio	Maximum ratio of scattered pixel quad as sprite, usefull to control DOF's scattering upperbound. 1 will allow to scatter 100% pixel quads, whereas 0.2 will only allow 20% (default = 0.1).
r.DOF.Scatter.MinCocRadius	Minimal Coc radius required to be scattered (default = 3).
r.DOF.Scatter.NeighborCompareMaxColor	Controles the linear color clamping upperbound applied before color of pixel and neighbors are compared. To low, and you may not scatter enough; to high you may scatter unnecessarily too much in highlights (Default: 10).
r.DOF.TemporalAAQuality	Quality of temporal AA pass done in DOF. 0: Faster but lower quality; 1: Higher quality pass (default).
r.DoLazyStaticMeshUpdate	If true, then do not add meshes to the static mesh draw lists until they are visible. Experiemental option.
r.DontLimitOnBattery	0: Limit performance on devices with a battery.(default) 1: Do not limit performance due to device having a battery.
r.DoTiledReflections	Compute Reflection Environment with Tiled compute shader.. 0: off 1: on (default)
r.DownsampledOcclusionQueries	Whether to issue occlusion queries to a downsampled depth buffer
r.DrawRectangleOptimization	Controls an optimization for DrawRectangle(). When enabled a triangle can be used to draw a quad in certain situations (viewport sized quad). Using a triangle allows for slightly faster post processing in lower resolutions but can not always be used. 0: Optimization is disabled, DrawDenormalizedQuad always render with quad 1: Optimization is enabled, a triangle can be rendered where specified (default)
r.DriverDetectionMethod	Defines which implementation is used to detect the GPU driver (to check for old drivers, logs and statistics) 0: Iterate available drivers in registry and choose the one with the same name, if in question use next method (happens) 1: Get the driver of the primary adapter (might not be correct when dealing with multiple adapters) 2: Use DirectX LUID (would be the best, not yet implemented) 3: Use Windows functions, use the primary device (might be wrong when API is using another adapter) 4: Use Windows functions, use names such as DirectX Device (newest, most promising)
r.DumpGPU.Buffer	Whether to dump buffer. 0: Ignores all buffers 1: Dump only buffers' descriptors 2: Dump buffers' descriptors and binaries (default)
r.DumpGPU.ConsoleVariables	Whether to dump rendering console variables (enabled by default).
r.DumpGPU.Directory	Directory to dump to.
r.DumpGPU.Draws	Whether to dump resource after each individual draw call (disabled by default).
r.DumpGPU.Explore	Whether to open file explorer to where the GPU dump on completion (enabled by default).
r.DumpGPU.Mask	Whether to include GPU mask in the name of each Pass (has no effect unless system has multiple GPUs).
r.DumpGPU.PassParameters	Whether to dump the pass parameters.
r.DumpGPU.Root	Allows to filter the tree when using r.DumpGPU command, the pattern match is case sensitive.
r.DumpGPU.Screenshot	Whether to take a final screenshot.
r.DumpGPU.Test.EnableDiskWrite	Master switch whether any files should be written to disk, used for r.DumpGPU automation tests to not fill up workers' hard drive.
r.DumpGPU.Test.PrettifyResourceFileNames	Whether the resource file names should include resource name. May increase the likelyness of running into Windows' filepath limit.
r.DumpGPU.Texture	Whether to dump textures. 0: Ignores all textures 1: Dump only textures' descriptors 2: Dump textures' descriptors and binaries (default)
r.DumpGPU.Viewer.Visualize	Name of RDG output resource to automatically open in the dump viewer.
r.DumpingMovie	Allows to dump each rendered frame to disk (slow fps, names MovieFrame..). <=0:off (default), <0:remains on, >0:remains on for n frames (n is the number specified)
r.DumpPipelineCache	Dump current cache stats.
r.DumpRenderTargetPoolMemory	Dump allocation information for the render target pool.
r.DumpShaderDebugInfo	Dumps debug info for compiled shaders to GameName/Saved/ShaderDebugInfo When set to 1, debug info is dumped for all compiled shader When set to 2, it is restricted to shaders with compilation errors When set to 3, it is restricted to shaders with compilation errors or warnings The debug info is platform dependent, but usually includes a preprocessed version of the shader source. Global shaders automatically dump debug info if r.ShaderDevelopmentMode is enabled, this cvar is not necessary. On iOS, if the PowerVR graphics SDK is installed to the default path, the PowerVR shader compiler will be called and errors will be reported during the cook.
r.DumpShaderDebugShortNames	Only valid when r.DumpShaderDebugInfo > 0. When set to 1, will shorten names factory and shader type folder names to avoid issues with long paths.
r.DumpShaderDebugWorkerCommandLine	Only valid when r.DumpShaderDebugInfo > 0. When set to 1, it will generate a file that can be used with ShaderCompileWorker's -directcompile.
r.DumpShadows	Dump shadow setup (for developer only, only for non shiping build)
r.DumpTransitionsForResource	Prints callstack when the given resource is transitioned. Only implemented for DX11 at the moment.Name of the resource to dump
r.DX12NVAfterMathEnabled	Use NV Aftermath for GPU crash analysis in D3D12
r.DX12NVAfterMathTrackResources	Enable NV Aftermath resource tracing in D3D12
r.DynamicGlobalIlluminationMethod	0 - None. Global Illumination can be baked into Lightmaps but no technique will be used for Dynamic Global Illumination. 1 - Lumen. Use Lumen Global Illumination for all lights, emissive materials casting light and SkyLight Occlusion. Requires 'Generate Mesh Distance Fields' enabled for Software Ray Tracing and 'Support Hardware Ray Tracing' enabled for Hardware Ray Tracing. 2 - SSGI. Standalone Screen Space Global Illumination. Low cost, but limited by screen space information. 3 - RTGI. Ray Traced Global Illumination technique. Deprecated, use Lumen Global Illumination instead. 4 - Plugin. Use a plugin for Global Illumination.
r.DynamicRes.ChangePercentageThreshold	Minimal increase percentage threshold to alow when changing resolution.
r.DynamicRes.CPUBoundScreenPercentage	Screen percentage to converge to when CPU bound. This can be used when GPU and CPU share same memory.
r.DynamicRes.CPUTimeHeadRoom	Head room for the threads compared GPU time to avoid keep getting resolution fraction shrinking down when CPU bound (in milliseconds).
r.DynamicRes.FrameTimeBudget	Frame's time budget in milliseconds.
r.DynamicRes.FrameWeightExponent	Recursive weight of frame N-1 against frame N.
r.DynamicRes.GPUTimingMeasureMethod	Selects the method to use to measure GPU timings. 0: Same as stat unit (default); 1: Timestamp queries.
r.DynamicRes.HistorySize	Number of frames keept in the history.
r.DynamicRes.IncreaseAmortizationBlendFactor	Amortization blend factor when scale resolution back up to reduce resolution fraction oscillations.
r.DynamicRes.MaxConsecutiveOverbudgetGPUFrameCount	Maximum number of consecutive frame tolerated over GPU budget.
r.DynamicRes.MaxScreenPercentage	Maximal screen percentage.
r.DynamicRes.MinResolutionChangePeriod	Minimal number of frames between resolution changes, important to avoid input sample position interferences in TAA upsample.
r.DynamicRes.MinScreenPercentage	Minimal screen percentage.
r.DynamicRes.OperationMode	Select the operation mode for dynamic resolution. 0: Disabled (default); 1: Enable according to the game user settings; 2: Enable regardless of the game user settings.
r.DynamicRes.OutlierThreshold	Ignore frame timing that have Game thread or render thread X time more than frame budget.
r.DynamicRes.TargetedGPUHeadRoomPercentage	Targeted GPU headroom (in percent from r.DynamicRes.FrameTimeBudget).
r.DynamicRes.TestScreenPercentage	Forces the screen percentage to a particular value with dynamic res. 0: Disabled (default); > 0: Screen percentage is enabled.
r.EarlyInitDynamicShadows	Starts shadow culling tasks earlier in the frame.
r.EarlyZPass	Whether to use a depth only pass to initialize Z culling for the base pass. Cannot be changed at runtime. Note: also look at r.EarlyZPassMovable 0: off 1: good occluders only: not masked, and large on screen 2: all opaque (including masked) x: use built in heuristic (default is 3)
r.EarlyZPassOnlyMaterialMasking	Whether to compute materials' mask opacity only in early Z pass. Changing this setting requires restarting the editor. Note: Needs r.EarlyZPass == 2 && r.EarlyZPassMovable == 1
r.EarlyZSortMasked	Sort EarlyZ masked draws to the end of the draw order.
r.Editor.2DGridFade	Tweak to define the grid rendering in 2D viewports.
r.Editor.2DSnapFade	Tweak to define the grid rendering in 2D viewports.
r.Editor.2DSnapMin	Tweak to define the grid rendering in 2D viewports.
r.Editor.2DSnapScale	Tweak to define the grid rendering in 2D viewports.
r.Editor.3DGridFade	Tweak to define the grid rendering in 3D viewports.
r.Editor.3DSnapFade	Tweak to define the grid rendering in 3D viewports.
r.Editor.AlignedOrthoZoom	Only affects the editor ortho viewports. 0: Each ortho viewport zoom in defined by the viewport width 1: All ortho viewport zoom are locked to each other to allow axis lines to be aligned with each other.
r.Editor.MaxNumInstancesDetails	Maximum number of instances shown in the details panel. Above this value, instances are hidden by default. < 0 : No maximum
r.Editor.NewLevelGrid	Wether to show the new editor level grid 0: off 1: Analytical Antialiasing 2: Texture based(default)
r.Editor.SkipSourceControlCheckForEditablePackages	Whether to skip the source control status check for editable packages, 0: Disable (Default), 1: Enable
r.Editor.TemporalUpsampleDepth	Temporal upsample factor of the depth buffer for depth testing editor primitives against.
r.Editor.Viewport.HighDPI	Controls whether editor & PIE viewports can be displayed at high DPI.
r.Editor.Viewport.MaxRenderingResolution	Controls the absolute maximum number of rendered pixel in editor viewports.
r.Editor.Viewport.MinRenderingResolution	Controls the minimum number of rendered pixel by default in editor viewports.
r.Editor.Viewport.OverridePIEScreenPercentage	Apply editor viewports' default screen percentage settings to game viewport clients in PIE.
r.Editor.Viewport.ScreenPercentage	Controls the editor viewports' default screen percentage when using r.Editor.Viewport.ScreenPercentageMode=0.
r.Editor.Viewport.ScreenPercentageMode.NonRealTime	Controls the default screen percentage mode for non-realtime editor viewports.
r.Editor.Viewport.ScreenPercentageMode.RealTime	Controls the default screen percentage mode for realtime editor viewports.
r.EmitMeshDrawEvents	Emits a GPU event around each drawing policy draw call. /nUseful for seeing stats about each draw call, however it greatly distorts total time and time per draw call.
r.Emitter.FastPoolEnable	Should we use fast pools for emitters. 0: Don't pool anything 1: Pool the emitters bro (default)
r.Emitter.FastPoolMaxFreeSize	Max free pool size to keep around without cleaning up.
r.Emitter.SkipRibbonSpawnInterp	Ignore velocity based offsets when interpolating. This prevents ribbon quads from overlapping eachother (default=1)
r.EmitterSpawnRateScale	A global scale upon the spawn rate of emitters. Emitters can choose to apply or ignore it via their bApplyGlobalSpawnRateScale property.
r.EnableAsyncComputeTranslucencyLightingVolumeClear	Whether to clear the translucency lighting volume using async compute.
r.EnableComputeBuildHZB	If zero, build HZB using graphics pipeline.
r.EnableDebugSpam_GetObjectPositionAndScale	Enables or disables debug log spam for a bug in FParticleSystemSceneProxy::GetObjectPositionAndScale()
r.EnableFrustumCull	Enables or disables frustum culling. Useful for comparing results to ensure culling is functioning properly.
