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Build 6.20.06

Official release, Update 2.1

Date – April 02, 2024

New Features

V-Ray

Support for 3ds Max 2025
USD support in Chaos Cloud
USD - support for MaxUSD 0.7.0

V-Ray GPU

Use System Memory mode for texture loading

Modified Features

V-Ray, VFB

Add ability to save Cryptomatte channels separately from the raw image file

V-Ray

V-Ray toolbar's create mesh light button should be disabled for incompatible selections
Support for texture filtering for MaterialX files which use UVWGenExplicit
Improve deletion of selected objects in VRayLister
Add Directional strength for V-Ray Lights in V-Ray Lister

Bug Fixes

V-Ray

Specific frames rendering black in V-Ray Standalone
Crash with Convert bitmap to tiled exr/tx and specific file
Wrong result with VRayTriplanarTex rendering in Standalone
Rendering discrepancy between 3ds Max and V-Ray Standalone with very distant and small disc lights
IPR crash when moving lights in scenes with PhysicalMaterial and emission texture
Failing redirection of missing Cosmos assets for very old scenes
Rename the "Autoswitch to effectsResult" label to "Auto-show post effects"
Crash when linking or unlinking VRayTriplanarTex to VRayBitmap used in ForestPro Material tint while V-Ray IPR is running
Crash on scene reset, when there are 2 or more lights or cameras with an open V-Ray Lister
3ds Max crashes on opening ME if we have Phoenix installed on top of V-Ray
Multiple "V-Ray viewport IPR" items occur in the quad menu
Standalone renders consistent lighting elements incorrectly when having matte object in the scene
RawBitmapBuffer containing .hdr pixels data is not extracted to .tx on Enscape .vrscene import
Slow import of specific Enscape vrscene with more than 240000 nodes
Crash with V-Ray CPU IPR when going from Perspective to a VRayPhysicalCamera with Motion blur enabled and a VRayDenoiser Render Element
Animated V-Ray IES light settings are not exported and rendered with V-Ray Standalone
Warnings for invalid material evaluation with specific scene
Incorrect shading of backfacing geometry when there is Phoenix Simulator, V-Ray Volume Grid or Environment Fog in the scene

V-Ray Bitmap to VRayBitmap converter

VRay Bitmap to V-Ray Bitmap converter do not always replace Bitmaps (UI)

VFB

V-Ray Standalone Qt6 with autoClose=1 never closes

VRayIES

VRayLighting and VRayRawLighting are not always rendered when using VRayIES lights

VRayInstancer

Crash in 3ds Max when rendering Scatter with a hierarchical model which has dummy object in the hierarchy

VRayMtl

VRayMtl's Fog depth parameter stays greyed out when Thin-Walled is active and we switch from SSS to None

VRayPhysicalCamera

VRayLister: White balance gets unexpectedly switched when changing Temperature value for several selected VRayCameras

VRayVolumeGrid

Out of memory Error during building mesh with Phoenix liquid when rendering a scene with V-Ray Standalone on Linux

Build 6.20.02

Official release, Update 2

Date – December 20, 2023

Modified Features

V-Ray

Register V-Ray Lister in the V-Ray application menu
Add MaxScript function to show the V-Ray Lister (vrayShowLister())

Bug fixes

V-Ray

Square Artifacts with adaptive lights after updating to 6.20.00 in specific scenes
Artifacts with Subsurface Scattering and Adaptive Lights in specific scenes
Multiple V-Ray properties items occur in the quad menu when using 3ds Max in languages other than English
V-Ray for 3ds Max Japanese localization - issues in the file filter when picking .IES files in V-Ray IES lights

V-Ray and Vantage

Crash with animated ForestPro objects in 3dsMax live link

Chaos Scatter

Fixed edge trimming for instances of hierarchical/group models (For now edge trimming requires that objects have sub elements)
Fixed problem with high CPU load and slow viewport update on isolate selection
Import scatter preset dialog title correction

Build 6.20.00

Official release, Update 2

Date – November 29, 2023

New Features

V-Ray

Enscape .vrscene importer (Beta)
One-click submit to Chaos Cloud
Integrate Chaos Scatter 4 in the V-Ray installer
Render to texture support for denoising
USD - Support for latest MaxUSD
USD - Implement a workflow for material override
Implement Shadow Select Render Elements
Import IES-type lights from Cosmos
Introduce adaptivity clamp in order to avoid high sampling in overexposed regions of the image

VRayLight, V-Ray Toolbar

New V-Ray lister

V-Ray, VRayVRmatMtl

Native rendering of MaterialX Material types from MaxUSD

V-Ray, MultiMatteElement, VRayScene

Multimatte Include/Exclude list support for USDStage

V-Ray, VRayEnvironmentFog

Add "phase function" functionality to VRayEnvironmentFog

VRayLight

Add Directional strength parameter for blending diffuse and directional distribution for VRayLight

V-Ray GPU

VRayEnmesh GPU support
V-Ray GPU bitmaps caching when rendering animations
Multiply by opacity for VRayLightMtl in V-Ray GPU
Support for 3Ds Max Standard light projection map on GPU
Add support for MultiMatte Render Element on V-Ray GPU grid volume shader
Add support for VRayCryptomatte Render Element on V-Ray GPU grid volume shader

VFB

Post chromatic aberration in the VFB
Add Color to the "Background" layer in VFB

VRayOSL

Color management support in OSL

VRaySamplerInfoTex

Additional info options in VRaySamplerInfoTex

V-Ray, V-Ray GPU

Add support for "Color From Particle Channel"/"Color From RGB Channel" from Phoenix Particle Shader on V-Ray GPU

VRayVolumeGrid

Add a right-click popup menu with a "Clear" action that would unlink connected objects from Node selector buttons in 3ds Max
Optimize the rendering of many instanced V-Ray Volume Grids with V-Ray Standalone CPU
Option to expose the streamline preview as native 3ds Max splines

vdenoise.exe

Add the upscale option to the standalone denoiser tool

Modified Features

V-Ray

Improve ForestPack export for a lot of instances
Optimize ForestPack edge trimming export
Improve .vrscene export of hidden geometry
Improve geometry compiling for subdivision surface objects on high core count machines
Download the missing asset revision used in the project (Cosmos)
USD - 3ds Max should export assets paths with a forward slash
Rendering deep images in progressive mode should save a non-deep image regardless
Improvements for the V-Ray menu Set default MAX V-Ray UI setting
Change the Render Setup's UI modes labels from "Default" to "Basic"
Reveal all the options for the camera types in the Camera rollout
Move VRayProxy's Object hierarchy to a separate dialog
Add a label when there are no cameras in the scene and using the flyout render button in the VFB
Scripting access to Override Material Settings
V-Ray for 3ds Max Japanese localization

V-Ray, V-Ray GPU

Add separate control for IPR Ray Bundle Size in GPU UI
Implement edge trimming into the core for V-Ray Standalone and V-Ray GPU
Export Color Correction settings from Forest Pro Material rollout
Abort on missing OCIO display corrections
VRayUVWRandomizer Flip UVs option
Support for rendering Particle colors based on different channels

V-Ray GPU

Improved bump mapping for small objects
Volumetric scattering with anisotropic phase function

VFB

Allow creation of folders in the main layer stack in VFB
Add the ability to select and move multiple layers into a folder in VFB
Add a link in the VFB History panel for enabling it when off
Copy the current state to the clipboard when a mask' preview is visible as well in VFB
Remove the ability to change the visibility of a layer by clicking the middle mouse, right-click in VFB
Remove the middle mouse and right click as an option to select or deselect objects from a mask in VFB
Option for adding the image alpha when copying to clipboard

VRayClipper

Pick mesh button in VRayClipper should be disabled while creating the clipper

VRayDecal

Width takes values greater than the ones that Bend could handle in VRayDecal
Divide the UI of VRayDecal in groups, and add a lock aspect ratio button.

VRayIES

Rearrange VRayIES UI
Align VRayIES light's default shadow bias value to other V-Ray Lights

VRayLight

Grey out Target distance when Mesh mode is chosen in VRayLight
Grey out Targeted parameter when Spherical light is chosen inside VRayLight
Draw a viewport preview for Finite Dome light's radius value
Flip the direction of the VRayLight when Alt key is pressed
Make "Texmap preview" in VRayLight active and able to preview a texture in the viewport
Add a viewport indicator for VRayLights

VRayMtl

Gray out IOR controls for metals

VRayMultiSubTex

VRayMultiSubTex to support randomizing by Tile (BerconTile)

VRayMultiSubTex, VRaySamplerInfoTex

Add a new mode in VRayMultiSubTex for ID generator textures

VRayPhysicalCamera

Add Type label in VRayPhysicalCamera settings

VRayPluginNode

New UI on VRayNoiseTex

VRayVolumeGrid

In 3ds max, all generated splines from the streamlines preview should have their viewport visibility and render visibility enabled
Control for automatically setting the Cache Origin and Timeline Origin to the beginning of the loaded sequence
Move all the on/off switches for the different preview types to the top of the Preview rollout

vdenoise.exe, filter_generator.exe, lens_analyzer.exe, ply2vrmesh.exe, vrimg2exr.exe, imapviewer.exe, img2tiledexr.exe, vrmesh_viewer.exe

