Page History

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New features

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V-Ray

• Add new instancing backend for lower time to first pixel and optimized scene size
• Implement multi-threaded multithreaded "Compiling geometry" step for polygon meshes
• Add Houdini 20: GCC 11 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 SeparetlySeparately" toggle under the Image tab of the V-Ray Renderer ROP
• Add V-Ray Decal Displacement parameters
• Add ability to assing 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 Tri-Planar 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" paramter 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 subnetconnector 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 instancers 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
amont
• 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
overriden
• 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
Rectandle
• 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:
Displacment
• 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:
Costant
• 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
exported
• 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 .
vrsene
• 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
subdivion
• 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
redered
• 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

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