New features

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VRayEdgesTex

• Add mapped multiplier to control the rounded corners' radius

Modified features

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V-Ray

• Add a warning when there are Render Elements with filtering off and Progressive Sampler

• Avoid saving the "Shademap export" helper channel to image files

• Render Raytrace material as black to avoid interfering with shading

VRayOSL

• Increase width of the string widgets

VRaySamplerInfo

• Add tangent and bitangent modes in object space

VRayVolumeGrid

• Copy-paste support for render gradients and curves

VFB

• Revert the IPR zoom modificator to Ctrl+Shift/Ctrl

Bug fixes

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V-Ray

• Artifacts with VRayEnvironmentFog and Adaptive dome light

• Debug shading in Viewport IPR MaxScript error on 3ds Max2017

• Debug shading in Viewport IPR menus produce error after V-Ray is uninstalled

• EXR images are saved as "incomplete" (since 4.20.00)

• Memory tracking reports wrong month number on the timestamps

• Rendering a specific scene with disc lights produces incorrect results on the second render

• Spurious skipping of a subframe when rendering using PresenZ camera and DR

• Using "File" > "New" > "Keep objects and hierarchy" may cause a crash if the scene has VRayHDRI maps

V-Ray IPR

• Attempting to stop rendering may freeze 3ds Max

• Changes to displacement maps are not updated (since 4.20.00)

• Crash if the scene is modified while V-Ray is preparing objects

• Crash when copying objects with Override material

• Crash when creating new objects while V-Ray is preparing geometry

• Crash when rendering with CoronaMtl

• Crash with 3D displacement with "Keep continuity" enabled if the scene is modified while V-Ray is preparing objects

• Creation of dome light from the V-Ray toolbar is not correctly detected

• Deleting a dome light is not reflected

• Inconsistent lighting when rotating dome light

• Incorrect direct illumination of VRayLightMtl

• Lights with animated multiplier don't update

• Moving an instance of a displaced object during rendering may cause a crash

• Unhandled exception when exporting a .vrmesh file during rendering

V-Ray GPU

• Crash with adaptive lights with more than 110 000 lights

• Closing the VFB while exporting nodes crashes 3ds Max

• Crash when rendering VRayInstancer with many particles and VRayVolumeGrid

• Crash when sliding the timeline during IPR and then stop rendering

• Crash with light cache when mesh acceleration types in MB segment's ends are different

• Every 10-th UV tile (e.g. 1010, 1020, 1030) is not rendered

• Incorrect light cache retrace amount in some cases

• Incorrectly strong bump effect with normal maps and VRayAlSurfaceMtl

• Rounded corners аrе not rendered with Bucket sampler in scenes with no direct lighting

• Vertical FOV with spherical panoramic camera is ignored unless a 360 degree horizontal FOV override is used

• VRayALSurfaceMtl with rounded edges render wrong

• VRayALSurfaceMtl's SSS is darker in the areas reflecting objects with VRayFastSSS2

V-Ray Cloud

• Color Correction texmap is rendered wrong with 32-bit images

• Difference in render with VRayEdgesTex in the VRayMtl displacement slot

VRayHairMtl

• Does not compose correctly when the "consistent lighting elements" option is enabled

VRayOSL

• Dropdown parameters reset when refocusing the node in the Slate Material Editor

• Tooltips for shader parameters are displayed in the wrong places

VRayPluginNode

• MtlRoundEdges plugin is not working in "Convex only" and "Concave only"

• Renders different than V-Ray Standalone in bump slots

• Scenes saved with blacklisted plugins should still open correctly

VRayToonMtl

• Don't bake gamma into the gradients of VRayToonMtl

• Export to .vrscene

VRayVolumeGrid

• Brighter results in VRayLighting render element with Consistent lighting elements turned on

• Crash with caches over 2.1 billion voxels with Phoenix Light Cache since Phoenix 3.12

