--- title: "V-Ray 5" canonical: "https://documentation.chaos.com/space/VRAYHOUDINI/113282047/V-Ray%205" format: markdown --- ## **Build 5.20.02** *Official Release* Date - Dec. 9, 2021   > Macro (ui-button)   ### **Solaris** --- **V-Ray** - Added support for the Referenced Shader VOP - Added support for live (in-memory) volumes - Added "creaseweight" attribute support for V-Ray Subdivision - Added support for USD Prim Vars for shading (e.g. "Cd") - Added support for string USD Prim Vars as part of the Image File VOP File Path (e.g. $HIP/) - Added Distance Texture support with regex USD primitive selection - Added native V-Ray AOVs support (i.e. component level outputs) - Added Sampler AOV support (i.e. ray level outputs - Added Cryptomatte AOV support - Added MultiMatte AOV support - Added Light Path Expression AOV support - Added Extra Texture (i.e. arbitrary Prim Var) AOV support - Added "V-Ray Standard Render Vars" LOP - Added V-Ray Mesh Light parameters to the Light LOP - Added support for instancing V-Ray Mesh Lights - Added a "V-Ray Proxy" LOP node for loading VRMesh files - Added support for the Round Edges material - Added support for the FallOff texture - Added Distributed Rendering options in the Render Settings LOP - Added Linux support for the V-Ray Hydra delegate - Added Mac OSX support for the V-Ray Hydra delegate - Added support for rest attributes export ("rest", "rnml") - Added support for instancing of Volume USD primitives - Cryptomatte AOV is now saved to disk when rendering through Husk - Fixed black/empty viewport when switching between available delegates - Added support for additional Render Var data types (half3, half4, etc) - Updated Multi ID Material/Texture to match V-Ray for Maya - Fixed Displacement update issues - Fixed Dome Light texture not matching Solaris viewport - Fixed Dome Light texture rotation not working - Fixed crowd import causes a crash - Fixed material update issues   ### **New features** --- **V-Ray** - Added support for Houdini 19 - Added the V-Ray Decal SOP - Added support for isolating Convex and Concave values in the Curvature texture - Added a "V-Ray Aur Convert" ROP for converting VDBs to V-Ray's native AUR volume format - Added support for any arbitrary string attribute in an alembic file for use with the Pattern ID VOP - Alembic face sets (groups) can now be queried with the "set:" syntax for use with the Multi ID Material/Texture - Added the "Grouped Lights" option to the Light Mix render element - Added additional material override options under the Renderer ROP's Options tab - Added support for loaded image file frame overrides on the Image File VOP allowing looping of texture sequences - Added support for dynamically reloading the OCIO environment configuration in the "_vfh_ipr" python module - Added support for time-dependent expressions for the Image Output path on the Renderer ROP - Added GPU support for rest attributes - Added the MakeTX utility in the V-Ray for Houdini builds under the appsdk/bin folder - Added support for Camera and Physical Camera properties on HDAs with a Camera node as the representative node - Added support for exporting multiple cameras to the VRScene - Added VRScene Material Import support for remapping the UV Channel Index for scenes coming from 3ds Max - Added an option to remove the VRIMG file after the rendering has completed - Added support for the Displacement VOP in the Referenced Shader VOP - Added VRScene Material Import for custom plugins - Added support for driving the Image Sampler's Min/Max Subdivisions parameter with an expression, when exporting to per-frame VRScene files - Added support for the "N" attribute for particles when rendered as circles - Added the "Streaks", "Thin Walled" and "Ignore Bump" options to the V-Ray Dirt texture - Added the "Composite" texture for VRScene Material Import from Maya - Added support for rendering Alembic particles using the Phoenix Foam Shader - Added the "Auto" mode for the selected Transfer Function of textures on the Image File VOP - Added the "VFH_RGB_COLOR_SPACE" environment variable for selecting the RGB Color Space option on the Renderer ROP - Added support for "looks" in the OCIO configuration file for the new VFB   ### **Modified features** --- **V-Ray** - Updated the Image File "Transfer Function" and "RGB Primaries" parameters - The Volume Grid Cache SOP can now only be used to load Chaos Phoenix (.aur) cache files - Pressing the render (teapot) icon on the VFB or the "Render" button on the V-Ray shelf will only start a single frame render, regardless of ROP "Frame Range" settings - Updated