New features

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V-Ray

• Initial support for 3ds Max 2020

Modified features

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V-Ray

• Support for IES files containing the comma (",") symbol in the light's description

Bug fixes

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V-Ray

• Blowup and Auto Region Selected produce stretched results

• Crash when exporting vrscene to a non-existing directory

• Direct light selects are always propagated through refractions

• Drop action should fall back to default

• MaxScript error occurs with viewport menus when V-Ray is downgraded to an older version with no viewport IPR support

• Separate VRayCryptomatte REs names are not exported to .vrscene

• Wrong keyframes export to .vrscene, breaking animation rendering

V-Ray GPU

• Viewport IPR has wrong perspective when switching the active viewport from orthographic projection

• VRayDenoiser is not always applied on the complete pass

• VRaySamperInfo render element is not exported

• Wrong Object XYZ texture mapping for Volume grids rendered

VFB

• Color corrections panel is missing when is maximized during IPR session

• Lightness color correction with values close to zero lead to artifacts in Lens Effects results

VRayPhysicalCamera

• Vertical shift is reset in the viewport preview

VRayProxy

• "Expand # to frame number" doesn't work in the viewport

VRayVolumeGrid

• Volume grids loaded from OpenVDB caches that contain internal rotation render clipped with V-Ray GPU

.vrscene exporter

• Crash when trying to export vrscene to a non-existent folder

• Decimal separator changes randomly on every export in a specific scene

Installer

• Silent uninstall does not work for V-Ray Next

Modified features

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V-Ray

• Reduce messages about invalid bump normals

V-Ray IPR

• Do not calculate render elements (except denoiser) for viewport IPR

V-Ray GPU

• Consistent lighting render elements

VRayFastSSS2

• Hide "single scatter"'s Raytraced (refractive) and Raytraced (solid) modes when V-Ray GPU is current renderer as they are incompatible

VRayProxy

• Alembic meshes exported from Phoenix for 3ds Max 2019 can now be rendered with motion blur

VRayVolumeGrid

• Add empty grid size and resolution options to the user interface

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

Bug fixes

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V-Ray

• Artifacts in alpha channel with many transparent objects

• Incorrect lighting elements on matte objects when "Consistent lighting elements" option is enabled

• Lighting elements are not propagated through refractions with consistent lighting elements enabled

• Lighting from VRayLightMtl with direct illumination is missing in consistent render elements output

V-Ray IPR

• Crash with VRayProxy when switching rendering between viewport and VFB

• Unhiding by category is not updated

• Viewport IPR option is missing in non-English 3ds Max instances

V-Ray GPU

• Alembic VRayProxy copies randomly disappear (since 4.10.01)

• Artifacts with matte and Adaptive Dome light

• Crash when rendering animation sequence with DR and animated lights

• Crash when stopping viewport IPR during compiling kernels phase

• Gradient Ramp stops working when moving the time slider in V-Ray GPU IPR with motion blur

• Production rendering of a sequence with deleted particle source for VRayInstancer returns error (since 4.10.01)

• VRayProxy updating animation stops when its Object ID is changed during IPR (since 4.10.01)

VRayFur

• Animated parameters are not exported

• Wrong placement with selected faces in .vrscenes

VRayLight

• Some spinners in the UI for disabled properties

VRayMDL

• Materials with material.ior that depends on a material parameter crash in V-Ray GPU IPR

VRayOptionRE

• Crash to desktop when render element is placed last in the list

VRayPluginNode

• Crash to desktop with VRayPluginNodeMtl in 3ds Max 2013 (since 4.10.01)

VRayScannedMtl

• Different buckets in VRayDiffuseFilter and VRayReflection from DR hosts

VRayVolumeGrid

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

ply2vrmesh.exe

• The -velocityAttrName parameter does not work for Alembic input files

New features

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V-Ray/V-Ray GPU

• Add Nitrous viewport IPR support

V-Ray GPU

• Add bucket rendering support

• Add support for the Cryptomatte render element when in bucket mode

• On-demand texture mode support for IPR

• Support for VRayMtl refraction dispersion

V-Ray Cloud

• Lighting Analysis render element support

VRayGLSL

• Ability to read vertex color and vertex alpha from within shaders

VRayInstancer

• Add instancing mode "By particleInteger"

