--- title: "V-Ray 6" canonical: "https://documentation.chaos.com/space/VMAYA/111739032/V-Ray%206" format: markdown --- ## **V-Ray 6, update 2.2.1** > Macro (anchor) *Official release* **Date** - Nov 28, 2024 **Build 6.20.24** > Macro (ui-button) ### Modified Features --- **Chaos Licensing** - Updated the Chaos License Server to version 6.2.0 ## **V-Ray 6, update 2.2** > Macro (anchor) *Official release* **Date** - May 30, 2024 **Build 6.20.02** ### New Features --- **V-Ray** - Maya 2025 support - Allow selection of USD provider in V-Ray standalone - Added support for 0.23.11 USD for V-Ray standalone **MaterialX** - Support for MaterialX Stack - Added support for color space correction of image nodes - Added  AdobeRGB and Display P3 color space support for image node **MaterialX, V-Ray GPU** - Extended initial support for MaterialX nodes on GPU **Chaos Scatter** - Added support for Altitude - Added support for Camera Clipping - Added support for Planar mapping **Chaos Vantage** - Render Animation with Chaos Vantage - Added Vantage Live-Link Settings - Added Cancel Vantage Live-Link option **VRayEnvironmentFog** - Add Phase Function to Environment Fog **USD** - Added support for crease weights ### Modified Features --- **MaterialX** - Add support for procedural textures - Add support for colorcorrect and randomcolor nodes - Allow negative colors for all textures in MaterialX - Add closest filtertype support for image node - Add support for Pivot and Scale in place2d node - Add fileprefix attribute support **VRayLightMeter** - Add MEL command for average Total value ### Bug Fixes --- **V-Ray** - Fixed low Dynamic memory limit in old scenes - Fixed IPR crash when adding lights to scenes with specific Cosmos assets and VRayLightMix **V-Ray GPU** - Fixed matte properties not working on some V-Ray materials - Fixed one-sided geometry not rendering - Fixed disabling Visibility Options not working **Chaos Vantage** - Fixed a freeze when Vantage Live Link cannot find a suitable GPU device **MaterialX** - Fixed SSS scale - Use degrees instead of radians for the place2d rotation values - Fixed rendering of Academy software materials - Wrong gamma applied to MaterialX image node **USD** - Retain material connection when duplicating geometry from USD stage to Maya Data **VRayHairNext** - Fixed artefacts and slowdowns in some scenes with VRayHairNext **VRayScene** - Fixed IPR crash with proxy inside a .vrscene loaded in Geometry mode in Maya **VRayTriplanar** - Fixed Rotation Texture in VRayTriplanar not exporting connected nodes ## **V-Ray 6, update 2.1** > Macro (anchor) * Official release* **Date** - Mar 27, 2024 **Build 6.20.01** ### New features --- **USD** - Added support for VRaySubdivisions as geometry attributes; - Added support for custom camera plugin ### Modified features --- **USD** - Added support for MayaUSD 0.27.0 for Maya 2024 - Reworked displacement and subdivision export to USD **MaterialX** - Add support for textures with alpha ### Bug fixes --- **USD** - Fixed "Export Materials to USD" tool exporting empty shading groups - Fixed incorrect UV mapping when exporting materials to USD - Fixed Maya failing to render USD materials and proxy on macOS - Fixed default file asset resolution not working in certain cases - Fixed resolving asset tags in USD in Maya 2022 and Maya 2023 - Fixed export of Subdivision and Displacement when "Merge Transform and Shape Nodes" is enabled - Fixed crash with USD Export All if VFB is not initialized - Fixed crash when material in USD stage is deleted while IPR is running - Fixed export of animation settings - Fixed export of initialShadingGroup when exporting animation - Fixed discrepancy between rendering V-Ray subdivisions in Standalone and in Maya **MaterialX** - Fixed crash with MaterialX in Standalone on Linux **V-Ray** - Fixed crash when connecting texture to non-texturable VRayColorCorrection attribute **Volume Grid, Environment Fog** - Incorrect shading of backfacing geometry in scenes with Phoenix Simulator, V-Ray Volume Grid or Environment Fog ## **V-Ray 6, update 2** > Macro (anchor) * Official release* **Date** - Feb 15, 2024 **Build 6.20.00** ### New features --- **MaterialX** - Support for rendering MaterialX shaders in USD stages - New VRayMaterialX node for loading mtlx files - Tool for exporting VRayMaterials to MaterialX - Support for rendering V-Ray materials exported to mtlx **LookdevX** - Initial support for LookdevX - Support for V-Ray materials and nodes in LookdevX - IPR support for edits in LookdevX **USD** - New