r.EnableMorphTargets	Enable Morph Targets
r.EnableMultiGPUForkAndJoin	Whether to allow unused GPUs to speedup rendering by sharing work.
r.EnableStereoEmulation	Emulate stereo rendering
r.ExpandAllOcclusionTestedBBoxesAmount	Amount to expand all occlusion test bounds by.
r.ExpandNewlyOcclusionTestedBBoxesAmount	If we don't occlusion test a primitive for r.GFramesNotOcclusionTestedToExpandBBoxes frames, then we expand the BBox when we do occlusion test it for a few frames by this amount. See also r.FramesToExpandNewlyOcclusionTestedBBoxes, r.GFramesNotOcclusionTestedToExpandBBoxes.
r.ExposureOffset	For adjusting the exposure on top of post process settings and eye adaptation. For developers only. 0:default
r.ExrReadAndProcessOnGPU	Allows reading of Large Uncompressed EXR files directly into Structured Buffer. and be processed on GPU
r.EyeAdaptation.Basic.Compute	Use Pixel or Compute Shader to compute the basic eye adaptation. = 0 : Pixel Shader > 0 : Compute Shader (default)
r.EyeAdaptation.BlackHistogramBucketInfluence	This parameter controls how much weight to apply to completely dark 0.0 values in the exposure histogram. When set to 1.0, fully dark pixels will accumulate normally, whereas when set to 0.0 fully dark pixels will have no influence.
r.EyeAdaptation.ExponentialTransitionDistance	The auto exposure moves linearly, but when it gets ExponentialTransitionDistance F-stops away from the target exposure it switches to as slower exponential function.
r.EyeAdaptation.LensAttenuation	The camera lens attenuation (q). Set this number to 0.78 for lighting to be unitless (1.0cd/m^2 becomes 1.0 at EV100) or 0.65 to match previous versions (1.0cd/m^2 becomes 1.2 at EV100).
r.EyeAdaptation.MethodOverride	Override the camera metering method set in post processing volumes -2: override with custom settings (for testing Basic Mode) -1: no override 1: Auto Histogram-based 2: Auto Basic 3: Manual
r.EyeAdaptation.PreExposureOverride	Overide the scene pre-exposure by a custom value. = 0 : No override > 0 : Override PreExposure
r.EyeAdaptation.VisualizeDebugType	When enabling Show->Visualize->HDR (Eye Adaptation) is enabled, this flag controls the scene color. 0: Scene Color after tonemapping (default). 1: Histogram Debug
r.EyeAdaptationQuality	Defines the eye adaptation quality which allows to adjust for quality or performance. <=0: off (fastest) 1: low quality (e.g. non histogram based, not yet implemented) 2: normal quality (default) 3: high quality (e.g. screen position localized, not yet implemented)
r.FastBlurThreshold	Defines at what radius the Gaussian blur optimization kicks in (estimated 25% - 40% faster). The optimization uses slightly less memory and has a quality loss on smallblur radius. 0: use the optimization always (fastest, lowest quality) 3: use the optimization starting at a 3 pixel radius (quite fast) 7: use the optimization starting at a 7 pixel radius (default) >15: barely ever use the optimization (high quality)
r.FASTBuild.JobProcessor.MaxTimeWithPendingJobs	Specifies how much time in seconds we will wait to have the min amount of pending jobs. Past this time, the build will start anyways. Default = 10
r.FASTBuild.JobProcessor.MinBatchSize	Minimum number of shaders to compile with FASTBuild. Default = 100
r.FASTBuild.JobProcessor.SleepTimeBetweenActions	How much time the job processor thread should sleep between actions .
r.FASTBuildController.Enabled	Enables or disables the use of FASTBuild to build shaders. 0: Controller will not be used (shaders will be built locally or using other controllers). 1: Distribute builds using FASTBuild.
r.FASTBuildController.SendAllPossibleShaderDependencies	Send all possible dependencies of the shaders to the remote machines.0: Use dependencies array reported in the task structure. 1: Brute-force discover all possible dependencies.
r.FASTBuildController.SendSCWDebugSymbols	Enable when distributed shader compiler workers crash. 0: Do not send along debug information in FASTBuild. 1: Send along debug information in FASTBuild.
r.FastVRam.BokehDOF
r.FastVRam.CircleDOF
r.FastVRam.CombineLUTs
r.FastVRam.CustomDepth
r.FastVRam.DBufferA
r.FastVRam.DBufferB
r.FastVRam.DBufferC
r.FastVRam.DBufferMask
r.FastVRam.DistanceFieldAOBentNormal
r.FastVRam.DistanceFieldAODownsampledBentNormal
r.FastVRam.DistanceFieldAOHistory
r.FastVRam.DistanceFieldAOScreenGridResources
r.FastVRam.DistanceFieldCulledObjectBuffers
r.FastVRam.DistanceFieldIrradiance
r.FastVRam.DistanceFieldNormal
r.FastVRam.DistanceFieldShadows
r.FastVRam.DistanceFieldTileIntersectionResources
r.FastVRam.Distortion
r.FastVRam.DOFPostfilter
r.FastVRam.DOFReduce
r.FastVRam.DOFSetup
r.FastVRam.Downsample
r.FastVRam.EyeAdaptation
r.FastVRam.ForwardLightingCullingResources
r.FastVRam.GBufferA
r.FastVRam.GBufferB
r.FastVRam.GBufferC
r.FastVRam.GBufferD
r.FastVRam.GBufferE
r.FastVRam.GBufferF
r.FastVRam.GBufferVelocity
r.FastVRam.GlobalDistanceFieldCullGridBuffers
r.FastVRam.Histogram
r.FastVRam.HistogramReduce
r.FastVRam.HZB
r.FastVRam.MotionBlur
r.FastVRam.PostProcessMaterial
r.FastVRam.SceneColor
r.FastVRam.SceneDepth
r.FastVRam.ScreenSpaceAO
r.FastVRam.ScreenSpaceShadowMask
r.FastVRam.SeparateTranslucency
r.FastVRam.SeparateTranslucencyModulate
r.FastVRam.ShadowCSM
r.FastVRam.ShadowPerObject
r.FastVRam.ShadowPointLight
r.FastVRam.SSR
r.FastVRam.Tonemap
r.FastVRam.Upscale
r.FastVRam.VelocityFlat
r.FastVRam.VelocityMax
r.FastVRam.VolumetricFog
r.FeatureLevelPreview	If 1 the quick settings menu will contain an option to enable feature level preview modes
r.FilmGrain	Whether to enable film grain.
r.FilmGrain.CacheTextureConstants	Wether the constants related to the film grain should be cached.
r.FilmGrain.SequenceLength	Length of the random sequence for film grain (preferably a prime number, default=97).
r.Filter.LoopMode	Controls when to use either dynamic or unrolled loops to iterates over the Gaussian filtering. This passes is used for Gaussian Blur, Bloom and Depth of Field. The dynamic loop allows up to 128 samples versus the 32 samples of unrolled loops, but add an additional cost for the loop's stop test at every iterations. 0: Unrolled loop only (default; limited to 32 samples). 1: Fall back to dynamic loop if needs more than 32 samples. 2: Dynamic loop only.
r.Filter.SizeScale	Allows to scale down or up the sample count used for bloom and Gaussian depth of field (scale is clamped to give reasonable results). Values down to 0.6 are hard to notice 1 full quality (default) >1 more samples (slower) <1 less samples (faster, artifacts with HDR content or boxy results with GaussianDOF)
r.FinishCurrentFrame	If on, the current frame will be forced to finish and render to the screen instead of being buffered. This will improve latency, but slow down overall performance.
r.FlushMaterialUniforms
r.FlushRHIThreadOnSTreamingTextureLocks	If set to 0, we won't do any flushes for streaming textures. This is safe because the texture streamer deals with these hazards explicitly.
r.Fog	0: disabled 1: enabled (default)
r.FogDensity	Allows to override the FogDensity setting (needs ExponentialFog in the level). Using a strong value allows to quickly see which pixel are affected by fog. Using a start distance allows to cull pixels are can speed up rendering. <0: use default settings (default: -1) >=0: override settings by the given value (0:off, 1=very dense fog)
r.FogStartDistance	Allows to override the FogStartDistance setting (needs ExponentialFog in the level). <0: use default settings (default: -1) >=0: override settings by the given value (in world units)
r.FogUseDepthBounds	Allows enable depth bounds optimization on fog full screen pass. false: disabled true: enabled (default)
r.ForceAllCoresForShaderCompiling	When set to 1, it will ignore INI settings and launch as many ShaderCompileWorker instances as cores are available. Improves shader throughput but for big projects it can make the machine run OOM
r.ForceDebugViewModes	0: Setting has no effect. 1: Forces debug view modes to be available, even on cooked builds.2: Forces debug view modes to be unavailable, even on editor builds. Removes many shader permutations for faster shader iteration.
r.ForceHighestMipOnUITextures	If set to 1, texutres in the UI Group will have their highest mip level forced.
r.ForceLOD	LOD level to force, -1 is off.
r.ForceLODShadow	LOD level to force for the shadow map generation only, -1 is off.
r.ForceSceneHasDecals	Whether to always assume that scene has decals, so we don't switch depth state conditionally. This can significantly reduce total number of PSOs at a minor GPU cost.
r.Forward.LightGridPixelSize	Size of a cell in the light grid, in pixels.
r.Forward.LightGridSizeZ	Number of Z slices in the light grid.
r.Forward.LightLinkedListCulling	Uses a reverse linked list to store culled lights, removing the fixed limit on how many lights can affect a cell - it becomes a global limit instead.
r.Forward.MaxCulledLightsPerCell	Controls how much memory is allocated for each cell for light culling. When r.Forward.LightLinkedListCulling is enabled, this is used to compute a global max instead of a per-cell limit on culled lights.
r.ForwardShading	Whether to use forward shading on desktop platforms - requires Shader Model 5 hardware. Forward shading has lower constant cost, but fewer features supported. 0:off, 1:on This rendering path is a work in progress with many unimplemented features, notably only a single reflection capture is applied per object and no translucency dynamic shadow receiving.
r.FramesToExpandNewlyOcclusionTestedBBoxes	If we don't occlusion test a primitive for r.GFramesNotOcclusionTestedToExpandBBoxes frames, then we expand the BBox when we do occlusion test it for this number of frames. See also r.GFramesNotOcclusionTestedToExpandBBoxes, r.ExpandNewlyOcclusionTestedBBoxesAmount
r.FreeReflectionScratchAfterUse	Free reflection scratch render targets after use.
r.FreeSkeletalMeshBuffers	Controls whether skeletal mesh buffers are kept in CPU memory to support merging of skeletal meshes. 0: Keep buffers(default) 1: Free buffers
r.FreezeMouseCursor	Free the mouse cursor position, for passes which use it to display debug information. 0: default 1: freeze mouse cursor position at current location
r.FrustumCullNumWordsPerTask	Performance tweak. Controls the granularity for the ParallelFor for frustum culling.
r.FullScreenMode	Defines how we do full screen when requested (e.g. command line option -fullscreen or in ini [SystemSettings] fullscreen=true) 0: normal full screen (renders faster, more control over vsync, less GPU memory, 10bit color if possible) 1: windowed full screen (quick switch between applications and window mode, slight performance loss) any other number behaves like 0
r.FXAA.Quality	Selects the quality permutation of FXAA. 0: Console 1: PC medium-dither 3-sample 2: PC medium-dither 5-sample 3: PC medium-dither 8-sample 4: PC low-dither 12-sample (Default) 5: PC extrem quality 12-samples
r.Gamma	Gamma on output
r.GaussianBloom.Cross	Experimental feature to give bloom kernel a more bright center sample (values between 1 and 3 work without causing aliasing) Existing bloom get lowered to match the same brightness <0 for a anisomorphic lens flare look (X only) 0 off (default) >0 for a cross look (X and Y)
r.GBufferDiffuseSampleOcclusion	Whether the gbuffer contain occlusion information for individual diffuse samples.
