--- title: "V-Ray 6" canonical: "https://documentation.chaos.com/space/VRAYHOUDINI/113280800/V-Ray%206" format: markdown --- ## **Build 6.20.05** *Official release, Update 2* Date - Feb 15, 2024 > Macro (ui-button) ### **New features** --- **V-Ray** - Add new instancing backend for lower time to first pixel and optimized scene size - Implement multithreaded "Compiling geometry" step for polygon meshes - Add Houdini 20: GCC 11 Linux builds support - Add support for Houdini 20.0.590 production build - Add support for Houdini 20.0.547 production build - Update V-Ray Core to 6.2 - Make single installer for all supported minor HDK builds, per major HDK version - Image File VOP "File Path" parameter promotion - Add "Save Cryptomattes Separately" toggle under the Image tab of the V-Ray Renderer ROP - Add V-Ray Decal Displacement parameters - Add ability to assign V-Ray Object Properties at the SOP level - Add support for V-Ray Material Metalness and Roughness AOVs - Add support for the "Preserve Geometry Borders" toggle for Subdivision - Add support for Light Select for Environment Fog with texture attached to it - Add support for Houdini's native Parameter VOP - Add support for positive and negative axis textures for the Triplanar texture - Add "Path Guiding" for Light Cache GI to the V-Ray Render Settings - Add "Adaptivity Clamp" option to the V-Ray Render Settings - Add "Directional Strength" parameter for V-Ray Rect Light - Add "Adaptivity Prepass" parameter for Brute Force GI - Add custom OCIO control for providing a config file under the Units tab of the V-Ray Render Settings - Add Phase Function control for the V-Ray Fog Effect - Add support for V-Ray crease data with subdivision through the "creaseweight" attribute - Add support for shader overrides based on "scene_name" for Rayserver Instancer - Add support for subnet connector VOP - Add Sheen, Sheen Glossiness, Coat and Coat Glossiness AOV support - Add "Light Select Matte" toggle for isolating shadows over matte/holdout surfaces with Light Select AOV - Add "Direct Diffuse Shadow" and "Direct Specular Shadow" modes for Light Select AOV - Support for VRScene unpacking with RenderStats, Wrapper or Multi ID material export from 3ds Max - Add Volume Shader Velocity Smoothing "Threshold" and "Similarity" options - Export the V-Ray Material SSS to the SSS render element instead of Refraction - Add support for SOP level V-Ray Object Properties for packed disk primitive VDBs - Add "Min.Pixel Size" render setting to support very small lights that are far from the camera - Add support for Cryptomatte by Attribute for alembic primitives and string string attributes placed over the packed alembic primitive - Add "Bump Delta Scale" control for the V-Ray Material - Add support for Renderer ROP Material Overrides for Volumetrics - Add N attribute sampling support through User Color VOP **Solaris** - Add support for Resumable rendering - Add support for the V-Ray Toon environment effect through the Single VOP and the Render Geometry Settings LOP - Add support for Unpacking nested instances to improve Time to First Pixel - through the Render Settings LOP - Implement Python Post Translate support through the Render Settings LOP - Add support for VDB vector fields for Smoke Color - Solaris: add support for vec3 and float3 volumes for smoke color - Solaris: аdd support for live/native Houdini volumes - Solaris: Add support for V-Ray Clipper through the Render Geometry Settings LOP - Solaris: Add support for OSL texture and material - Solaris: Add support for Trace Sets - Solaris: Use V-Ray Camera settings for viewport IPR - Solaris: Instance detection to reduce time to first pixel and RAM used for rendering - Solaris: Added COP (/img) nodes support - Solaris: Write denoiser generated render elements through Hydra for standalone denoising post-render - Solaris: Support for Cryptomatte primvars for instanced particles - Solaris: Support for Cryptomatte primvars for instanced hair - Solaris: Initial implementation of V-Ray light filters - Solaris: Faster output for beauty render element through LPE (C.*) - Solaris: Add support for Light barn door parameters **Fur** - Expose V-Ray Fur "Lock to Surface" and "Reference Frame" for "Per Area" distribution type - Add support for Per Area distribution type for V-Ray Fur with live geometry - Allow for separate material assignment for V-Ray Fur when using Displaced geometry as the source **GPU** - Add CUDA/RTX support for the Random VOP - GPU: Add support for object properties reflection/refraction mask in RTX mode - Add GPU support for Mtlx Image's Signature type ### **Modified features** --- - Solaris: Add UsdUVTexture scale/bias support - Solaris: Ensure smooth normals on crowd caches - Cosmos: use space_multiplier for proper scaling of imported objects - Set Cosmos asset materials using a Material SOP instead of assigning the material at the object level - Expose the "Scale Opacity by Scene Units" option of the Volume Shader so Smoke Alpha can be based on scene units rather than voxel count - Hide the old Hair3 material from the GUI - Add missing "Position Across Strand" output for the V-Ray Hair Sampler - Show the"Use Focus Distance from Camera" parameter for the Depth of Field settings of the V-Ray Renderer ROP - Expose the UV Bercon Variance Offset, Size and Angle as textureable parameters - Enable IPR info logging by default - Specified VFB History folder should be automatically created if not present on disk - Combine Light materials and Lights with duplicate names in a single element when using Light Mix in "Instanced Lights" mode - Solaris: Do not clamp velocity by default for Velocity AOV - Apply Enmesh from Cosmos import on all selected object nodes - Rendering noise pattern may remain the same for a few frames even with "animated noise pattern" option enabled - Ability to promote parameters for textures in VOP context - Add support for automatic UV channel handling for VRScene materials from Houdini to 3ds Max - Solaris: Speed up translation of V-Ray shaders - Solaris: Improved viewport volume speed - USD: Add standalone V-Ray 6 builds - Set /obj V-Ray light node shape to 'light' and color to yellow on creation - Vantage: Instanced geometry is not loaded from live link to Vantage - Allow post translate scripts to change VFB settings and layers ### **Bug fixes** --- - Solaris: toggling control on one of the Volumetrics settings triggers the VFB - LightSelect : shadow select modes are missing in Type dropdown menu - Solaris/USD : "Use Blend Input" of TexFalloff breaks the IPR - Solaris: TexFalloff is not updating in IPR - Solaris: Light linker does not trigger an IPR update - Solaris/USD: Light Linker does not respect instances - Solaris: Render hair and smooth normals on Crowd assets as Karma does - Solaris: TexSoftbox ignores vignette - Solaris: Light Linker does not respect include/exclude when subobjects are used - Solaris: Rect Light has wrong control parm definition for directional_strength - Solaris: Error when trying to create a V-Ray Standard Render Vars LOP - Solaris: Light Filters go missing in Viewport rendering when changing the node display flag - Crash when rendering multiple hair systems with with different time/geometry samples - Installer button for "Help make V-Ray better" is missing - Installer will hang if you run the V-Ray installation while Houdini is open - Solaris: Crash with the p_ref AOV - Solaris: Cylinder light flickers on every frame - Solaris: V-Ray light filters have stopped working - MaterialX: MtlX Mix VOP in "Surface Shader" mode has no effect - Very small lights will flicker or completely disappear from final render - Solaris: when no lights are present in /stage, a default light with very high intensity is generated for husk with Houdini 20.0.506 - Houdini 20: V-Ray Material builder is not shown in the menus by default - MtlX: UVtiling and UVoffset parameters of MtlX Tiled Image are not working with V-Ray - Volumes in Volumetric Geometry mode disappear when object level transform is modified - Hang on sequence render end on Linux with hython and volumes when passing a python file with a list of Houdini files to render - Hang when rendering volumes with Motion Blur starting Nov. 23, 2023 - Solaris: Discrepancy between Production and Interactive when rendering volumes - Aperture Offset with Data Window doesn't work - Render Region in Solaris is wrong in Houdini 20 - Environment fog container renders empty when Dome Light shadows are enabled - Hair crash/hang when there are repeating vertices on the same hair strand - "Mix. Map" is always exported and used for V-Ray Mix texture, making the "Mix Amount" parameter redundant - Wrong export and rendering for UV Projection for Solaris and vanilla Houdini - Compiling geometry in V-Ray Standalone with specific scene takes high amount of time - Solaris/USD : MtlX Geometry Property Value has stopped working - Enabling the "W Coord" for Hair will cause the Z component of custom attributes to be overridden when read with UserColor VOP - Solaris/USD : Custom primvars have stopped working with the latest nightly builds - Solaris/USD : Instanced geometry is not showing in Viewport render with the latest nightly build - Solaris/USD : Wrong color for V-Ray Toon effect - Solaris/USD : Light material's "Double-Sided" and "Emit on Back Side" options have no effect with the latest nightly build - Solaris/USD : expose "Occlude Lights" parameter for Rectangle, Disc and Sphere lights - Different displacement on Linux and Windows on a triangle fan with a degenerate triangle - Mac OS: QT errors when rendering with Husk - Ocean Spectra's pointmask doesn't work correctly when the grid is offset - Solaris: Artifacts in Noise Level AOV when rendering through Husk using the Bucket Sampler - Blank Velocity pass when Displacement is enabled - Solaris: Motion Blur and Depth of Field are disabled by default for Husk - Scanned material: file parameter has wrong value - Disabling the Render Stats "Cast Shadows" option has no effect for self-shadowing when used in a Material Override shading network - MacOS: Immediate crash on render and/or VRScene export - Solaris/USD : attenuation parameters for mesh light have wrong names - Ocean Spectra "cusp" output has varying intensity during animation rendering causing a flickering effect - Cosmos: textures of cosmos assets not rendered starting with builds from July 12 - Solaris/USD: wrong bitmap path when in file name - Export Camera Screen Window X/Y parameter for each frame in the VRScene file - Inability to choose In / Out Color Space Parameters with aces-v1.3_ocio-v2.1 config - Ocean Spectra Wave Instancing - crash when "Radius" option is disabled - Ocean Spectra Wave Instancing artifacts when instance point radius overlaps for multiple points - Solaris: Camera Aperture Offsets are ignored when rendering through Husk with V-Ray - Significant rendering slowdown with Ocean Spectra displacement between Core 6.0 and 6.1 - The Sun Light Clouds "Seed" parameter should default to "0" instead of "1024" - The first render after disabling "Override Camera Resolution" on the Renderer ROP is cropped incorrectly - Resolved unnecessary object cooking - Wrong alembic frame is loaded when using a looping sequence with Motion Blur enabled - Missing export for nodes inside Subnet VOPs when using a Parameter VOP to create the I/O sockets - Solaris: missing primvar export when Reference LOP "Make Instanceable" is enabled - Velocity AOV output is wrong when using a Digital Asset for the Render Elements parameter on the V-Ray Renderer ROP - Changes to Log Verbosity aren't being saved when changing it after ending IPR session - Support for the Alembic file format for V-Ray Fur - Render Elements are not exported separately when Write Deep Data is enabled - Animated Focus Distance parameter is not exported when Physical Camera is not present - Update V-Ray Fur distribution slider range - Alembic Velocity blur bounds are computed based on geometry time samples blur - Support for Displaced Geometry for V-Ray Fur - Solaris: IPR is not updated on shader parameters change - Wrong V-Ray Material SSS with Rayserver Instancer enabled - Solaris: V-Ray Dome Camera FOV is not correctly exported - Solaris: Materials always force create a preview shader - Solaris: Translate promoted parameters to the main shader primitive - SOP level material assignments are ignored for instanced Alembic primitives using Rayserver Instancer - LightMix: all materials are rendered as AOV when Light groups are Instanced Lights - V-Ray About Window is too big - Data conversion for socket type "color" to socket type "vector" fails - LPE: wrong contribution when light LPE tag is used - Solaris: V-Ray Toon material is not working - EULA: installer does not save ".eulaAcceptedXXXXXX..." file , so second acceptance is required in Houdini - Solaris: VFB may be not shown for husk - Solaris: Missing geometries with instancing detection on Linux - Plastic Translucent Cosmos Materials renders incorrectly - Textures' parameters do not show up in Houdini 19.5.605 on OSX - Wrong parameter label for Transform Matrix Rotation Order control - Wrong displacement amount exported for V-Ray Decal - V-Ray Renderer "Show Frame Buffer" button does not work until V-Ray is initialized through a render - Bump does not work when Attributes are added to the Triplanar - Solaris: Match multiple texture user tags - Object Properties visibility settings have no effect for very small objects when Subdivision is applied - Cast Shadows option from V-Ray Object Properties does not work with static geometry when a material is assigned - Solaris: vector displacement options are not exported - Solaris: export float AOVs for Denoiser "defocusAmount" and "noiseLevel" - Very slow forced materials translation - Mesh Light disappears on second frame of a sequence render in GUI rendering only - 3ds Max VRMat import of VRScene material coming from Houdini has no UV mapping - Solaris: Duplicated frames when rendering specific USD with Husk - Velocity render element with motion blur disabled causes triplanar offset - Post Translate script effect is lost during IPR for Physical Camera, if changes to the camera parameters are made - Solaris: Render Region is sometimes not updated correctly until a camera move - Crash or Freeze when scrubbing the timeline while IPR is active - Environment Fog is missing from Light Select AOV if the fog is textured - GPU: Matte Shadows is wrong with Rect lights when Shadow Bias is very low - Slow export for VRScene files when batch rendering - Solaris: Performance issues on some configurations with certain Ocean setup - Solaris: V-Ray Sampler bumpNormals output is wrong for rayserver - Solaris: V-Ray Sampler random_by_polyShell does not work with rayserver instancer - Solaris: Add support for Velocity AOV with disabled motion blur - Solaris: Cryptomatte for Material Name and Material Path modes has wrong manifest - Pack Scene command throws an error with latest builds - Popping alembic transform when motion blur is enabled with Duration of 1.0 and Interval Center of 0.0 when exporting single VRScene for entire sequence length - Solaris: Discrepancy in Mapping compared to V-Ray for Maya with a provided .USD file - Specific tiled EXR file returns black color when applied as texture due to only channel present in file being rgb.R - LPE light tags are not treated as events which causes wrong output for tagged lights - GI from all lights is included in Light Select when using LPEs with Light Cache instead of Brute Force - Ocean Spectra texture with motion-blur produces slightly different displacement than without motion-blur - Solaris: display flag change makes all the geometry go transparent - Wrong transforms in Hydra with specific USD scene - IPR: Decal displacement is not handled by IPR - Light Material: texture as color multiplier produces different result than direct value - LightInstancer: Add support for instancing of textured lights - Primary visibility for geometry with overlapping parts cuts to alpha - V-Ray Enmesh: add support for alembic as source and reference objects - V-Ray Enmesh: add support for packed source and reference objects - Installer: prevent installing over running V-Ray if Houdini or Husk are running - Instanced objects transform is ignored when using Light material with Direct Illumination - Solaris: Displacement VOP parameter "Use Global Settings" is ignored - Color Correct VOP is not exported to .vrscene when GPU is chosen - High memory usage and geometry compile time when using Alembic with instanced shapes instead of vrmesh - MaterialX Color Ramp has wrong output when used with a Geometry Property Value sampling the UVs of the geometry - Solaris empty viewport when using Distributed Rendering - VRScene Material Import fails due to missing plugins: MultiplyDivide and PlusMinusAverage - Solaris: Changing the material connected to the output node of a V-Ray Material Builder VOP does not cause an update - VRayDirt's "Ignore Self Occlusion" does not work - Solaris - "Use" options for SettingsEnvironment from Dome Light for GI/Reflect/Refract/Secondary Matte are not used - Standalone: illumination masks exported from VFH not rendered in standalone - Incorrect motion-blurred displacement when expansion type is dynamic - Light Textures - token is exported in the file path instead of evaluating the expression - Deadline: ${FBATCH} is not evaluated correctly - Incorrect displacement for moving objects motion-blurred with geom_samples >= 3 - Crowd: Smaller values of Random Clip Offset lead to wrong render results - Add OCIO to color space menu - VFB - using an EXR as Background image with "As Foreground" enabled causes the image to go black - VFB - do not tint RGB channels when displaying them isolated - IPR: Constant updates for volumes when changing shader params if Motion Blur On and rendering the last file in the VDB sequence - Solaris: custom volume used for smoke color is not rendered correctly - Square artifacts on using Adaptive Dome Light on GPU - Crowd: Missing delay in animation when rendering the whole sequence compared to smaller frame ranges - Wrong applying and mapping of imported via .vrscene materials - Wrong mapping after Unpacking to Polygons a .vrscene export from 3dsMax - Crowd: Discrepancy in animation result when rendering sequence and per frame in a specific scene - missing agents - Wrong material assignments when using