the installer to use the "houdini_version" and "houdini_python" keywords in the JSON package file to simplify deployment - The V-Ray GUI license is now released when no V-Ray nodes are present in the scene - The Chaos Cloud client app is now always installed when using the default/quick installation process - Probabilistic Volumetrics are now enabled by default on the Renderer ROP - Updated the V-Ray logo in all relevant title bars inside the V-Ray Installer and the Houdini GUI - Removed the "Global Settings" entry in the V-Ray menu - Reduced the font size for the Installer - Light Mix AOV elements are now sorted by name - Updated the V-Ray TOP's Output Path parameter value for the ROP Fetch TOP node inside the HDA - Updated the V-Ray Log messages when .VDBs are missing on disk - Added support for the "Override Frame Number" on the Image File VOP when inside a locked HDA - Added the "Opacity Source" parameter - Added a warning when a render is started that would require baking a large volume into the generated VRScene - Light Lister entries are now sorted by name - Added support for Cryptomatte by Material Name for materials inside HDAs **Export** - Significantly sped up the VRScene export when cached volumes are present in the scene - Sped up the VRScene export for instanced mesh lights holding cached alembic sequences - Changed the UV mapping for procedural textures when no UV generator is attached to ensure GPU support **VRScene** - Updated VRScene Unpack and Material Import UI **V-Ray Fur** - Added missing tessellation and distribution options **V-Ray Deadline** - Added "Advanced" tab for exporting key/value pairs as environment variables for the Deadline job   ### **Bug Fixes** --- **V-Ray** - Fixed the VFB History's "Use Project Path" option not working - Fixed a crash on missing license - Fixed a hang when exiting Houdini on Mac OSX - Fixed an issue causing V-Ray to fail loading due to wrong default packages location - Fixed an issue with the silent install option causing V-Ray to fail the installation when providing a config.xml file - Fixed a Mac OS 11.2 crash on render - Fixed a crash when exporting a VRScene sequence with a Python 3 Houdini build - Material Library download fails if the provided path on disk does not exist - Added the EULA file to the ZIP builds and Installer - Light Lister's Refresh button is not working on Python 3 Houdini builds - Fixed a crash when closing the Houdini GUI on Linux - Fixed wrong UV mapping for unpacked VRScenes - Fixed wrong output piping for the Remap texture when importing from a VRScene - Fixed Distributed Rendering not starting due to a missing library - Fixed an installer issue causing the GUI installation to fail - Fixed Multi ID Material not imported for VRScenes coming from Maya **Export** - Fixed instanced subnetwork is always visible - Fixed the "Override Settings Globally" toggle for Displacement not behaving as expected - Fixed V-Ray Environment Fog not visible in the rendered image - Fixed wrong image output path due to wrong forward slash replacement at export time - Fixed wrong image output name when generated through an expression querying a string point attribute - Transform is ignored when rendering multiple Dome Lights pointing to the same texture file because a single texture is exported for the shared image file path - Wrong export for "abcframe" primitive intrinsic when rendering a sequence - Fixed an issue with VRScenes submitted to the V-Ray Cloud that caused an error message related to the output file path format - Fixed "abcframe" intrinsic ignored for alembics used as the source geometry for a V-Ray Mesh Light - Fixed lights in the Renderer ROP's "Forced Lights" list ignored when rendering a sequence - Fixed "$F" always evaluated to "10" for texture file paths in the Image File VOP - Fixed multiple camera export issue after rendering with IPR - Fixed wrong AOV tag export causing wrong output image file naming - Extra Texture AOV in animation renders black after first frame - Wrong material assignment when bypassed nodes are present in the Material Builder when using the "Forced Materials" list on the Renderer ROP - Fixed crash after rendering of packed geometry or when exporting to a VRScene - Fixed doubled Motion Blur effect for V-Ray Mesh Lights using Alembics as source geometry **OSL** - Parameter values and connections are missing on scene re-open when using the OSL texture and/or material - Changing OSL code wipes all parameter values - Fixed float input errors when other nodes are attached - Fixed float output from shaders not exposed - Fixed surface derivatives