r.GBufferFormat	Defines the memory layout used for the GBuffer. (affects performance, mostly through bandwidth, quality of normals and material attributes). 0: lower precision (8bit per component, for profiling) 1: low precision (default) 3: high precision normals encoding 5: high precision
r.GeneralPurposeTweak	Useful for low level shader development to get quick iteration time without having to change any c++ code. Value maps to Frame.GeneralPurposeTweak inside the shaders. Example usage: Multiplier on some value to tweak, toggle to switch between different algorithms (Default: 1.0) DON'T USE THIS FOR ANYTHING THAT IS CHECKED IN. Compiled out in SHIPPING to make cheating a bit harder.
r.GeneralPurposeTweak2	Useful for low level shader development to get quick iteration time without having to change any c++ code. Value maps to Frame.GeneralPurposeTweak2 inside the shaders. Example usage: Multiplier on some value to tweak, toggle to switch between different algorithms (Default: 1.0) DON'T USE THIS FOR ANYTHING THAT IS CHECKED IN. Compiled out in SHIPPING to make cheating a bit harder.
r.GenerateMeshDistanceFields	Whether to build distance fields of static meshes, needed for Lumen Software Ray Tracing and Distance Field AO, which is used to implement Movable SkyLight shadows. Enabling will increase mesh build times and memory usage. Changing this value will cause a rebuild of all static meshes.
r.GeometryCollection.Nanite	Render geometry collections using Nanite.
r.GeometryCollectionOptimizedTransforms	Whether to optimize transform update by skipping automatic updates in GPUScene.
r.GeometryCollectionSetDynamicData.ISPC	Whether to use ISPC optimizations to set dynamic data in geometry collections
r.GeometryCollectionTripleBufferUploads	Whether to triple buffer geometry collection uploads, which allows Lock_NoOverwrite uploads which are much faster on the GPU with large amounts of data.
r.GFramesNotOcclusionTestedToExpandBBoxes	If we don't occlusion test a primitive for this many frames, then we expand the BBox when we do occlusion test it for a few frames. See also r.ExpandNewlyOcclusionTestedBBoxesAmount, r.FramesToExpandNewlyOcclusionTestedBBoxes
r.GlobalDistanceFieldHeightFieldThicknessScale	Thickness of the height field when it's entered into the global distance field, measured in distance field voxels. Defaults to 4 which means 4x the voxel size as thickness.
r.GlobalIllumination.Denoiser.HistoryConvolution.KernelSpreadFactor	Multiplication factor applied on the kernel sample offset (default=3).
r.GlobalIllumination.Denoiser.HistoryConvolution.SampleCount	Number of samples to use for history post filter (default = 1).
r.GlobalIllumination.Denoiser.PreConvolution	Number of pre-convolution passes (default = 1).
r.GlobalIllumination.Denoiser.ReconstructionSamples	Maximum number of samples for the reconstruction pass (default = 16).
r.GlobalIllumination.Denoiser.TemporalAccumulation	Accumulates the samples over multiple frames.
r.gpucrash.collectionenable	Stores GPU crash data from scoped events when a applicable crash debugging system is available.
r.gpucrash.datadepth	Limits the amount of marker scope depth we record for GPU crash debugging to the given scope depth.
r.GPUCrashDebugging	Enable vendor specific GPU crash analysis tools
r.GPUCrashDebugging.Aftermath.Callstack	Enable callstack capture in Aftermath dumps
r.GPUCrashDebugging.Aftermath.Markers	Enable draw event markers in Aftermath dumps
r.GPUCrashDebugging.Aftermath.ResourceTracking	Enable resource tracking for Aftermath dumps
r.GPUCrashDebugging.Aftermath.TrackAll	Enable maximum tracking for Aftermath dumps
r.GPUCrashDump	Enable vendor specific GPU crash dumps
r.GPUCrashOnOutOfMemory	Enable crash reporting on GPU OOM
r.GPUCsvStatsEnabled	Enables or disables GPU stat recording to CSVs
r.GPUDefrag.AllowOverlappedMoves	Allows defrag relocations that partially overlap themselves.
r.GPUDefrag.EnableTimeLimits	Limits CPU time spent doing GPU defragmentation.
r.GPUDefrag.MaxRelocations	Limits the number of total relocations in a frame regardless of number of bytes moved..
r.GPUMessage.LogAllMessages	Log all messages to the console. 0: Disabled 1: Enabled
r.GPUMessage.MaxBufferSize	Specifies the maximum size of the GPU message buffer, in KiB. default: 64
r.GPUParticle.AFRReinject	Toggle optimization when running in AFR to re-inject particle injections on the next GPU rather than doing a slow GPU->GPU transfer of the texture data 0: Reinjection off 1: Reinjection on
r.GPUParticle.FixDeltaSeconds	GPU particle fix delta seconds.
r.GPUParticle.FixTolerance	Delta second tolerance before switching to a fix delta seconds.
r.GPUParticle.MaxNumIterations	Max number of iteration when using a fix delta seconds.
r.GPUParticle.Simulate	Enable or disable GPU particle simulation
r.GpuProfilerMaxEventBufferSizeKB	Size of the scratch buffer in kB.
r.GPUScene.AllowDeferredAllocatorMerges
r.GPUScene.DebugDrawRange	Maximum distance the to draw instance bounds, the default is -1.0 <=> infinite range.
r.GPUScene.DebugMode	Debug Rendering Mode: 0 - (show nothing, decault) 1 - Draw All 2 - Draw Selected (in the editor) 3 - Draw Updated (updated this frame) You can use r.GPUScene.DebugDrawRange to limit the range
r.GPUScene.InstanceBVH	Add instances to BVH. (WIP)
r.GPUScene.InstanceUploadViaCreate	When uploading GPUScene InstanceData, upload via resource creation when the RHI supports it efficiently.
r.GPUScene.MaxPooledUploadBufferSize	Maximum size of GPU Scene upload buffer size to pool.
r.GPUScene.ParallelUpdate
r.GPUScene.UploadEveryFrame	Whether to upload the entire scene's primitive data every frame. Useful for debugging.
r.GPUScene.ValidateInstanceBuffer	Whether to readback the GPU instance data and assert if it doesn't match the RT primitive data. Useful for debugging.
r.GPUScene.ValidatePrimitiveBuffer	Whether to readback the GPU primitive data and assert if it doesn't match the RT primitive data. Useful for debugging.
r.GPUSkin.CopyBones.ISPC	Whether to use ISPC optimizations when copying bones for GPU skinning
r.GPUSkin.Limit2BoneInfluences	Whether to use 2 bones influence instead of default 4/8 for GPU skinning. Cannot be changed at runtime.
r.GpuSkin.Pool	Should we pool gpu skins. 0: Don't pool anything 1: Pool gpu skins bro (default)
r.GPUSkin.Support16BitBoneIndex	If enabled, a new mesh imported will use 8 bit (if <=256 bones) or 16 bit (if > 256 bones) bone indices for rendering.
r.GPUSkin.UnlimitedBoneInfluences	Whether to use unlimited bone influences instead of default 4/8 for GPU skinning. Cannot be changed at runtime.
r.GPUSkin.UnlimitedBoneInfluencesThreshold	Unlimited Bone Influences Threshold to use unlimited bone influences buffer if r.GPUSkin.UnlimitedBoneInfluences is enabled. Should be unsigned int. Cannot be changed at runtime.
r.GPUStatsChildTimesIncluded	If this is enabled, the child stat timings will be included in their parents' times. This presents problems for non-hierarchical stats if we're expecting them to add up to the total GPU time, so we probably want this disabled.
r.GPUStatsEnabled	Enables or disables GPU stat recording
r.GPUStatsMaxQueriesPerFrame	Limits the number of timestamps allocated per frame. -1 = no limit
r.GPUTracingStatsEnabled	Enables or disables GPU stat recording to tracing profiler
r.GraphicsAdapter	User request to pick a specific graphics adapter (e.g. when using a integrated graphics card with a discrete one) For Windows D3D, unless a specific adapter is chosen we reject Microsoft adapters because we don't want the software emulation. This takes precedence over -prefer{AMD|NVidia|Intel} when the value is >= 0. -2: Take the first one that fulfills the criteria -1: Favour non integrated because there are usually faster (default) 0: Adapter #0 1: Adapter #1, ...
r.GTAO.Combined	Enable Spatial Filter for GTAO 0: Off 1: On (default)
r.GTAO.Downsample	Perform GTAO at Halfres 0: Off 1: On (default)
r.GTAO.FalloffEnd	Distance at when the occlusion completes the fall off.
r.GTAO.FalloffStartRatio	Ratio of the r.GTAO.FalloffEnd value at which it starts to fall off. Must be Between 0 and 1.
r.GTAO.FilterWidth	Size of the noise pattern and filter width 5: 5x5 Pattern (default) 4: 4x4 Pattern
r.GTAO.NumAngles	How Many Angles we choose per pixel Must be Between 1 and 16.
r.GTAO.PauseJitter	Whether to pause Jitter when Temporal filter is off
r.GTAO.SpatialFilter	Enable Spatial Filter for GTAO 0: Off 1: On (default)
r.GTAO.TemporalFilter	Enable Temporal Filter for GTAO 0: Off 1: On (default)
r.GTAO.ThicknessBlend	A heuristic to bias occlusion for thin or thick objects. 0 : Off >0 : On - Bigger values lead to reduced occlusion 0.5: On (default)
r.GTAO.Upsample	Enable Simple or Depth aware upsample filter for GTAO 0: Simple 1: DepthAware (default)
r.GTAO.UseNormals	Whether to use GBuffer Normals or Depth Derived normals 0: Off 1: On (default)
r.GTSyncType	Determines how the game thread syncs with the render thread, RHI thread and GPU. Syncing to the GPU swap chain flip allows for lower frame latency. 0 - Sync the game thread with the render thread (default). 1 - Sync the game thread with the RHI thread. 2 - Sync the game thread with the GPU swap chain flip (only on supported platforms).
r.HairStrands.AsyncLoad	Allow groom asset to be loaded asynchronously in the editor
r.HairStrands.Binding	Enable/Disable hair binding, i.e., hair attached to skeletal meshes.
r.HairStrands.BindingValidation	Enable groom binding validation, which report error/warnings with details about the cause.
r.HairStrands.Cards	Enable/Disable hair cards rendering. This variable needs to be turned on when the engine starts.
r.HairStrands.Cards.AtlasWidthScale	Scale the cards resolution along the width
r.HairStrands.Cards.BulkData.AsyncLoading	Load hair cards/meshes data with async loading so that it is not blocking the rendering thread. This value define the MinLOD at which this happen. Default disabled (-1)
r.HairStrands.Cards.DebugAtlas	Draw debug hair cards atlas.
r.HairStrands.Cards.DebugGuides.Render	Draw debug hair cards guides (1: Rest, 2: Deformed).
r.HairStrands.Cards.DebugGuides.Sim	Draw debug hair sim guides (1: Rest, 2: Deformed).
r.HairStrands.Cards.DebugIndex	ID of the hair card to debug
r.HairStrands.Cards.DebugVoxel	Draw debug hair cards voxel datas.
r.HairStrands.Cards.DynamicAtlasRefresh	Enable dynamic refresh of hair cards texture atlas
r.HairStrands.Cards.InterpolationType	Hair cards interpolation type: 0: None, 1:physics simulation, 2: RBF deformation
r.HairStrands.Cards.MaxAtlasSample	Max super sampling count when generating cards atlas texture
r.HairStrands.Cards.MaxClusterCount	Max number of cluster for debug purpose
r.HairStrands.Cards.MaxHairStrandsSegmentPerCards	Limit the number of segment which are raytraced during the cards generation
r.HairStrands.Cards.WidthScale	Scale the cards resolution along the width
r.HairStrands.CardsAtlas.DefaultResolution	Default cards atlas resolution.