Hydra-compatible USD implementation - Initial IPR support for USD - USD support in Chaos Cloud - Support for USD in V-Ray Standalone **Chaos Scatter** - Support for Areas Include and Exclude lists - Support for Edge Trimming - Support for scattering Lights - Support for instancing entire groups - Tool for converting Chaos Scatter instances to Maya geometry - Option for Axis for Transformation Step and Map **Shadow Selects** - Add Direct Diffuse and Direct Specular shadow select render elements - Add a Matte objects only option for Direct diffuse shadows **VRayDecal** - VRayDecal cylindrical projection with viewport representation **V-Ray** - Introduce Adaptivity clamp to avoid high sampling in overexposed regions of the image **V-Ray GPU** - Use System Memory mode for texture loading - Direct Diffuse and Direct Specular shadow select render elements support - Support for VRayEnmesh - Support for Image planes - Add support for Raw render elements in V-Ray GPU ### Modified Features --- **USD** - Export to USD has been updated to be Hydra-compatible - Exporting UV sets to USD will now preserve set names - Support for MayaUSD 0.26.0 for Maya 2024 - Droped support for MayaUSD versions lower than 0.16 - Optimise USD export file size when one texture node is mapped to multiple input slots - Improved geometry compilation for instanced USD **VRayProxy, Viewport 2.0** - Improved memory consumption of a VRayProxy for preview  **VRayProxy** - Improved memory consumption for smooth normals calculation during alembic load - Ability to assign material directly to the proxy without changing all material overrides one by one **V-Ray** - Added VRayNormalMap for more control over bump map parameters - Improved geometry compilation speed for subdivision surface objects on high core count machines - Rename "Hidden Lights" option to "Export hidden lights" in render settings - Rename VRayLightSelect render element Material label to "Emissive material" - Fixed cases of incorrect character encoding in installer console output; - Redesigned the V-Ray Textures, Volumetrics and Utility nodes icons - Remove the Prepass Samples attribute in render settings - Always export scene_name for cameras in vrscene - Objects with attached volumetrics are not rendered correctly when the camera is inside them - Improved bump sampling method that eliminates artifacts with procedural textures **Chaos Scatter** - New viewport visualization enhancements - Viewport visualization of transform randomization maps - Viewport visualization of target density maps - Move the Instance Count Limit to System **VRayUVWRandomize** - Added option to flip UVs for randomization **Material importer** - Added native import for VRayCarPaint2 **Path Guiding** - Updated path guiding support - Progressive path guiding training during light cache build; - Added support for scanned materials **VFB** - Added button to select the Denoiser render element in Outliner - Add a link in the VFB History panel for enabling it **V-Ray Standalone** - Print error and exit when a non-existing camera name is passed **V-Ray GPU** - Cache bitmaps between frames when rendering animation - Added support for rendering Particle colors based on input channels - Fixed slow aborting of rendering while uploading bitmaps - Updated the minimum driver version for CUDA 12 and added a warning print **VRaySun** - Added Affect atmopherics and Atmopheric Contribution options **Light Select** - Add support for LPE light labels **VRayRectLight** - Add a directional strength parameter **VRayTriplanar** - Added negative axis projection **VRayMtl** - VRayMtl SSS is written in Refraction render element ### Bug Fixes --- **USD** - Export Dome lights textures with arbitrary node graphs - SettingsVFB not exported to USD - IPR support for animation **VRayVolumeGrid** - Fixed aur caches simulated on Windows randomly not rendering correctly with Linux distributed rendering - Fixed random 1KB cache export on Linux **V-Ray** - Certain channels should be always 32-bit - Specific frames rendering black in V-Ray Standalone - Fixed slow progress printing in some cases - BitmapBuffer reported black as invalid color - Maya 2024.2 crash with VRayGeoSun animated - Crash when changing Diffuse Color option in Hypershade during swatch update - Shadow Catcher is not affected by Camera's Image Plane - VRay Bercon Noise value parameters cannot be animated - Flake scale in VRayStochasticFlakesMtl loses texture connections - Particle Shader does not get updated with V-Ray IPR GPU in Maya when changing