New icons for the tools shipped with V-Ray

Bug Fixes

V-Ray

Exception in V-Ray GPU when rendering VRayLight with texture and Spot Light with Projector map
IPR crashes with standard material nested in override material for USDStage
Wrong VRayLight intensity when exported to USD and then rendered
xRef with VRayProxy viewport preview does not load correctly when switching xRef files in stable and nightly builds
Wrong export of transform list params in plain text
USD - Crash when rendering USD file containing VRayLight when imported in a scene with a matte object
Animated mesh normals are not used and instead computed and rendered as smooth normals
Converting .vrimgs to multipart .exrs via the vrimg2exr tool makes some denoiser elements unrecognizable by vdenoiser.exe
A scene with VRayDecal, Switch material and user-defined properties takes too much time to unload after a render is stopped
USD Material Interface handling in V-Ray for 3ds Max
Slowdown when rendering VRayHairNextMtl with opacity in comparison to V-Ray 5.1
USD - Changes in UsdStage session layer are not rendered
Incorrect minimum value for geometry samples in QT UI Render setup Camera rollup
Some LPE presets for render elements are incomplete
Add support for animated crop parameters of Bitmap/VRayBitmap when exporting to a vrscene file
Incorrect rendered output of RE due to conflict between NVIDIA AI Denoiser with enabled Upscale and change in resolution during submission to the cloud
V-Ray / V-Ray GPU result discrepancies when exporting animated objects and motion blur enabled
Assets of type "material" import with multiple VRayUVWRandomizer nodes
VRayNormal nodes are always imported with "Flip green" turned on
Crash when editing VRayBitmap filename with frameNum tag
V-Ray GPU crashes with Render Mask with empty Include list
Black viewport display of large textures with VRayBitmap
3ds Max crash with X-ref scene and LiveLink
Crash in V-Ray Standalone when rendering Forest Color using empty VRayBitmap as default map
Motion blur geometry samples override per object is not exported when the animated mesh remains on the same position
VFB Real Zoom doesn't update correctly in GPU IPR with V-Ray Cameras with enabled Resolution override
Crash when rendering TyCache (TyFlow) with Edit mesh modifier only in animation
Mis-loading of frame-numbered ABC sequences
3ds Max crashes with imported USD file and running IPR
Overrides are not working when enabling Use alembic offset in VRayProxy with Include visibility lists
Visibility override is not working for VRayProxy with visibility lists after making it unique
Chaos Scatter's Edge trimming does not render correctly in V-Ray GPU when we have multiple Multi/Sub-Object materials applied to the instanced objects
Chaos Scatter's Edge trimming renders incorrectly in V-Ray GPU on instanced objects with Multi/Sub-Object when Override mtl is used
The top level materials imported along with geometry assets get non-unique names
Scatter-instanced models' materials might get exported incorrectly on duplicated names
Discrepancies with Standalone when using a material with VRayBitmap with no tiling, Alpha source set to None and a custom UVW map
Error with the V-Ray Proxy exporter when object name contains slash symbol
Inconsistent rendering of Scatter during GPU IPR session with delete/undo
Rare crash while obtaining a license
Wrong symbols in VFB compare settings when Chinese UI is used
Viewport GPU IPR renders black when started from a camera viewport with enabled Resolution Override
Typo in Submit to Chaos Cloud rendering window UI
Crash when switching between VRayPointCloudColor maps in Compact ME
Huge slowdown with alembic with complex hierarchy loaded in VRayProxy
Override mtl include option is not transferred when switching between V-Ray/V-Ray GPU
Deep output: certain channels should be always 32-bit
Some of the settings in Translucency are not grayed out when Volumetric is used in combination with Thin-walled in VRayMtl
Cloud Preview resolution is not respected when VRayPhysicalCamera's Resolution override is used
USD - Crash when exporting to USD as animation range VRayProxy with nondefault Scale value
Explicit normals are changed to Unspecified for modified Proxy nodes
Motion Blur does not affect VRayTriplanarTex when applied to VRayProxy
Camera creation for ortho views needs a default target distance value
Command panel gets resized when VRayProxy object is selected
V-Ray GPU crash when rendering TyFlow cache with motion blur with a specific scene
Endless compiling geometry step to displaced alembic in V-Ray Standalone
Vraylog overwhelmed with: Object () may require 2-sided lighting: material () is potentially translucent
Wrong mapping at UV seam with Normal maps in 3ds Max
Animated rotation of HDRI rendered with Backburner/Deadline and V-Ray GPU differs on each machine
VRayUVWRandomizer's Coordinates Rollout UI not responding to animated parameters
Isolate Locked Selected does not lock onto nodes in the Material Editor
V-Ray Ambient light is not illuminating when exported
Material color swatch is not rendered outside of VRayHDRI placement when the map Opacity is set to None
No extension on vrmesh files if deleted when choosing a file name
Slow progress printing due to unconditional console code page changes
BitmapBuffer reported black as an invalid color
Saving a TIFF file with the SaveTIFFile() function in pimglib swaps the red and blue components
Slowdowns in Embree when multiple dynamic objects are expanded at the same time
LPE light tags support
VRayProxy with assigned Multi/Sub-Object material in V-Ray GPU has incorrect shading with material override
Access violation during closure code generation with LLVM 12
LC samples should not be increased when rendering minuscule regions
Changing any settings or changing the timeline frame of Simulators or Particle Shaders in Volumetric Mode does not update in V-Ray CPU IPR in Maya

MultiMatteElement

VRayObjectSelect deep output issues

V-Ray GPU

VRayEnmesh "Use mesh UVW mapping" does not consider source object's mapping channel different than 1 on V-Ray GPU
Crash on starting IPR with GPU, DR on and VRayCryptomatte RE with ID type set as Node Material Name or Node User Property
Aborting rendering while Uploading Bitmaps is not responsive
Garbage data read when there is displacement in a scene
Crash when scenes containing Image sequences and V-Ray Sky are rendered with CUDA and then RTX engine
Assert and NaNs in the result when reading diffuse light select values from light cache
Fix reading uninitialized memory on the first iteration of LC/K3
Select object and Pick object material functionality in VFB is broken with V-Ray GPU IPR
Render freeze when rendering animated object with RTX, motion blur and V-Ray Denoiser
GPU Light cache freeze when rendering animation with a specific scene on a machine with multiple gpu devices
Phoenix Particle Shader in Point mode randomly disappears on a test scene with OptiX
Print a warning for CUDA 12 min driver version
Emissive material does not appear in VRaySelfIllumination behind refractive object
VRaySphere is not rendered with RTX
Rendering stucks when using the Bucket image sampler and Textured render mask
MultiMatte does not consider material IDs nested in VRayBlendMtl with blend amount
Regression of spot/direct lights intensity
evalSamplerTex might return uninitilized .w in some modes
Instanced objects render black when "Cast shadows" is unchecked and Edge trimming in Chaos Scatter is active
Parsing version 470.161.03 failed
VRayClipper does not have correct material IDs when rendering with V-Ray GPU
Cryptomatte render element doesn't work for objects behind glass
Bump mapping doesn't work correctly on a plane
MultiMatte does not work with material IDs within VRayBlendMtl
MultiMatteID is not propagated through nested materials
VRayVolumeGrid and Smoke renders artefacts with GPU

V-Ray Toolbar

Submit to Chaos Cloud window is opened from V-Ray Toolbar even when the current renderer is max native one

V-Ray/V-Ray Bitmap to VRayBitmap converter/V-Ray scene converter

V-Ray Scene Converter incorrectly converts displacement amount from CoronaLegacyMtl
V-Ray scene incorrectly converts Corona material "Onyx" from Corona Material Library

VFB

It takes several times to exclude an object from a mask with the Minus button
Pixel info in VFB is not available when loading EXR which does not contain alpha channel
Missing visible indication for Override Mtl with no picked material error
VFB 2 doesn't read the VRAY_VFB_SRGB env variable
Crash when hovering over specific VFB layer presets while rendering and having VRayDenoiser added
All VFB layers are disabled in specific scene
Lens effects flicker with VFB Batch image processing

VFB, V-Ray

VFB OCIO settings lost when opening a scene with a broken config path

VRayDenoiser/vdenoise.exe, V-Ray GPU

rhel8: V-Ray denoiser OpenCL sporadic initialization failure

VRayGLSL

VRayOSLTex Quick Shader widget does not update
Crash with VRayGLSLTex in Environment

VRayInstancer

V-Ray IPR crash with scatter in if the last model from the UI instanced group is deleted from the scene
V-Ray crashes with newer scatter release suited for Corona

VRayLight

Modifying width value of sphere lights through MAXScript affects intensity rays
Typo in VRayLight script parameter name
Adaptive Dome light support for Light Cache 'From File' mode
The simulation keeps interacting with objects hidden using Hide by Category in 3ds Max

VRayLight, V-Ray Toolbar

Preserve the position of the mesh on which VRayClipper is applied if the gizmo was moved previously
Preserve the position of the light when Mesh light is applied on an object with a repositioned gizmo

VRayMDL

MDL materials lost between renders
User-defined MDL include paths not exported
MDL module path not sent from client and module not resolved correctly on the server during DR
Modified material parameters are ignored on the GPU
Importing MDL modules from within an MDL module does not work with DR
MDL materials with enum parameters fail to load

VRayMDL, V-Ray

MDL crashes when MDL nodes are imported via VRayScene

VRayMDL, VRayGLSL

Remove "Reset" and "Reload" options from VRayMDLMtl context menu

VRayMultiSubTex

The Seed parameter of VRayMultiSubTex is placed over the texture mode drop-down list with Chinese UI
VRayMultiSubTex color swatches are not locked in Qt UI with disabling the Blend color and texture checkbox

VRayOSL

OSL closure registration fails with multiple renderer instances
Empty shader string parameters on OSL Map cause vassert failure with GPU rendering

VRayOSL, VRayMDL, VRayGLSL

VRayOSLTex produces Compiler errors when trying to modify code via Quick Shader's rollout