r.HairStrands.CardsAtlas.DefaultResolution.LOD0	Default cards atlas resolution for LOD0.
r.HairStrands.CardsAtlas.DefaultResolution.LOD1	Default cards atlas resolution for LOD1.
r.HairStrands.CardsAtlas.DefaultResolution.LOD2	Default cards atlas resolution for LOD2.
r.HairStrands.CardsAtlas.DefaultResolution.LOD3	Default cards atlas resolution for LOD3.
r.HairStrands.CardsAtlas.DefaultResolution.LOD4	Default cards atlas resolution for LOD4.
r.HairStrands.CardsAtlas.DefaultResolution.LOD5	Default cards atlas resolution for LOD5.
r.HairStrands.CardsAtlas.DefaultResolution.LOD6	Default cards atlas resolution for LOD6.
r.HairStrands.CardsAtlas.DefaultResolution.LOD7	Default cards atlas resolution for LOD7.
r.HairStrands.Cluster.CullingFreezeCamera	Freeze camera when enabled. It will disable HZB culling because hzb buffer is not frozen.
r.HairStrands.Cluster.Debug	Draw debug the world bounding box of hair clusters used for culling optimisation (0:off, 1:visible cluster, 2:culled cluster, 3:colored LOD, 4:LOD info).
r.HairStrands.Cluster.ForceLOD	Force a specific hair LOD.
r.HairStrands.ClusterBuilder.MaxVoxelResolution	Max voxel resolution used when building hair strands cluster data to avoid too long building time (default:128).
r.HairStrands.Components.GlobalScattering	Enable/disable hair BSDF component global scattering
r.HairStrands.Components.LocalScattering	Enable/disable hair BSDF component local scattering
r.HairStrands.Components.R	Enable/disable hair BSDF component R
r.HairStrands.Components.TRT	Enable/disable hair BSDF component TRT
r.HairStrands.Components.TT	Enable/disable hair BSDF component TT
r.HairStrands.Components.TTModel	Select hair TT model
r.HairStrands.ComposeAfterTranslucency	0: Compose hair before translucent objects. 1: Compose hair after translucent objects, but before separate translucent objects. 2: Compose hair after all/seperate translucent objects, 3: Compose hair after translucent objects but before translucent render after DOF (which allows depth testing against hair depth)
r.HairStrands.DDCLog	Enable DDC logging for groom assets and groom binding assets
r.HairStrands.DebugData.MaxSegmentPerVoxel	Max number of segments per Voxel size when creating debug data.
r.HairStrands.DebugData.VoxelSize	Voxel size use for creating debug data.
r.HairStrands.DebugMode	Draw various stats/debug mode about hair rendering
r.HairStrands.DebugMode.SampleIndex	Debug value for a given sample index (default:-1, i.e., average sample information).
r.HairStrands.DebugMode.Tangent	Draw debug tangent for hair strands and hair cards.
r.HairStrands.DebugMode.Tangent.TileSize	Draw debug tangent - Grid size for drawing debug tangent
r.HairStrands.DeepShadow.AABBScale	Scaling value for loosing/tighting deep shadow bounding volume
r.HairStrands.DeepShadow.DebugDOMIndex	Index of the DOM texture to draw
r.HairStrands.DeepShadow.DebugDOMScale	Scaling value for the DeepOpacityMap when drawing the deep shadow stats
r.HairStrands.DeepShadow.DebugMode	Color debug mode for deep shadow
r.HairStrands.DeepShadow.DensityScale	Set density scale for compensating the lack of hair fiber in an asset
r.HairStrands.DeepShadow.DepthBiasScale	Set depth bias scale for transmittance computation
r.HairStrands.DeepShadow.GPUDriven	Enable deep shadow to be driven by GPU bounding box, rather CPU ones. This allows more robust behavior
r.HairStrands.DeepShadow.InjectVoxelDepth	Inject voxel content to generate the deep shadow map instead of rasterizing groom. This is an experimental path
r.HairStrands.DeepShadow.KernelAperture	Set the aperture angle, in degree, used by the kernel for evaluating the hair transmittance when using PCSS kernel
r.HairStrands.DeepShadow.KernelType	Set the type of kernel used for evaluating hair transmittance, 0:linear, 1:PCF_2x2, 2: PCF_6x4, 3:PCSS, 4:PCF_6x6_Accurate
r.HairStrands.DeepShadow.MaxFrustumAngle	Max deep shadow frustum angle to avoid strong deformation. Default:90
r.HairStrands.DeepShadow.MipTraversal	Evaluate transmittance using mip-map traversal (faster).
r.HairStrands.DeepShadow.RandomType	Change how traversal jittering is initialized. Valid value are 0, 1, and 2. Each type makes different type of tradeoff.
r.HairStrands.DeepShadow.Resolution	Shadow resolution for Deep Opacity Map rendering. (default = 2048)
r.HairStrands.DeepShadow.ShadowMaskKernelType	Set the kernel type for filtering shadow cast by hair on opaque geometry (0:2x2, 1:4x4, 2:Gaussian8, 3:Gaussian16, 4:Gaussian8 with transmittance. Default is 4
r.HairStrands.DeepShadow.ShadowMaskPassType	Change how shadow mask from hair onto opaque geometry is generated. 0: one pass per hair group, 1: one pass for all groups.
r.HairStrands.DeepShadow.SuperSampling	Evaluate transmittance with supersampling. This is expensive and intended to be used only in cine mode.
r.HairStrands.DOFDepth	Compose hair with DOF by lerping hair depth based on its opacity.
r.HairStrands.DualScatteringRoughness	Override all roughness for the dual scattering evaluation. 0 means no override. Default:0
r.HairStrands.Dump	Dump all the loaded groom assets, groom binding assets, and instanciated groom components.
r.HairStrands.Dump.GroomAsset	Dump information of all the loaded groom assets.
r.HairStrands.Dump.GroomBindingAsset	Dump information of all the loaded groom binding assets.
r.HairStrands.Dump.GroomComponent	Dump information of all active groom components.
r.HairStrands.Enable	Enable/Disable the entire hair strands system. This affects all geometric representations (i.e., strands, cards, and meshes).
r.HairStrands.EnableAdaptiveSubsteps	Enable adaptive solver substeps
r.HairStrands.HairGroupBuilder.MaxVoxelResolution	Max voxel resolution used when voxelizing hair strands to transfer group index grom strands to cards. This avoids too long building time (default:64).
r.HairStrands.HairLUT.AbsorptionCount	Change the number of slices of the hair LUT for the absorption axis
r.HairStrands.HairLUT.IncidentAngleCount	Change the number of slices of the hair LUT for the incident angle axis
r.HairStrands.HairLUT.RoughnessCount	Change the number of slices of the hair LUT for the roughness axis
r.HairStrands.HairLUT.SampleCountScale	Change the number of sample used for computing the hair LUT. This is a multiplier, default is 1.
r.HairStrands.Interoplation.FrustumCulling	Swap rendering buffer at the end of frame. This is an experimental toggle. Default:1
r.HairStrands.Interpolation.Debug	Enable debug rendering for hair interpolation
r.HairStrands.InterpolationMetric.Angle	Hair strands interpolation metric weights for angle
r.HairStrands.InterpolationMetric.AngleAttenuation	Hair strands interpolation angle attenuation
r.HairStrands.InterpolationMetric.Distance	Hair strands interpolation metric weights for distance
r.HairStrands.InterpolationMetric.Length	Hair strands interpolation metric weights for length
r.HairStrands.LightFunction	Enables Light function on hair
r.HairStrands.LightSampleFormat	Define the format used for storing the lighting of hair samples (0: RGBA-16bits, 1: RGB-11.11.10bits)
r.HairStrands.LoadAsset	Allow groom asset to be loaded
r.HairStrands.Log	Enable warning log report for groom related asset (0: no logging, 1: error only, 2: error & warning only, other: all logs). By default all logging are enabled (-1). Value needs to be set at startup time.
r.HairStrands.Log.BindingBuilderWarning	Enable/disable warning during groom binding builder
r.HairStrands.ManualSkinCache	If skin cache is not enabled, and grooms use skinning method, this enable a simple skin cache mechanisme for groom. Default:disable
r.HairStrands.MaterialCompaction.DepthThreshold	Compaction threshold for depth value for material compaction (in centimeters). Default 1 cm.
r.HairStrands.MaterialCompaction.TangentThreshold	Compaciton threshold for tangent value for material compaction (in degrees). Default 10 deg.
r.HairStrands.MaxSimulatedLOD	Maximum hair LOD to be simulated
r.HairStrands.Meshes	Enable/Disable hair meshes rendering. This variable needs to be turned on when the engine starts.
r.HairStrands.MeshProjection.DebugInUVsSpace	Render debug mes projection in UVs space
r.HairStrands.MeshProjection.DebugSkinCache	Render debug mes projection
r.HairStrands.MeshProjection.Render.Deformed.Frames	Render debug mes projection
r.HairStrands.MeshProjection.Render.Deformed.Triangles	Render debug mes projection
r.HairStrands.MeshProjection.Render.Rest.Frames	Render debug mes projection
r.HairStrands.MeshProjection.Render.Rest.Triangles	Render debug mes projection
r.HairStrands.MeshProjection.Sim.Deformed.Frames	Render debug mes projection
r.HairStrands.MeshProjection.Sim.Deformed.Triangles	Render debug mes projection
r.HairStrands.MeshProjection.Sim.Rest.Frames	Render debug mes projection
r.HairStrands.MeshProjection.Sim.Rest.Triangles	Render debug mes projection
r.HairStrands.MinLOD	Clamp the min hair LOD to this value, preventing to reach lower/high-quality LOD.
r.HairStrands.PathTracing.InvalidationDebug	Enable bounding box drawing for groom element causing path tracer invalidation
r.HairStrands.PathTracing.InvalidationThreshold	Define the minimal distance to invalidate path tracer output when groom changes (in cm, default: 0.5mm) Set to a negative value to disable this feature
r.HairStrands.PlotBsdf	Debug view for visualizing hair BSDF.
r.HairStrands.PlotBsdf.BaseColor	Change the base color / absorption of the debug BSDF plot.
r.HairStrands.PlotBsdf.Exposure	Change the exposure of the plot.
r.HairStrands.PlotBsdf.Roughness	Change the roughness of the debug BSDF plot.
r.HairStrands.Projection.MaxTrianglePerIteration	Change the number of triangles which are iterated over during one projection iteration step. In kilo triangle (e.g., 8 == 8000 triangles). Default is 8.
r.HairStrands.RasterizationScale	Rasterization scale to snap strand to pixel
r.HairStrands.Raytracing	Enable/Disable hair strands raytracing geometry. This is anopt-in option per groom asset/groom instance.
r.HairStrands.RaytracingProceduralSplits	Change how many AABBs are used per hair segment to balance between BVH build cost and ray tracing performance. (default: 4)
r.HairStrands.RaytracingRadiusScale	Override the per instance scale factor for raytracing hair strands geometry (0: disabled, >0:enabled)
r.HairStrands.RectLightingOptim	Hair Visibility use projected view rect to light only relevant pixels
r.HairStrands.ScatterSceneLighting	Enable scene color lighting scattering into hair (valid for short hair only).