the current timeline frame **Chaos Scatter, VRayProxy** - Scatter not showing in the viewport when using alembic proxy **Material Importer** - VRayDirt radius multiplier wrong import **VFB** - Progress tasks don't get cleared in the VFB progress bar after finishing **VRayMeshLight** - Fixed "overbright or invalid color" warnings with light meshes **VRayMtl** - Changing the Textured channel option causes a "qualityMenu not found" mel - Some connections to materials are not exported **V-Ray GPU** - IPR is rendering slower than production rendering with the Progressive image sampler - "Abort rendering on missing assets" does not work correctly for UDIM on GPU - Crash when scenes containing Image sequences and V-Ray Sky are rendered with CUDA and then RTX engine - Select object and Pick object material functionality in VFB is broken with V-Ray GPU IPR - Environment Background multiplier does not affect the Sky Clouds - GPU rendering performance is slower when some of the VRam is occupied - Render freeze when rendering animated object with RTX, motion blur and V-Ray Denoiser - VRaySphere is not rendered with RTX - Rendering stucks when using the Bucket image sampler and Textured render mask - VRayProxy with assigned Multi/Sub-Object material in V-Ray GPU has incorrect shading with material override - rhel8: V-Ray denoiser OpenCL sporadic initialization failure - Parsing version 470.161.03 failed - VRayClipper does not have correct material IDs when rendering with V-Ray GPU - Bump mapping differs comparing small objects between V-Ray and V-Ray GPU - Bump mapping doesn't work correctly on a plane - MultiMatteID is not propagated through nested materials **Viewport 2.0, VRayBlendMtl, VRayMtlWrapper, VRaySwitchMtl** - The viewport color attribute does not work in Blend and Switch materials **VRayEnvironmentFog** - Environment Fog is missing from Light Select AOV if the fog is textured **VRayProxy** - Crash to desktop with specific alembic in V-Ray Proxy **VRayRectLight** - VRayLightRect viewport preview is inverted when a texture is used **VRayProxy, Cryptomatte** - Cryptomatte's VRay user attribute ID type does not work with alembics in VRayProxy **VRaySphereFade** - Wrong VRaySphereFade in IPR with Dome Spherical ON **Viewport 2.0** - Unnecessary shader fragment debug info written to a file - Light-caused edge artefacts in the viewport preview of a spherical mesh with VRayMtl ### **Known Issues and Limitations** --- - Difference between IPR and Production rendering with distance text/bercon noise in Chaos Scatter - Disclaimer: Differences in export and render to USD - the old behaviour can be temporarily re-enabled with VRAY_USD_HYDRA_TRANSLATOR=0 environment variable - IPR crash when switching between materials in VRayMaterialX ## **V-Ray 6, update 1.1** > Macro (anchor) *Official release* **Date **- Sep 28, 2023 **Build 6.10.01** ### New features --- **Chaos Cosmos** - "Check for missing Cosmos assets" tool to automatically download and resolve missing assets ### Modified features --- **V-Ray** - Updated tooltips in the GI tab of the render settings ### Bug fixes --- **V-Ray** - Fixed objects having wrong transformations at random - Fixed No lights in the scene warning appearing incorrectly - Fixed an issue where OCIO color spaces are not applied to textures **VFB** - Fixed .cube LUT files not saved from the VFB **VRayAlSurface** - Fixed incorrect LPE contribution for coat and sheen with AlSurface **VRayProxy** - Fixed Debug shading - Isolate Selected not working with V-Ray Proxy - Fixed wrong bounding box for V-Ray Proxy in Preview mode - Fixed missing velocity from V-Ray Proxy with V-Ray subdivision **Chaos Cloud** - Fixed failing Chaos Cloud submit when the option to export vrscene to separate files is enabled **Chaos Cosmos** - Fixed wrong material assignment when drag-and-dropping V-Ray Decal assets from Chaos Cosmos - Fixed an issue with previewing textures for Chaos Cosmos assets in Maya 2024 **Chaos Scatter** - Fixed a crash with Chaos Scatter when density is mapped with VRayDirt - Fixed a crash with Chaos Scatter in V-Ray Standalone on Linux CentOS 7 - Fixed an issue that prevented Chaos Scatter from sometimes loading on Linux **USD** - Fixed a crash when a user attribute with no value is exported to USD > Macro (anchor) ## **V-Ray 6, update 1** *Official release* **Date **– May 18, 2023 **Build 6.10.00** ### New Features --- **V-Ray** - Added support for Chaos Scatter - Added support for Maya 2024 - Added support for Maya 2024 macOS universal builds for Apple Silicon