VRayGLSL

Embedded GLSL bitcode lacks a terminating zero

VRayPhysicalCamera

VRayPhysicalCamera zoom control doesn't update viewports in realtime
Zoom factor does not work with FOV in V-Ray Physical camera
Zoom Extents All Selected ("Z" shortcut) considers the VRayCamera's far clipping plane

VRaySun/VRaySky/VRayAerialPerspective

VRaySky should generate a temporary file for viewport preview only if needed

VRaySun/VRaySky/VRayAerialPerspective, V-Ray GPU

Environment Background multiplier does not affect the Sky Clouds in Rhino and SketchUp

VRayVolumeGrid

Crash during tyFlow particle simulation when reading Phoenix simulation data using Time Step below 1 frame with Phoenix for V-Ray 5
3ds Max crashes when loading a Phoenix Render Preset in a V-Ray Volume Grid
The Preview's Detail Reduction value is not updated in an expanded Preview rollout if the Volume Grid is not selected in 3ds Max
Changing any option in the floating rollout does not affect the options in the regular rollout in 3ds Max until you reselect the Volume Grid
Hide automatically the Phoenix viewport icons when using V-Ray Viewport IPR in 3ds Max
The cache is flipping back when changing any of the Smoothing options while Flip Up Axis is enabled in 3ds Max
Freeze when moving the timeline during rendering Volumetrics with V-Ray 5 IPR in 3ds Max
Changing the render Mode of the V-Ray VolumeGrid sometimes erroneously sets it to Volumetric or Volumetric Geometry
Crash when basing the Smoke Color on the Speed channel of VDBs whose bounding box does not start at 0,0,0
Wrong Grid-based Volumetric Motion Blur with VDBs whose bounding box does not start at 0,0,0
The streamlines viewport preview is transformed in an incorrect way in certain cases
The streamlines viewport preview in 3ds Max updates with a delay, after a change in the preview settings
Hidden or non-renderable Phoenix Simulator does not work as Simulator Render Cutter or Particle Shader Render Cutter in 3ds Max
In 3ds Max 2019 and 2020, opening a saved scene with Simulator QT combo boxes whose default is not the 1st element but is set to the 1st element, shows a wrong element
Crash when changing the frame during V-Ray IPR CPU rendering with Motion Blur enabled in 3ds Max
Mesh for native streamlines object is not generated properly in 3ds Max
Streamlines preview is not updated correctly until the current frame is changed
Volume Grid's lights are always created on the active render layer even if the Volume Grid is placed in another layer when the Hidden lights option is off in 3ds Max
Saved images from the 3ds Max, Maya and Standalone Previewer GPU preview with frames outside the timeline have cache indexes clamped to the nearest timeline frame
Simulator disabled from rendering and with no Velocity channel exported triggers a warning when rendering with Motion Blur enabled
Changing the frame during V-Ray IPR CPU doesn't update the cache file correctly with Motion Blur enabled in 3ds Max
When Smoke's Scattering option is disabled, the External Scatter Multiplier still affects the GPU Preview

ply2vrmesh.exe

Animated V-Ray Proxy with high poly count is causing long scene open times

Build 6.10.08

Official release, Update 1.2

Date – May 3, 2023

New Features

V-Ray, V-Ray GPU

Add initial support for RAW render elements in V-Ray GPU

Modified Features

V-Ray

Optimize vrscene export for ForestPack and motion blurred Anima assets

Bug Fixes

V-Ray

Cosmos auto-downloader should not modify or consider proxy/bitmaps pointing existing files
VRayBitmap preview in Max 2024 Viewport is wrong when using Max Color Management
V-Ray properties' values cannot be bulk-changed
Render crash with hidden grouped objects added to the light exclude list
EULA does not get accepted when a 2-byte character is used in the username
Progressive resumable rendering could leave corrupted files in case of a system crash during saving

V-Ray GPU

Rendering animation stops in the middle of the "Loading bitmaps" stage
Aborting GPU render before rendering might crash

V-Ray Toolbar

Chinese text for the Vantage toolbar icons in the English 3ds Max UI

VFB

Export of an image with wrong gamma when ICC Display correction is used

VRayMtl

User-created proxies created after cosmos asset import, might get overridden on auto-download

Build 6.10.06

Official release, Update 1.1

Date - April 11, 2023

New Features

V-Ray

Support for 3ds Max 2024;
Support for Material Switcher material in 3ds Max 2024;
Support for material compounds in 3ds Max 2024;

V-Ray, VRayInstancer, V-Ray GPU

Support for Chaos Scatter Edge trimming;

VFB

Add an ICC layer in the VFB;

VRayMultiSubTex, VRayTriplanarTex

Element recognition in VRayProxy with VRayUVWRandomizer and VRayTriplanarTex;

Language Localization

Chinese translation is implemented.

Modified Features

V-Ray, VRayDecal

Add "Render when hidden" option to VRayDecal;

V-Ray, VRayDirt

Add "Ignore Self Occlusion" option to VRayDirt;

VRayPhysicalCamera

Ability to disable VRayPhysicalCamera grid for camera-viewport;

VRaySun/VRaySky/VRayAerialPerspective, V-Ray GPU

Reduce tiling artifacts for thin layer of clouds;

V-Ray

Improve context menus of material and map buttons;
Redirect the "V-Ray Material Library Browser" button to Cosmos if the library folder is empty;
Enable the color mapping option of VRayMtlSelect by default;
Hide VRayFakeFresnelTex from the UI;

V-Ray, V-Ray GPU

Support for Forest Color Tint mapped by a texture when exported to Standalone;

V-Ray GPU

Support for Forest Pro's Edge Mode;

VRayGLSL, VRayMDL, VRayOSL

Hide the "System Paths" UI;

QT UI

Implement Qt UI of Max Physical Camera V-Ray attributes;
Implement Qt UI of VRayVRmatMtl;
Implement Qt UI of VRayShadows RE;
Implement Qt UI of VRayStereoscopic;
Implement Qt UI of VRayBitmap;
Implement Qt UI of VRayDomeCamera;
Implement Qt UI of VRayExposureControl;
Implement QT UI of Caustics rollup;
Implement Qt UI of VRayLightMix and VRayLightSelect RE;
Implement Qt UI of VRayPtex;
Implement Qt UI of VRayICC;
Implement Qt UI of VRayLut;
Implement Qt UI of VRayLightMeter;
Implement Qt UI of VRayMDLMtl;
Implement Qt UI of VRayOCIO;
Implement Qt UI of VRayOSLOutputSelector;
Implement Qt UI of VRayOptionRE;
Implement Qt UI of VRayPhysicalCamera;
Implement Qt UI of VRaySphere;

Bug Fixes

V-Ray

IPR crashes with IPR Debug Shading toggled;
Incorrect render for multiple copies of same proxy with different mesh sets reorder/remapping;
Black Viewport IPR rendering with NVIDIA AI upscale VRayDenoiser;
VRayBitmap mixup in GPU IPR when Anima 4D characters are added via the anima Drop option directly in 3ds Max;
V-Ray GPU with NVIDIA AI upscale denoiser produces an output of 1/4 of the desired resolution when the image is saved from the Common tab Render Output;
Cosmos assets auto-download on scene open crashes if there are currently ongoing Cosmos downloads;
Crash with Forest Pro if 3ds Max Photometric (IES) lights are used in scene;
VRayExtraTex render element typo "lossess compression";
LPEs don't consider 3ds Max native Lights;
Displace is not greyed out when Direct illumination is checked in VRayLightMtl;
Crash when turning Enable GI on/off in scenes where the legacy Expert mode of the rollout is set;
Turn off Temporal mode in VRayDenoiser when NVIDIA AI upscale is on;
Keyed frames VRayLight Directional parameter doesn't export correctly;
After importing specific Cosmos assets the translation of objects does not behave properly and undo stops working;
PointCloud does not work with VRayLightMix;
VRayUVWRandomizer in VRayBitmap Mapping source bug;
Show render log' button in V-Ray GPU Render Setup does not work;
VRayLight caustics multiplier is not exported to vrscene;
Export render region from the context menu scene exporter;
VRayLight properties are not exported;
Override Material Include and Exclude list does not work in V-Ray GPU;
Hidden Particle Shader is still rendered visible in V-Ray Standalone (.vrscene export) when it is part of the Multimatte include list;

V-Ray, VRayExposureControl, VRayLightMeter, VRayDomeCamera, VRayICC, VRayPlane, VRayStereoscopic

Undo with Ctrl+Z is not working with V-Ray textures and materials with QT;

V-Ray, VRayPhysicalCamera

Black render with 3ds Max's Physical camera with bokeh map and disabled DOF;
Custom texture for Physical camera Bokeh effect leads to black RGB render;

V-Ray/V-Ray Bitmap to VRayBitmap converter/V-Ray scene converter

V-Ray scene converter: Keeping the light Directional consistent after CoronaLight to VRayLight conversion;

VRayColor, VRayDistanceTex, VRayPtex, VRaySamplerInfoTex, VRayTriplanarTex

Controls are not grayed out properly when switching between maps of the same type in Max 2024 SME;

VRayDecal

VRayDecal inherits the recently used Projection offset value on opening an old scene;

VRayDirt

Crash when switching between VRayDirt maps in 3ds max 2024 ME;

VRayIES

Toggling the targeted option of VRayIES light shifts its viewport position;
Creating VRayIES with unchecked targeted will still create a light with a target;

V-Ray, VRayInstancer

Scatter instances popping in V-Ray during an animation;

VRayMultiSubTex

VRayMultiSubTex slots are not properly loaded in 3ds Max 2024 when setting up two such maps consecutively;
Wire between VRayMultiSubTex and its sub-map is hidden in SME UI when the respective slot ID is disabled;
Disabled duplicated ID of VRayMultiSubTex prevents using the settings from its upper entry;