not working - Fixed absorption and ray depth not exposed for refraction - Fixed user attributes not exposed for texture binding - Fixed emissive surfaces not emitting light **Rendering** - Fixed a bug causing no anti-aliasing for Cryptomatte in Material mode due to a missing parameter export for live geometry - Non-cached (in-memory) volumes would occasionally fail to render due to size limitations - Fixed wrong illumination over instanced geometry when using the Rayserver Instancer - Sped up rendering for instanced geometry when using the Rayserver Instancer - Fixed a crash when rendering volumetrics in a specific scene - Fixed an issue causing light links to fail for alembic sequences - The "Zero Infinity Depth" option was not working when "Filtering" was enabled for the Z-Depth render element - Fixed a rendering slowdown when using the TexOCIO VOP - Baking a single UDIM tile has no UDIM tag in the name of output image - Baking to UDIMs bakes the specified UV range for every tile, even when disabled - Enabling "Specify UV Range" caused the "UDIMs" option to stop working - Added support for baking a UV range without using the UDIM workflow so baking to a single texture is possible - Fixed an issue causing significant slowdown when rendering Alembic files on NUMA machines - Fixed an issue causing the V-Ray Log to fail updating during IPR sessions - The "Save Deep Data to Separate Files" toggle was causing a crash - Setting the number of Render Threads to a value higher than the hardware threads caused a crash - Fixed a crash related to the stored ROP settings on a particular scene - Fixed the TriPlanar texture "Random by User Attribute" option not working - Fixed texture baking using packed Alembics not working - Pattern ID texture does not work with delayed load Alembics - Fixed a crash when rendering groomed fur/hair - Fixed a random error related to volume rendering on NUMA machines on Linux - Fixed artifacts on packed Alembics containing degenerate primitives when texture filtering type is any other but "None" or "Nearest" - Fixed "-parameterOverride" flag not working for VRScenes exported from V-Ray for Houdini when using vray.exe - Fixed a crash with Denoiser and the Volume Grid Shader with the "Volumetric Z-Depth" option set to "Separate V-Ray Element" - Fixed a crash after rendering with IPR after production render with LightMix in the scene - Fixed V-Ray Fur not rendered when more than one texture attribute is used - Fixed an edge-case crash when rendering a volume with an assigned material that is not the Volume Grid Shader - Fixed a volumetrics related crash at render time with a specific setup - Fixed a crash with Light Mix after rendering if the name of a light is changed and the render repeated - Fixed a crash when rendering an Alembic file containing single-vertex polygons - Fixed non-default "Screen Window Size" camera values doubled if Motion Blur is enabled or a Velocity AOV is present in the scene **IPR** - Fixed a bug preventing an IPR update when changing any of the Fields tab options on the Volume Grid Shader - Fixed a crash when starting IPR with a wrong COP network image path in the Image File VOP - Fixed a crash when using the Renderer ROP's Clear Cache button when texture caching is enabled with a tiled EXR texture - Fixed a crash on Mac OSX when stopping IPR - Fixed a problem causing slow IPR update when simultaneously assigning a single material to multiple objects while IPR is running - Fixed a crash when quickly undo-ing and redo-ing an object delete operation - Fixed no Volume Shader updates when the render flag is set over a Null SOP for a Packed Disk Primitive VDB loaded through a File SOP - Fixed an IPR update problem causing the camera position to refresh with a one-step delay - Fixed an IPR crash when changing the Motion Blur settings on the Renderer ROP during IPR - Fixed an IPR crash when changing the frame when using the Phoenix Foam Shader assigned to particles - Fixed Debug flag not working when a VOP node inside a material builder is assigned to the geometry - Fixed a crash when changing the timeline frame when using the "Override Frame Number" option on Image File VOP - Fixed no GI during IPR regression - Fixed empty render and wrong export after running IPR **GPU** - Fixed a crash with a particular scene containing point particles - Fixed "v" not used for motion blur in specific scene when rendering with CUDA - Fixed a crash when rendering the V-Ray Toon material - Fixed a crash when enabling the Matte/Shadow object properties while IPR is running with GPU - Fixed a "Default Color" difference