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Table of Contents

Build 6.20.05

Official release, Update 2

Date - Feb 15, 2024


Download V-Ray for Houdini



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 <frame04> 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 - <frame> 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