VRayMultiSubTex, VRayTriplanarTex

Specific VRayMultiSubTex configuration renders very slowly with motion blur;
Randomization by element with VRayUVWRandomizer and VRayTriplanarTex does not work for VRayProxy;

VRayPhysicalCamera

Maxscript exception when creating VRayPhysicalCamera with enabled Automatic vertical tilt;

VRayStochasticFlakesMtl

VRayStochasticFlakesMtl is not updating its grayouts properly;

Build 6.10.04

Official release, Update 1 Bugfix

Date - March 16, 2023

Modified Features

V-Ray

Make the error 'Ignoring material LPE label "base"' a warning;

Bug Fixes

V-Ray

Various fixes for Deferred loading of the VRayBitmap viewport previews;
Fix issues with the "manual" mode of the LightMix render element;
V-Ray GPU with upscale denoiser produces an output of 1/4 of the desired resolution when the image is saved from the Common tab Render Output;
Global Switches' Override spinner arrows not responsive with values between 1 to 10;
GI settings panel views don't switch in 3ds Max 2018;
Crash when turning Enable GI on/off in scenes where the legacy Expert mode of the rollout is set;
Error for auto-backup when the Material override is enabled without material;
Turn off Temporal mode in VRayDenoiser when NVIDIA AI upscale is on;
Specific VRayMultiSubTex configuration render very slowly with motion blur;
Exporting .vrmeshes to separate files does not work when the folder has multibyte characters;

VRayBlendMtl

Bring back the viewport representation of VRayBlendMtl;

V-Ray GPU

Memory leak with textures when rendering animation;
Include option in Exclude/Include lists in VRayClipper mesh mode is not working;
Render stucks when specific nodes are used for 2D displacement;

VRayDistanceTex

Nested VRayDistanceTex maps get the same Objects selection list in CME;

VRayEnvironmentFog

Negative values in Rest channel of VRayLightMix with opacity mapped double-sided lights;
Wrong VRayLightSelects with VRayEnvironmentFog and Opacity mapped objects;
Invisible objects are visible in VRayEnvironmentFog when using light mix;
Invisible VRayLights show up in Light select render element when having VrayEnvironmentFog;

Build 6.10.02

Official release, Update 1

Date - Feb 21, 2023

New Features

VFB

Add masking support for Lens Effects and Denoiser layers in the VFB;
Support for comparing VFB History images with their own Layer Stacks;
Add custom color space options for the VFB Background layer;
Add Light Mix Render Element from the VFB directly;

VRayDenoiser

Integrate upscaling denoiser mode from NVIDIA into V-Ray;

V-Ray

Initial support for MaxUSD Exporter and USD Stage;
Deferred loading of the VRayBitmap viewport previews;
Support for exporting VrayRawRefractionFilter and VrayRawReflectionFilter RE in Chaos Cloud;
Support for exporting VRayRawDiffuseFilter RE in Chaos Cloud;
Add an option for Intel Open Path Guided Rendering in the Light Cache rollout;

VRayLightMix, VRayLightSelect

Material support for VRayLightSelect RE (LightMix);

VRayDecal

Cylindrical projection functionality for V-Ray Decal;
VRayDecal to respect surface bump;

VRayLight

Custom light decay for V-Ray lights;

VRayPhysicalCamera

Override resolution per VRayPhysicalCamera;
Add proportion guides to VRayPhysicalCamera;

VRayVolumeGrid

Deform Volume Grid in Volumetric, Volumetric Geometry and Isosurface modes when Bend, Skew, Taper, Twist, Melt, or Stretch modifiers are applied to them. No support for streamline and GPU viewport preview yet. No support for .vrscene rendering and Cloud rendering yet;
Button for converting the currently shown velocity streamline preview into native 3ds Max splines;

V-Ray GPU

Add support for Compressed Textures mode on V-Ray GPU;
Mesh mode support for VRayClipper;
Port the "Uniform" illumination mode of the VRayMtl Translucency on GPU;
VRayCryptomatte support for objects seen through refraction/reflection;
Integrate VolumeInstancingTree and VolumeGrid instancing optimizations into V-Ray Standalone CPU;

V-Ray Sphere Fade

Add an "invert" option to the VRaySphereFade atmospheric, similar to the one in Maya;

Modified Features

V-Ray

Make the VRayDecal mask blend for displacement;
Instancing 3ds Max .vrscene export support for VolumeGrid;
Export of animated film gate of VRayPhysicalCamera;
Warning in the Scene Analyzer for scenes with Irradiance map;
Silent installation changes the .xml file values;
Ability to specify channel numbers for UVs and other alembic arbGeomParam data;
Improve context menus of material and map buttons;
Improve VRayLightMix's right-click menu;
Expose the DeleteResumableFileOnSuccess option in the V-Ray for 3ds Max interface;
Progressive caustics performance improvements
Optimize OSL headers loading;
Improve the machine info printed in the log in V-Ray Standalone or by the -version flag;
Support for long error messages;
CPU IPR should read the mtl_maxdepth settings;

VRaySun/VRaySky

Improve V-Ray Sky procedural clouds by adding parameters for density, seed and contrails;

V-Ray, V-Ray GPU

LightMix during Light Cache building and progressive undersampling;
Support for user attribute modes of VRaySamplerInfo RE in V-Ray GPU;

VRayPlane

Add option to VRayPlane to use real world scale;

VRayDecal

VRayDecal works even if it is hidden;
Improve VRayDecal's cylindrical workflow;

VRayLight

Improve light sampling for VRayEnvironmentFog;
Update light linking in IPR, when user updates light exclude/include list;
Draw a viewport preview for VRayLight decay options;
Lights scattered by VRayInstancer should be controlled by their sources in VRayLightSelect elements (LightMix);

VFB

New color for the pressed state of "Test resolution" in VFB;
Increase the maximum of the Glare Size parameter from 100% to 200%, while keeping the soft maximum to 100%;
Add light selection functionality in LightMix;

V-Ray .vrmat converter

Redesign the VRmat Exporter;

VRayVolumeGrid

Faster rendering of VolumeGrid instances in V-Ray Standalone CPU;
Make the 3ds Max "Export and Render in V-Ray GPU as VRayVolumeGrid" also affect the Ocean, Grid, Foam and Particle Phoenix textures;
Option to turn off the smoothing of the mesh normals;
Add "Do not show this message again" checkbox to the dialog asking to enable Static Default Geometry for Ocean Mesh mode in 3ds Max;
Allow manual creation of the VolumeGrid atmosphere, but no more than one instance;
Visibility and self-shadowing checks for VolumeGrid, instaced by VRayInstancer;
Recognize by default the "velocity(x)", "velocity(y)" and "velocity(z)" grid channels and the "particles_velocity" from VDBs from Blender;
Slice Preview Width option;
Own Light Scatter Mult and External Scatter Mult are not greyed-out when Scattering mode is Disabled or Ray-Traced in 3ds Max;

V-Ray, V-Ray Bitmap to VRayBitmap converter, V-Ray Scene Converter

Remove 'maxver' global from vrayutils.ms to avoid clashes;

VRayMtl

Shadow opacity optimizations;

VRayMtl, VRayLight

Detect missing Cosmos assets and auto-download them on user choice;

VRayOSL

Embed standard OSL header files into the OSL library;
Add frame index as OSL shader attribute;
Expose access to shutter time in camera shaders;

VRay GLSL, V-Ray GPU

Expose time global variable in camera shaders for GPU;

VRayPluginNode

Changing the name of the VRayNoiseTex when copying it;

VRaySun, VRaySky, VRayAerialPerspective

Add an Affect Alpha option in the VRayEnvironmentFog and VRayAerialPerspective;
Replace VRaySun's .enabled parameter with .on (maxscript);

VRaySwitchMtl

VRaySwitchMtl's nodes and properties Materials to be with the same numerations;
Show the VRaySwitchMtl sub-material in the viewport in respect to the current switch value;

QT UI Implementation

Implement Qt UI of VRayLightMix and VRayLightSelect RE;
Implement Qt UI of VRayMetaball;
Implement Qt UI of VRayDecal;
Implement Qt UI of VRayRenderId RE;
Implement Qt UI of VRayZDepth RE;
Implement Qt UI of VRayWireColor RE;
Implement Qt UI of VRayVelocity RE;
Implement Qt UI of VRayUnclampedColor RE;
Implement Qt UI of VRayVectorDisplBake;
Implement Qt UI of VRayToon RE;
Implement Qt UI of VRayMtlSelect RE;
Implement Qt UI of VRayRaw/Refraction/Reflection/Filter RE;
Implement Qt UI of VRayObjectID RE;
Implement Qt UI of VRayMtlID RE;
Implement Qt UI of VRayLightingAnalysis RE;
Implement Qt UI of VRayExtraTex RE;
Implement Qt UI of VRayDRBucket RE;
Implement Qt UI of VRayCryptomatte RE;
Implement Qt UI of VRayAO RE;
Implement Qt UI of V-Ray Object properties;
Implement Qt UI of VRayDisplacementMod;
Implement Qt UI of VRayDenoiser RE;
Implement Qt UI of VRayInstancer;
Implement Qt UI of VRayHairFarmMod and VRayOrnatrixMod;
Implement Qt UI of VRaySamplerInfo RE;
Implement QT UI of System rollup;
Implement QT UI of Caustics rollup;
Implement QT UI of GI rollup;
Implement QT UI of Color mapping rollup;
Implement QT UI of Tiled texture options and Proxy preview cache rollups;
Implement QT UI of Light Cache rollup;
Implement QT UI of Camera rollup;
Implement QT UI of Image Sampler and Image filter rollups;
Implement Qt UI of VRayAtmosphere RE;
Implement Qt UI of vrscene export and cloud submit dialogs;
Implement Qt UI of VRayDirt;
Implement Qt UI of VRayEnvironmentFog;
Implement Qt UI of VRayOptionRE;
Implement Qt UI of VRaySSS2 RE;
Implement Qt UI of VRScansZone and VRScansPMaskElement REs;
Implement Qt UI of VRayFur;
Implement Qt UI of VRayGLSLTex;
Implement Qt UI of VRayGLSLMtl;
Implement Qt UI of VRayOSLTex;
Implement Qt UI of VRayOSLMtl;
Implement Qt UI of VRayIES;
Expose tooltips for Qt UI of VRay Materials/Maps and Render Setup in 3ds max versions 2020-2019;
Implement Qt UI of VRayObjectSelect and MultiMatte REs;
Implement Qt UI of VRaySun;
Implement Qt UI of VRayAmbientLight;
Implement Qt UI of VRayLight;
Implement Qt UI of VRayPhysicalCamera;
Implement Qt UI of VRayPlane;
Implement Qt UI of VRayPtex;
Implement Qt UI of VRayScene;
Implement Qt UI of VRaySphereFade;
Implement Qt UI of VRayAerialPerspective;
Implement Qt UI of VRayToon;