animated switch node and uploading to Chaos Cloud - Solaris: options in Display Options > Renderer are not handled - Solaris: float to color automatic conversion does not work - Missing texture animation export for particular scene on first export, if no GUI render is initiated - Solaris: crash when shader has wrong connection - Add native support of light labels in the LPE manager - Ocean surface sometimes differs from the one in Houdini - Animated shader parameters are not exported for static meshes - Add support for RGBA Combine VOP for GPU - Displacement via V-Ray TexTriPlanar results in holes in the geometry with specific scene - Triangular artifacts on packed .abc when Bitmap Filtering type is not set to None or Nearest - Immediate crash when Denoiser and Volume Grid shader with the Volumetric Z-Depth parameter set to 'Separate V-Ray Element' is added on volumes - Hang after render of packed geometry is finished and when exporting .vrscene - Lighting discrepancy between CPU and GPU results when Direct Light is used with Intensity higher than 1 - Enable Probabilistic Volumetrics by default - Empty About V-Ray window - V-Ray Clipper does not work for Lights - Mesh lights are clipped by V-Ray clipper even when "Clip Lights Geometry" is disabled - Falloff Curve is faulty set to Constant interpolation when TexFalloff texture is unpacked from an imported .vrscene file - Unpacking to polygons provokes error and crash with a specific .vrscene - VFB2 resizes by itself on render if the layer panel is collapsed - VFB constantly loses focus on OSX and gets hidden behind the main Houdini window - Disable light materials option of the V-Ray Renderer has stopped working - Ignored ROP parameters when changing camera to animated one - Failed to create node for plugin TexBezierCurveColor when unpacking a vrscene from 3ds Max - Attributes are not correctly interpolated for geometry with OpenSubdiv applied - V-Ray ROP inside an HDA is not handling referenced parm when HDA is locked - Light Instancer with 100k lights failed to render on Chaos Cloud - Textures assigned through image file path tokens referencing a string attribute are ignored when rendering on the Chaos Cloud - Hang or crash when assigning a COP network as texture during IPR on OSX - Alembic with baked shop_materialpath loses its material assignment when subdivision is applied - UV Channel Named exports UVWGenProjection when used directly in ImageFile - Wrong results for Normals and BumpNormals AOVs when rendering with GPU - Environment Fog is missing in Light Select element when Deep Output is enabled - Preview of .vrscene with many proxies is very slow - add proxy preview type and cache data in preview - Textures provided to OSL Texture as input are not evaluated - VRScene viewport preview is broken on Windows - VFB gets smaller and smaller every time it shows - Difference in refractive objects rendering between CPU, IPR and CUDA rendering. - Geometry node's Render>Geometry>Point scale parameter is not considered when rendering packed alembics - The position of an animated camera is not updated when changing the timeline frame during an IPR session - Crash in a specific scene with adaptive lights - Crash when rendering particular vrscene with Standalone on Linux - Forced hidden objects are not rendered - VFB disappears when deselecting the Houdini window on Linux - IPR not updating copied instances - Switch with expression is not updated in IPR - Channel Reference in rendered image name is not evaluated correctly - Hang when changing resolution in VFB IPR - Mesh and Hair merged in the same object breaks material assignments - Creating lights and geometry during IPR leads to some light include/exclude issues - IPR not handling object level transformations with expression - Cryptomatte by attribute is not working on crowds - IPR - first created light is not disabling the default one - IPR is not always updating regular mesh copied to simulated points - Crash to desktop when mesh geo is switched to a packed one - IPR not handling SOP transforms - Houdini Digital Asset crash with "V-Ray Environment" or "V-Ray Render Elements" - Crash in VFB when switching between images in the History panel - Freeze with specific user scene by trying to select nodes on first IPR run - Crash when attempting to import a Cosmos asset - Crash in standalone sequence render of volumes from a single VRScene - Crash when changing MaterialX Image VOP's "Signature" parameter back and forth - Crash on export when particles with velocity are present in the scene - Crash when rendering with instanced lights and using LPEs - IPR hang if Render Node license is not present - IPR: crash on exit after an IPR session - Geometry compilation fails for specific Alembic file with Displacement assigned to it - Crash on exiting Stage/Houdini when a render is initiated in both Solaris and Regular - Hang when attempting to import a specific VRScene containing instanced alembics - OSL: Crash when loading a particular OSL file - Crash in IPR when modifying the render region while scene changes are synced - Solaris: crash when changing the render flag from MaterialX to a V-Rray Material Library LOP - Setting "Screen Window Size" to negative during IPR crashes V-Ray & Houdini - Solaris: Crash when enabling than disabling "instancable" parameter of Configure Primitive LOP - NUMA Standalone render fails in scene with a lot of Alembic files that have a large number of attributes - Crash on last alembic frame export when motion blur is enabled and using per-frame alembic files - Crash when Reflection Glossiness is present before Light Mix element in AOVs channels container - Crash with Light Instancer and 250K lights - In a newly created blank scene using certain python code provokes a crash - Solaris: Immediate GPU crash after using Instancer - Crash when importing materials from .vrscene - Exception in Core when using frag file in a GLSL Texture as Extra Texture AOV - Crash after rendering with IPR after production render with Light Mix in the scene - Alembic: Crash with polygon with 1 vertex - GPU crash with a specific setup including V-Ray UVW Explicit and Bercon Noise - Crash or Hang when rendering a sequence with Phoenix Foam Shader assigned to particles - Crash when enabling matte/shadow object properties options while GPU IPR is running - Crash to Desktop if Volume Grid Shader is copied during an IPR session - Animated SettingsOutput "img_file" and "img_dir" can't be overridden with -parameterOverride - Export the smoke volume to PhxShaderCache even if rendering of smoke is disabled to ensure the transform is inherited from the smoke field - Solaris: displacement is not updated for changes to the input shading graph ## **Build 6.10.09** *Official Release, Update 1* Date - June 12, 2023 ### **New features** --- **Chaos Cosmos** - Add support for Chaos Cosmos Enmesh assets **Cloud** - Add V-Ray Sun Procedural Clouds **Exporter** - Export sphere primitive as GeomPerfectSphere for V-Ray 6 **GPU** - V-Ray GPU Texture Compression - V-Ray GPU - Mesh Mode support for V-Ray Clipper **Materials** - Add Volume Shader Phase Function parameters - Update V-Ray Material **OSX** - Add support for Cosmos on OSX and Linux **Solaris** - Add support for the Phoenix Particle Shader - Add V-Ray profiler support in Solaris **Textures** - Chaos HDRI Import - link the texture UV generator "Horizontal Rotation" to the parent Dome Light's Rotate Y **V-Ray** - Add Finite Dome parameters - V-Ray Profiler Improvements - Houdini: Add NVidia AI Denoiser Upscaling and Panorama options for Denoiser ### **Solaris** --- **MaterialX** - Emissive Materials in Light Select and Light Mix - Light Mix "To Scene" button has no effect for BRDFLight materials **Solaris** - RenderVar LOP - expose extraTex "force_32_bit_output" in V-Ray Tab if sourceType is primvar - Support for Cryptomatte primvars from unpacked instancers - Add PhxShaderSim::scene_name export when volume shader is in volumetric mode for Cryptomatte - Faster output for beauty (C.