and x86 - Implemented a Bump To Glossiness model - Added light attenuation controls for custom decay - Added support for emissive materials in VRayLightSelect and VRayLightMix - Implemented Intel Open Path Guiding rendering with Light Cache (experimental) **Profiler** - Added system profiler mode for tracking scene export, geometry compilation, bitmap loading and other render and pre-render events **V-Ray GPU** - Implemented Compressed Textures - Added support for Clipper mesh mode - Initial support for RAW render elements in V-Ray GPU **USD** - Added support for MayaUSD 0.22 and 0.23 - Added support for render settings in USD - Added support for VRayProxy in USD - Added support for ExtraTex render element in USD - Added support for V-Ray Object Properties in USD - Added support for Dome Camera in USD **VFB** - Added masking support for the Lens Effects, Denoiser and Sharpen/Blur layers in the VFB - Light Mix render element can be added directly from the VFB layers tab - Denoiser render element can be added directly from the VFB layers tab **Chaos Cosmos** - Added support for VRayEnmesh assets from Chaos Cosmos - Added support for VRayDecal assets from Chaos Cosmos **Denoiser** - Added NVIDIA AI upscaling denoiser ### Modified Features --- **V-Ray** - Faster rendering and geometry compilation of hair - Faster mesh geometry compilation - Improved progressive caustics convergence - Added support for multiple VRayEnvironmentFog nodes as Environment Volumes - Аdded Affect Alpha option for VRayAerialPerspective and VRayEnvironmentFog - Added an option to delete the resumable file when resumed rendering completes successfully - Scripts for starting vrayserver from portable installation now auto-discover paths - Dropped support for Maya 2019 **VRayDecal** - Added surface bump blend options **VRayMtl** - Animatable thickness parameters for thin film in VRayMtl - Gray out IOR control in the UI when Metalness is 1.0 **V-Ray GPU, VRayMtl** - Added support for the Uniform Illumination mode of VRayMtl translucency **VRaySun** - Added new sky cloud options for clouds density, seed and contrails - Changed sky model default to "PRG Clear Sky" for new scenes **VRayProxy** - Faster loading time with Alembic - Ability to load a separate viewport preview file for the new V-Ray Proxy node **Profiler** - Generate Profiler reports as browser-agnostic HTML - Added an option to control the trace depth when profiling shading - Profiler now writes a fixed number of files and overwrites the oldest ones for easier file management - Added a button for showing the last profile **LightMix ** - LightMix now works immediately in IPR even during Light Cache build and progressive undersampling **VRayLightDome** - Textured Finite Dome viewport preview - Added soft min and max limits to Dome Tex A **Installer** - Installer no longer modifies Maya MEL scripts ### Bug Fixes --- **V-Ray** - Execute Pre and Post Render MEL scripts in Viewport IPR. This allows rendering 3rd party plugins like Yeti in Viewport IPR. - Fixed artifacts with Adaptive Lights on Linux - Fixed EXR with just a red channel not rendering correctly - Fixed error "Extra attributes file not found" - Fixed renderable curves not working with Render Layers - Fixed a crash with VRayBerconNoise driving density of volume and displacement with UVW Explicit 2D - Fixed region render in IPR restarts the sampling - Fixed wrong Material Viewer render with ACEScg - Fixed Light Cache not working correctly with render regions in IPR - Fixed wrong source visibility when creating VRayEnmesh while IPR running - Fixed Enmesh Force Invisible Source not working in IPR with a moving source - Fixed animated V-Ray Perfect Sphere not animated in the viewport **Chaos Cosmos** - Fixed a crash on Linux and macOS when importing materials - Fixed certain assets with multiple materials not importing correctly **V-Ray GPU** - Fixed crash when changing the renderer to V-Ray GPU in the Hypershade Material Viewer - Fixed memory leak with textures when rendering animation - Fixed include option in exclude/include lists for V-Ray Clipper in mesh mode not working - Fixed incorrect render with mapped VRayCarpaintMtl with zero Flake density and Compressed textures - Fixed stuck render when specific nodes are used for 2D displacement - Fixed Cryptomatte render element not working for objects behind glass - Fixed "CUDA error 700" when toggling the Volumetric Environment in GPU IPR - Fixed crash with some VRayScannedMtl materials - Fixed a crash and artifacts with NVlink when a V-Ray