V-Ray 6

• Ability to combine randomization options in VRayMultiSubTex

• Added "by user ID" random option in VRayMultiSubTex

V-Ray IPR

• Light cache support option for IPR

V-Ray GPU

• New GPU device selection tool

USD

• Support for VDB shaders in USD

• Add support for MayaUSD versions up to 0.19

Chaos Cloud

• Non-blocking Cloud export in the background (Windows only)

VRayEnvironmentFog

• Faster light shading in fog

• Faster textured fog with probabilistic shading option

VRayVolumeGrid

• Added support for light depth sampling in the volume grid

• Phase Function control in Ray-Traced Scattering mode for the Smoke Color allowing to render realistic clouds with V-Ray CPU

• Velocity and Normals render elements in Volumetric mode with V-Ray 6 CPU

• Cryptomatte and Multimatte render elements in Volumetric mode with V-Ray 6 CPU

•  New "Volume Motion Blur" option allowing to choose between Ray-traced and Grid-based methods - the Grid-based method creates more visible streaks for fast moving fluids

   

Modified Features

Installer

• -unpackInstall option to produce portable installation instead of separate zipped install
• Added all V-Ray for Maya environment variables to the module file for easier portable install deployment
• Changed default installation paths to be outside the Maya folder, matching portable install folder structure
• Use online changelog
• Embeded the Chaos Unified Login
• Stop downloading the material library from the installation

• Use dedicated icon for VRayProxy in the Outliner

Chaos Cosmos

• Added support for Cosmos procedural materials and Cosmos-based material library

VRayMtl, Viewport 2.0

• Viewport quality presets for VRayMtl
• Add support for the V-Ray 6 VRayMtl features in the Viewport 2.0 shader
• Support for Normal and bump maps with V-Ray materials in Viewport 2.0

V-Ray GPU

• Added a new Samples Limit quality control that replaces the min and max subdivs for GPU
• Auto-upgrade old scenes to the new Samples Limit control
• Synchronize CPU bucket settings with the new samples limit GPU settings
• New Device Selection options
• Moved the RTX engine selection to the new Device Selection options
• Add denoising options and per-device low thread priority in the GPU device select
• Exposed the Global Material Overrides for V-Ray GPU
• Improved the Trace Depth workflow
• Support for "Affected by" in VRayDirt
• Implement auto bump mapping for smoothed and displaced meshes
• Autovoxelize dynamic geometry in V-Ray GPU

V-Ray

• Optimize memory consumption by not subdividing objects that are far away from the camera
• Redesigned the V-Ray Shelf and Material icons
• Added a Shadow Catcher functionality to the V-Ray shelf
• Added a search filter in the list of available render elements
• Added an option to always write the frame number to the output file even for still images
• Allow vfbControl MEL command in batch mode
• Ability to prevent proxy import when drag-and-dropping in Maya through VRAY_DISABLE_DRAG_DROP_FILEEXT envvar
• Use float controls for the explicit displacement bounds values
• Added a C++ API for exporting simple parameters for third party translators
• The VRAY_FOR_MAYA_SHADERS environment variable can now be used by third-party devs to point to additional extra attribute txt files
• Add fit aspect ratio to material/bitmap functionality for VRayDecal

USD

• Added support for dynamic USD plugins
• Improved USD material importer UI
• Export VRayMtl as V-Ray material and USD Preview Surface
• Improve error handling and add help to the vrayExportUsdMaterials command
• Assume -chaser "vray" flag when using mayaUSDImport command

VRayMtl

• Added a Soap Bubble material preset
• Hide the double-sided option in VRayMtl

Material Importer

• Add VRayMultiSubTex support in importer

• Add native support for MtlGLSL in importer

VFB

• Added a "Show in folder" option to the VFB History context menu
• Added functionality to select lights in LightMix
• Better visibility of the A|B line in the VFB
• Add menu items for enabling/disabling history and layers
• Mark the scene dirty when making changes to layer compositing in VFB2

LightMix

• Added options to include the Rest channel when saving to file and to Denoise the Light Mix

Denoiser

• Expose temporal mode option for NVIDIA denoiser

V-Ray ExtraTex

• Added a custom background color option in VRayExtraTex render element

V-Ray IPR

• IPR should stop sampling after reaching the noise threshold

VRayEnvironmentFog

• Аdded an Affect Alpha option for VRayEnvironmentFog

VRayMtl, VRayBumpMtl

• Hide Local space bump map mode for BRDFBump and BRDFVRayMtl

VRayLightDome

• Restored the Ray Distance options for the Dome light

VRayTriplanar

• Added VRayTriplanar option to use displaced surfaces

VRayOSL

• Support OSL camera shaders

ChaosCloud

• Allow direct cloud submit with no project selected

VRayDecal

• Animatable VRayDecal parameters

VRayProxy

• Correctly apply proxy material overrides in the viewport
• Limit number of faces per voxel to a sensible number

XGen

• Enable parallel XGen export

Viewport IPR

• Rename Viewport HUD label from VRayRT to VRay IPR

VRayVolumeGrid

• Sped up rendering of grid volumes with up to 25% when Fully Visible Fire or Volume Light Cache is used

• VRayVolumeGrid: Sped up rendering of grid volumes with up to 10% when the RGB channel was used

• VRayVolumeGrid: Smoke Opacity modulated or replaced by textures will show in the GPU Preview