Bug Fixes

V-Ray

Camera Motion Blur doesn't work in IPR;
Incorrect IPR results when excluding an object from the Source Light instanced by VRayInstancer;
Incorrect values when using only one of the input color components on GPU/Standalone;
After importing specific Cosmos assets, the translation of objects becomes abnormal and Undo stops working;
VRayCompleteMap baking element disappears from the V-Ray GPU rollout;
3ds Max crashes when a USD file, created by the Omniverse exporter, is rendered in V-Ray;
Random crash when starting IPR from VFB with specific scene;
The translucency of the VRayMtl is not written to the albedo render element;
Render mask on Layer mode does not respect Layer hierarchies;
Bucket size is transferred to V-Ray GPU, when set in V-Ray CPU;
VRayMtl Environment Map field missing from UI in 3ds Max 2018;
Region rendering disabled in IPR when "Built-in Buffer" is disabled;
Cosmos lighting assets import with the wrong mode;
VRaySheenReflection render element causes difference in VRayTotalLighting element in specific scene;
Crash on .vrscene export with Separate files option=on and any of the sub options disabled;
Incorrect IPR results when excluding an object from cloned (instanced) VRayLight's exclude list;
Incorrect export of VRayLight' s animated parameters to USD;
If a viewport is maximized all 4 viewports show their borders when dropping a Cosmos 3D asset;
Occasional crash on downloading missing assets from Cosmos;
Use world units spinners for the VRayMtl's "Dim distance" and translucency "Thickness";
Cosmos materials with fog are imported incorrectly;
V-Ray installation overrides newer Cosmos installations with an older one;
Animated Alembic meshes produce incorrect velocities when modifiers are applied;
Empty rollouts when opening scene with obsolete Expert UI mode setting;
Crash while downloading multiple misallocated Cosmos assets to use with current scene;
VRayDistanceTex not properly updating upon object movement in V-Ray GPU;
3ds Max 2018 crashes when a VRayMtl is created or copied in the Material Editor while the IPR is running;
Random crash when rendering a sequence, using Live Link with Vantage;
Wrong render of the ZDepth render element with Catmull-Rom Image Filter;
Difference in export with VRayNormalMap when a map is used in the bump map slot;
Crash with an empty VRayEnmesh reference objects list in V-Ray Standalone;
Changes to a material in the CME do not show in the viewport in real time;
Diffuse color changes from Compact material editor are not updated in the viewport;
Anima characters not following walkway path on scene export;
Discrepancy in Standalone with visible Dome lights and VRayZDepth;
Anima 4D characters rendering distorted in Standalone animation;
UV Space Map channel for VRayNormalMap is not exported;
Crashes with NormalBump on instance delete and undo or creation;
Including/Excluding a light through the trace sets in the V-Ray Properties of an object does not work correctly;
VRayInstancer does not render properly VRayLightMtl in VRender and Standalone GPU/CPU, when Direct Illumination is On;
Export render region from the context menu Scene Exporter;
Various Atmospheric gizmos used with VRayEnvironmentFog are rendered with uniform shape when exported;
Forest Color map produces color tint artifacts/variations in Element mode in GPU IPR;
Main channel selection in the Standalone Denoiser not working;
LPE light tags support;
Longer render and load time with Alembic compared to VRmesh;
Compile geometry is slow when there are 735 proxy files referencing the same .vrmesh file;
Specific Tiled EXR file returns black color when applied as texture, due to only channel present in file being rgb.R;
.vrscene file path is reduced to 256 characters;

VRayVolumeGrid

The Loop Time Bend mode treated as Direct Index mode when exporting from 3ds Max to vrscenes, rendering with V-Ray GPU or on the Chaos Cloud;
V-Ray Distance texture used as a Fire opacity mask doesn't update properly during sequence render with V-Ray GPU;
Can't animate the 'Fire Multiplier', 'Physically Based', 'Fire Opacity Mode' and the Smoke Color 'Based On' parameters when exporting to V-Ray Scene;
The Mesh of the VolumeGrid has Vertical Fade level erroneously applied to it and it can't be turned off;
Crash when rendering with Scanline after the scene has been rendered with V-Ray;
The Render Elements might render black with freshly started 3ds Max and Volume Light Cache enabled;
Smoke opacity modulated by V-Ray Distance texture doesn't show the correct result in the viewport GPU Preivew;
Voxel Velocity and Streamline Velocity previews show much less data than they should with Auto Range and a moving VolumeGrid;
The Streamline Velocity preview does not exclude the inertial velocity of a moving container like the old Velocity preview does;
3ds Max crashes when rendering in Isosurface Render Mode and a Gradient Ramp texture, set to Lighting Gradient Type, is used as a V-Ray Environment texture map;
Saved images from the GPU preview with frames outside the timeline have cache indexes clamped to the nearest timeline frame;
VRayPluginNodeTex map in the Bump map slot renders with different strength after export;

V-Ray, V-Ray GPU

Displacement applied on a Decal does not render correctly on the opposite side of the camera;
VRayDecal mask is not clamped;

V-Ray GPU

Mismatch in Diffuse shading and displacement using the same Triplanar texture;
Cryptomatte masks for lights are not working in V-Ray GPU;
CUDA error 700 appears when toggle off/on the Volumetric Environment set to Fog during Interactive render with GPU;
555f00prism.vrscan causes Maya to crash when GPU render is started;
Crash with NVlink and artifacts with V-Ray light positioned exactly at 90 degrees and matte surface, using V-Ray GPU;
VRayMultiSubTex in Random By Element mode with dynamic geometry produces incorrect results;
Crash when using Refraction+Alpha on specific object;
VRayDecal with disabled 'Use decal user properties' renders differently in V-Ray GPU;
Wrong clipped VRayLights objects with OOC when VRayClipper is set with Use Object Material;
GPU Light cache freezes when scrubbing the timeline during IPR with specific scenes;
Reflect/Refract Affect All Channels doesn't work with VRayBackground RE;
Crash in V-Ray GPU IPR with BF+BF and refractive glossy VRayMtl when changing translucency modes;
Difference between CPU and GPU with VRayMultiSubTex Random By Element and non-default motion blur geometry samples;
Textures on objects are not rendered correctly with motion blur and viewport subdivision;
Dynamic geometry doesn't update in Interactive when deformed;

V-Ray, VRayAlSurfaceMtl, VRayFastSSS2

Override Material's Preserve Original Opacity does not work with VRayFastSSS2 and VRayALSurfaceMtl;

V-Ray, VRayInstancer

VRayScatter does not work with VRayCryptomatte;

V-Ray, VRayInstancer, VRayMultiSubTex, V-Ray GPU, VRayTriplanarTex

Wrong motion blur with Chaos Scatter and inconsistent ID assignments;

V-Ray, V-Ray Bitmap to VRayBitmap Converter, V-Ray Scene Converter

VRmat exporter with all scene materials causes MAXScript exception when exporting background color textures;
V-Ray Scene Converter does not propagate Strength Mult. parameter from CoronaNormal to VRayNormal;

VFB

Crash when resetting CC Layers stack while Curves are being recalculated;
Saving an image from the VFB with the Background layer set to "As Foreground" produces black overlay;
Missing color corrections when uploading an image from VFB History to Chaos Collaboration;
Remove MaxScript commands for the old VFB from the vfbControl list;

VRayDecal

VRayDecal's helper with an assigned material does not update properly its viewport preview when changing its dimensions;
VRayDecal to work with VRayUserScalar/VRayUserColor;

VRayEnmesh

VRayEnmeshMod does not work with Opacity;
VRayEnmeshMod's Crop box position is misallocated in 3ds max 2023;
Enmesh does not properly work with masked decals;
Incorrect results with masked VRayDecal projected on VRayEnmesh;

VRayEnvironmentFog

Artifacts with 5 or more VRayEnvironmentFog gizmos;

VRayGLSL

Crash when deleting the light while rendering a scene with VRayGLSLTex in V-Ray IPR;

VRayGLSL, V-Ray

VRayGLSLMtl does not generate render channels in V-Ray for 3ds Max;
Crash with generator_outline.frag;

VRayGLSL, VRayOSL, VRayMDL, VRayPluginNode

Texture used with VRayOSLMtl doesn't show with production rendering;

VRayInstancer

Thinking Particles object renders despite primary visibility being OFF;

VRayLight

VRayBitmap's QT Map button in Dome Light doesn't load textures accurately;
Modifying the settings of existing VRayLight in a previously saved scene transfers them to every other consecutively created light;
Adaptive dome light artifacts when Caustics are enabled;