VFB

• Crash when loading a 3ds Max scene from the history

• Dock history option causes IPR restart

• The tooltip for the debug shading is wrong

New features

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V-Ray Cloud

• Indirect light select modes support

V-Ray GPU/V-Ray Cloud

• Support for Substance 2 maps

V-Ray GPU

• Add support for VRayCurvature texture

• Support for VRayDistanceTex

• VRayALSurfaceMtl shader support

V-Ray IPR

• Overlay progress notifications in the Viewport IPR

V-Ray/V-Ray GPU

• Debug Shading with various modes during IPR

• Hash map based light cache

• Native rendering of Corona scatter instances

V-Ray

• Add V-Ray memory tracking support

• Baking elements support for opacity map when doing projection baking

• Implement barycentric mode in the VRaySamplerInfoTex

VFB

• Ability to do test renders at lower resolution

• Add keyboard shortcuts for mouse actions in IPR

VRayOSL

• Implement the 3ds Max OSL shading graph support

VRayToonMtl

• Add V-Ray's Cel shader implementation support

VRayVolumeGrid

• Add support for V-Ray GPU render elements: VRayNormals, VRaySamplerInfo, VRayZDepth, VRayVelocity, VRayGI, VRayDiffuseFilter, VRayShadows, VRayObjectID, VRayRenderID

• Modulate or replace the Fire Opacity with a texture in "Use Own Opacity" mode

Modified features

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.vrscene exporter

• Disable 3ds Max UI updates to avoid slowdown with animation export due to redrawing heavy scenes

• Nozon PresenZ plugin parameters export

• Optimize export time with particle systems

• Support for pixel aspect ratio

V-Ray Bitmap to VRayHDRI converter

• Should be usable through MAXScript

• Use maketx instead of img2tiledexr by default

V-Ray Cloud

• Add a warning when using VRayAmbientLight and Adaptive Lights

V-Ray GPU

• Add UI for resumable rendering with GPU bucket sampler

• Add an option to save color corrections for the raw image output

• Add support for VRayExtraTex exclude/include lists

• Improve Light Linker memory efficiency

• Remove OpenCL engine from the UI

• Support for multiple map channels for bitmaps in VRayGLSL

V-Ray Toolbar

• Add the "Submit to Chaos Cloud rendering" as separate button

V-Ray

• Add a warning when there are render elements with filtering off and Progressive sampler as they are incompatible

• Check for version compatibility between the DR servers and client

• Displacement/subdivision tessellation outside the camera frustum should be coarser (reduces memory usage)

• Display a warning when using Auto Exposure/White Balance with Region Render or Render Mask

• Faster production IPR with complex scenes

• Improve loading time for scenes with many V-Ray lights

• Improved sampling for scenes with many light sources

• Mitigate Windows freezing while rendering

• Move the Authorization and About rollouts to the Settings tab

• Optimized memory usage for scenes with many disc lights

• Print a warning if the VRayLog.txt file is written to C:\ or unaccessible path

• Print a warning when using the irradiance map with full light select elements

• Remove writing of V-Ray shade maps

• Update to Alembic 1.7.10

• Use lower resolution on HiDPI displays with Viewport IPR

V-RayMtl

• Better shadow terminator with strong bump maps

• Remove the highlight glossiness slots from UI in Slate Material Editor and disconnect the texmap

• Use the Oren-Nayar model for diffuse roughness

VFB

• Ask to save the current modified scene when using the Open Scene command from History

VRayGLSL

• Increase the number of texture channels to 16

• Speedup compilation of shaders

VRayHairMtl

• Add support for "Position along strand absolute" mode

VRayLight

• Dome lights should be adaptive by default

VRayMDL/VRayGLSL/VRayOSL

• Implement an output selector for OSL

• Improved initial rollout states

VRayMDL

• Use GGX as fallback for unsupported microfacet BRDFs

VRayOSL

• Support for shaders that use the trace() OSL function in the 3ds Max OSLMap texture

VRaySamplerInfoTex

• Extend VRaySmaplerInfoRE with tangent and bitangent in uv space

VRayShadowMap

• Deprecate for future use

VRayVolumeGrid

• Show the mesh preview together with the voxel preview when both are enabled

• Speed up preview of AUR cache files by reading the grid channel data min-max range from their metadata