Bug Fixes

V-Ray

• Fixed a crash on macOS Monterey caused by exceeding the OS max file handle limit
• Fixed old scenes randomly using OCIO Display correction when rendered in batch
• Wrong viewport preview for TX textures from Cosmos on macOS
• Fixed memory tracking results discrepancy for "Texman" and "Tiled bitmap"
• Wrong font on installer on MacOS
• VRayTexOCIO Maya node crashes when used with Maya software renderer
• VFB2 OCIO display corrections not synced with Maya in batch
• Reflections computed in fully diffuse VRayMtl materials
• Time reported by the progress for "Compiling geometry" is incorrect in Standalone
• Memory leak in TexLut
• Memory leak when saving multichannel/multipart OpenEXR files
• TexLut fails to read file on Linux when the path is specified with backslashes
• BitmapBuffer: <frame0*> tag support

• VFB2 OCIO display correction not found with Maya batch on Linux

• Wrong vrscene lights export when combined with "Separate files" option

• Print a message for unsupported Chaos Cosmos Browser for Maya 2019 on both Linux and macOS

• Ray derivatives are not computed for perfect refractions

• Incorrect reflection on objects with motion blur and vray subdivisions

• Recalculating bloom/glare lens effects produces artefacts on Linux

• Error when selecting "Lens File" Distortion type of V-Ray Physical camera in IPR

• Standalone installation cropped UI on HighDPI MacOS

• Standalone installation cannot start a distributed rendering server on macOS

• Log typo in Estimated time remaining line

USD

• Fixed endless warnings for USD export material with UV linking
• Importing V-Ray materials via mayaUSDImport does not work with MayaUSD 0.16
• Invalid handling of instanced non geometry primitives
• Show the warning for unsupported USD versions during render
• Physical camera from USD scenes are imported with Depth of Field enabled
• Mismatch with displacement in Houdini
• Correctly export VRayMtl bump type as integer USD attribute
• Importing USD scenes with usdPreviewSurface material is rendering wrong
• Crash when rendering VRayMtlGLSL in USD scene with GPU
• USD scenes with textures are imported black in Viewport
• Crash when importing USD scenes with the -shadingMode flag and USD 0.15
• USD scenes with particles are imported wrong in Maya Viewport
• Locked camera parameters when imported from USD
• Crash when importing specific USD scene with bitmap
• Crash when importing USD scene with VRayPhysicalCamera through MEL command
• Transform mismatch with Skel USD file
• Unsupported shader parameters in USD
• Fixed USD with VDB in IPR crashing on transform

V-Ray, VRayTriplanar

• Wrong Normals when object has Triplanar mapped displacement and is a Texture Reference Object

V-Ray GPU

• Clipped light geometry when 'Clip lights geometry' option is disabled and non-light geometry is in front of lights
• Wrong VRayClipper material on clipped VRayLight objects when set to Use object material
• VRayPhysicalCamera: Rendering on GPU with Depth of Field prints errors in the Log Window

XGen

• Fixed XGen button label on high-DPI displays

Material Importer

• Nodes connected to Thin Film attributes don't get imported in Maya

USD, Material Importer

• Specific Skel USD scene is not rendered

VFB

• The persistent VFB setting to resize on resolution change does not persist
• The VFB2 test resolution button isn't reflecting the current resolution if it's enabled when re-opening a scene
• The VFB history option to copy the scene path also copies the project path

V-Ray GPU

• Fixed excessive memory usage and low performance with GPU Light Cache

• Crash with Physical camera's position constraint

• Crash when rendering specific alembic particles file

• Some threads never finish with low_gpu_thread_priority=1

• VRayMtl with translucency is not rendered properly after resuming a render using RTX mode of V-Ray GPU and Light cache

• Projections using Spherical camera are not rendered correctly with V-Ray GPU

• Instanced textured VRayLights don't share loaded textures

• Difference in HairNextMtl on surface geometry between V-Ray and V-Ray GPU

• Crash with GPU Light cache subdivisions set to 2000 and sample size >0.1

• Scene with Light Cache crashes if run in parallel on Linux

• Render time difference between V-Ray versions

• Wrong render of VRayMultiSubTex on geometry with motion blur

• Incorrect render with VRayEdgesTex on subdivided geometry

• Out of core related crashes in V-Ray GPU

• Crash with texture baking and geometry with displacement

• Wrong fog color alpha results when refraction set to affect all channels

• The alpha of a transparent VRayMaterial is not working correctly

• Different alpha compared to the CPU and older V-Ray GPU versions

• VrayLayeredTex not working with more than 6 inputs on GPU;

VRayProxy

• Crash when importing specific alembic with particles

• Wrong UV linking with multiple UV sets in VRayProxy

• Textures are not shown in the viewport on some Cosmos assets

• Proxy2 frame transformations not reflected in Viewport 2.0 in Maya 2023

Installer

• AppSDK shipped in V-Ray for Maya installation doesn't work on Linux and macOS

Memory Tracking

• Illegible symbols in memory tracking for Dynamic geometry on Linux

VRayStochasticFlakesMtl

• Differences between VRayMtl and stochastic flakes with reflection glossiness=1

• Outline on objects with VRay Stochastic Flakes Mtl

VRayHairNextMtl

• Missing Color and Intensity in UI for lights created from PluginNode

VRayMtl, V-Ray GPU

• Artifacts on specific scene with VRayMtl SSS translucency

• Wrong render with SSS2

VRayProxy, Cryptomatte

• Cryptomatte's VRay user attribute ID type does not work with alembics in VRayProxy

VRayProxy, V-Ray GPU

• The 'Per instance materials' options for alembics does not work properly in GPU

VRayToonMtl

• Diffuse artifacts with anisotropic reflections and sheen or diffuse roughness

Viewport 2.0, V-Ray GPU

• Rendering artifacts with anisotropy reflections

Viewport 2.0, VRayPluginNodeMtl

• Some Maya materials are imported black in Viewport

vdenoise

• Standalone Vdenoise tool doesn't work with multi-part .exr files