VRayNoiseTex

• A new texmap based on VRayPluginNode that renders the same both on V-Ray and V-Ray GPU and in V-Ray Standalone

VRayHairNextMtl

• Added Glint and Glitter controls

VRayPhysicalCamera

• Rolling shutter effect for motion blur

VRayVolumeGrid

• Add a .getFrameInfo() MAXScript function that retrieves the currently loaded frame info string

• Add support for NVLink for GPU Volumetrics rendering

• Add support for textures in GPU volumetrics

• Implement render and preview of instanced nodes

• Support for instancing volume grids and Particle Shaders using VRayInstancer in 3ds Max

• Support for Scene and Object XRefs

VFB

• Add "Save in image" option to the LUT color correction

• Add Weight parameter for the LUT color correction

• Add an option to save image color corrections to raw .exr and .vrimg files

• Reworked lens bloom and glare lens effects calculation

Modified features

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V-Ray

• Lens effects memory and speed improvements

• Improve lighting render elements consistency, automatically enabled for new scenes and when using the adaptive dome light

• Improve light cache preview

• Hide the legacy VRayMap

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

• Add Chinese tooltip translations

• Add a parameter for additional control of the auto-exposure (renderers.current.camera_autoExposure_compensation)

V-Ray IPR

• Support for most atmospheric effects in IPR mode

• Improve interactive responsiveness with heavy scenes

V-Ray GPU

• Improved image sampling with many (more than 1k) samples efficiency

• Add support for RGB Tint and RGB Multiply textures

• Faster calculations VRayFastSSS2 materials

• Grey out the unsupported subdivs and cutoff parameters for lights, materials and textures

• Reduce memory usage with motion blur

• Speed up loading of 8-bit textures

• Support for "Affect background" with the bucket sampler

• Faster geometry updates during IPR

• Add a warning if there is an unsupported render/bake element

• Add Alembic visibility_list support for VRayProxy

• Add support for GrowFX

V-Ray Cloud

• Add support for the Waves texmap

• Export color corrections settings in .vrscene files

• Support for Dent Map

VRayDisplacementMod

• Improve "Keep continuity" option to weld seams at vertices too

VRayHDRI

• Support for the <frameNum> tag

VRayInstancer

• Improve speed during scene preparation

VRayGLSL/VRayMDL

• Add support for "C++/CPU" CUDA devices rendering

VRayOrnatrixMod

• Implement Ornatrix v6 support for optimized hair data access

• Utilize the width data from the new OX Change Width modifier

VRayOSL

• Implemented the supported wrap modes

• Add more parameters to the vray_subsurface closure

VRayPluginNode

• Add a short description info based on the plugin description

VRayProxy

• Read proxy files on demand so that only visible proxies are loaded

VRayScene

• Instancer is not shown in the viewport

VRayLightSelect

• Add Include/Exclude list by layer selection

VRayOptionRE

• Ability to update the exr metadata parameter in VRayOptionRE with a per-frame MaxScript callback

VRayUnclampedColor

• Remove the "color mapping" parameter

VRayVolumeGrid

• Expose the grid-based motion blur algorithm from Phoenix FD 3.00.01 for use via the 'mbgrid' script parameter

• Support for the new transformation model of OpenVDB caches from FumeFX 5

VFB

• Add docking support for the main window (enabled by the VRAY_VFB_DOCKABLE environment variable)

• Use text labels for the flyout buttons

• Lens effects size to accept values lower than 1.0

V-Ray Toolbar

• Align the newly created camera from "V-Ray Physical Camera" button

V-Ray Bitmap to VRayHDRI converter

• Improve responsiveness and conversion speed

• The "Half" precision option should be on by default

vdenoise.exe

• Ability to apply lens effects from .vrscene files

VRayDenoiser

• NVIDIA AI denoiser uses less GPU memory for denoising

Bug fixes

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V-Ray

• Warning messages about invalid bump normals should be printed just once per material

• Reduce slowdown due to repeating attempts to load missing texture files in case many materials refer them

• Very slow elliptical filtering with tiled textures

• Crash with region rendering, with render elements and Previous render set to Darken