VRayMDL, VRayGLSL, VRayOSL

Crash with ill-formed parameter lists in OSL;
Crash after deleting `[[string widget="null"]]` metadata;

VRayMtl

Wrong results when projecting opacity-mapped VRayDecal onto VRayMtl with Refraction or Translucency mode;
Dragging an HDRI from Cosmos to VRayBitmap input field is not working;
XRef material is populated with the whole material tree in SME on render;

VRayOSL

Incorrect handling of empty camera shader nodes when targeting the GPU;
OSL preprocessor warnings are treated as errors;
Access violation with camera shaders which make use of `transform()`;

VRayOSL, V-Ray

Tiling of input textures not taken into account in V-Ray GPU;

VRayPhysicalCamera

DOF has to be applied when "Bitmap aperture" is active but the bitmap itself is not loaded in VRayCam settings;

VRaySun, VRaySky, VRayAerialPerspective

VRaySky realistic viewport pixels are clamped to 1.0;

VRayPluginNode

VRayPluginNodeTex map in the Bump map slot renders with different strength after export;

V-Ray Toolbar, VRayMtl

Wrong viewport shading of objects with VRayMtl when assigned from V-Ray Toolbar;

Build 6.00.20

Official release, Hotfix 3

Date – Oct 5, 2022

New features

V-Ray

V-Ray CPU IPR support for for VolumeGrids and Phoenix SImulators in 3ds Max;

Modified features

V-Ray

Installing V-Ray as a render node also installs Cosmos and Unified login;
Integrate the latest scatter materials randomization enhancements in Cosmos;

V-Ray GPU

GPU support for Affect All Channels;

VolumeGrid

Expose the hidden Grid Based motion blur in the user interface - it allows for more explosive and more fluid looking blur;
Sped up rendering of grid volumes with up to 25% when Fully Visible Fire or Volume Light Cache was used;
Sped up rendering of grid volumes with up to 10% when the RGB channel was used;
Simulation meshes produced by Wave Force must be able to blend seamlessly with infinite ocean;

V-Ray/V-Ray Bitmap to VRayBitmap converter/V-Ray scene converter

Support conversion of the CoronaPhysicalMtl through the V-Ray scene converter;

VRayMtl

Add Soap Bubble preset to V-Ray Mtl presets;

Bug fixes

V-Ray

Missing Tab name in the VRayBitmap node in Max 2018;
VRayDisplacementMod's MaxScript write_vrmesh command is not working;
VRayProxy vrmesh can not be overridden from 3ds Max in V-Ray 6;
Low CPU utilization with Intel Alder Lake CPUs on Windows 11;
Decal displacement doesn't affect minimum geometry displacement, breaking negative decal displacement;
Crash with Forest with V-Ray 6 IPR;
V-Ray Light Lister misbehaves with DPI scaling above 100%;
VRayScene Animation Override Playback parameter value is not exported;

V-Ray, V-Ray GPU

Crash on GPU rendering Chaos Scatter when using splines as distribute-on objects;

V-Ray GPU

IPR GPU does not update when changing the list of affected lights in the Environment Fog settings;
VRaySphere flip normals not supported;
Sun disk from VRaySky environment map is rotated with VRayLight dome's texture;
Incorrect Diffuse filter render element when All channels option is selected under Affect Channels;
IPR GPU does not update the render when adding new lights to Environment Fog;

VFB

Slow bucket refresh when using Curves or Exposure corrections;
VFB color corrections are not saved on all frames using vrimg and when rendering an animation;

VRayEnmesh

VRayEnmeshMod input fields are not working in the latest builds for 3DS Max 2018;

VRayMtl

VRayMtl's Qt version needs differentiation in the Glossiness maps names;

VRaySphere

VRaySphere wrong size when scaled (CPU);

VRayVolumeGrid

Rare GPU Preview crash;
Crash during V-Ray Light cache generation when Fire Lights are illuminating OSL material exported to vrscene;

Build 6.00.08

Official release, Hotfix 2

Date – Aug 10, 2022

Modified features

V-Ray

Implement Qt UI of VRayBitmap;

VRayBlendMtl, VRaySwitchMtl

Use native 3ds Max material and map Qt buttons wherever possible;

Bug fixes

V-Ray

Crash on starting IPR rendering with Forest scene;
Drag and dropping images onto the VRayBitmap's bitmap slot stopped working;
VRayMtl appears black when using SSS translucency and refraction is not white;
Undo for clear shortmap button is not working for QT based UI;
Applying 3ds Max Modifier to a simulator/volume grid in volumetric mode prevents it from rendering;

V-Ray, VRayEnmesh

VRayEnmesh produces wrong results when shaded with VRayTriplanarTex;

VRayEnmesh

Crash when excluding VRayEnmeshMod object from a light;

VRayInstancer

Crash on aborting Chaos Scatter creation with V-Ray IPR running;

VRayLight

Adaptive dome artifacts with VRayScatterVolume material;

VRayMtl

Opacity renders as solid black with black fog color in V-Ray 6;
Wrong render of VRayMtl with opacity and fog color;

Build 6.00.06

Official release, Hotfix 1

Date – July 28, 2022

New features

V-Ray

Keep the renderer settings when switching the production renderer between V-Ray and V-Ray GPU;

Modified features

V-Ray

Proper alignment on placing cosmos walls and ceiling suited assets;
Cosmos importer - decal autogrid/auto-placement;
New icons for the Vantage Toolbar;
Implement QT UI of Environment rollup;
Implement Qt UI of VRayBitmap;

VRayMtl

Texture slots for fog depth and translucency amount;

Bug fixes

V-Ray

Evaluate diffuse and specular separately only for non-volume hits with VRayLight Affect atmospherics;
Saving EXR directly from the VFB is not multithreaded (regression);
Artifacts with matte object and invisible VRayLight;
Reflections dim falloff does not work with matte object;
Invisible lights are visible in front of Matte surfaces;
Animated thickness parameters for thin film in VRayMtl are not exported;
Crash in compact material editor when dragging VRayBlendMtl's coat material to a free slot;

V-Ray GPU

Crash on GPU rendering when using splines as distribute-on objects;
Optix crashes with Chaos Scatter and assigned surface color on the source object when the distribute-on object does not have any texture to be used as a base map;
Specific scenes cause the GPU engine to crash;
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;

VFB

Crash when picking VRayScatter for a Cryptomatte Mask;

VRayDirt

DirtTex: "Distribution" parameter must be disabled only for the reflection modes;

VRaEnmesh

VRayEnmeshMod's Crop box size resets with UnwrapUVW;
VRayEnmesh produces wrong results when shaded with VRayTriplanarTex;
VRayEnmesh ignores hidden polygons and renders the full mesh in its objects list;
Limit the VRayEnmesh list to not accept the same object more than once;
Rearrange the UI

VrayInstancer

Black IPR rendering after refresh when using VRayInstancer;

VRaySun/VRaySky/VRayAerialPerspective

VRaySun's Clouds not updating in IPR when used only in VRayDome;

Build 6.00.04

Official release

Date – July 7, 2022

New features

V-Ray

Include Chaos Scatter as part of the V-Ray installer;
VRayProxy improved functionality with hierarchy and advanced overrides (3ds Max 2019 and up);
Implement optimized auto-bump mode for displaced meshes;
Deep output option for the Cryptomatte render element;

VRaySun/VRaySky

Implement clouds for the V-Ray Sky;

VRayMtl

Improved SSS translucency mode of VRayMtl;
Add Thin Film rollout in VRayMtl;
Implement energy compensation for the GTR BRDF;

VRayLight

Finite radius for the dome light with option for ground projection;

VRayEnmesh

VRayEnmesh modifier in Max;

VRayDecal

Displacement support for VRayDecal;

VFB

Chaos Cloud Collaboration share tab;
VFB panorama Viewer;
Proportion Guides Layer to help with scene composition in VFB;
Batch image processing in VFB2; Option to process exr files;
Flip button in the VFB;
Add light selection functionality in LightMix;
Add an option to remove resumable vrimg file after successful render;

VRayVolumeGrid

Multiple scattering with custom phase function for volumetrics;
Add tooltips to the 3ds Max Simulator UI;
Display textures in the GPU preview;
Add tooltips to the 3ds Max UI;

VRayMultiSubTex

Batch load of bitmaps in VRayMultiSubTex;
Add "by user ID" random option in VRayMultiSubTex;

V-Ray GPU

Add support for V-Ray Perfect Sphere to V-Ray GPU;
Improve Trace depth workflow;
V-Ray CUDA/GPU rendering for Chaos Scatter Surface map;
Support for VRayLightingAnalysis render element;

VRayDenoiser/vdenoise.exe, VFB, V-Ray, V-Ray GPU

Add albedo RE for AI denoising;

V-Ray, VRayICC, VRayIES, VRayLUT, VRayMDL, VRayGLSL, VRayOSL, VRayPtex

Add MaxScript alias "fileName" for all plugins that take a file name as a parameter;

V-Ray, MultiMatteElement

Cryptomatte and Multimatte in Volumetric mode on CPU;

VRayScene

Ability to use a sequence of .vrscene files and load them automatically on frame change;

V-Ray/V-Ray Bitmap to VRayBitmap converter/V-Ray scene converter

Add a V-Ray menu item in the main 3ds Max menu bar;