light is at 90 degrees to a matte surface - Fixed wrong render of dynamic geometry with VRayMultiSubTex in Random By Poly Shell mode - Fixed incorrect clipping of V-Ray lights with OOC when VRayClipper is set to Use Object Material - Fixed a freeze with GPU Light Cache when scrubbing the timeline in IPR with a specific scene - Fixed Reflect/Refract Affect All Channels not working with VRayBackground RE - Fixed a crash in IPR with Brute Force GI and refractive glossy VRayMtl when changing translucency modes - Fixed render difference with VRayMultiSubTex Random By Poly Shell and non-default motion blur geometry samples - Fixed missing UVs with motion blur and viewport subdivision - Fixed a crash when GPU rendering is aborted early - Fixed deforming dynamic geometry not updared in IPR - Fixed broken Cryptomatte masks for lights in V-Ray GPU **USD** - Fixed missing VRayPhysical camera extra attributes for invisible cameras **VRayLightDome** - Fixed viewport preview for textures going through VRayColorCorrection **VRayDecal** - Fixed VRayDecal missing in reflections and refractions **VRayDecal, VRayScene** - Fixed missing VRayDecal viewport gizmo when loaded from VRayScene nodes **VRayScene** - Fixed VRayScene objects with frozen transformations are rendered as bounding boxes **VRayClipper** - Fixed missing viewport preview of VRayClipper when loaded from VRayScene nodes **VRayDirt** - Fixed VRayDirt "Ignore Self Occlusion" not working **VRayProxy** - Fixed wrong viewport visibility when proxies are part of render setup collections in Maya 2023.2 **VRayStochasticFlakesMtl** - Fixes wrong render when the reflection glossiness is 1 **VRayVolumeGrid** - Fixed node name not incremented for duplicated VRayVolumeGrid nodes **XGen** - Fixed excessive memory used for exporting XGen groomable splines - Fixed temporal instability with VRayHairNextMtl Glint and XGen hair **LPE** - Fixed the Light Path Expressions presets for reflection, refraction and SSS **Installer** - Fixed installer not uninstalling environment variables on macOS - Stopped creating Maya.env files on macOS which duplicates envrionment variable storage ** **> Macro (anchor) ** ** ** ** ## **V-Ray 6, hotfix 1** *Official release* **Date** - Dec 07, 2022 **Build 6.00.03** ### New features --- **Profiler** - Added support for profiler full mode for full ray path profiling; **Material importer** - Added VRayMultiSubTex support in importer; **USD** - Added support for MayaUSD 0.20; - Added support for V-Ray user attributes in USD; ### Modified features --- **V-Ray** - CPU IPR should read the mtl_maxdepth settings; - Profiler performance improvements; - Added new version notification in VFB; **Viewport 2.0** - Higher viewport resolution of VRayDomeLight when texture goes through intermediate nodes; - VRayDomeLight viewport resolution will be affected by viewport quality presets in the V-Ray settings; **V-Ray GPU** - GPU support for Affect All Channels; **VRayProxy** - Improved Alembic render times; ### Bug fixes --- **USD** - Fixed crash when rendering Coat Render Elements in USD scene; - Fixed crash when rendering USD files with missing varname input; **V-Ray GPU** - Fixed slowdown in specific scene from V-Ray Next; - Mask render elements do not appear through refraction even when the refract_affect_alpha = 2 for the material; - Sun disk from VRaySky environment map is rotated with VRayLight dome's texture; - Incorrect Diffuse filter render element when All channels option is selected under Affect Channels.; **V-Ray** - Fixed low CPU utilization with Intel Alder Lake CPUs on Windows 11; - Fixed crash when changing Engine on denoiser; - Decreasing the Start Width for renderable curves is not detected in IPR; - Missing Maya native 3d procedural textures when selecting a texture for the ExtraTex RE; - Changing Input texture correction does not grey out the Texture input gamma for Linear or RGB; - Inconsistent behavior of Texture input gamma option with applied texture; **Installer** - Fixed module file for MacOS -unpackInstall installation; - Wrong installation layout after unpacking for portable install on macOS; - Fixed VRAY_OSL_PATH not being set by installer; **USD** - USD Camera read with incorrect transform; - Stray UsdUVTexture when exporting materials to USD; - Wrong value of Angle of View for Physical camera in USD scenes; - Invalid handling of instanced non geometry primitives; **VRayProxy** - ** Fixed crash with alembic when hair width multiplier is not 1;** - **Crash when importing proxy with full geometry