• Support for OpenVDB 5

Bug fixes

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.vrscene exporter

• Current frame number is not written to .vrscene when exporting a single frame

• MAXScript that exports .vrscene and then loads a render preset freezes 3ds Max

• Wrong export of Composite map with layers in “normal” mode

V-Ray Bitmap to VRayHDRI converter

• Wrong conversion of .exr textures with overridden gamma

V-Ray Cloud

• Animated clipping plane of 3ds Max Physical Camera is not exported to .vrscene

• Animated exposure options in Environment and Effects are not exported

• Camera Automatic vertical tilt doesn't work with animation

• Cellular map assigned to a refractive VRayMtl is renders with differences

• Crash with 3ds Max blackbody.osl with a texture which is not an OSL texmap

• Crash with Forest Pro with non-default V-Ray/object properties values

• Difference in Bump mapping with VRayHDRI

• Difference in the VRayZdepth render element when the VRayMtl refraction "Affect channels" is set to "All channels"

• Different bump seed info from BerconNoise

• Dome light's texture is not exported correctly in some cases with "Lock texture to icon" enabled

• Export animated depth of field from VRayPhysicalCamera, Physical Camera and render setup

• Export animated parameters that control camera exposure

• Forest Pack Edge mode is not exported to .vrscene files

• Forest Pack object with set object id is not rendered in the MultiMatte pass in Standalone and the cloud

• Inconsistencies and performance issues on rendering of motion-blurred VRayInstancer

• Mismatched channel names when outputting .vrimg and .EXR and there is a VRayDenoiser render element

• OpenEXR textures with gamma override do not render properly

• Output settings of maps are not exported properly when animated

• RailClone object used as VRayDistanceTex object did not respect "Renderable" object property

• Scenes with light linking renders a lot slower than in 3ds Max on multi-core machines

• Scenes with time display set to Frame: Ticks, non-zero ticks and motion blur render darker

• Support for the VRayScatterVolume material

• Top-Bottom output layout option in the VRayStereoscopic helper is not exported in .vrscenes

• VRayAlSurface produces incorrect GI pass

• VRayAlSurface renders differently

• VRayFur animation is not exported

• VRayPhysicalCamera animated "F-number" is not exported

• Visible to camera object property is not exported properly when there is VRayLightMtl with Direct Illumination on

• When using Auto exposure light cutoff threshold is applied prior to the EV adjustment

• Wrong export for VRayProxy file name parameter for proxy/alembic sequences

• Wrong results when "Affect shadows" is turned off in the refraction VRayMtl parameters

V-Ray GPU

• A scene with two VRayClippers in mesh mode is rendered incorrectly with V-Ray Standalone/V-Ray Cloud

• Add the "Previous render" function to

• Artifacts with VRayDisplacementMod and TriplanarTex

• Back faces of double sided VRayMtls are not rendered

• Black output when saving from the 3ds Max Common tab options and using Render Mask

• Black transparency effect in a scene with a lot of geometry stacked behind each other

• Buckets produce different results when rendering in hybrid mode

• CUDA errors when rendering a sequence with animated VRayClipper, dome light and reflective/refractive materials

• Crash in IPR when RailClone material is modified

• Crash in a scene with Forest Pro animated geometry with motion blur and VRayVelocity render element

• Crash on scene reset after rendering a scene with Forest Pro

• Crash when modifying materials of ForestPro objects during IPR

• Crash when rendering VRayProxy with VRayLightMtl (with direct illumination on) and motion blur

• Crash when rendering invalid light cache file

• Crash when uploading huge textures in full size

• Crash with specific scene rendering when turning off lights during IPR

• DR Bucket unsupported render element warning is erroneously shown

• Enable saving of the light cache

• Error 700 during IPR with on-demand texture size and override material

• Error 716 with VRayHairMtl and VRayHairNextMtl with older GPU drivers

• Excessive memory consumption with Bucket Sampler

• GLSL shaders that use the sqrt() function crash

• Geometries disappear during IPR when rendering with Render Mask Selected and moving a selected geometry

• IPR is locked to the projection instead of the current view

• Include/exclude linked objects from lights causes all child objects to be excluded too

• Low quality baked Spiral mode of Gradient Ramp in Anisotropy

• Memory leak with on-demand textures when used in IPR

• NaN pixels when rendering in hybrid

• Show VRaySwitchMtl as compatible

• Some scenes with VRayFur take much time before the rendering starts

• Stochastic flakes: missing secondary reflections

• UDIM textures are rendered black with On-demand mipmapping texture mode

• VRayDRBucket render element outputs black color with Progressive sampler is used