r.HairStrands.Selection.CoverageThreshold	Coverage threshold for making hair strands outline selection finer
r.HairStrands.Shadow.CastShadowWhenNonVisible	Enable shadow casting for hair strands even when culled out from the primary view
r.HairStrands.Shadow.CullPerObjectShadowCaster	Enable CPU culling of object casting per-object shadow (stationnary object)
r.HairStrands.ShadowRasterizationScale	Rasterization scale to snap strand to pixel in shadow view
r.HairStrands.Simulation	Enable/disable hair simulation
r.HairStrands.Simulation.ResetAll	Reset hair strands simulation on all groom components.
r.HairStrands.SimulationMaxDelay	Maximum tick Delay before starting the simulation
r.HairStrands.SimulationRestUpdate	Update the simulation rest pose
r.HairStrands.SkyAO	Enable (sky) AO on hair.
r.HairStrands.SkyAO.DistanceThreshold	Max distance for occlusion search.
r.HairStrands.SkyAO.SampleCount	Number of samples used for evaluating hair AO (default is set to 16).
r.HairStrands.SkyLighting	Enable sky lighting on hair.
r.HairStrands.SkyLighting.ConeAngle	Cone angle for tracing sky lighting on hair.
r.HairStrands.SkyLighting.DebugSample	Enable debug view for visualizing sample used for the sky integration
r.HairStrands.SkyLighting.DistanceThreshold	Max distance for occlusion search.
r.HairStrands.SkyLighting.IntegrationType	Hair env. lighting integration type (0:Adhoc, 1:Uniform.
r.HairStrands.SkyLighting.SampleCount	Number of samples used for evaluating multiple scattering and visible area (default is set to 16).
r.HairStrands.SkyLighting.TransmissionDensityScale	Density scale for controlling how much sky lighting is transmitted.
r.HairStrands.SkyLighting.UseViewHairCount	Use the view hair count texture for estimating background transmitted light (enabled by default).
r.HairStrands.StableRasterizationScale	Rasterization scale to snap strand to pixel for 'stable' hair option. This value can't go below 1.
r.HairStrands.Strands	Enable/Disable hair strands rendering
r.HairStrands.Strands.BulkData.AsyncLoading	Load hair strands data with async loading so that it is not blocking the rendering thread. This value define the MinLOD at which this happen. Default disabled (-1)
r.HairStrands.Strands.BulkData.ReleaseAfterUse	Release CPU bulk data once hair groom/groom binding asset GPU resources are created. This saves memory
r.HairStrands.Strands.BulkData.Validation	Validate some hair strands data at serialization/loading time.
r.HairStrands.Strands.DebugControlPoint	Draw debug hair strands control points).
r.HairStrands.Strands.Raytracing.ForceRebuildBVH	Force BVH rebuild instead of doing a BVH refit when hair positions changed
r.HairStrands.Strands.TransferPrevPos	Transfer strands prev. position to current position on LOD switching to avoid large discrepancy causing large motion vector
r.HairStrands.StrandsMode	Render debug mode for hair strands. 0:off, 1:simulation strands, 2:render strands with colored simulation strands influence, 3:hair UV, 4:hair root UV, 5: hair seed, 6: dimensions
r.HairStrands.StrandWidth	Width of hair strand
r.HairStrands.Streaming.Prediction	Enable LOD streaming prediction.
r.HairStrands.SwapType	Swap rendering buffer at the end of frame. This is an experimental toggle. Default:1
r.HairStrands.Textures.DilationCount	Number of dilation pass run onto the generated hair strands textures (Default:8).
r.HairStrands.Tile	Enable tile generation & usage for hair strands.
r.HairStrands.UseCardsInsteadOfStrands	Force cards geometry on all groom elements. If no cards data is available, nothing will be displayed
r.HairStrands.UseGPUPositionOffset	Use GPU position offset to improve hair strands position precision.
r.HairStrands.UseProxyLocalToWorld	Enable the use of the groom proxy local to world instead of extracting it from the game thread.
r.HairStrands.VelocityMagnitudeScale	Velocity magnitude (in pixel) at which a hair will reach its pic velocity-rasterization-scale under motion to reduce aliasing. Default is 100.
r.HairStrands.VelocityRasterizationScale	Rasterization scale to snap strand to pixel under high velocity
r.HairStrands.VelocityThreshold	Threshold value (in pixel) above which a pixel is forced to be resolve with responsive AA (in order to avoid smearing). Default is 3.
r.HairStrands.VelocityType	Type of velocity filtering (0:avg, 1:closest, 2:max). Default is 1.
r.HairStrands.Visibility.Clear	Clear hair strands visibility buffer
r.HairStrands.Visibility.ComputeRaster	Hair Visiblity uses raster compute.
r.HairStrands.Visibility.ComputeRaster.MaxPixelCount	Define the maximal length rasterize in compute.
r.HairStrands.Visibility.ComputeRaster.SamplePerPixel	Define the number of sampler per pixel using raster compute.
r.HairStrands.Visibility.ComputeRaster.Stochastic	Enable stochastic compute rasterization (faster, but more prone to aliasting). Experimental.
r.HairStrands.Visibility.FullCoverageThreshold	Define the coverage threshold at which a pixel is considered fully covered.
r.HairStrands.Visibility.HairCount.DistanceThreshold	Distance threshold defining if opaque depth get injected into the 'view-hair-count' buffer.
r.HairStrands.Visibility.MSAA.MeanSamplePerPixel	Scale the numer of sampler per pixel for limiting memory allocation (0..1, default 0.5f)
r.HairStrands.Visibility.MSAA.SamplePerPixel	Hair strands visibility sample count (2, 4, or 8)
r.HairStrands.Visibility.PPLL	Hair Visibility uses per pixel linked list
r.HairStrands.Visibility.PPLL.Debug	Draw debug per pixel light list rendering.
r.HairStrands.Visibility.PPLL.MeanSamplePerPixel	Scale the maximum number of node allowed for all linked list element (0..1, default 1). It will be width*height*SamplerPerPixel*Scale.
r.HairStrands.Visibility.PPLL.SamplePerPixel	The maximum number of node allowed to be independently shaded and composited per pixel. Total amount of node will be width*height*VisibilityPPLLMaxRenderNodePerPixel. The last node is used to aggregate all furthest strands to shade into a single one.
r.HairStrands.Visibility.SortByDepth	Sort hair fragment by depth and update their coverage based on ordered transmittance.
r.HairStrands.Visibility.UseCoverageMappping	Use hair count to coverage transfer function.
r.HairStrands.Visibility.WriteVelocityCoverageThreshold	Define the coverage threshold at which a pixel write its hair velocity (default: 0, i.e., write for all pixel)
r.HairStrands.Voxelization	Enable hair voxelization for transmittance evaluation
r.HairStrands.Voxelization.AABBScale	Scale the hair macro group bounding box
r.HairStrands.Voxelization.DensityScale	Scale the hair density when computing voxel transmittance. Default value is 2 (arbitraty)
r.HairStrands.Voxelization.DensityScale.AO	Scale the hair density when computing voxel AO. (Default:-1, it will use the global density scale
r.HairStrands.Voxelization.DensityScale.Environment	Scale the hair density when computing voxel environment. (Default:-1, it will use the global density scale
r.HairStrands.Voxelization.DensityScale.Raytracing	Scale the hair density when computing voxel raytracing. (Default:-1, it will use the global density scale
r.HairStrands.Voxelization.DensityScale.Shadow	Scale the hair density when computing voxel shadow. (Default:-1, it will use the global density scale
r.HairStrands.Voxelization.DensityScale.Transmittance	Scale the hair density when computing voxel transmittance. (Default:-1, it will use the global density scale
r.HairStrands.Voxelization.DepthBiasScale.Environment	Set depth bias for voxel ray marching for environement lights. Offset the origin position towards the light
r.HairStrands.Voxelization.DepthBiasScale.Light	Set depth bias for voxel ray marching for analyticaly light. Offset the origin position towards the light for transmittance computation
r.HairStrands.Voxelization.DepthBiasScale.Shadow	Set depth bias for voxel ray marching for analyticaly light. Offset the origin position towards the light for shadow computation
r.HairStrands.Voxelization.DepthBiasScale.Transmittance	Set depth bias for voxel ray marching for analyticaly light. Offset the origin position towards the light for transmittance computation
r.HairStrands.Voxelization.ForceTransmittanceAndShadow	For transmittance and shadow to be computed with density volume. This requires voxelization is enabled.
r.HairStrands.Voxelization.GPUDriven	Enable GPU driven voxelization.
r.HairStrands.Voxelization.GPUDriven.MaxPageIndexResolution	Max resolution of the page index. This is used for allocating a conservative page index buffer when GPU driven allocation is enabled.
r.HairStrands.Voxelization.InjectOpaque.BiasCount	Bias, in number of voxel, at which opaque depth is injected.
r.HairStrands.Voxelization.InjectOpaque.MarkCount	Number of voxel marked as opaque starting along the view direction beneath the opaque surface.
r.HairStrands.Voxelization.InjectOpaqueDepth	Inject opaque geometry depth into the voxel volume for acting as occluder.
r.HairStrands.Voxelization.Raymarching.SteppingScale	Stepping scale used for raymarching the voxel structure for shadow.
r.HairStrands.Voxelization.Raymarching.SteppingScale.Environment	Stepping scale used for raymarching the voxel structure, override scale for env. lighting (default -1).
r.HairStrands.Voxelization.Raymarching.SteppingScale.Raytracing	Stepping scale used for raymarching the voxel structure, override scale for raytracing (default -1).
r.HairStrands.Voxelization.Raymarching.SteppingScale.Shadow	Stepping scale used for raymarching the voxel structure, override scale for shadow (default -1).
r.HairStrands.Voxelization.Raymarching.SteppingScale.Transmission	Stepping scale used for raymarching the voxel structure, override scale for transmittance (default -1).
r.HairStrands.Voxelization.UseIndiretScatterPageAllocate	Enable indirect scatter page allocation (faster).
r.HairStrands.Voxelization.Virtual	Enable the two voxel hierachy.
r.HairStrands.Voxelization.Virtual.Adaptive	Enable adaptive voxel allocation (default = 1)
r.HairStrands.Voxelization.Virtual.Adaptive.CorrectionSpeed	Define the speed at which allocation adaption runs (value in 0..1, default = 0.25). A higher number means faster adaptation, but with a risk of oscillation i.e. over and under allocation
r.HairStrands.Voxelization.Virtual.Adaptive.CorrectionThreshold	Define the allocation margin to limit over allocation (value in 0..1, default = 0.95)
r.HairStrands.Voxelization.Virtual.ComputeRasterMaxVoxelCount	Max number of voxel which are rasterized for a given hair segment. This is for debug purpose only.
r.HairStrands.Voxelization.Virtual.DebugTraversalType	Traversal mode (0:linear, 1:mip) for debug voxel visualization.
r.HairStrands.Voxelization.Virtual.DrawDebugPage	When voxel debug rendering is enable 1: render the page bounds, instead of the voxel 2: the occupancy within the page (i.e., 8x8x8 brick)
r.HairStrands.Voxelization.Virtual.ForceMipLevel	Force a particular mip-level
r.HairStrands.Voxelization.Virtual.InvalidateEmptyPageIndex	Invalid voxel page index which does not contain any voxelized data.
r.HairStrands.Voxelization.Virtual.Jitter	Change jittered for voxelization/traversal. 0: No jitter 1: Regular randomized jitter: 2: Constant Jitter (default = 1)
r.HairStrands.Voxelization.Virtual.UseDirectPageAllocation	Use the indirect page allocation code path, but force internally direct page allocation (for debugging purpose only).
r.HairStrands.Voxelization.Virtual.VoxelPageCountPerDim	Number of voxel pages per texture dimension. The voxel page memory is allocated with a 3D texture. This value provide the resolution of this texture.
r.HairStrands.Voxelization.Virtual.VoxelPageResolution	Resolution of a voxel page.
r.HairStrands.Voxelization.Virtual.VoxelWorldSize	World size of a voxel in cm.