mode;** - **Fixed slow geometry compilation with hundreds of proxy files referencing the same vrmesh file;** **VFB** - Fixed light mix light selection not working in IPR; - Show "Save RGB primaries conversion to image" only for sRGB Display Correction; - VFB color corrections in unsaved scene not baked in batch rendering output; **V-Ray IPR** - IPR doesn't detect changes to texture extra attributes; **V-Ray, USD, VRayScene** - Disable render elements from mayaUsdProxyShape; **V-Ray GPU/VRayFur** - V-Ray GPU not finding the correct UV channel; **VRayMeshLight** - VRayDecal shouldn't project on objects with vrayLightMeshProperties or VRayLightMtl; **VRayProxy/Viewport 2.0** - Fixed high VRAM usage in the viewport with textured view disabled; **VRayScene** - V-Ray Decal Inconsistent Behavior when imported as a vrscene; **VRayToon** - Artifacts with Toon and ToonMtl; **VRayToonMtl** - Incorrect VRayToonMtl shadow blend; - VRayMtl2Sided's Translucency does not work with VRayToonMtls; **USD/VRayTriplanar** - Wrong render of USD file with triplanar texture; > Macro (anchor) ## **V-Ray 6** *Official Release* **Date **- Aug 31, 2022 **Build 6.00.02** ### **New features** --- **V-Ray** - Added VRayEnmesh for efficient procedural geometry tiling - Added NoiseLevel render element - Added RenderTime render element - Add Metalness render element - Implement optimized auto-bump mode for displaced meshes **V-Ray Sun** - Clouds for the V-Ray sky **V-Ray Profiler** - Added V-Ray Profiler v1 for profiling materials, layered materials and heavy textures - Added -profilerMode option to profile scenes with V-Ray standalone **VRayLightDome** - Finite radius for the dome light with option for ground projection **VRayMtl** - New SSS translucency illumination mode in VRayMtl - Added a Thin Film layer in VRayMtl with easy thickness controls - Energy compensation option for the GTR BRDF **VRayDecal** - VRayDecal displacement support **VFB** - Added the Chaos Cloud Collaboration service **V-Ray, V-Ray GPU** - Added V-Ray Perfect Sphere **VRayMultiSubTex** - Ability to combine randomization options in VRayMultiSubTex - Added "by user ID" random option in VRayMultiSubTex **V-Ray IPR** - Light cache support option for IPR **V-Ray GPU** - New GPU device selection tool **USD** - Support for VDB shaders in USD - Add support for MayaUSD versions up to 0.19 **Chaos Cloud** - Non-blocking Cloud export in the background (Windows only) **VRayEnvironmentFog** - Faster light shading in fog - Faster textured fog with probabilistic shading option **VRayVolumeGrid** - `Added support for light depth sampling in the volume grid` - `Phase Function control in Ray-Traced Scattering mode for the Smoke Color allowing to render realistic clouds with V-Ray CPU` - `Velocity and Normals render elements in Volumetric mode with V-Ray 6 CPU` - `Cryptomatte and Multimatte render elements in Volumetric mode with V-Ray 6 CPU` - ` New "Volume Motion Blur" option allowing to choose between Ray-traced and Grid-based methods - the Grid-based method creates more visible streaks for fast moving fluids` ### **Modified Features** --- **Installer** - -unpackInstall option to produce portable installation instead of separate zipped install - Added all V-Ray for Maya environment variables to the module file for easier portable install deployment - Changed default installation paths to be outside the Maya folder, matching portable install folder structure - Use online changelog - Embeded the Chaos Unified Login - Stop downloading the material library from the installation - `Use dedicated icon for VRayProxy in the Outliner` **Chaos Cosmos** - Added support for Cosmos procedural materials and Cosmos-based material library **VRayMtl, Viewport 2.0** - Viewport quality presets for VRayMtl - Add support for the V-Ray 6 VRayMtl features in the Viewport 2.0 shader - Support for Normal and bump maps with V-Ray materials in Viewport 2.0 **V-Ray GPU** - Added a new Samples Limit quality control that replaces the min and max subdivs for GPU - Auto-upgrade old scenes to the new Samples Limit control - Synchronize CPU bucket settings with the new samples limit GPU settings - New Device Selection options - Moved the RTX engine selection to the new Device Selection options - Add denoising options and per-device low thread priority in the GPU device select - Exposed the Global Material Overrides for V-Ray GPU - Improved the Trace Depth workflow - Support for "Affected by" in VRayDirt - Implement auto bump mapping for smoothed and displaced meshes - Autovoxelize