between CPU and GPU for missing textures, if the File Path field is empty - Wrong render for the Image File VOP's color output when used as a float input for the V-Ray Material's opacity socket - Point attributes from alembic files are not used at render time when rendering with GPU - Fixed an Opacity issue related to the MultiID Material when rendering with GPU - Fixed a crash when rendering volumes on the GPU, with CPU Light Cache enabled and Volume Light Cache disabled - Fixed a GPU crash with a specific setup utilising the UV Explicit VOP and the Bercon Noise VOP **UI** - Fixed duplicate parameter labels on the VRScans material - Fixed a UI issue with the Color Constant VOP causing errors in the Houdini Console - Fixed VFB "Source" layer string empty if Light Mix is selected     ## **Build 5.10.20** *Official Release* Date - June 17, 2021   ### **New features** --- **V-Ray** - Added support for Solaris - Added support Houdini 18.5.532 - Added support Houdini 18.5.563 - Added support Houdini 18.5.596 - Added support for the "Texture" mode Render Mask option on the Renderer ROP - Added the "Absorption Color" option for the Volume Grid shader - Updated the V-Ray Material's "Translucency" modes - Added the "Occlude Other Lights" option for Rect, Disk, Mesh and Sphere lights - Added "rest" attribute support for the TriPlanar texture for Alembic files (specified in the V-Ray Object Properties) - Added support for specifying any arbitrary string attribute stored in the Alembic file for the PatternID Texture VOP - Added support for the Cryptomatte "Per Attribute Value" mode for V-Ray Scene Ref primitive types, when "Rayserver Instancer" is enabled (specified in the V-Ray Object Properties) - The V-Ray GUI License is now released when no V-Ray Renderer ROPs are present in the Houdini scene   ### **Modified features** --- **V-Ray** - The VFB is now cleared on render start if the "Render Mask" option on the Renderer ROP is enabled **Textures** - Added support for the Image File VOP's frame overrides allowing linear/loop/ping-pong/hold playback of texture sequences - Changed the Default Color parameter of the Image File VOP to black instead of gray **Export** - Fixed a bug causing a significant slowdown of VRScene export of instanced volumes - Added support for animated Physical Camera parameters - The "Hair Width Multiplier" option is now always exported for Alembic files, even when the V-Ray Object Properties are not present on the parent node - Geometry/Subnetwork node transform samples for Motion Blur are now exported even when "Velocity Blur" is enabled on the Sampling tab **Rendering** - The "N" attribute is now respected when rendering points as circles **OSL** - Updated the OSL Material and OSL Texture due to various issues **UI** - The V-Ray Displacement's generation method now defaults to "Pre-Tesselated" instead of "On the Fly" - Deprecated the "Log Window" option on the Renderer ROP in favor of the new VFB's Log icon (bottom right corner)   ### **Bug fixes** --- **V-Ray** - Fixed a bug causing the VFB to disappear when selected, in Houdini Python 3 versions only - Fixed a bug causing V-Ray to fail loading if first used in the /stage context - Swimming texture coordinates with TriPlanar when using rest attributes with an Alembic file **V-Ray GPU** - Crash on render start with the V-Ray Toon material - Crash on render start with Matte geometry **IPR** - Crash when deleting a Subnetwork or HDA during IPR with the debug flag enabled on the node - The IPR refresh was always one step behind the user input **Install** - The V-Ray Installer selects the Python 2 version of V-Ray instead of the Python 3 one when the Advanced mode is used - Fixed various issues with the Silent Install option **Export** - Alembic files loaded through the MOPs instanced cause a crash on render start - Using V-Ray Subdivision on MOPs instances causes a crash on render start - The "UV Channel Name" VOP was not working after a Solaris related change - Hidden forced objects in the light's Illumination Mask are not illuminated at all - The "Skin" material's "Primary Reflection" and "Secondary Reflection" options were not exported - Fixed a regression with the "Bercon Noise" VOP - The $F4 tag is evaluated incorrectly when rendering in a Subnetwork/HDA in TOPs - Fixed wrong forward slash replacement for network paths - Fixed a crash when rendering a Geo node with Object Merge SOP pointing to an Alembic file - Fixed wrong export of Alembic's "abcframe" primitive intrinsic attribute when rendering an animation - No motion blur for per-frame alembic files containing