Modified features

V-Ray

VRayDecal presets in Cosmos;
Implement QT UI of Default displacement rollup;
Implement QT UI of IPR options rollup;
Implement QT UI of Bucket image sampler rollup;
Implement Qt UI of VRayEdgesTex;
Implement Qt UI of VRayMtlWrapper;
Implement Qt UI of VRayLightMtl;
Implement Qt UI of VRayUserColor and VRayScalar;
Implement Qt based UI for some of the V-Ray/GPU render settings dialogs;
Implement Qt UI of VRayFakeFresnelTex;
Implement image files drag and drop to texture slots in Qt UI;
Implement Qt UI of VRayCarPaintMtl and VRayFlakesMtl;
Implement Qt UI of VRayBlendMtl;
Implement Qt UI of VRayBump2Normal;
Implement Qt UI of VRayBumpMtl;
Implement Qt UI of VRayCompTex;
Implement the UI of VRay2SidedMtl in Qt;
Implement Qt UI of VRayCurvature;
Implement Qt UI of VRayScatterVolume;
Implement Qt UI for VRayFastSSS2 Material;
Implement Qt UI of VRayCarPaintMtl2 and VRayFlakesMtl2;
Implement Qt UI of VRayHairInfoTex;
Implement Qt UI of VRayOverrideMtl;
Implement Qt UI of VRayPointParticleMtl;
Implement Qt UI of VRaySamplerInfoTex;
Implement Qt UI of VRayStochasticFlakesMtl;
Implement Qt UI of VRayNormalMap;
Implement Qt UI of VRayMultisubTex;
Implement Qt UI of VRayHairNextMtl;
Implement QT UI of Progressive Image Sampler rollup;
Modify V-Ray GPU sampling defaults;
Enable Probabilistic Volumetrics by default for new scenes;
Cosmos importer support of textures and materials for MtlLib porting;
Remove filter_generator.exe from the installation;
Update the slots in the Compact Material Editor according the new VRayMtl defaults;
Redirect the "V-Ray Material Library Browser" button to Cosmos if the library folder is empty;
Remove Show GPU stats in VFB from the GPU UI;
Remove Low GPU Thread Priority setting from the GPU UI;
Disable Time Limit in GPU UI when Sampler is set to Bucket;
Normals Render Element in Volumetric mode;
Improve order detection of custom UV channels in alembic loader;
Method for listing files paths from a Cosmos asset;
Partial material override to work with animations;
Transport custom particle data for light instances in V-Ray Standalone;
Remove the Visible to GI option from VRayObjectProperties;
On drag & dropping HDRI the result dome should not snap to objects;
VRayProxy preview types are cropped on HiDPI;
Add a warning when rendering VRayVolumeGrid in CPU IPR;
Improve the data window values when using Auto mode for the VrayOptionRE;
VRayHairInfoTex animated parameters export;
Remove the Diffuse subdivs and Diffuse multiplier options for Photon Mapping GI from the V-Ray light properties;
Export VRayObjectSelect RE to a .vrscene file;
Change V-Ray installation environment variables;
Adding progress bar in Standalone VFB;
V-Ray Implement Qt based UI for V-Ray/GPU render settings dialogs;

V-Ray GPU

Improve GPU Rounded corners in VRayEdgesTex;
Support for "Result affect" in VRayDirt;
Change GPU clamp to work as CPU clamp;
Autovoxelize dynamic geometry in V-Ray GPU;
Use 16-bit quantization of float point value for NanoVDB;
Scatter Surface Map support for noise/procedural maps and XYZ uvwgens in Std CPU;
Support unlimited number of user attributes per node;

VRayMtl

Improve Тhin Film controls;
Shadow opacity optimizations;
Texture slots for fog depth and translucency amount;
Remove Glossy Fresnel option;
Introduce a more accurate metallic Fresnel;

VRayVolumeGrid

The data in AUR files in the Standalone Preview and Cache Converter;
Wetting checkbox animatable in 3ds Max;
Speed up render start with thousands of vrscene simulator copies;
Recognize by default Velocity(x), Velocity(y) and Velocity(z) channels from VDBs from thinkingParticles;
Increase the default Velocity Streamline Length from 5 to 20 for Max;
Update OpenVDB to the latest available;

V-Ray, VRayEnvironmentFog, VRayFur, VRayHairFarmMod/VRayOrnatrixMod, VRayInstancer

Memory optimization for VRenderInstance;

VRayEnvironmentFog, VRayAerialPerspective

Add an "affect alpha" option in the VRayEnvironmentFog and VRayAerialPerspective;

V-Ray Bitmap to VRayBitmap converter/V-Ray scene converter, V-Ray Toolbar

New icons for the V-Ray Toolbar;
Add the materials from the V-Ray Toolbar to the V-Ray Menu;

VFB

Double-clicking the VFB to zoom the area round the cursor;
Dither colors in the frame buffer to avoid banding with low-contrast gradients;
Add the Sharpen/Blur layer in the VFB2 MAXScript layer manager properties;
Create a separate library for collaboration integration;

VRayOSL, V-Ray

Batch execution of camera shaders;

VRaySun/VRaySky/VRayAerialPerspective, V-Ray GPU

GPU: Compute sky clouds on the GPU;

VRayColor2Bump

Implement Qt UI of VRayColor2Bump;
Optimize VrayColor2Bump to do 3 texture calls instead of 4;

VRayDirt

Grey out Streaks density and Blur in VRayDirt when the renderer is V-Ray GPU;

VRayGLSL, VRayOSL

Support for "null" widgets;

VRayOSL

AdvancedWood.osl export;

VRayMDL

Switch to MDL 1.5;

V-Ray, VRayPluginNode

Add output section to VRayNoiseTex;

VRayPluginNode

Add limited forward-compatibility to VRayPluginNode;

V-Ray, VRayScene

Add preview mode options for VRayScene node;

V-Ray Bitmap to VRayBitmap converter/V-Ray scene converter

Support conversion of the CoronaPhysicalMtl through the V-Ray scene converter;

VRaySun/VRaySky/VRayAerialPerspective

Implement Qt UI of VRaySky;
The VRaySky map as environment background should be available for preview in the viewport;

VRaySwitchMtl

Implement Qt UI of VRaySwitchMtl;

VRayTriplanarTex

"Use displaced surface" option in VRayTriplanarTex for diffuse;
Implement Qt UI of VRayTriplanarTex;
Make "By node handle" the default random mode for VRayTriplanarTex;

Bug fixes

V-Ray

Crash on export with Chaos Scatter and assigned surface color on the source object when the distribute-on object does not have any texture to be used as a base map;
Animated cloud parameters in VRaySun are not exported with frame range;
Render to Texture crashes when there is a geometry with VRayDisplacement in the scene;
Any changes to Render region resets Real Zoom during an IPR session;
Slow memory release with many VRayProxies;
VRayEnmesh is not tiled in the negative UV direction respective to the uvw gizmo of the base object;
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*> support;
Diffuse artifacts with anisotropic reflections and sheen or diffuse roughness;
MDL displacement is not exported correctly;
VRayScannedMtl with triplanаr mapping and VRayBlendMtl renders differently when exported;
Metadata from VRayOptionRE is not saved in tiled exr;
Spurious crash when starting viewport IPR using V-Ray GPU;
V-Ray crashes if there are very long strings in "Object Properies -> User Defined";
VRayBlend's sub-materials are not exported with VRayMtlSelect RE;
Crash on scene save in 3ds max 2017 after Cosmos import and creating light or geometry from V-Ray Toolbar;
V-Ray proxy does not update the "preview override" correctly;
VRayDecal creation/material assignment not registered in RT IPR (RT CPU & GPU);
IPR crash when render Proxy with bump material inside .vrscene node;
Animated Near and Far distance in Falloff Map with Distance Blending mode are not exported;
3ds Max crashes to desktop when exporting specific scene with TyFlow;
Camera motion blur is always active on GPU in 3ds Max;
Crash during V-Ray CPU IPR if decal creation is canceled;
Difference in V-Ray Standalone with mapped GradientRamp for mapping values above 1;
VRayCarPaintMtl2's displacement is not exported;
TexFalloff used for opacity is rendering differently in IPR and production;
Render difference with Object Visibility in V-Ray Standalone;
Support for export of animated OSL shaders and MB;
Visibility option is ignored on RailClone object when using the original source material on export;
Discrepancy with Physical camera's DOF with empty custom texture slot;
Crash to desktop when using instanced shapes in Pflow with a normal mapped material;
Crash in 3ds Max when rendering VRayScene object with VRayUVWRandomizer used in its vrscene;
Artifacts when using "reflect on back side" with glossiness<1 and objects with the Bend modifier;
The 'Custom Scaling Size' Windows settings causes text and button overlays in the V-Ray Light Lister;
Gradient ramp as bump is not working in V-Ray Standalone;
Hair cache is not cleared with Ortnatrix .abc in VRayProxy;
Difference in VRayMtl with fog between opacity_mode 0 and 2;
tyFlow particles rendered with Particle Shader have too strong motion blur when rendered with V-Ray Standalone or V-Ray GPU;
LPE light tags support;
VRayNormalMap with a map in the Bump map slot doesn't render with Standalone;
VRayDecal with material displacement doesn't work properly when projected on excluded displaced object;
Discrepancies between Max and Standalone with VRayMultiSubTex's Random by Instance ID when VRayProxies are instanced by VRayInstancer;
ChaosScatterSurfaceColor map does not work properly when applied to VRayProxy;
Light position wrong for lamps imported from Cosmos;
Wrong viewport preview with visibility overrides in VRayProxy loading same mesh file;
Wrong translucency with Multi/Sub-Object material on instanced objects when original geometry is hidden;
Crash with ChaosScatter during IPR when deleting/undoing random instances while Instance mode is selected;
Crash with ChaosScatter when having mapped transformations scale slot with Legacy mode chosen;
Typo in V-Ray Proxy Menu (Bounging instead of Bounding);
Exception in V-Ray GPU with .vrscene node when rendering sequence;
Crash with empty VRayEnmesh reference objects list in V-Ray Standalone;
VRayLightSelect produces black pixels with glossy materials with black fog color;
Standalone crashes with specific scene with VRayEnmesh;
Deep breaks VRayMtlReflectGlossinesss when deep fragment by Z-Depth is used;
Animated Clouds are not affected by the timeline when rendering in GPU;
Blue tint on material preview swatch when 'Show background' option is enabled in 3ds max 2023;
Adaptive dome light artifacts in scene with V-Ray Dome and multiple IES lights;