*) LPE render element - Add Hair Width Multiplier option to Render Geometry Settings LOP - Add an option whether to use reference points or not - Add beginning forward slash for Cryptomatte Node Path output - Use primvars from prototypes instead of instancer template points when available - Support for Cryptomatte primvars for instanced particles - Support for Cryptomatte primvars for instanced hair - Slow translation of V-Ray shaders - Displacement - override settings globally not working - Fixed - Displacment VOP parameter "Use Global Settings" is ignored - Add overscan support - Fixed - Dome Light Finite Dome options missing in UI - Fixed - RenderVar sampler:pointReference not rendered for hair - Fixed - Respect USD Texture Gamma control in Solaris - Hydra: Export only used primvars - Fixed - Fast movements in the V-Ray scene view are showing only the initial and final positions of the objects - Fixed - Black zDepth when using specific settings - Always export Probabilistic Volumes controls to SettingsOptions or update plugin default to enabled - Fixed - Wrong render when Data Window NDC of RenderSetings LOP has different values for minX/Y or maxX/Y - Fixed - No AOV output starting with nightlies from Jan 09 2023 - Fixed - Wrong result when using nested instances with Retime Instance LOP - Fixed - Wrong color mapping for textures coming from Maya due to export of color_space instead of transfer_function for BitmapBuffer plugin - Fixed - Adding primvar aov causes hair width value to be exported divided by 2 - Fixed - Render is stretched when using overscan - Fixed - Pixel shift when overscan or regionrender - Fixed - Visibility properties has stopped working on meshes since january27 - Fixed - Velocity AOV with disabled motion blur - Fixed - Velocity and interval center - Fixed - Domelight intensity - wrong expression - Fixed - TexSampler::random_by_polyShell does not work with rayserver - Fixed - Instanced objects Cryptomatte for Material Name and Material Path modes has wrong manifest - Fixed - Render Region is sometimes not updated correctly until a camera move is made - Fixed - Transform applied to volumes used as prototypes is ignored for instances - Fixed - Default Color for Image File VOP has no effect - Fixed - Empty Deep Output file path causes V-Ray to fail saving a rendered image - Fixed - GPU render settings are not exported - Fixed - No motion blur for lop level animated object - Fixed - Wrong render region with physical camera in Solaris - Fixed - OSL: Missing input parameters - Fixed - Curves and ramps in VolumeGrid Shader are not translated - Fixed - Smoke volume does not have color - Fixed - Instances has no moblur with particular scene - Fixed - Transform of a single instanceable volume primitive is ignored - Fixed - Clicking the render region tool "Clear Render Region" button with Physical Camera enabled causes wrong camera transform - Fixed - Parts of instanced geometry go missing randomly with specific scene on Linux - Fixed - Normal bump not rendered - Fixed - Vector displacement options are not exported - Fixed - "Invalid property name error.!" for a lot of shaders - Fixed - Volumes are not rendered because of missing parameters of PhxShaderSim - Fixed - Displacement texture file path is not handled - Fixed - Object properties shadows_visibility is ignored by vrproxy - Fixed - GeomInstancer crash - Fixed - Meshlight causes "EXCEPTION IN CORE" - Fixed - Mesh light crash - Fixed - Change display flag from meshlight to its geo causes a crash - Fixed - LightLinker causes a crash with builds after January 27 - Fixed - Crash when change renderFlag from materialX to V-Ray material library lop - Fixed - Crashes when Environment Fog as a material is present in the scene ### **Modified features** --- **Cloud** - Add new V-Ray Sky Clouds options for density, seed and contrails **Exporter** - Add support for exporting Decal displacement texture for each decal object - Ply2vrmesh/vrscene: use path user attribute as object path if exists **Installer** - Show correct V-Ray version in installer - Update installer images for official V-Ray 6 for Houdini release **Materials** - Add support for vector volumes for smoke color in the volume grid shader in Houdini **Rendering** - Expose Volume Shader Volumetric Render Elements controls - Add ultra low thread priority option to render settings **Textures** - Add TexLayered plugin to Houdini - Hide "Layered Texture" from the shelf and remove (Max) suffix from "V-Ray Layered Texture (Max)" - Add missing "allow_negative_colors" option for the Layered texture **V-Ray** - Update changelog - V-Ray 6 for Houdini Beta Release - Add support for point integer attributes for shading - Pick support for Houdini 19.5.534 for the stable builds for V-Ray 6 - Mac OS notarization for V-Ray for Houdini builds - Set "Thread Priority" to "Lowest" by default - Standalone -frames=range is broken if path keyframes are used ### **Bug fixes** --- **Alembic** - Option to use velocity only - Cryptomatte "Per Attribute Value" does not work for Alembics **Exporter** - V-Ray Enmesh: obj_scale is always exported as 1 - V-Ray Sun: clouds_phase_y parameter is not exported at all - Tests regression related to export after specific commit on Feb 1, 2023 - Missing scene_name export - VolumeVRayToon - depthCurveOn and angularCurveOn are not exported - Material Overrider plugin is not exported starting with nightly builds from Apr 07 2023 - Attributes on packed primitives are not exported to Rayserver - OSL Texture and Material are not exported **GPU** - Device Select window is empty until render - CUDA/RTX : white zDepth when using bucket sampler - Crash when render mesh with attributes in shader and moblur ON **IPR** - Decal displacement is not handled by IPR - Selecting a node in the root /obj context will restart IPR - Multi ID Material does not trigger ipr update if builder is used as input - Fire Opacity Multiplier in "Fully Visible" mode has no effect in IPR - Black region in the render when changing camera windows size during a session - Crash if start a render after an ipr session - Crash when using the Bypass flag and node doesn't have inputs - Debug and Ignore flags do not work for nodes inside shaders assigned as material overrides through the Renderer ROP **Installer** - Python is not packed into the V-Ray 6 for Houdini beta installer - V-Ray 6 installer says "V-Ray 5" when uninstalling - Licensing server and crash problems **Instancing** - LightInstancer: Instanced lights are always invisible regardless of visibility parameter - Non-uniform scaling of instances - Rash with Decal Displacement when applied to geometry in Instancer2 plugin - Massive hair in **Lights** - LPE light tags support - V-Ray 6 "C.*" LPE accumulates lighting for LPEs using a light tag such that the illumination is doubled for each tagged light **Materials** - V-Ray Enmesh: enmesh material ignores attributes - Toon material error in log due to dynamic parameters flag - Cast Shadows option from V-Ray Object Properties does not work with static geometry when a material is assigned - User shader translator crash on Linux in hbatch/hython **OSL** - String parameter creates a vector4 input instead of color input **Rendering** - Volume emission not rendered in beautyLPE - "Probabilistic Volumetrics" option is ignored for GUI rendering in VFB but is exported correctly to VRScene for Standalone - VRayObjectProperties plugin: matted objects appear in AOVs even if generate_render_elements=0 and visibility settings are enabled as well - Instances: v@pscale with same value for all components is rendered different than f@pscale - Instances: v@scale and v@pscale are rendered same way - Animated cache path for instanced meshes is ignored for instances that point to the same file on the first frame of a render sequence - Tri-Planar texture randomization changes on every frame when using the "Auto" or "Instance ID" Mode with a sequence render from GUI or VRScene - Ocean Spectra "Downsample" option is increased on every frame when rendering an animation - Attribute "uv" for hairs in Alembic file render black - TriPlanar into Bump in Normal (Tangent Space) has artifacts if the rendered geo has additional map channels - Omni/point light with far decay is not rendered - Mesh Light disappears on second frame of a sequence render in GUI rendering only - Karma hangs on sequence renders when V-Ray in installed - VRayProxy: Hang after second Render to Disk **Textures** - Randomly missing UDIM textures - Very small triangles are ignored when Texture Baking causing black artifacts - Wrong evaluation for frame token $F when used in expression for texture baking UDIM range - Light Mix "To Scene" option sets the Light color to black if a texture is present on the light **UI** - Hide Cosmos Browser from V-Ray menu on Linux and OSX - Settings Environment UI - wrong parameter disable expression - BakerTool: tool icon is missing **V-Ray** - V-Ray 6 - do not force BF/BF for GI in V-Ray 6 - "Force Objects" ignores volumeGridCache - Fog Effect - wrong labels in "Options" folder - Wrong Interface license is being engaged in V-Ray 6 beta builds - Can't Pack a Scene with V-Ray 6 for Houdini 19.5.403 - V-Ray Enmesh: replace "core" enmesh with the HDA - ObjectPropertiesSOP: overriten properties are ignored - Can't Load V-Ray 6 for Houdini 18.5.759 - Pack Scene command throws an error with latest builds - Pack Scene option throws an error with Houdini 19.0 builds - Physical Camera - do not gray out Center Bias and Bokeh control when Bokeh blades control is disabled - VrayDeadline ROP: command line args are not provided to Deadline Job - VrayDeadline ROP: error messages printed when submitting a job - BakerTool: uv attribute name has no effect - VolumeVRayToon: asterisk as exclude list inverts exclude type - Displacement: lack of details when "view dependent" is OFF - Displacement Bounds are not computed when using an image file sequence for displacement - Pack Scene option breaks when using parameter references - Motion Blur affects image resolution when Screen Window Size options on the camera are non-default - Invalid Plugin ID warning - No scene output when a Post-Translate script is present on the ROP - Decal inside subnet crash - Random crash/hang on start/stop **VFB** - Background Image is not updated when using $F tag for image sequences - "Ignore VFB Settings for Batch" has stopped working on May 31, 2023 - Crash in VFB when quickly switching between saved images in the History by double-click **Viewport** - Missing viewport preview for V-Ray Fur, Decal and Enmesh **Volumes** - PhxShaderCache::raw_vdb_stream wrong ui guide **Chaos Cosmos** - V-Ray 6: Cosmos: Crash / hang after importing 2-3 assets - Crash when attempting to import a Cosmos asset **OSX** - Crash after closing Houdini on Linux and OSX **VRayScene** - Crash when attempting to import material from a specific VRScene ## **Build 6.00.21** *Official Release* Date - Dec. 13, 2022 ### **New features** --- **V-Ray** - Integrated the Chaos Cosmos asset library for Houdini 19 and up, under Windows - Implemented the V-Ray Profiler - Implemented the V-Ray Memory Tracker - Added Adaptive Bucket Splitting - Implemented the V-Ray Enmesh for render-time generation of patterns over a mesh surface - Updated V-Ray IPR for better interactive feedback **Lights** - Added V-Ray Procedural Clouds in the Sun Light - Added "Finite Dome" option to Dome Light - V-Ray Light Cache is now available in IPR - Added "Grouped Lights" option for Light Select AOV - Added "Volumetric Contribution" control for Lights - Added new "PRG Clear Sky" model for V-Ray Sun - Added support for Location/Date/Time in V-Ray Sun **Volumes** - Added Volume Shader "Absorption Color" support - Added Volume Shader "Phase Function" (anisotropic scattering) support - Added support for Vector fields for the Volume Grid Shader **Materials** - Added Thin Film layer for V-Ray Material - Added new random walk scattering "SSS" and "Volumetric" modes for V-Ray Material Translucency - Added Coat and Sheen layers for V-Ray Material - Add support for exposing parameters on Material Builder VOP - Update Toon Material UI to match V-Ray 6 in Maya **Textures** - Now shipping the "MakeTX" utility with V-Ray for Houdini - Implemented V-Ray Random VOP to generate a random value in the range of 0-1 based on an Float or Color input - Curvature texture can now work either in "Convex" or "Concave" mode - Added input sockets for arbitrary "rest" attributes for the TriPlanar texture **AOV** - Added "Temporal Mode", "Hardware Acceleration" and "Denoise Alpha" options for the V-Ray Denoiser **VFB** - Added "Panorama View" and "Proportion Guides" option for the V-Ray Frame Buffer **Export** - Rest attributes for Alembics are read directly from the ABC file thus reducing export time - Significant time to first pixel optimizations for Alembic and VDB caches **Workflow** - Implemented "Material Overrides" system for Objects under the V-Ray Renderer ROP **Oceans** - Added motion blur support for the generated ocean displacement - Add support for multiple spectra inside VDB - Add support for masks when using ocean spectra - Add support for separate mask geometry input for the Ocean Spectra texture - Add support for Wave instancing - Add support for Ocean Spectra Time Scale and Time Offset parameters - Restructured Ocean Spectra code to improve performance **Rendering** - Add an option to remove resumable file after successful render ### **Solaris** --- **V-Ray** - Add V-Ray support for Solaris Render Region Tool - Add support for USDZ files - Added Plate Workflow support through the V-Ray Environment settings on the Dome Light LOP - Add texture tint/simple color correction controls for Dome and Rect lights - Implemented LPE light tags support for lights in Solaris - Add support for Motion blur based on velocity attribute - Add support for integer PrimVars with User Integer VOP - Add Deep Output support - Add support for "constant" PrimVars in Cryptomatte - Add Camera Overscan support - Add support for writing Cryptomatte data through husk - Add support for live volumes - Add V-Ray Environment Fog - Add Viewport Denoiser Result toggle - Add support for MaterialX position and normal output via husk - Add V-Ray Proxy support with V-Ray Proxy LOP - Add support for native Houdini volumes - Add "V-Ray Render Vars" LOP HDA similar to the Karma standard variables with presets for common AOVs - Add Hair Properties in Geometry Render Settings LOP - Add "Render as Disc" option for points in Geometry Render Settings LOP - Add NSamples/Velocity support - Add Bercon Noise support - Add Deep Output support for VDBs - Add support for Nested Instancing - Add Visibility Settings for Volumes in Solaris - Add Deep EXR options in Render Settings LOP - GPU crash to desktop with instanced geometry - Crash when the shader has wrong input connector type - Combine texture causes a crash - Crash when enabling and disabling the “instanceable” option of the Configure Primitive LOP - Hydra delegate crash to desktop in CentOS - Scene import (All) crashes in Python in Houdini 19.5 - Crash to desktop with new GeomInstancer plugin - Meshlight causes "EXCEPTION IN CORE" - Crash when toggling any of the Render Geometry Settings LOP options - Light Linker not working - Preview shader is rendered grayscale - Linux only - Switching BRDFs inside the V-Ray Material Builder does not update the Viewport - Randomizer VOP does not work - Mismatch between Karma and V-Ray renders for points with “pscale” - V-Ray skips point with index 0 when rendering points - TexUserScalar does not work - Opacity of V-Ray material is not working when color output of ImageFile VOP is used - PrimVars/User Color on points is not rendered - Invisible parameter state of lights is ignored when changing delegates - Velocity blur for Volumes is not working - Remap texture does not work in "Color" mode - Impossible to select anything in the viewport when V-Ray is set as the Viewport Renderer - Adding a dot in the shader graph breaks the shader - Mesh Light Texture is not used or exported to the VRScene - Expose "Max. MipMap Resolution" in the Render Settings LOP > Options > Textures - Some parameters are not taken into account when saving Deep data - Missing "Affect Reflections" toggle on V-Ray light properties - Light material with "Direct Illumination" enabled does not update color changes in the Viewport - Displacement isn't present in final render through husk - Wrong default value export for "Preserve Map Borders" parameter when using subdivision - Hair when "Use Embree" is disabled is missing from the final render through husk - Chaining Switch VOPs does not work - Memory leak with husk and specific scene - LPE render var settings are not exported - Change render var format to color3f for color elements in VRayStandardRenderVars LOP - Image File VOP always uses "Inverse Gamma" as "Transfer Function" - "Use" options for Environment settings from Dome Light for GI/Reflect/Refract/Secondary Matte are not considered - Spotlight angle does not match Karma - Spotlight softness affects only shadows but the light borders are always sharp - Integer attributes are not supported - Material Output VOP does not trigger an update in Houdini 19.0 - Missing vertex, face and normals lists for reference mesh when importing alembics with rest attributes - Vector primvars are not picked up - Render Settings LOP fails to load V-Ray UI due to ds file typo - Different color mapping between render passes - "Override Settings Globally" for Displacement is not working - Displacement VOP parameter "Use Global Settings" is ignored - Remap texture in "Float to Color" mode does not work with Blend material - Geometry goes missing after switching delegate from V-Ray to Karma and back to V-Ray - Viewport selection doesn't work - Overscan is not saved in husk's output EXR - V-Ray Remap node adds gamma shift - Empty viewport/render after switching delegates - Add OSL support - Pixel shift when rendering with overscan or using region render - Denoiser does not work - Wrong render region top coordinate - RenderVar sampler:pointReference not rendered for hair - Volumes rendered to disk through Husk have no emission - Wrong transforms in Hydra with specific USD scene - Coat and/or Sheen element breaks all the elements when render to MPlay - Hydra USD wrong render - "darg", "earg" and "targ" parameters for volume shader are not exported to USD - Error when V-Ray delegate is started on scene open instead of OpenGL on Linux - Parts of the geometry are missing when rendering via Husk - Volumes are not rendered because the cache path is not passed to PhxShaderSim - Vector Operations VOP does not export vector_a and vector_b parameters - Exposed the Extra Tex "force_32_bit_output" in the V-Ray Tab if sourceType is primvar for a RenderVap LOP - Added standalone precompiled V-Ray 6 USD builds - The AOV Bind VOP can now be used without a "bind:" prefix in the RenderVar LOP - Fixed Karma hanging on sequence renders when V-Ray is installed - Crash when Mesh light is present in the stage - Crash when changing the render flag from a MaterialX to a V-Ray material library LOP - Changing the display flag from a Mesh light to its source geometry causes a crash **MaterialX** - Add support for MtlX Adjust as HSV to V-Ray - Add support for MtlX Range - Add support for Mtlx Burn - Add support for Mtlx Difference - Add support for Mtlx Screen - Add support for Mtlx Dodge - Add support for Mtlx Minus - Add support for Mtlx Disjointover - Add support for tan function for vector3 and vector4 - Add support for sqrt function for vector3 