multiple frame samples - The Physical Camera "Exposure Value" parameter was always exported as thirteen **V-Ray Proxy** - Crash on export with Houdini 18.5.462 **Chaos Cloud** - Cloud ROP fails silently if wrong ROP is connected **VRScene** - Incorrect import of reMap value from a .vrscene file, exported from Maya - Incorrect import of volumeNoise (3D noise) from a .vrscene file, exported from Maya **Chaos Cosmos** - Texture assets from Cosmos using the ".tx" format were failing to load **AOVs** - Node names are always used as AOV names for the Light Select element - The Light Select RE was not working due to a missing parameter export - Empty Light Select after the first frame, when rendering a sequence **OSX** - Fixed a crash on render start with MacOS Big Sur 11.2     ## **Build 5.00.50** *Official Release* Date - Nov. 17, 2020 ### **New features** --- **V-Ray** - Support for rendering in ACEScg color space with option to recognize the texture color space from the file name - Updated the V-Ray for Houdini installer so the V-Ray Material Library can be automatically set up in Houdini - Added the V-Ray Material Library (Windows only) - Added support for Post-Translate scripts in V-Ray 5 for Houdini - Simplified Renderer ROP UI - Added support for the V-Ray Memory Tracker **V-Ray GPU** - Add support for Out-of-Core codepath - Support for 2D displacement - Add support for OSL shaders - Add support for the Cellular map - Add support for the Bercon Tiles and Bercon Wood maps **VFB** - Add entirely new implementation of the VFB with integrated Layers compositing - Added support for the Light Mix Render Element **Materials** - Added Coat and Sheen layers for the V-Ray Material - Added a new car paint material with more precise flakes filtering and reduced memory usage **Textures** - Add a UVW Randomizer that should be used solely as Image File and Triplanar VOPs' uvwgen input with stochastic tiling support - Added randomization options for the Multi ID texture - Added a "Same Object Mode" option for the V-Ray Dirt texture **Lights** - Added an Illumination Mask option to the V-Ray Lights ### **Modified features** --- **V-Ray** - The "Light Path Expression" option under the Light Select element is now always available regardless of presence of the VFH_LPE_ENABLE environment variable - V-Ray shading VOPs are no longer visible in the Material Builder context of 3rd party render engines - Dropped support for Houdini versions below 18.0 **V-Ray Proxy** - Updated the Proxy Export Simplification Type drop-down **Materials** - The Gallery files for the V-Ray Material Library now ship with the V-Ray for Houdini installation **Textures** - The Color Space parameter for files loaded in the Image File VOP is now automatically set up based on the file's name - Added support for the "Reference Space" and "Reference Transform" options for the TriPlanar texture for world-space projections - Added the "Random" and "Pattern ID" textures for V-Ray 5 **Rendering** - Light Select elements with a Lights list pointing to non-existent scene lights will be ignored **Export** - Optimized scene export for scenes containing large numbers of lights in multiple subnetwork levels - Added support for expressions in the Renderer ROP's Objects lists - Added support for selecting subnetwork in the Light Select's "Lights" list - Improved export time for instances with motion blur - Added support for V-Ray Object Properties placed over a Geometry node holding a VRScene SOP - Added support for exporting UV sets from unpacked alembic files even if the attribute type info is not "texturecoord" **Baking** - Added support for named UV sets for the Renderer ROP's UV Mapping type **Material Library** - Updated the material library   ### **Bug fixes** --- **V-Ray** - Fixed a bug preventing V-Ray from loading on OSX - Fixed a bug causing the Standalone V-Ray executable to fail on Windows - Fixed V-Ray not loading on Linux - Fixed a crash when rendering using Light Select Light Path Expressions - Fixed a crash when closing the Volume Grid Shader custom ramps on OSX - Fixed a bug causing textures with $F in the file name to not be evaluated correctly for production rendering - Fixed a crash when the License Server is not installed and rendering is attempted **V-Ray GPU** - Fixed an 'Exception in Core' crash with CUDA and RTX - Fixed a bug causing incorrect evaluation of attributes in the texture's path when rendering with CUDA or RTX - Removed legacy message "Unsupported 2D Type for Displacement" printed in log when using V-Ray GPU - Fixed a CUDA crash on Linux - Fixed a bug causing displacement