r.HairStrands.VoxelizationRasterizationScale	Rasterization scale to snap strand to pixel for voxelization
r.HairStrands.WriteGBufferData	Write hair hair material data into GBuffer before post processing run. 0: no write, 1: dummy write into GBuffer A/B (Normal/ShadingModel), 2: write into GBuffer A/B (Normal/ShadingModel). 2: Write entire GBuffer data. (default 1).
r.HDR.Display.ColorGamut	Color gamut of the output display: 0: Rec709 / sRGB, D65 (default) 1: DCI-P3, D65 2: Rec2020 / BT2020, D65 3: ACES, D60 4: ACEScg, D60
r.HDR.Display.OutputDevice	Device format of the output display: 0: sRGB (LDR) 1: Rec709 (LDR) 2: Explicit gamma mapping (LDR) 3: ACES 1000 nit ST-2084 (Dolby PQ) (HDR) 4: ACES 2000 nit ST-2084 (Dolby PQ) (HDR) 5: ACES 1000 nit ScRGB (HDR) 6: ACES 2000 nit ScRGB (HDR) 7: Linear EXR (HDR) 8: Linear final color, no tone curve (HDR) 9: Linear final color with tone curve
r.HDR.EnableHDROutput	Creates an HDR compatible swap-chain and enables HDR display output.0: Disabled (default) 1: Enable hardware-specific implementation
r.HDR.UI.CompositeMode	Mode used when compositing the UI layer: 0: Standard compositing 1: Shader pass to improve HDR blending
r.HDR.UI.Level	Luminance level for UI elements when compositing into HDR framebuffer (default: 1.0).
r.HeightFields.AtlasDimInTiles	Number of tiles the atlas has in one dimension
r.HeightFields.AtlasDownSampleLevel	Max number of times a suballocation can be down-sampled
r.HeightFields.AtlasTileSize	Suballocation granularity
r.HeightFields.VisibilityAtlasDimInTiles	Number of tiles the atlas has in one dimension
r.HeightFields.VisibilityAtlasDownSampleLevel	Max number of times a suballocation can be down-sampled
r.HeightFields.VisibilityAtlasTileSize	Suballocation granularity
r.HeightFieldShadowing	Whether the height field shadowing feature is allowed.
r.HFShadowAverageObjectsPerCullTile	Determines how much memory should be allocated in height field object culling data structures. Too much = memory waste, too little = flickering due to buffer overflow.
r.HFShadowQuality	Defines the height field shadow method which allows to adjust for quality or performance. 0:off, 1:low (8 steps), 2:medium (16 steps, default), 3:high (32 steps, hole aware)
r.HighQualityLightMaps	If set to 1, allow high quality lightmaps which don't bake in direct lighting of stationary lights
r.HighResScreenshot.AdditionalCmds	Additional command to execute when a high res screenshot is requested.
r.HighResScreenshotDelay	When high-res screenshots are requested there is a small delay to allow temporal effects to converge. Default: 4. Using a value below the default will disable TemporalAA for improved image quality.
r.Histogram.UseAtomic	Uses atomic to speed up the generation of the histogram.
r.HLOD	Single argument: 0 or 1 to Disable/Enable HLOD System Multiple arguments: force X where X is the HLOD level that should be forced into view
r.HLOD.DistanceOverride	If non-zero, overrides the distance that HLOD transitions will take place for all objects at the HLOD level index, formatting is as follows: 'r.HLOD.DistanceOverride 5000, 10000, 20000' would result in HLOD levels 0, 1 and 2 transitioning at 5000, 1000 and 20000 respectively.
r.HLOD.DistanceOverrideScale	Scales the value in r.HLOD.DistanceOverride, Default off. This is an optional scale intended to allow game logic to dynamically modify without impacting scalability.
r.HLOD.DitherPauseTime	HLOD dither pause time in seconds
r.HLOD.ForceDisableCastDynamicShadow	If non-zero, will set bCastDynamicShadow to false for all LODActors, regardless of the shadowing setting of their subactors.
r.HLOD.ListUnbuilt	Lists all unbuilt HLOD actors in the world
r.HLOD.MaximumLevel	How far down the LOD hierarchy to allow showing (can be used to limit quality loss and streaming texture memory usage on high scalability settings) -1: No maximum level (default) 0: Prevent ever showing a HLOD cluster instead of individual meshes 1: Allow only the first level of HLOD clusters to be shown 2+: Allow up to the Nth level of HLOD clusters to be shown
r.HZB.BuildUseCompute	Selects whether HZB should be built with compute.
r.HZBOcclusion	Defines which occlusion system is used. 0: Hardware occlusion queries 1: Use HZB occlusion system (default, less GPU and CPU cost, more conservative results) 2: Force HZB occlusion system (overrides rendering platform preferences)
r.IncludeNonVirtualTexturedLightmaps	If 'r.VirtualTexturedLightmaps' is enabled, controls whether non-VT lightmaps are generated/saved as well. Including non-VT lightmaps will constrain lightmap atlas size, which removes some of the benefit of VT lightmaps. 0: Not included. 1: Included.
r.IndirectLightingCache	Whether to use the indirect lighting cache on dynamic objects. 0 is off, 1 is on (default)
r.InstanceCulling.AllowBatchedBuildRenderingCommands	Whether to allow batching BuildRenderingCommands for GPU instance culling
r.InstanceCulling.AllowInstanceOrderPreservation	Whether or not to allow instances to preserve instance draw order using GPU compaction.
r.InstanceCulling.OcclusionCull	Whether to do per instance occlusion culling for GPU instance culling.
r.InvalidateCachedShaders	Invalidate shader cache by making a unique change to ShaderVersion.ush which is included in common.usf.To initiate actual the recompile of all shaders use "recompileshaders changed" or press "Ctrl Shift .". The ShaderVersion.ush file should be automatically checked out but it needs to be checked in to have effect on other machines.
r.IrisNormal	0 to disable iris normal. 0: off 1: on
r.KeepOverrideVertexColorsOnCPU	Keeps a CPU copy of override vertex colors. May be required for some blueprints / object spawning.
r.KeepPreCulledIndicesThreshold
r.LandscapeLOD0DistributionScale	Multiplier for the landscape LOD0DistributionSetting property
r.LandscapeLODDistributionScale	Multiplier for the landscape LODDistributionSetting property
r.LensFlareQuality	0: off but best for performance 1: low quality with good performance 2: good quality (default) 3: very good quality but bad performance
r.LightCulling.MaxDistanceOverrideKilometers	Used to override the maximum far distance at which we can store data in the light grid. If this is increase, you might want to update r.Forward.LightGridSizeZ to a reasonable value according to your use case light count and distribution. <=0: off >0: the far distance in kilometers.
r.LightCulling.Quality	Whether to run compute light culling pass. 0: off 1: on (default)
r.LightFunctionQuality	Defines the light function quality which allows to adjust for quality or performance. <=0: off (fastest) 1: low quality (e.g. half res with blurring, not yet implemented) 2: normal quality (default) 3: high quality (e.g. super-sampled or colored, not yet implemented)
r.LightMaxDrawDistanceScale	Scale applied to the MaxDrawDistance of lights. Useful for fading out local lights more aggressively on some platforms.
r.LightShaftAllowTAA	Allows temporal filtering for lightshafts. 0: off 1: on (default)
r.LightShaftBlurPasses	Number of light shaft blur passes.
r.LightShaftDownSampleFactor	Downsample factor for light shafts. range: 1..8
r.LightShaftFirstPassDistance	Fraction of the distance to the light to blur on the first radial blur pass.
r.LightShaftNumSamples	Number of samples per light shaft radial blur pass. Also affects how quickly the blur distance increases with each pass.
r.LightShaftQuality	Defines the light shaft quality (mobile and non mobile). 0: off 1: on (default)
r.LightShaftRenderToSeparateTranslucency	If enabled, light shafts will be rendered to the separate translucency buffer. This ensures postprocess materials with BL_BeforeTranslucnecy are applied before light shafts
r.LimitRenderingFeatures	Allows to quickly reduce render feature to increase render performance. This is just a quick way to alter multiple show flags and console variables in the game Disabled more feature the higher the number <=0:off, order is defined in code (can be documented here when we settled on an order)
r.ListSceneColorMaterials	Lists all materials that read from scene color.
r.LocalExposure	Whether to support local exposure
r.LocalExposure.VisualizeDebugMode	When enabling Show->Visualize->Local Exposure is enabled, this flag controls which mode to use. 0: Local Exposure 1: Base Luminance 2: Detail Luminance
r.LODFadeTime	How long LOD takes to fade (in seconds).
r.LogShaderCompilerStats	When set to 1, Log detailed shader compiler stats.
r.Lumen.DiffuseIndirect.Allow	Whether to allow Lumen Global Illumination. Lumen GI is enabled in the project settings, this cvar can only disable it.
r.Lumen.DiffuseIndirect.CardInterpolateInfluenceRadius	.
r.Lumen.DiffuseIndirect.CardTraceEndDistanceFromCamera
r.Lumen.DiffuseIndirect.CullGridDistributionLogZOffset
r.Lumen.DiffuseIndirect.CullGridDistributionLogZScale
r.Lumen.DiffuseIndirect.CullGridDistributionZScale
r.Lumen.DiffuseIndirect.CullGridPixelSize	Size of a cell in the card grid, in pixels.
r.Lumen.DiffuseIndirect.MeshSDFAverageCulledCount
r.Lumen.DiffuseIndirect.MeshSDFRadiusThreshold
r.Lumen.DiffuseIndirect.MinSampleRadius	.
r.Lumen.DiffuseIndirect.MinTraceDistance	.
r.Lumen.DiffuseIndirect.SurfaceBias	.
r.Lumen.DiffuseIndirect.TraceStepFactor	.
r.Lumen.DiffuseIndirect.VoxelStepFactor
r.Lumen.HardwareRayTracing	Uses Hardware Ray Tracing for Lumen features, when available. Lumen will fall back to Software Ray Tracing otherwise. Note: Hardware ray tracing has significant scene update costs for scenes with more than 100k instances.
r.Lumen.HardwareRayTracing.FarFieldBias	Determines bias for the far field traces. Default = 200
r.Lumen.HardwareRayTracing.Inline	Uses Hardware Inline Ray Tracing for selected Lumen passes, when available.
r.Lumen.HardwareRayTracing.LightingMode	Determines the lighting mode (Default = 0) 0: interpolate final lighting from the surface cache 1: evaluate material, and interpolate irradiance and indirect irradiance from the surface cache 2: evaluate material and direct lighting, and interpolate indirect irradiance from the surface cache 3: evaluate material, direct lighting, and unshadowed skylighting at the hit point
r.Lumen.HardwareRayTracing.MaxIterations	Limit number of ray tracing traversal iterations on supported platfoms. Incomplete misses will be treated as hitting a black surface (can cause overocculsion). Incomplete hits will be treated as a hit (can cause leaking).
r.Lumen.HardwareRayTracing.MaxTranslucentSkipCount	Determines the maximum number of translucent surfaces skipped during ray traversal (Default = 2)
r.Lumen.HardwareRayTracing.PullbackBias	Determines the pull-back bias when resuming a screen-trace ray (default = 8.0)
r.Lumen.IrradianceFieldGather	Whether to use the Irradiance Field Final Gather, an experimental opaque final gather that interpolates from pre-calculated irradiance in probes for cheaper, but lower quality GI.
r.Lumen.IrradianceFieldGather.ClipmapDistributionBase	Base of the Pow() that controls the size of each successive clipmap relative to the first.
r.Lumen.IrradianceFieldGather.ClipmapWorldExtent	World space extent of the first clipmap
r.Lumen.IrradianceFieldGather.GridResolution	Resolution of the probe placement grid within each clipmap
r.Lumen.IrradianceFieldGather.IrradianceProbeResolution	Resolution of the probe's 2d irradiance layout.