dynamic geometry in V-Ray GPU **V-Ray** - Optimize memory consumption by not subdividing objects that are far away from the camera - Redesigned the V-Ray Shelf and Material icons - Added a Shadow Catcher functionality to the V-Ray shelf - Added a search filter in the list of available render elements - Added an option to always write the frame number to the output file even for still images - Allow vfbControl MEL command in batch mode - Ability to prevent proxy import when drag-and-dropping in Maya through VRAY_DISABLE_DRAG_DROP_FILEEXT envvar - Use float controls for the explicit displacement bounds values - Added a C++ API for exporting simple parameters for third party translators - The VRAY_FOR_MAYA_SHADERS environment variable can now be used by third-party devs to point to additional extra attribute txt files - Add fit aspect ratio to material/bitmap functionality for VRayDecal **USD** - Added support for dynamic USD plugins - Improved USD material importer UI - Export VRayMtl as V-Ray material and USD Preview Surface - Improve error handling and add help to the vrayExportUsdMaterials command - Assume -chaser "vray" flag when using mayaUSDImport command **VRayMtl** - Added a Soap Bubble material preset - Hide the double-sided option in VRayMtl **Material Importer** - Add VRayMultiSubTex support in importer - Add native support for MtlGLSL in importer **VFB** - Added a "Show in folder" option to the VFB History context menu - Added functionality to select lights in LightMix - Better visibility of the A|B line in the VFB - Add menu items for enabling/disabling history and layers - Mark the scene dirty when making changes to layer compositing in VFB2 **LightMix** - Added options to include the Rest channel when saving to file and to Denoise the Light Mix **Denoiser** - Expose temporal mode option for NVIDIA denoiser **V-Ray ExtraTex** - Added a custom background color option in VRayExtraTex render element **V-Ray IPR** - IPR should stop sampling after reaching the noise threshold **VRayEnvironmentFog** - Аdded an Affect Alpha option for VRayEnvironmentFog **VRayMtl, VRayBumpMtl** - Hide Local space bump map mode for BRDFBump and BRDFVRayMtl **VRayLightDome** - Restored the Ray Distance options for the Dome light **VRayTriplanar** - Added VRayTriplanar option to use displaced surfaces **VRayOSL** - Support OSL camera shaders **ChaosCloud** - Allow direct cloud submit with no project selected **VRayDecal** - Animatable VRayDecal parameters **VRayProxy** - Correctly apply proxy material overrides in the viewport - Limit number of faces per voxel to a sensible number **XGen** - Enable parallel XGen export **Viewport IPR** - Rename Viewport HUD label from VRayRT to VRay IPR **VRayVolumeGrid** - Sped up rendering of grid volumes with up to 25% when Fully Visible Fire or Volume Light Cache is used - VRayVolumeGrid: Sped up rendering of grid volumes with up to 10% when the RGB channel was used ### **Bug Fixes** --- **V-Ray** - Fixed a crash on macOS Monterey caused by exceeding the OS max file handle limit - Fixed old scenes randomly using OCIO Display correction when rendered in batch - Wrong viewport preview for TX textures from Cosmos on macOS - Fixed memory tracking results discrepancy for "Texman" and "Tiled bitmap" - Wrong font on installer on MacOS - VRayTexOCIO Maya node crashes when used with Maya software renderer - VFB2 OCIO display corrections not synced with Maya in batch - Reflections computed in fully diffuse VRayMtl materials - Time reported by the progress for "Compiling geometry" is incorrect in Standalone - Memory leak in TexLut - Memory leak when saving multichannel/multipart OpenEXR files - TexLut fails to read file on Linux when the path is specified with backslashes - BitmapBuffer: tag support - VFB2 OCIO display correction not found with Maya batch on Linux - Wrong vrscene lights export when combined with "Separate files" option - Print a message for unsupported Chaos Cosmos Browser for Maya 2019 on both Linux and macOS - Ray derivatives are not computed for perfect refractions - Incorrect reflection on objects with motion blur and vray subdivisions - Recalculating bloom/glare lens effects produces artefacts on Linux - Error when selecting "Lens File" Distortion type of V-Ray Physical camera in IPR - Standalone installation cropped UI on HighDPI MacOS - Standalone installation cannot start a distributed rendering server on macOS - Log typo in Estimated time remaining line **USD** - Fixed endless warnings for USD export material with UV linking - Importing