• Crash with Forest Pro with VRayLightMtl with Direct illumination enabled

• Rare crash with infinitely recursive processing of 3ds Max progress bar events

• Different brightness with high-resolution renderings with Auto Exposure enabled

• Crash when rendering VRayLightMtl and VRayExtraTex with the same MultiTexture

• Artifacts with adaptive lights in different situations

• The "Direct visualization" option for caustics doesn't work

• Starting a production render after IPR may cancel immediately in some scenes

• Artifacts with Phoenix FD Ocean with Ocean Displacement

• BerconTile map has wrong mapping rendering from .vrscenes

• Different buckets with DR and Auto Exposure

• DR may have watermarks if network is unstable due to license failure

• Update change of geometry type per object (static or dynamic geometry) from the V-Ray object properties while rendering

• NaN pixels in VRayReflection render element

• Random crash when cancelling a batch render in 3ds Max

• Turning Frame Stamp off in the Render Setup is not working if it's on in the VFB

• Tooltip translations are not applied to VRayLight and the V-Ray render elements

VRayLight

• Artifacts in VRayShadows and VRayGlobalIllumination render elements with adaptive dome light or adaptive lights

• Adaptive dome light artifacts in specular in specific situations with max ray intensity enabled

• Artifacts with matte objects (matte for refl/refr = off) and adaptive dome light

• Artifacts with long and thin (like 7000x3) rectangle light

• Transparent objects with "cast shadows" off render black when there is a dome VRayLight behind them

• Dome light affects objects inside other objects with matte turned on

• Crash when rendering with a MAXScript plugin derived from VRayLight

VRayDenoiser

• Super bright lens effects when using the NVidia AI denoiser with very noisy images

V-Ray IPR

• Crash when removing vertices or polygons while IPR is running and motion blur is enabled

• Crash when modifying a texmap attached to VRayDisplacementMod

• Crash when undoing deletions of geometries with VRayDirt

• 3ds max crash when using VRayMetaball

• Stalling the whole UI in scenes with many VRayScannedMtls

• Crash when scrubbing the timeline in a scene with VRayMetaball

• Changes to VRaySphereFade parameters are not updated

• Random crash when restarting rendering with VRayOSL

• Crashes when modifying geometry during rendering

• Crash with animated Alembic files when dragging the time slider

• "Hidden lights" option is ignored

• Different exposure when using the Physical camera exposure Control and after toggling the Exposure option off-on with VRayPhysicalCamera

• Set focus distance doesn't update the DOF effect with VRayPhysicalCamera

• Rendering gets stuck when rendering XMesh object

• Black output with more than one VRayDenoiser render elements

V-Ray GPU

• Crash on the second frame with scenes containing lots of animated plugins

• When there is just one light in the scene, adaptive lights unnecessarily resets the progressive buffer

• Crash when loading new scene and IPR is still running

• Unhandled exception when aborting IPR during VRayProxy loading

• Crash when view dependent displacement is used with orthographic projection

• Unhandled exception when VRayPlane is shaded with a VRayLightMtl with Direct illumination enabled

• Wrong path expansion for IFL files if the full path to the IFL is not present

• V-Ray raw image file is saved as 16-bit EXR regardless of the saving settings if VRayOptionRE is not present

• IPR with DR hangs if you drag the time slider

• "RGB Level" of Output map has no effect on Mix map unless "Enable color Map" is checked

• VRayMtl with GGX brdf has incorrect glossiness in some situations

• Sequence rendering stops after few frames on scene with Falloff map

• VRayLight set to "Disc" produces wrong intensity when using the lumens unit

• Environment ZDepth color does not match V-Ray

• Black zdepth pass with "use camera clip boundaries" enabled and the physical camera's clipping planes disabled

• Artifacts with VRayScannedMtl with "Edges Displacement"

• Artifacts with adaptive lights

• Artifacts with adaptive lights and animation sequence

• Animated intensity of VRaySun is not taken into account in IPR

• Artifacts with displacement in scene with very narrow faces

• Geometry with VRayEdgesTex with "Show subtriangles" enabled renders black

• ExtraTex with Ramp driven by facing ratio internally uses no interpolation between positions