V-Ray, V-Ray GPU

Crash in V-Ray GPU IPR with material editor and tyFlow's Position Raycast and Mapping operators;
Projections using Spherical camera are not rendered correctly with V-Ray GPU;
Instanced textured VRayLights don't share loaded textures;
tyFlow particles rendered with Particle Shader have wrong positions in V-Ray Standalone and V-Ray GPU;
VRayMtl with translucency is not rendered properly after resuming a render using RTX mode of V-Ray GPU and Light cache;
Disable glossy Fresnel for ior<1;
V-Ray Mtl energy compensation increases the render time when reflect on backside is used;

V-Ray GPU

Scene with Light Cache crashes if run in parallel on Linux;
The 3ds Max Tiles textures stopped rendering with CUDA;
Cuda error 700 when rendering specific scene file with multi/sub materials;
VRayCryptomatte is not working with kernel 3;
Discrepancy in the Light cache when using Self illumination material;
Cuda error 700 when rendering specific scene file with deformable geometry and multi/sub materials;
Wrong render of VRayMultiSubTex on geometry with motion blur;
Incorrect render with VRayEdgesTex on subdivided geometry;
Incorrect render with Forest Color texture in Get ID from Element mode;
OOC related crashes in V-Ray GPU;
Artifacts on specific scene with VRayMtl SSS translucency;
Crash with Optix Nvlink and kernel3;
Crash with specific Forest Pro object and GPU light cache in hybrid mode;
Crash when rendering to texture and geometry with displacement;
Wrong fog color alpha results when refraction set to affect all channels;
V-Ray GPU crashes when rendering specific scene with RTX or OOC;
Wrong render with SSS2;
The alpha of a transparent VRayMaterial is not working correctly;
V-Ray Next GPU produces different alpha compared to the V-Ray in a specific case;
Regression with alpha of refractive materials in Beta 2;
Cache converter crashes with VDB grids which have vector velocity;
V-Ray GPU crashes on machines which physically do not have GPU;
Excessive memory usage on GPU LC, plus decreased performance on some scenes;
Crash with GPU Light cache subdivisions set to 2000 and sample size >0.1;
Unintentional overlap of enum values in OCLDynMeshFlags;
Qt device select tool crashes on startup;
Crash with Physical camera's position constraint ;
Crash when rendering specific alembic particles file;
Some threads never finish with low_gpu_thread_priority=1;
V-Ray GPU produces different alpha compared to V-Ray;
GPU Light cache freezes when rendering animation with specific scenes on machine with multiple gpu cards;

V-Ray, VRayDecal, V-Ray GPU

VRayDecal to work with VRayUserScalar/VRayUserColor;
Incorrect results with VRayDecal during IPR debug shading;
VRayDecal doesn't work with VRayFur and Ornatrix in V-Ray GPU;

V-Ray, VRayEnmesh

Crash when scaling the gizmo of VRayEnmesh;

V-Ray GPU, VRayOSL

Crash while attaching OSL Map to more than one material during GPU IPR;

VRayOSL

Crash with animated OSL shaders on GPU;
Crash on IPR refresh with multiple materials connected to the same OSL map;
VRayOSLOutputSelector resets on scene reload when Quick Shader is enabled;
Slow loading of AdvancedWood.osl in VRayOSLTex;
OSL Map renders with default values of color parameters when exported;
Crash with MDL materials which rely on VDF functions;
OSL shaders as VRayDecal mask are not marked as graph_owner when exporting from Max;
Animation exporting for the OSL plugin in Max has stopped working;
Crash with export of animated HDRIEnviron.osl;
Missing mx_funcs.h file error when exporting Max OSL Map;
OSL in VRayDisplacementMod is not exported;
Animated OSL renders with its default values on GPU when Мotion blur is enabled;
Shader graphs break at VRayOSLOutputSelector node;
Export of two and four-component color values;
The r component of color2 is not exported;
Crash with VRayOSLTex and trace() function;
Export of multiple shaders containing vector-like structures;
Crash with output selectors and missing VRAY_OSL_PATH;
SimpleOcean.osl doesn't get rendered with VRayOSLTex;
Scrambled parameter hints in OSL;

VRaySun/VRaySky/VRayAerialPerspective

Thickness parameter not changing Clouds' thickness with values above 1000;

VRayVolumeGrid

The caches are appearing sliced or are not visible in the viewport when the GPU Preview and Smoke Opacity Modulate options are enabled;
Smoothed Velocity channel of VDB caches incorrectly produces very large or very small scale;
Noise with Fire simulation and reflective material with glossy below 1;
Light links don't work in Volumetric mode with V-Ray 6 in 3ds Max;
Тhe grid velocity from the vector "vel" channel of imported VDB caches is not the correct scale;
Grid previews disappear when switching to "Velocity" Grid Blend mode after changing the Input Play Speed to <1 while the Grid Blend mode was a different one;
Grid simulation with high velocity using Adaptive Grid and Precise Tracing Grid Blend mode appears chopped apart;
The 'Only if Selected' preview option does not work for the Velocity Streamlines in 3ds Max;
Shadow, Raw Shadow, GI, Raw GI, Light Select and Lighting render elements don't render correctly in Phoenix Volume Shader with enabled "Volume Light Cache" in 3ds Max;

V-Ray, VRayDecal, VRayFur, VRayPhysicalCamera

Composite map as a VRayDecal mask does not render on scene open;

V-Ray, VRayEnvironmentFog

V-Ray IPR crashes with VRayEnvironmentFog and Target Directional Light with Atmosphere shadows on;

V-Ray, VRayHairMtl

Incorrect default value of the IOR map multiplier in VRayHairNextMtl;

VFB

ICC correction from env. variable does not work in VFB2;
Crash when loading image with saved OCIO correction and multiple display devices in the config;
The selected color space for OCIO is blank when using specific modified OCIO file in 3ds Max 2019;
The "All" LightMix parameters values are not saved to presets and history;
VFB settings are not used when rendering through BackBurner;
Error deleting the root VFB layer with vfbControl;

VFB Settings

V-Ray log verbose level to 4 from Render Setup is not displayed properly in VFB;

VFB, V-Ray

Missing cryptomatte mtl info if Forest proto nodes are hidden;

VRayClipper

VRayClipper incorrectly clips refractive objects;

VRayColor

Wrong gamma applied when changing parameters in VRayColor;
VRayColor maps get created with wrong gamma if an old map is present in the scene;

VRayDecal

Crash when changing decal angle parameters in Max 2019;
GPU IPR doesn't update over animated parameters for map used as mask in VRayDecal;

VRayDecal, V-Ray GPU

IPR crash with V-RayDecal;

VRayDenoiser/vdenoise.exe, V-Ray GPU

No device available error on test machine with AMD card only;
Compiling kernels for not selected device;

VRayEnmesh

Picking VRayProxy should not be allowed when picking objects for VRayEnmesh object list;
Crash when picking objects with no geometric data for VRayEnmesh objects list;
Crash when pressing the Remove button on VRayEnmesh with empty objects list;
VRayEnmesh produces wrong results when shaded with VRayTriplanarTex;
Memory leak in Enmesh in standalone;

VRayEnvironmentFog

Thinking Particles pLight (Omni) renders wrong inside V-Ray Environment Fog;

VRayGLSL

Inconsistent VRayOSLOutputSelector parameters count;
VRayMDLMtl: Missing tooltips;

VRayGLSL, V-Ray, V-Ray GPU

OSL bump maps that use object space coordinates don't work on GPU;

VRayGLSL, V-Ray, VRayDirt, VRaySoftBox

Crash with VRayDirt used as coat in VRayBlendMtl when IPR is running;

VRayGLSL, VRayOSL

VRayOSLTex doesn't accept negative values;
Support for "connectable" metadata;
Add support for screen space to OSL;
Surface tangents (dPdu, dPdv) render differently with VRayOSLTex and OSL Map;

VRayOSL, V-Ray

Broken transformations in camera shaders;

VRayOSL, V-Ray, VRayPhysicalCamera

Crash when applying a copy of a camera shader during IPR;

VRayMDL

MDL displacement doesn't work with interactive rendering on the GPU;

VRayMDL, VRayGLSL, VRayOSL

Crash with VRayDirt applied to VRayOSLTex;

VRayMtl

3ds Max doesn't match standalone with VRayMtl with stochastic opacity and fog color;
Several maxscript properties for VRayMtl are not following the material naming convention;
Unlocked Fresnel IOR is not preserved with Preserve Reflections in OverrideMtl when exported;
VRayMtl's animated map multipliers / color swatches are exported incorrectly;

VRayMultiSubTex

Material Editor UI freeze after Batch Load in VRayMultiSubTex with max 2019;

VRayPluginNode

Crash when loading different plugins in VRayPluginNodeTex;
Warning for unsupported plugin pops up lately when opening a scene with VRayNoiseTex;
TexRemap (vray plugin node texture) only supports VRay GPU;
VRayPluginNodeMtl dialog has texture output;
Export of VRayNoiseTex animated texture blend factors is not working properly;

V-Ray Toolbar

Error on undoing VRayToolbar Mesh light creation;
Create V-Ray Decal command is missing in the main menu;
Rare case of broken registry disables Vantage toolbar;