and vector4 - Add support for sin function for vector3 and vector4 - Add support for log function for vector3 and vector4 - Add support for floor function for color3,4 and vector3,4 - Add support for exp function for vector3 and vector4 - Add support for Mtlx Divide - Add support for cos function for vector3 and vector4 - Add support for ceil function for vector3 and vector4 - Add support for asin function for vector3 and vector4 - Add support for acos function for vector3 and vector4 - Add support for Mtlx Overlay - Add support for Mtlx Plus - Add support for Mtlx In - Add support for Mtlx Mask - Add support for Mtlx Matte - Add support for Mtlx Out - Add support for Mtlx Over - Add support for Mtlx Sign ### **Modified features** --- **Alembic** - Add support for SOP and OBJ level transform for Alembic primitives piped into a Mesh Light - Add support for Object Properties "Geometry Samples" for per frame particle Alembics with multiple subsamples **Chaos Cosmos** - Ability to re-import the same model from Cosmos browser without using the same node - Keep the last imported object's node selected **IPR** - Assigning a material to many objects while IPR is running is very slow and blocks the UI - Update V-Ray Softbox texture changes in IPR - Changes to geometry added as a gizmo for Fog effect causes the fog to disappear in IPR - Isolate for IPR in Light Lister does not show its status and it is impossible to find isolated light in a big list of lights - Add support for IPR Progressive spiral pattern similar to May and Max plugins - Remove V-Ray IPR ROP node - only keep Renderer ROP node - Export IPR "GI Depth" 16 bounces if V-Ray Material with Translucency mode SSS is present - Decouple IPR updates for surface and shader so e.g. displacement shader is not updated when changing the surface shader **Lights** - Dome Light - hide Adaptivity parameter and enable Adaptive Dome by default - Light Mix - add support for HDAs when the light parameters are exposed at the HDAs top level - Light Mix - add "Name" parameter for Grouped lights mode - Set /obj V-Ray light node shape to 'light' and color to yellow on creation **Materials** - Hide the Volume Shader "Scale Opacity by Scene Units" option under Smoke tab - Disable "Compensate Energy" for Hair material by default - Rename "Use Subdivision from Material" to "Use Displacement from Override Material" - Pick Velocity Blur Multiplier fix for Volume Grid Shader for single vector fields - Update V-Ray Material Translucency parameter names when Type is changed from "SSS" to "Volumetric" - Set V-Ray Material Reflection and Refraction depth to default 8 - Hide "Multiply by Particle Age" toggle on the Foam shader - Add support for VRScene material overrides with Rayserver Instancer and Pattern ID texture through "scene_name" shader override - Support SOP level material assignment to volumes - Extend shader import to support custom plugins - Expose input texture slots for "depth" and "amount" parameters for V-Ray Material Translucency - Add support for camera shaders to Physical Camera - Add support for exclusion flag in Material Overrides object list - Add support for bundles in Material Overrides object list - MtlX Switch to V-Ray - Removed the "From Bump" option for bump mapping through the V-Ray Material or Bump Material - Add support for Cryptomatte by Material Path **Textures** - Rename new sky model to "PRG Clear Sky" from "Improved" to match V-Ray for Maya - Missing import for Tex Float Correct - Add UV mapping tab for V-Ray Procedural textures with some UVW presets - Remove "Lighting" mode from Gradient Ramp texture - The TriPlanar texture now has input slots for the "frame_offset" and "texture_rotation" parameters **OSL** - Changing OSL code wipes all parameter values **Volumes** - Update the Foam Shader UI - Delete old Volume Shader ramps code **Rendering** - Expose "Minimum Shading Rate" parameter on the Renderer ROP - Expose "Metalness" and "Roughness" render elements - Add "Ignore Render Region" option under Renderer Export tab "Batch Render" section for VRScene export - Export proper Foam Shader "Advanced" tab visibility options when particles are in ROP node "Phantom" list - Set "oprelative" to "/obj" instead of "." for V-Ray Renderer ROP - Add option to set Renderer's "RGB Color Space" based on an environment variable - Add support for animated textures in the "Render Mask" option of the Renderer ROP - Add Renderer ROP option for multiple shader overrides for multiple object sets based on the Pattern ID workflow - Add a Render Settings Lights option to "Disable Light Visibility" with an operator list for specifying the lights to affect - Export the smoke volume to VRScene even if rendering of smoke is disabled to ensure the transform is inherited from the smoke field - Match default render settings with V-Ray for Maya and 3dsMax - Removed ".vrimg" extension and Progressive sampler checks for "Resumable Rendering" options - Expose "Remove .vrimg on Render End" option in Renderer GUI - Add support for exposing parameters on Material Builder VOP **V-Ray** - Forbid loading of VDBs in the Volume Grid Cache SOP - Update Image File VOP defaults in V-Ray 5.2 - 2D displacement per primitive needs to be supported by V-Ray. - Add support for Houdini 18.5.759 - Dirt "Consider Same Object Only" option produces different results when used with packed primitives vs mesh geometry - Improve message for failing to find .vdb and writing raw data - Change default image file filter to "Sharp MipMap" for Image File VOP - Update Physical Camera Cinematic Shutter Offset/Angle default ranges - Change "VRScans" name to the "Chaos Scans" - Improve ACEScg workflow in V-Ray for Houdini - Update "Max. MipMap Resolution" parameter range - Reduce DWAA EXR compression RAM usage - Update the "Back To Beauty (Advanced)" AOV preset to ensure proper results automatically - Old scenes with physical camera show warning for missing parameters - Update V-Ray Renderer ROP shape in the palette **Exporter** - Speed up export of instanced VDBs - Add optional warning for exporting large live geometries on export - Speed up VRScene export for instanced geometry - Modified VRProxy export path to match the path user attribute as object path if available - Add support for exporting Decal displacement texture for each decal object - Change the export for Material Output AOVs to use the PatternID and MultiID textures **Installer** - Remove installer python logic in favor of Houdini's houdini_python keyword in packages - Add method for accepting EULA when installing V-Ray with the ZIP builds - Prevent installing over running V-Ray if Houdini or Husk are running - Updated the installer images for the official V-Ray 6 for Houdini release - Display a warning if the user is attempting to install mis-matching VRay/Houdini versions **VFB** - Add support for VFB control through environment variables **GPU** - Added support for rest attributes for the TriPlanar texture **Instancing** - AOV Bind: "instance" node not shown - Implemented a faster instancer plugin **V-Ray Decal** - Add support for VOP nodes as Decal Stencil - Added displacement amount and shift controls **UI** - Remove "Auto Transfer Function" toggle and script from Image File VOP ### **Bug Fixes** --- **IPR** - VFB2 isn't updating the V-Ray Log information - Debug flag does not work when a VOP node inside a Material Builder is assigned to the geometry - Animated Ocean Spectra Mask is not updated on frame change - Exporting a VRScene in "Export" mode directly after running IPR causes empty standalone renders - Renderer "Override Camera Resolution" option changes do not update IPR - Referenced Shader changes do not update IPR - Parameter changes for nodes inside Material Builder piped into Multi ID material do not affect IPR - Material Override when using Distance Texture is lost when starting second IPR session - Persistent updates or crash when changing a Volume Shader parameter assigned at the SOP level - Render Region disappears on Production render or IPR start - Material Overrides are lost when changing the Timeline frame during IPR when Extra Texture with the override object in its Exclude list is present - Removing a Decal object from the SOP network does not affect IPR - No updates for displacement assigned at the SOP level to Alembic primitives - Renderer ROP Objects list does not update IPR - Deleting objects or lights does not affect IPR - V-Ray Proxy SOP is not updated in IPR - Geometry goes missing during IPR if there are nodes that are linked to the camera transforms in the scene - Lost ExtraTexture elements after the first one, on frame change, and if they have the same object in Exclude List - Material assignments for Multi ID Material are lost when using an input Material Builder instead of BRDF - Slowly generated mesh is not updated - No update when enabling/disabling the ROP Material Override options - Geometry that is hidden when IPR is started remains invisible even when unhidden during IPR - Unnecessary refresh when changing folders on a BRDF node - Renderer Camera settings do not update IPR - Viewport does not update view changes - Light Instancer not updated - V-Ray Object Properties are not updated in GPU IPR - Rendered objects would occasionally disappear when making changes to their geometry or adding additional objects to the scene - Material assignments are ignored in for the entire scene if a debug flag is present on a VOP node - Displacement per primitive not always updated in IPR - "Render with Take" uses the correct take then refreshes and reverts to Main during IPR - Toon Effect is updated in IPR only once - Any changes done while IPR is running cause the Fog effect to disappear - IPR update broken in 5.x for Light Instancer - Velocity blur is not updated when changing "Shutter Speed" of Physical Camera - Sun parameters do not update Sky texture for IPR when used in a Dome Light - Hang if VFB IPR button is clicked multiple times before IPR starts - Crash with partitioned alembic when using Motion Blur and Displacement - Crash with Alembics using Displacement and Material AOVs - Random crash during IPR or when attempting to start a production render - Crash when toggling on/off the Mesh Light's "Use SOP Geometry" option - Crash when changing the "Motion Blur Multiplier" on the Volume Shader - Setting "Screen Window Size" to negative during IPR crashes V-Ray and Houdini - Crash when starting IPR first then Production Render if "Cache Bitmaps" is enabled - Crash when disabling the V-Ray Physical Camera during IPR in "Render View" or Viewport - Crash if starting a production render after an IPR session - Crash in IPR when modifying the render region while scene changes are synced - Debug flag on Referenced Shader VOP has no effect in IPR - ROP Render Scripts are not executed for IPR - Settings for displacement coming from Override Material do not refresh in IPR - VFB Render Region does not work if you start IPR when it is disabled - Constant updates for volumes when changing shader params if Motion Blur On and rendering the last file in the VDB sequence - Enabling motion blur is not handled during IPR - Decal displacement is not handled by IPR - Imported VRScene ignores changes to Objects visibility list - Disabling a light's Node visibility flag during IPR will incorrectly disable the light **Rendering** - OSL crash when redrawing UI after render - Crash with Light Mix on render start - Crash rendering groomed fur/hair with V-Ray - Crash when attempting to render a volume without volume shader assigned to it - Karma hangs on GUI sequence renders when V-Ray is installed - Freeze on production render start with Rayserver Instancer and Displacement - Crash if render is quickly started, stopped and started again multiple times - "-imgFile" flag for standalone rendering causes double output - VFB is brought to foreground on every frame when rendering a sequence, even when Houdini is minimized - Wrong frame token exported when using $F4 tag for textures - Per-primitive displacement does not render correctly - Add support for vray_renderable packed attribute - Texture for Dome light is not exported when using a referenced Image File VOP - Geometry nodes in an Object network inside a parent Geometry node are rendered even when the parent Geometry node has visibility disabled - Color AOV name expression is not evaluated for VFB - Material Overrides do not work for more than one object in pattern list - Forced hidden object with material override does not have material in render - Overscan disables render region - When using shader overrides with VRScene SOP the render becomes darker - NUMA slowdown when rendering Alembics - Double camera export when using a Switcher to change the render camera per frame - VFB Render Region in viewport is not always rendered - Render Region resizes unproportionally when Camera Resolution is increased - "Visible in Refraction" causes wrong render output when a glossy material is present - Baked volumes in VRScene produce empty renders in some frames - Render Mask in "Object" mode does not work - Physical Camera missing "specify_focus" export causes wrong DoF renders - Crash rendering groomed fur/hair with V-Ray in a specific scene - Freeze on production render start with Rayserver Instancer and Displacement - Immediate crash when pressing Render after upgrading to MacOS Big Sur 11.2 - Standalone - wrong frame loaded for Alembic in Distance texture when rendering with -frames argument - VFB Compare settings are lost when starting a new render - Wrong render in Houdini with TriPlanar texture applied to Alembics with rotation in Y - Missing texture animation export for particular scene on first export, if no GUI render is initiated - Empty render for live volumes when Motion Blur is enabled - Alembics exported with object level transforms have double transformations when rendered - Volume emission not rendered in Beauty ("C.*")LPE - Randomly missing UDIM textures with specific scene **GPU** - V-Ray Material Translucency parameters are grayed out for GPU but should not be anymore - Wrong Light Linking export for GPU - Matte Surface not working in GPU render for poly geometry - Lighting discrepancy between CPU and GPU results when Direct light is used with Intensity higher than 1 - Square artifacts on using Adaptive Dome light on GPU - CPU instead of RTX mode is started - Image sequence as texture not rendered on GPU - Attributes for shading with User Color and User Float do not work for Alembic hair and particles on the GPU - Freeze with specific volume when using GPU - Crash with a specific setup including V-Ray UV Explicit and BerconNoise - Extra Texture AOV include list does not work for particles - TriPlanar texture with rest attributes does not work for live geometry and Alembics - Missing bitmap color difference between CPU and GPU - Color Correct (Maya) texture is not exported to .vrscene when GPU is chosen - Crash when rendering a mesh with attributes sampled in the shader and motion blur enabled **V-Ray** - In a newly created blank scene using certain python code provokes a crash - Crash with Light Mix "To Scene" option when using lights that are not inside an HDA - Crash in a specific scene with adaptive lights - Crash on Python module load on Linux - UDIM tag in the output image name is missing when baking a single UDIM tile - Fixed an OCIO slowdown in 5.10.20 - Decal include and exclude lists work on single objects only - multiple objects are ignored - Wrong filename output when using an expression sampling a point attribute with Python - Add support for time-dependent values for image output file name and folder path - State of "Enable Large Mesh Warning" toggle is not saved - Camera motion blur not working with specific builds - Difference in Ocean surface render compared to Mantra - Empty export for "Exclude List" in Extra Texture AOV - Wrong default values for OCIO texture - Wrong output for Remap texture in "Value" to "Value" mode - Object Properties SOP overrides own settings when chained in a Geometry network - Wrong animated visibility output for objects - Swapped logic for "Use Main Line Controls" toggle - Set "Adaptive Dome" to enabled by default for Dome light - Object Level transformations are ignored for Motion Blur when "Use Velocity Blur" is enabled - Displacement does not accept negative "Amount" values - Environment Fog does not work with specific builds - "Geometry Samples" option for Motion Blur for Points has no effect - Fixed issue causing truncated paths when over 255 characters are used on Linux - Wrong output for Integer to Float texture - Added support for per-face string attribute sampling with the PatternID texture - Added support for V-Ray Scenes for Texture Baking - Added support for Cryptomatte by attribute for crowds - Wrong output for Multi ID Texture when using "Round to Integer" option - Fixed Volume Grid Cache SOP is ignored by Renderer "Force Objects" list - Fixed Python issue causing empty "About V-Ray" window - Updated the V-Ray EnMesh SOP with a custom HDA to simplify setup - Overridden properties for Object Properties SOP are ignored - Translucency Depth is changing Fog Effect in the opposite way - Non planar faces produce bad UV tiles when V-Ray subdivision is applied to the geometry - Cryptomatte by attribute does not work for crowds **VFB** - Light Mix in "Manual" mode does not pick up Light Select elements - Do not tint RGB channels when displaying them isolated - ".cube" files specified in the OCIO config for the OCIO View Transform are not used - Background layer does not work - Using an EXR as Background image with "As Foreground" enabled causes the image to go black - If you save the .hip file for the first time in the current session "Use Project Path" doesn't enable VFB History - Crash with the VFB Stamp layer **Lights** - Light Lister "Isolate" button does not work - Light Select wildcard "*" for lights parameter returns all scene nodes causing a slowdown with heavy geometry - Light Mix - Dome Light "Intensity" and "Color" are not updated when inside a locked HDA - Light Mix crash when attempting to send the changes "To Scene" if the lights are in a locked HDA - The V-Ray Sun clouds_phase_y parameter is not used at all - Added LPE light tags support - Added support for Mesh light with multiple meshes as source geometry **Materials** - Material Library download fails if the provided disk path does not