• VRayInstancer uses only the PRT particles from the initial frame

• Visible edges on geometry with VRay2SidedMtl and VRayNormalMap

• Wrong GI and shadow calculation with environment color different from black

• Wrong render when the first production render of the 3ds Max session is Orthographic

• Wrong rendering of animated VRayColor with motion blur

V-Ray IPR

• Animated amount of 2D VRayDisplacement is not updated between frames

• Assigning a new environment map is not reflected

• Crash on specific scene with cloned objects when picking material in the Slate Material Editor during Viewport IPR

• Crash when adjusting Gradient Ramp in VRayLight

• Crash when changing the topology of a newly copied object

• Crash when modifying 2D displacement amount after changing the texmap

• Crash when selecting existing geometry while creating geometry

• Crash when starting IPR in scene with objects with scripts as custom attributes

• Crash when turning on "Auto exposure" or "Auto white balance" during rendering

• Crash when tweaking VRayDisplacementMod in specific scene

• Crash with VRayInstancer and VRayMultiSubTex when scrubbing the timeline

• Crash with multi-threaded VRayInstancer when changing frames

• During rendering with "Auto exposure" enabled, the image may flicker slightly on each IPR update

• Opening the VFB during Viewport IPR causes rendering restart

• Render mask in texture mode does not work

• Use the color corrections from the VFB in Viewport IPR

• Using Array tool during rendering causes missing objects in 3ds Max 2017

• Viewport IPR can be started in multiple views using the Maximize Viewport Toggle

• Viewport IPR should not set the post effects rate to 100 if it was zero

V-Ray Toolbar

• Creating V-Ray Physical Camera produces an error on 3ds Max 2013

V-Ray/V-Ray Cloud

• Incorrect full light select element with VRayFastSSS2

V-Ray

• Adaptive dome light artifacts with invisible lights blocking the dome

• Artifact in reflection of object behind the camera with adaptive lights

• Crash with ProOptimizer modifier during compiling geometry

• Crash with animated GrowFX geometry instanced with ForestPro with animated instances

• Difference in GI between Max and Standalone with Adaptive Lights

• Double Sided material renders incorrectly if there is unsupported material input

• Extreme slowdown in very small area of a scene with dense hairs over SSS surface

• Flickering of distant light sources with the adaptive lights and many light sources

• Frames overwrite each other when saving frame sequences as .vrimg through the Max native render output dialog

• Lens effect generate wrong results with overbright pixels

• Long file paths are not visible in the Overwrite files list dialog

• Missing deep data in VRayLightSelect render element

• Missing effects result channel after changing Lens effects mode

• NaN or negative pixels in VRaySpecular render element

• Override material by Include doesn't work properly with grouped objects

• Raw images are still saved when canceling a render

• Resuming a bucket render resets the progress to zero

• Resuming a render with "Store direct light" disabled produces different buckets

• Setting the log file path with MAXScript has no effect if the Render Setup window is not open

• Unhandled exception with PFlow and TurboSmooth

• Using an OSL texture as bump map does not work in Standalone

• VRayZDepth element channels are named differently depending on VRayOptionRE in multipart EXR

• When using the "split channels" option, normals render elements should be stored without gamma

VFB

• "Export and render" from .vrscene exporter scales the VFB twice the scale factor on HiDPI displays

• Copy to stamp label is truncated on high DPI monitors

• EXR files loaded in the VFB do not have their integer REs displayed

• HSL color correction in the VFB is incorrect for very dark colors

• History not updated after deleting a .vrimg through file explorer

• Levels histogram is not updated when loading a file from history

• Save render settings with any .vrimg file saved by V-Ray (not only in the VFB history)

• Towards the end of the light cache calculations the progress bar starts going back

VRayClipper

• Artifact with clipper in open space scenes with dome light

• Clippers do not respect include list when included object is hidden

• Clipping objects outside of the include list if the objects that are in it are hidden

• Incorrect results with disabled "Clip lights geometry" and dome light rendering with V-Ray GPU