V-Ray materials via mayaUSDImport does not work with MayaUSD 0.16 - Invalid handling of instanced non geometry primitives - Show the warning for unsupported USD versions during render - Physical camera from USD scenes are imported with Depth of Field enabled - Mismatch with displacement in Houdini - Correctly export VRayMtl bump type as integer USD attribute - Importing USD scenes with usdPreviewSurface material is rendering wrong - Crash when rendering VRayMtlGLSL in USD scene with GPU - USD scenes with textures are imported black in Viewport - Crash when importing USD scenes with the -shadingMode flag and USD 0.15 - USD scenes with particles are imported wrong in Maya Viewport - Locked camera parameters when imported from USD - Crash when importing specific USD scene with bitmap - Crash when importing USD scene with VRayPhysicalCamera through MEL command - Transform mismatch with Skel USD file - Unsupported shader parameters in USD - Fixed USD with VDB in IPR crashing on transform **V-Ray, VRayTriplanar** - Wrong Normals when object has Triplanar mapped displacement and is a Texture Reference Object **V-Ray GPU** - Clipped light geometry when 'Clip lights geometry' option is disabled and non-light geometry is in front of lights - Wrong VRayClipper material on clipped VRayLight objects when set to Use object material - VRayPhysicalCamera: Rendering on GPU with Depth of Field prints errors in the Log Window **XGen** - Fixed XGen button label on high-DPI displays **Material Importer** - Nodes connected to Thin Film attributes don't get imported in Maya **USD, Material Importer** - Specific Skel USD scene is not rendered **VFB** - The persistent VFB setting to resize on resolution change does not persist - The VFB2 test resolution button isn't reflecting the current resolution if it's enabled when re-opening a scene - The VFB history option to copy the scene path also copies the project path **V-Ray GPU** - Fixed excessive memory usage and low performance with GPU Light Cache - Crash with Physical camera's position constraint - Crash when rendering specific alembic particles file - Some threads never finish with low_gpu_thread_priority=1 - VRayMtl with translucency is not rendered properly after resuming a render using RTX mode of V-Ray GPU and Light cache - Projections using Spherical camera are not rendered correctly with V-Ray GPU - Instanced textured VRayLights don't share loaded textures - Difference in HairNextMtl on surface geometry between V-Ray and V-Ray GPU - Crash with GPU Light cache subdivisions set to 2000 and sample size >0.1 - Scene with Light Cache crashes if run in parallel on Linux - Render time difference between V-Ray versions - Wrong render of VRayMultiSubTex on geometry with motion blur - Incorrect render with VRayEdgesTex on subdivided geometry - Out of core related crashes in V-Ray GPU - Crash with texture baking and geometry with displacement - Wrong fog color alpha results when refraction set to affect all channels - The alpha of a transparent VRayMaterial is not working correctly - Different alpha compared to the CPU and older V-Ray GPU versions - VrayLayeredTex not working with more than 6 inputs on GPU; **VRayProxy** - Crash when importing specific alembic with particles - Wrong UV linking with multiple UV sets in VRayProxy - Textures are not shown in the viewport on some Cosmos assets - Proxy2 frame transformations not reflected in Viewport 2.0 in Maya 2023 **Installer** - AppSDK shipped in V-Ray for Maya installation doesn't work on Linux and macOS **Memory Tracking** - Illegible symbols in memory tracking for Dynamic geometry on Linux **VRayStochasticFlakesMtl** - Differences between VRayMtl and stochastic flakes with reflection glossiness=1 - Outline on objects with VRay Stochastic Flakes Mtl **VRayHairNextMtl** - Missing Color and Intensity in UI for lights created from PluginNode **VRayMtl, V-Ray GPU** - Artifacts on specific scene with VRayMtl SSS translucency - Wrong render with SSS2 **VRayProxy, Cryptomatte** - Cryptomatte's VRay user attribute ID type does not work with alembics in VRayProxy **VRayProxy, V-Ray GPU** - The 'Per instance materials' options for alembics does not work properly in GPU **VRayToonMtl** - Diffuse artifacts with anisotropic reflections and sheen or diffuse roughness **Viewport 2.0, V-Ray GPU** - Rendering artifacts with anisotropy reflections **Viewport 2.0, VRayPluginNodeMtl** - Some Maya materials are imported black in Viewport **vdenoise** - Standalone Vdenoise tool doesn't work with multi-part .exr files