r.Lumen.IrradianceFieldGather.NumClipmaps	Number of radiance cache clipmaps.
r.Lumen.IrradianceFieldGather.NumMipmaps	Number of radiance cache mipmaps.
r.Lumen.IrradianceFieldGather.NumProbesToTraceBudget	Number of probes that can be updated in a frame before downsampling.
r.Lumen.IrradianceFieldGather.OcclusionProbeResolution	Resolution of the probe's 2d occlusion layout.
r.Lumen.IrradianceFieldGather.ProbeAtlasResolutionInProbes	Number of probes along one dimension of the probe atlas cache texture. This controls the memory usage of the cache. Overflow currently results in incorrect rendering.
r.Lumen.IrradianceFieldGather.ProbeOcclusionNormalBias	Bias along the normal to reduce self-occlusion artifacts from Probe Occlusion
r.Lumen.IrradianceFieldGather.ProbeOcclusionViewBias	Bias along the view direction to reduce self-occlusion artifacts from Probe Occlusion
r.Lumen.IrradianceFieldGather.ProbeResolution	Resolution of the probe's 2d radiance layout. The number of rays traced for the probe will be ProbeResolution ^ 2
r.Lumen.IrradianceFieldGather.RadianceCache.Stats	GPU print out Radiance Cache update stats.
r.Lumen.MaxConeSteps	Maximum steps to use for Cone Stepping of proxy cards.
r.Lumen.ProbeHierarchy	Whether to use probe based denoiser for all indirect lighting.
r.Lumen.ProbeHierarchy.AdditionalSpecularRayThreshold	Roughness treshold under which to shoot an additional ray for specular.
r.Lumen.ProbeHierarchy.AntiTileAliasing	Whether to enable anti tile aliasing.
r.Lumen.ProbeHierarchy.CounterParrallaxError	How much parrallax error is tolerated between probe in the hierarchy. Higher value is higher quality, but more expensive.
r.Lumen.ProbeHierarchy.DebugAntiTileAliasingX
r.Lumen.ProbeHierarchy.DebugAntiTileAliasingY
r.Lumen.ProbeHierarchy.Depth	Run time depth of the probe hierarchy (default to 4).
r.Lumen.ProbeHierarchy.DiffuseIndirect.MipLevel	Sample the cosine emisphere in specific mip level of the cubemap of the probes to reduce noise when can't afford many rays.
r.Lumen.ProbeHierarchy.EnableBentNormal	Whether to occlude GI by material's bent normal.
r.Lumen.ProbeHierarchy.LeafProbeSamplingDivisor	Divisor on the number of sample that should be done per texel of the probes' IBL for leaves of the hierarchy.
r.Lumen.ProbeHierarchy.MaxProbeResolution	Maximum resolution of the probes' IBL (default to 8, power of two, min at 4, max at 32).
r.Lumen.ProbeHierarchy.MaxProbeSuperSampling	Square root maximum of super sampling allowed of ray per texel of the probes' IBL (default to 2, power of two, min at 1, max at 4).
r.Lumen.ProbeHierarchy.ProbeOcclusion	Whether to do any probe occlusion.
r.Lumen.ProbeHierarchy.SamplePerPixel	Number of sample to do per full res pixel.
r.Lumen.ProbeHierarchy.ScreenSpaceProbeTracing	Whether to trace probes with screen space rays.
r.Lumen.ProbeHierarchy.SSGIProbeOcclusion	Whether to trace screen space rays to test probe occlusion.
r.Lumen.ProbeHierarchy.TileClassification	Whether to use tile classification for faster probe occlusion and probe hierarchy tracing.
r.Lumen.ProbeHierarchy.TraceMeshSDFs	.
r.Lumen.ProbeHierarchy.VoxelDiffuseProbeOcclusion	Whether to cone trace voxel to test diffuse probe occlusion.
r.Lumen.RadianceCache.DownsampleDistanceFromCamera	Probes further than this distance from the camera are always downsampled.
r.Lumen.RadianceCache.ForceFullUpdate
r.Lumen.RadianceCache.HardwareRayTracing	Enables hardware ray tracing for Lumen radiance cache (Default = 1)
r.Lumen.RadianceCache.HardwareRayTracing.Indirect	Enables indirect dispatch for hardware ray tracing for Lumen radiance cache (Default = 1)
r.Lumen.RadianceCache.HardwareRayTracing.PersistentTracingGroupCount	Determines the number of trace tile groups to submit in the 1D dispatch
r.Lumen.RadianceCache.HardwareRayTracing.Retrace.FarField	Determines whether a second trace will be fired for far-field contribution (Default = 1)
r.Lumen.RadianceCache.HardwareRayTracing.TemporaryBufferAllocationDownsampleFactor	Downsample factor on the temporary buffer used by Hardware Ray Tracing Radiance Cache. Higher downsample factors save more transient allocator memory, but may cause overflow and artifacts.
r.Lumen.RadianceCache.NumFramesToKeepCachedProbes
r.Lumen.RadianceCache.OverrideCacheOcclusionLighting
r.Lumen.RadianceCache.ShowBlackRadianceCacheLighting
r.Lumen.RadianceCache.SortTraceTiles	Whether to sort Trace Tiles by direction before tracing to extract coherency
r.Lumen.RadianceCache.SpatialFilterMaxRadianceHitAngle	In Degrees. Larger angles allow filtering of nearby features but more leaking.
r.Lumen.RadianceCache.SpatialFilterProbes	Whether to filter probe radiance between neighbors
r.Lumen.RadianceCache.SupersampleDistanceFromCamera	Only probes closer to the camera than this distance can be supersampled.
r.Lumen.RadianceCache.SupersampleTileBRDFThreshold	Value of the BRDF [0-1] above which to trace more rays to supersample the probe radiance.
r.Lumen.RadianceCache.Update	Whether to update radiance cache every frame
r.Lumen.RadianceCache.Visualize
r.Lumen.RadianceCache.VisualizeClipmapIndex	Selects which radiance cache clipmap should be visualized. -1 visualizes all clipmaps at once.
r.Lumen.RadianceCache.VisualizeProbeRadius	Whether to visualize radiance cache probe radius
r.Lumen.RadianceCache.VisualizeRadiusScale	Scales the size of the spheres used to visualize radiance cache samples.
r.Lumen.Reflections.Allow	Whether to allow Lumen Reflections. Lumen Reflections is enabled in the project settings, this cvar can only disable it.
r.Lumen.Reflections.BilateralFilter	Whether to do a bilateral filter as a last step in denoising Lumen Reflections.
r.Lumen.Reflections.BilateralFilter.DepthWeightScale	Scales the depth weight of the bilateral filter
r.Lumen.Reflections.BilateralFilter.NormalAngleThresholdScale	Scales the Normal angle threshold of the bilateral filter
r.Lumen.Reflections.BilateralFilter.NumSamples	Number of bilateral filter samples.
r.Lumen.Reflections.BilateralFilter.SpatialKernelRadius	Spatial kernel radius, as a fraction of the viewport size
r.Lumen.Reflections.BilateralFilter.StrongBlurVarianceThreshold	Pixels whose variance from the spatial resolve filter are higher than this value get a stronger bilateral blur.
r.Lumen.Reflections.DownsampleFactor
r.Lumen.Reflections.GGXSamplingBias
r.Lumen.Reflections.HairStrands.ScreenTrace	Whether to trace against hair depth for hair casting shadow onto opaques.
r.Lumen.Reflections.HairStrands.VoxelTrace	Whether to trace against hair voxel structure for hair casting shadow onto opaques.
r.Lumen.Reflections.HardwareRayTracing	Enables hardware ray tracing for Lumen reflections (Default = 1)
r.Lumen.Reflections.HardwareRayTracing.BucketMaterials	Determines whether a secondary traces will be bucketed for coherent material access (default = 1
r.Lumen.Reflections.HardwareRayTracing.Default.GroupCount	Determines the active number of groups (Default = 1)
r.Lumen.Reflections.HardwareRayTracing.Default.ThreadCount	Determines the active number of threads (Default = 32768)
r.Lumen.Reflections.HardwareRayTracing.Indirect	Enables indirect ray tracing dispatch on compatible hardware (Default = 1)
r.Lumen.Reflections.HardwareRayTracing.Retrace.FarField	Determines whether a second trace will be fired for far-field contribution (Default = 1)
r.Lumen.Reflections.HardwareRayTracing.Retrace.GroupCount	Determines the active number of groups for re-traces (Default = 1)
r.Lumen.Reflections.HardwareRayTracing.Retrace.HitLighting	Determines whether a second trace will be fired for hit-lighting for invalid surface-cache hits (Default = 0)
r.Lumen.Reflections.HardwareRayTracing.Retrace.ThreadCount	Determines the active number of threads for re-traces (Default = 32768)
r.Lumen.Reflections.HierarchicalScreenTraces.HistoryDepthTestRelativeThickness	Distance between HZB trace hit and previous frame scene depth from which to allow hits, as a relative depth threshold.
r.Lumen.Reflections.HierarchicalScreenTraces.MaxIterations	Max iterations for HZB tracing.
r.Lumen.Reflections.HierarchicalScreenTraces.MinimumOccupancy	Minimum number of threads still tracing before aborting the trace. Can be used for scalability to abandon traces that have a disproportionate cost.
r.Lumen.Reflections.HierarchicalScreenTraces.RelativeDepthThickness	Determines depth thickness of objects hit by HZB tracing, as a relative depth threshold.
r.Lumen.Reflections.MaxRayIntensity	Clamps the maximum ray lighting intensity (with PreExposure) to reduce fireflies.
r.Lumen.Reflections.MaxRoughnessToTrace
r.Lumen.Reflections.RadianceCache	Whether to reuse Lumen's ScreenProbeGather Radiance Cache, when it is available. When enabled, reflection rays from rough surfaces are shortened and distant lighting comes from interpolating from the Radiance Cache, speeding up traces.
r.Lumen.Reflections.RadianceCache.AngleThresholdScale	Controls when the Radiance Cache is used for distant lighting. A value of 1 means only use the Radiance Cache when appropriate for the reflection cone, lower values are more aggressive.
r.Lumen.Reflections.RadianceCache.ReprojectionRadiusScale	Scales the radius of the sphere around each Radiance Cache probe that is intersected for parallax correction when interpolating from the Radiance Cache.
r.Lumen.Reflections.RoughnessFadeLength
r.Lumen.Reflections.ScreenSpaceReconstruction	Whether to use the screen space BRDF reweighting reconstruction
r.Lumen.Reflections.ScreenSpaceReconstruction.KernelRadius	Screen space reflection filter kernel radius in pixels
r.Lumen.Reflections.ScreenSpaceReconstruction.NumSamples	Number of samples to use for the screen space BRDF reweighting reconstruction
r.Lumen.Reflections.ScreenSpaceReconstruction.RoughnessScale	Values higher than 1 allow neighbor traces to be blurred together more aggressively, but is not physically correct.
r.Lumen.Reflections.ScreenTraces	Whether to trace against the screen for reflections before falling back to other methods.
r.Lumen.Reflections.SmoothBias	Values larger than 0 apply a global material roughness bias for Lumen Reflections, where 1 is fully mirror.
r.Lumen.Reflections.SurfaceCacheFeedback	Whether to allow writing into virtual surface cache feedback buffer from reflection rays.
r.Lumen.Reflections.Temporal	Whether to use a temporal filter
r.Lumen.Reflections.Temporal.DistanceThreshold	World space distance threshold needed to discard last frame's lighting results. Lower values reduce ghosting from characters when near a wall but increase flickering artifacts.
r.Lumen.Reflections.Temporal.MaxFramesAccumulated
r.Lumen.Reflections.TraceCompaction.GroupSizeInTraceTiles	Size of the trace compaction threadgroup. Larger group = better coherency in the compacted traces. Currently only supported by WaveOps path.