• Mesh clipper casts incorrect shadows

VRayColor

• Crash after Undo/Redo

VRayDisplacementMod

• Results with "Keep continuity" are incorrect when UVTILE textures are used

VRayFur

• Crash when rendering large areas with VRayFur

• Crash when rendering on VRayProxy with variable polygon count

VRayGLSL

• CUDA error 716 with VRayMDLMtl using bump

VRayIES

• Lights with no profile are rendered black when override intensity is set to “replace”

VRayInstancer

• Artifacts in V-Ray GPU/V-Ray Cloud using multi-segmented motion blur

• Interval discrepancy on motion-blurred instances with V-Ray Cloud

• Not rendering correctly with multi-segmented motion blur

VRayLight

• Textured and Disc lights do not generate caustics

VRayMDL/VRayGLSL/VRayOSL

• Error loading ParamBlock2 when merging a scenes containing shaders

VRayMetaball

• Unhandled exception when rendering PF events with VRayParticleColor shading

VRayMtl

• Metalness values different from 0.0 and 1.0 render incorrectly

VRayOSL/VRayGLSL

• Crash when rendering with V-Ray Standalone

VRayOSL

• Bump mapping is not working with VRayOSLTex

• Crash in IPR with VRayOSLTex in a specific scene

• Crash on post-Haswell processors

• Crash with VRayOSLTex with connected texture linked to VRayLightMtl with Direct Illumination on

• Loading and cloning an OSL node with in-place shader does not compile it automatically

• Reloading an OSL shader does not work

• Shaders do not load when loading a scene with a shader that contains an include directive

VRayOrnatrixMod

• Ornatrix additional mapping channels data is inaccessible

VRayPhysicalCamera

• Turning "Targeted" off crashes in IPR

VRayPluginNode

• Cloned plugins miss the texture slots links

VRayProxy

• Alembic proxy in bounding box preview mode or with preview override loads the whole geometry

• No motion blur with 3ds Max Fluids imported through Alembic

VRayScannedMtl

• Crash when selected in Material Editor due to invalid symbols in the file path

VRayVolumeGrid

• Cannot abort rendering by cancelling the pre-render progress windows

• Constant mesh rebuild in 3ds Max viewport when the timeline start is not an exact frame

• Crash when rendering a volume with Create Lights intersecting a geometry with a Light Material

• Crash when rendering empty volume grid with V-Ray GPU

• Crash when using one object as a render cutter for two volume grids

• Fire Lights keep illuminating the scene after the cache sequence ends during sequence render

• FumeFX 4 VDB caches are imported with offset Pivot point

• GPU Volumetric effects go missing when switching between Bucket and Progressive Sampler type in Volumetric Geometry mode

• Having many instances breaks smoke's occlusion by geometry

• Jittering with animated camera inside of a volume grid using V-Ray GPU

• Memory leak when rendering with GI and any V-Ray render elements

• Min-max channel range of AUR caches randomly displays very large numbers

• OpenVDB caches that contain internal rotation are rendered clipped with V-Ray GPU

• Optimize volumetric rendering when Smoke Opacity is modulated by a texture

• Phoenix lights from one volume grid do not illuminate some parts of other grids depending on the camera angle

• Rendering produces wrong normals render element results with V-Ray GPU

• Slow preview auto-reduction of large VDB caches compared to Phoenix FD

• Slow viewport preview when the timeline start is not an exact frame

• The warning about DR and local paths is still appearing even when there is no volume grid in the scene

• Using many chained texture maps in the volumetric shader produces different renders of the same frame when rendering repeatedly

• Very slow loading of OpenVDB files from network

• Volumes are rendered if the volume grid is hidden but "Create Lights Even If Not Renderable" is Enabled

• Voxel preview of temperature around 200 Kelvins with As Fire enabled draws bright red and pink voxels

• When two or more grids have any overlapping walls volumetrics aren't rendered correctly with V-Ray GPU

• Wrong Object XYZ texture mapping with V-Ray GPU

VRayWireColor

• No output for objects instanced with Forest Pro and VRayInstancer

ply2vrmesh.exe

• The -velocityAttrName parameter of ply2vrmesh does not work for Alembic files

vdenoise.exe

• The "skip existing images" config option still leaves a lot of per-frame processing with raw VFB output

• The vdenoise tool displays a warning when -frames is used with wildcard that specifies single file