• Invisible Dome VRayLight is visible through VRay2SidedMtl with refractive VRayMtl and transparent VRayMtl

• Noisy alpha channel with shadow catcher objects

• Difference in GI generated by matte objects using BF or LC with glossy reflections

• The temperature attribute of the VRayRectLight doesn't work when the light is set to be a "Disc"

• Support for VRayLightMtl's Opacity

• Incorrect VRayPlane bump mapping

• Wrong IPR render with specific scene with render elements

• Fireflies with VRscan car-paint with flakes

• VRayFastSSS2 on GPU gives additional specular artifacts

• Flickering between the first and rest of the frames with Forest Pro and Mesh VRayLight

• VRayRefractionMap, VRayRefractionFilterMap, VRayExtraTexMap result is blank when baking textures

• The "Dim distance" parameter doesn't work with Dome Lights

• Cuda error 700 with VRayHairMtl with VRayHairInfoTex set to "Random by strand index"

• Displacement AutoBump for GPU does not produce correct results

• Issues with textures with either dimension larger than 32768 pixels

• The Invert option of nested Output rollout/map renders wrong

• Invert output option of VRayHDRI texmap is not properly considered when used with multiple materials

• Backburner marks job as failed when there is an error in V-Ray messages for unsupported material

• Wrong render of VRayFur and Ornatrix objects when using VRayUserColor map

• VRayFastSSS2 is producing artifacts when a texture with black areas is loaded as a scatter radius texture

• VRayDiffuseFilter render element for VRayFastSSS2 is rendered incorrect

• VRayLightSelect render element for VRayFastSSS2 is rendered incorrect

• Wrong render of edgesTex on subdivision surfaces

• Artifacts with VRayScannedMtl and Bump multiplier

• VRayEdgesTex not showing up in diffuse channel with IPR

• Random crash with specific heavy scene with animation

• Tint override in Forest Color is ignored when there is texture randomization

• Unhandled exception when changing SSS materials during IPR

• Crash with certain GLSL materials in BRDF mode

• Crash when loading with a scene where geometry map channel info is inconsistent with face count

• SSS artifacts on voxel edges of proxy object due to different voxel splitting on GPU

• Crash when rendering animation with VRayProxy with multiple voxels

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

• Matte doesn't work with Multi/Sub-object materials

• Textures from IFL are not updating correctly during IPR

• Animated clipping plane of VRayPhysicalCamera is not exported to .vrscene

• Crash on update with animated meshes with motion blur during IPR

• If there are unsupported elements baking output is wrong due to messed elements order

• Unhandled exception with VRayPlane or VRayFur converted to mesh light

• If V-Ray is the current render engine, V-Ray GPU utilization settings are exported with wrong values

• Composite map with empty layers is not exported correctly

• Noise threshold reports are misleading

• Forest Pack "Limit to Visibility" is not properly exported to .vrscene when the camera is animated

• Body object is always exported with draft quality

• Maxscript command vrayUpdateIPR() stops the IPR

V-Ray Cloud

• Export stats dialog should not be closed on scene node deletion

• Animated tilt and shift parameters of physical cameras are not exported in .vrscenes

• Animated color of the Falloff map is not exported

• Animated VRayPhysicalCamera target movement is not exported

• Flipped textures in VRayOSL

• Camera animation discrepancies with V-Ray

• Export VRayWireColor render element

• VRayNormalMap assigned to VRayBumpMtl is not exported

• No motion blur is rendered on the last frame when exporting an animation frame range

• Vector displacement in "Object" mode produces wrong result

• Invalid colors when rendering scenes with two VRay2SidedMtl materials nested in each other

• Mesh VRayClipper doesn't work if the mesh has animated parameters

• Animated parameters of VRayMtl are not exported

• Physical cameras with offset pivots are not exported properly

• Ornatrix feathers are not exported

• Animated intensity of VRayIES lights is not exported

• Animated Multiplier of VRayLights is not exported

• Animated VRaySun position is not exported

• Export for VRayMtlID render element in .vrscene files

• Texmap plugged into a texture slot of the Tiles map is rendered even if turned off