exist - Cryptomatte by material ID and material HDA - Displacement is not overridden when using multiple Material Overrides on the Renderer ROP - Parameters set with textures for OSL Material are ignored - Wrong material assignments when using animated Switch node and uploading to Chaos Cloud - Enabling Motion Blur breaks Material Overrides - Add support for Null VOP for Referenced Shader - Unlocked Depth and Scale Max value for V-Ray Material Translucency - Lag in V-Ray Material Builder VOP context when opening the nodes menu with Tab or RMB click - Add support for pattern based material overrides on the Renderer ROP through Pattern ID texture - Disabling "Primary Visibility" for object with Light material does not work - ROP's "Disable Light Materials" does not affect Light materials with Direct Illumination enabled - Material Override is applied to Mesh Light when using wildcard flag for selection - Enmesh material ignores custom attributes - Crash with material overrides enabled when a light is present in the scene and using a wildcard flag - Hang during Light Cache step when using Decal, Rect Light and Diffuse BRDF - Crash with HDA holding Volume Grid Shader VOPs made in 4.3 when loading the HDA in V-Ray 5 builds - Wrong UI disable index for V-Ray Material "fresnel_ior", "translucency_color" and "fog_color_tex" inputs - V-Ray Materials SSS produces faceted shading with low poly geometry **Textures** - Import of Remap texture selects "color" output regardless of what input it is connected to - Empty drop-down for OCIO tab in Image File VOP - OCIO node is missing input texture slot - Distance Texture Objects list is empty when a Subnetwork is specified - Some TriPlanar texture options do not work - Image File VOP "Transfer Function" parameter is ignored - Distance Texture ignores animated transform of target object - Update User Float and User Integer default attribute names - Wrong gamma applied to textures in Dome light when using ACES - Very small triangles are ignored when Texture Baking which causes artifacts - Adding an object to the Distance Texture "Exclude List" will disable its visibility globally - Creating a new layer for a Layered Texture does not create an input connector for the mask/blend parameter - TriPlanar texture into bump does not work when bump_type is "Bump" when used with rest mesh or rest attributes - Displacement via V-Ray TexTriPlanar results in holes in the geometry with specific scene - Very small triangles are ignored when Texture Baking causing black artifacts **OSL** - Particular texture file UI is not loaded - Warnings printed with specific scene with OSL - UI is not loaded for a specific OSL texture file - Chaining of OSL textures does not work with float parameters - Instant crash when try to load particular ".osl" file - Crash with particular OSL file both when loaded from disk and used as inline code **Alembic** - Expression including frames and subframes on Alembics isn't working as expected with V-Ray Core 5.10.20 - TriPlanar swimming coordinates when using "rest" attributes with Alembic file - Double motion blur for Mesh lights using Alembic as source geometry - Material Overrides do not work for multiple Alembic objects - Poor Cryptomatte element sampling over overlapping multimaterial Alembic when using Depth of Field - Triangular artifacts on packed Alembic when texture Filtering type is not set to None or Nearest - Primitive attributes are ignored for splines/hair - Add support for velocity sampling even when using single-file deforming Alembics - Primitive hair attributes are not interpolated correctly for Alembics - Shading artifacts with Random VOP when using float attribute in Alembic file - Crash in V-Ray Core with Alembics, Motion Blur, Subdivision and V-Ray Material Bump map - Attribute "uv" for hairs in Alembic file can not be sampled for shading **Volumes** - Possible crash when shader for volume is not a Volume material - Immediate crash when Denoiser and Volume material with the Volumetric Z-Depth parameter set to 'Separate V-Ray Element' is added on volumes - Crash when trying to convert particular VDB with the V-Ray VDB to AUR node - Immediate crash when importing big “.aur” files in V-Ray Volume Grid Cache **Instancing** - Orientation of instances calculated from @N or @N + @up vectors is wrong - Invalid velocity handling for Rayserver Instancer when using Motion Blur - Shadow artifacts with Rayserver Instancer - Crash with SSS and multiple instances when using new instancing plugin - Crash with Light Instancer with scene containing 250 000 lights - Massive hair instances strand length crash - Crash with Decal Displacement when applied to geometry in Instancer2 plugin - High memory usage and geometry compile time when using Alembic with instanced shapes instead of ".vrmesh" **Exporter** - Remove file exists check when exporting packed disk primitive volume by path to speed up VRScene export - Slow VRScene export time for instances with Motion Blur - Slow export of animated cached VDBs - Very slow export and high memory usage for Mesh Light using deforming alembic as source geometry - Wrong export for frame($F2) token in texture path - Channel string reference for VRScene Export path on Renderer ROP with frame token causes wrong export - VRScene export for per frame Alembic files with time offset is not animated - Export Mesh Lights generated by Light Material with "Direct Illumination" enabled to Light Select element - No VRScene export for animated objects after first frame when Motion Blur is Enabled - Empty plugin export for Extra Texture element - Empty parameters export for Distance Texture - only Objects list is exported - Empty export for Renderer Image Sampler parameters - Float to Color is always exported, even when the float output is connected to a float input - Light Instancer is not exported when texture baking - Distance Texture object is not exported if part of an Override Material - Wrong Displacement export for "Vector Displacement" assigned through Material SOP at the SOP level - VRScene export - missing material AOVs with Alembics and Motion Blur when Offset is 0 and Duration is 1 - Only first frame is exported to VRScene for animated objects in Distance Texture list if their visibility is disabled - Reflect/Refract mask are exported incorrectly - Crash if you use VRScene Shader Overrides without typing Scene Name - Material Overrides are lost for VRScene export after the first frame - "Clip Mesh" parameter for V-Ray Clipper is not exported - No export for Image File OCIO tab - Animated shader parameters are not exported for static meshes - Proxy Export not working in latest nightly builds - VRScene export for Mesh Lights with Alembics only uses the first frame of the sequence - Issues with Proxy export and particles - Multi-valued params are not exported - Light Textures - frame ($F) token is exported in the file path instead of evaluating the expression - Wrong export for Image File VOP into Layered texture causes no color output - Wrong UV set export for Image File VOP when exporting a .vrscene - When Mapping of Procedural textures is set to UV, parameters are not exported to .vrscene - Object Scale for V-Rya Enmesh is always exported as 1.0 - Multiple plugin exports when generating per frame VRScene files - Crash on last alembic frame export when motion blur is enabled and using per-frame alembic files - Empty export for Extra Texture element - Hang after second V-Ray Proxy export - ".vrscene" file path is truncated to 256 characters on Linux - Stray points are exported both as vertices for GeomStaticMesh and as particles for GeomParticleSystem - Wrong Image File VOP transfer_function export when OCIO is enabled on Image File VOP - Mac: Exporting animated proxy into a single file would occasionally cause Houdini to become unresponsive **VRayScene** - Incorrect import of Remap Texture from a VRScene file exported from Maya - Incorrect import of volumeNoise (3D noise) from a VRScene file exported from Maya - VRScene "Unpack to Polygons" does nothing if a node named "vrayscene_unpack" is already present in the same SOP network - VRScene "Unpack to Polygons" does not create a material network - Crash when importing materials from .vrscene **Installer** - Issues with silent installation + config.xml - Houdini 19.x can't open local help when V-Ray is installed due to QT lib errors - License server is no longer installed unless specified - Font color and background are the same in the new Installer on Linux **Chaos Cosmos** - Update the packing script to ignore the missing Cosmos files - Cosmos Browser window does not store position - Assets import is creating overlapping nodes - Models are imported mirrored by X axis **OSX** - Crash on start with Houdini 19.5.303 **UI** - Removed Hair Properties *Use Global Hair Tree" controls - Displacement Properties shelf tool does not work - Crash when clicking on the "Transfer Function" menu of the Image File VOP in Houdini 19.5 **Ocean** - Ocean Spectra Texture fails when using "Filter above resolution" option - The Ocean Spectra texture with motion blur produces slightly different displacement than without motion blur - Frame token for Ocean Spectra texture does not work