to fail when rendering with CUDA or RTX - Fixed a bug causing attributes on particles to be ignored for shading **IPR** - The Subdivision toggle under the Displacement Properties does not update the IPR - Changing any of the OCIO Texture's parameters does not update the IPR - The Illumination Mask parameter is not updated in IPR - Fixed an IPR crash after production rendering - Fixed an IPR crash when starting IPR on frames other than 1 - Fixed an IPR crash when changing the timeline frame during IPR - Fixed a bug causing IPR to halt when changing a parameter on the new Car Paint 2 material **VFB** - Fixed a crash on second render after adding a new layer in the compositor - Fixed a bug causing inaccurate Render Region in production rendering - Fixed a bug causing production renders to disable the history and clear the set up History folder path - Fixed "Use VFB Background Image" option under the Renderer ROP not working with the new VFB **V-Ray Proxy** - Fixed crash on export with Proxy Export SOP **Export** - Fixed bad parsing for quotes in Light Select's Light Path Expression - The Illumination Mask parameter does not behave correctly when the same light is present - Fixed an incorrect export for the OSL Texture and OSL Material - Fixed Exposure Value of Physical Camera is not exported - Fixed Hair Properties' Render as Smooth Curves toggle breaks material assignments with Multi Material for hair - Fixed a Deadline issue causing wrong export path for VRScenes in a specific case - The Material ID VOP's "lpe_label" parameter was set up to export incorrect data type which caused wrong LPE output - Some animated Renderer ROP parameters are ignored when the render camera is also animated - Fixed a bug causing the V-Ray UVW Randomizer VOP to behave incorrectly when used with the V-Ray Triplanar texture - Fixed a bug causing double export for the lights in the Light Select element producing incorrect results - Fixed wrong parsing for Image File node's File Path parameter **Rendering** - Fixed VFB Render Region is discarded on render or IPR start - Fixed UI locked after render is done or stopped when the Renderer ROP is connected to another node - Fixed Bezier Curve texture produces values beyond 1 even if Extrapolate Beyond End Points is OFF **UI** - The "Pack Scene" button causes an error when looking for the V-Ray Log if the relevant environment variables are not present and the log file is missing - Set Light Select default "Lights" parameter to "*" instead of empty string - Added additional Sun Light options to the V-Ray Light Lister **VRScene** - Fixed a bug causing the "Unpack to Polygons" option to occasionally cause a crash - Fixed a crash when creating a VRScene SOP if V-Ray is not initialized by creating a Renderer ROP - Fixed a crash when creating a VRScans VOP if V-Ray is not initialized by creating a Renderer ROP **Cloud** - Fixed an issue causing upload of multiple jobs from multiple Renderer ROPs connected to the Chaos Cloud ROP to fail **Installer** - Updated the V-Ray Installer for OSX and Linux ## **Build 5.00.30** *Beta Release* **Date** - Sept. 16, 2020 ### **New features** --- **New VFB** - Add entirely new implementation of VFB with integrated Layers compositing **V-Ray** - Support for rendering in ACEScg color space with option to recognize the texture color space from the file name - Simplified Renderer ROP UI **V-Ray Library** - A material library browser utility for the V-Ray Material Library **Materials** - Added Coat and Sheen layers for the V-Ray Material - Added a new car paint material with more precise flakes filtering and reduced memory usage **Textures** - Add a UVW Randomizer that should be used solely as Image File and Triplanar VOPs' uvwgen input with stochastic tiling support - Added randomization options for the Multi ID texture **GPU** - Add support for Out-of-Core codepath - Support for 2D displacement - Add support for OSL shaders - Add support for Cellular map - Add support for BerconTiles and Bercon Wood maps   ### **Known Issues** --- - No Post Translate support yet - The Light Mix element is not yet available - VFB Render Region is ignored for Production rendering and IPR - Physical Camera’s Exposure Value parameter does not work as intended - PatternID and Random textures are not yet implemented for V-Ray 5 - Displacement from VOP network does not behave correctly when applied with a Material SOP to Merged meshes - only if some of the faces do not have a material with displacement assigned to them - Incorrect message "Unsupported 2D Type for Displacement" printed when rendering with V-Ray 5 GPU