r.Lumen.Reflections.TraceCompaction.WaveOps	Whether to use Wave Ops path for trace compaction.
r.Lumen.Reflections.TraceMeshSDFs
r.Lumen.Reflections.VisualizeTracingCoherency	Set to 1 to capture traces from a random wavefront and draw them on the screen. Set to 1 again to re-capture. Shaders must enable support first, see DEBUG_SUPPORT_VISUALIZE_TRACE_COHERENCY
r.Lumen.ScreenProbeGather	Whether to use the Screen Probe Final Gather
r.Lumen.ScreenProbeGather.AdaptiveProbeAllocationFraction	Fraction of uniform probes to allow for adaptive probe placement.
r.Lumen.ScreenProbeGather.AdaptiveProbeMinDownsampleFactor	Screen probes will be placed where needed down to this downsample factor of the GBuffer.
r.Lumen.ScreenProbeGather.DiffuseIntegralMethod	Spherical Harmonic = 0, Importance Sample BRDF = 1, Numerical Integral Reference = 2
r.Lumen.ScreenProbeGather.DownsampleFactor	Pixel size of the screen tile that a screen probe will be placed on.
r.Lumen.ScreenProbeGather.Filtering.WaveOps	Whether to use Wave Ops path for screen probe filtering.
r.Lumen.ScreenProbeGather.FixedJitterIndex	If zero or greater, overrides the temporal jitter index with a fixed index. Useful for debugging and inspecting sampling patterns.
r.Lumen.ScreenProbeGather.FullResolutionJitterWidth	Size of the full resolution jitter applied to Screen Probe upsampling, as a fraction of a screen tile. A width of 1 results in jittering by DownsampleFactor number of pixels.
r.Lumen.ScreenProbeGather.GatherNumMips	Number of mip maps to prepare for diffuse integration
r.Lumen.ScreenProbeGather.GatherOctahedronResolutionScale	Resolution that probe filtering and integration will happen at, as a scale of TracingOctahedronResolution
r.Lumen.ScreenProbeGather.HairStrands.ScreenTrace	Whether to trace against hair depth for hair casting shadow onto opaques.
r.Lumen.ScreenProbeGather.HairStrands.VoxelTrace	Whether to trace against hair voxel structure for hair casting shadow onto opaques.
r.Lumen.ScreenProbeGather.HardwareRayTracing	0. Software raytracing of diffuse indirect from Lumen cubemap tree.1. Enable hardware ray tracing of diffuse indirect. (Default)
r.Lumen.ScreenProbeGather.HardwareRayTracing.AvoidSelfIntersectionTraceDistance	Distance to trace with backface culling enabled, useful when the Ray Tracing geometry doesn't match the GBuffer (Nanite Proxy geometry)
r.Lumen.ScreenProbeGather.HardwareRayTracing.Default.GroupCount	Determines the active number of groups (Default = 1)
r.Lumen.ScreenProbeGather.HardwareRayTracing.Default.ThreadCount	Determines the active number of threads (Default = 32768)
r.Lumen.ScreenProbeGather.HardwareRayTracing.Indirect	Enables indirect ray tracing dispatch on compatible hardware (Default = 1)
r.Lumen.ScreenProbeGather.HardwareRayTracing.NormalBias	Bias along the shading normal, useful when the Ray Tracing geometry doesn't match the GBuffer (Nanite Proxy geometry)
r.Lumen.ScreenProbeGather.HardwareRayTracing.Retrace.FarField	Determines whether a second trace will be fired for far-field contribution (Default = 1)
r.Lumen.ScreenProbeGather.ImportanceSample	Whether to use Importance Sampling to generate probe trace directions.
r.Lumen.ScreenProbeGather.ImportanceSample.BRDFOctahedronResolution	Resolution of the BRDF PDF octahedron per probe.
r.Lumen.ScreenProbeGather.ImportanceSample.HistoryDistanceThreshold
r.Lumen.ScreenProbeGather.ImportanceSample.IncomingLighting	Whether to Importance Sample incoming lighting to generate probe trace directions. When disabled, only the BRDF will be importance sampled.
r.Lumen.ScreenProbeGather.ImportanceSample.MinPDFToTrace	Minimum normalized BRDF PDF to trace rays for. Larger values cause black corners, but reduce noise as more rays are able to be reassigned to an important direction.
r.Lumen.ScreenProbeGather.ImportanceSample.NumLevels	Number of refinement levels to use for screen probe importance sampling. Currently only supported by the serial reference path in ScreenProbeGenerateRaysCS.
r.Lumen.ScreenProbeGather.ImportanceSample.ProbeRadianceHistory	Whether to Importance Sample incoming lighting from last frame's filtered traces to generate probe trace directions. When disabled, the Radiance Cache will be used instead.
r.Lumen.ScreenProbeGather.IntegrationTileClassification	Whether to use tile classification during diffuse integration. Tile Classification splits compute dispatches by VGPRs for better occupancy, but can introduce errors if implemented incorrectly.
r.Lumen.ScreenProbeGather.IrradianceFormat	Prefilter irradiance format 0 - SH3 slower 1 - Octahedral probe. Faster, but reverts to SH3 when ScreenSpaceBentNormal.ApplyDuringIntegration is enabled
r.Lumen.ScreenProbeGather.MaxRayIntensity	Clamps the maximum ray lighting intensity (with PreExposure) to reduce fireflies.
r.Lumen.ScreenProbeGather.OctahedralSolidAngleTextureSize	Resolution of the lookup texture to compute Octahedral Solid Angle.
r.Lumen.ScreenProbeGather.RadianceCache	Whether to enable the Persistent world space Radiance Cache
r.Lumen.ScreenProbeGather.RadianceCache.ClipmapDistributionBase	Base of the Pow() that controls the size of each successive clipmap relative to the first.
r.Lumen.ScreenProbeGather.RadianceCache.ClipmapWorldExtent	World space extent of the first clipmap
r.Lumen.ScreenProbeGather.RadianceCache.GridResolution	Resolution of the probe placement grid within each clipmap
r.Lumen.ScreenProbeGather.RadianceCache.NumClipmaps	Number of radiance cache clipmaps.
r.Lumen.ScreenProbeGather.RadianceCache.NumMipmaps	Number of radiance cache mipmaps.
r.Lumen.ScreenProbeGather.RadianceCache.NumProbesToTraceBudget
r.Lumen.ScreenProbeGather.RadianceCache.ProbeAtlasResolutionInProbes	Number of probes along one dimension of the probe atlas cache texture. This controls the memory usage of the cache. Overflow currently results in incorrect rendering.
r.Lumen.ScreenProbeGather.RadianceCache.ProbeResolution	Resolution of the probe's 2d radiance layout. The number of rays traced for the probe will be ProbeResolution ^ 2
r.Lumen.ScreenProbeGather.RadianceCache.ReprojectionRadiusScale
r.Lumen.ScreenProbeGather.RadianceCache.Stats	GPU print out Radiance Cache update stats. Requires r.ShaderPrintEnable 1.
r.Lumen.ScreenProbeGather.ReferenceMode	When enabled, traces 1024 uniform rays per probe with no filtering, Importance Sampling or Radiance Caching.
r.Lumen.ScreenProbeGather.ScreenSpaceBentNormal	Whether to compute screen space directional occlusion to add high frequency occlusion (contact shadows) which Screen Probes lack due to downsampling.
r.Lumen.ScreenProbeGather.ScreenSpaceBentNormal.ApplyDuringIntegration	Whether Screen Space Bent Normal should be applied during BRDF integration, which has higher quality but is before the temporal filter so causes streaking on moving objects.
r.Lumen.ScreenProbeGather.ScreenSpaceBentNormal.SlopeCompareToleranceScale	Scales the slope threshold that screen space traces use to determine whether there was a hit.
r.Lumen.ScreenProbeGather.ScreenTraces	Whether to trace against the screen before falling back to other tracing methods.
r.Lumen.ScreenProbeGather.ScreenTraces.HZBTraversal	Whether to use HZB tracing for SSGI instead of fixed step count intersection. HZB tracing is much more accurate, in particular not missing thin features, but is about ~3x slower.
r.Lumen.ScreenProbeGather.ScreenTraces.HZBTraversal.HistoryDepthTestRelativeThickness	Distance between HZB trace hit and previous frame scene depth from which to allow hits, as a relative depth threshold.
r.Lumen.ScreenProbeGather.ScreenTraces.HZBTraversal.MaxIterations	Max iterations for HZB tracing.
r.Lumen.ScreenProbeGather.ScreenTraces.HZBTraversal.NumThicknessStepsToDetermineCertainty	Number of linear search steps to determine if a hit feature is thin and should be ignored.
r.Lumen.ScreenProbeGather.ScreenTraces.HZBTraversal.RelativeDepthThickness	Determines depth thickness of objects hit by HZB tracing, as a relative depth threshold.
r.Lumen.ScreenProbeGather.ScreenTraces.MinimumOccupancy	Minimum number of threads still tracing before aborting the trace. Can be used for scalability to abandon traces that have a disproportionate cost.
r.Lumen.ScreenProbeGather.ScreenTraces.ThicknessScaleWhenNoFallback	Larger scales effectively treat depth buffer surfaces as thicker for screen traces when there is no Distance Field present to resume the occluded ray.
r.Lumen.ScreenProbeGather.SpatialFilterHalfKernelSize	Experimental
r.Lumen.ScreenProbeGather.SpatialFilterMaxRadianceHitAngle	In Degrees. Larger angles allow more filtering but lose contact shadows.
r.Lumen.ScreenProbeGather.SpatialFilterNumPasses	Number of spatial filter passes
r.Lumen.ScreenProbeGather.SpatialFilterPositionWeightScale	Determines how far probes can be in world space while still filtering lighting
r.Lumen.ScreenProbeGather.SpatialFilterProbes	Whether to spatially filter probe traces to reduce noise.
r.Lumen.ScreenProbeGather.StochasticInterpolation	Where to interpolate screen probes stochastically (1 sample) or bilinearly (4 samples)
r.Lumen.ScreenProbeGather.Temporal	Whether to use a temporal filter
r.Lumen.ScreenProbeGather.Temporal.ClearHistoryEveryFrame	Whether to clear the history every frame for debugging
r.Lumen.ScreenProbeGather.Temporal.DebugForceTracesMoving
r.Lumen.ScreenProbeGather.Temporal.DistanceThreshold	Relative distance threshold needed to discard last frame's lighting results. Lower values reduce ghosting from characters when near a wall but increase flickering artifacts.
r.Lumen.ScreenProbeGather.Temporal.FastUpdateModeUseNeighborhoodClamp	Whether to clamp history values to the current frame's screen space neighborhood, in areas around moving objects.
r.Lumen.ScreenProbeGather.Temporal.FractionOfLightingMovingForFastUpdateMode
r.Lumen.ScreenProbeGather.Temporal.MaxFastUpdateModeAmount	Maximum amount of fast-responding temporal filter to use when traces hit a moving object. Values closer to 1 cause more noise, but also faster reaction to scene changes.
r.Lumen.ScreenProbeGather.Temporal.MaxFramesAccumulated	Lower values cause the temporal filter to propagate lighting changes faster, but also increase flickering from noise.
r.Lumen.ScreenProbeGather.Temporal.NeighborhoodClamp	Whether to use a neighborhood clamp temporal filter instead of depth rejection. Experimental.
r.Lumen.ScreenProbeGather.Temporal.NormalThreshold	Maximum angle that the history texel's normal can be from the current pixel to accept it's history lighting, in degrees.
r.Lumen.ScreenProbeGather.Temporal.RejectBasedOnNormal	Whether to reject history lighting based on their normal. Increases cost of the temporal filter but can reduce streaking especially around character feet.