• Displacement turned off in the V-Ray Global Switches still renders

• Wrong material rendered when Falloff map is used

• Animated VRayPhysicalCamera "Zoom factor" is not exported

• Forest Pack object with "Visible to Camera" disabled still renders

• Animated slice modifier resets Material object ID's when exporting animation in .vrscene

• Difference in render result when using MultiTexture

• Different result with V-Ray for invisible spherical VRayLight and VRayEnvironmentFog

• Material editor sample slots rendering slows down the vrscene export

• Wrong render time in V-Ray log when material editor is opened during IPR

• Wrong export of the Gain parameter of ColorMap

• Saving V-Ray raw image file and Separate render channels options are not exported

• Shutter offset of the Physical camera is not exported properly

• Exporting a .vrscene without animation always includes "//Frame at time 1" in the .vrscene file

• The option to lock the dome light texture orientation to the dome light viewport icon not taken into account when exporting animated .vrscene

• "Lights" option in Global Switches is ignored

VRayALSurfaceMtl

• Opacity slot not exported in .vrscenes

• Endless render when the SSS1/2/3 radius values are set to 0

VRayDistanceTex

• Crash when using the material editor while a Phoenix FD simulation that is evaluating a VRayDistanceTex is running

• Not working with particle systems loaded in its objects list

• Texmap is affected only by renderable objects in V-Ray GPU

VRayFur

• Different bend direction between V-Ray and V-Ray GPU

VRayFurStyler

• Crash when copied/cloned

VRayGLSL

• Error when merging scenes with GLSL shaders

• Anisotropy has wrong mapping and rotation

• Shaders with uninitialized samplers crash with V-Ray GPU

• GLSL materials cause V-Ray GPU to recompile kernels on each start

• Shaders use too much memory per thread

• vr_RayFlags has incorrect value with V-Ray GPU

• Vector displacement in "Object" mode does not work with V-Ray GPU

VRayGLSL/VRayMDL/VRayOSL

• Cloned or copied plugin may result in error

VRayGLSL/VRayMDL

• LLVM produces code for Skylake processors that causes crashes

• Crash with specific shader rendering with V-Ray GPU

VRayHDRI

• Undo doesn't work for Bitmap field

VRayIES

• Cloning a light causes it to render incorrectly

VRayInstancer

• Instances are rendered with the particle materials instead of the instanced geometry material

VRayMDL

• Param block error on scene load

• Crash when the material of the node is changed

• Empty material crashes 3ds Max when rendering with V-Ray GPU

VRayOrnatrixMod

• Crash with VRayHairNextMtl and motion blur

• ObjectSpace data per vertex of the hair is not working in V-Ray Next

• Per-vertex mapping for hairs' texmaps

VRayOSL

• Randomly rendering black

• Local assets are not found when rendering with V-Ray GPU

• OSL additional paths not working in 3ds MAX

• Crashes in V-Ray IPR

• Bitmap texture buttons don't work in Slate Material Editor

• UI shows string popups as texture buttons

VRayPluginNode

• Ability to use V-Ray PluginNodeTex in bump and displacement material slots

• ObjectXYZ and WorldXYZ mapping modes

• Plugins with texture inputs don't have an input to load a bitmap file

• Mtl plugins have no inputs

• Material with BRDFCarPaint and BRDFStochasticFlakes renders black with V-Ray GPU

• Crash with TexFalloff or TexCellular when assigned to material

• Plugin parameters have reverse tab order of UI controls

• Wrong initial render with MtlOverride plugin

• Gaps along the boundaries of TexBitmap plugin

• Animated parameters are not saved with scene

• Parameters' tooltips and ranges are not correctly set

• Texmap buttons are not immediately updated in 3ds Max 2013-2016

VRayProxy

• Crash when opening a scene with Аlembic preview file

• Preview cache sometimes prevents proper rendering with Alembic offset

• Tooltip text listed in Parameter Wiring dialog

VRayScene

• Crash with .vrscene sequence and missing first file

• Crash when using UV-coordinates from an imported .vscene

• VRayExtraTex with a bitmap is blurred on objects from the .vrscene

• Viewport representation of VRayLights from vrscenes is wrong

VRayVolumeGrid

• Missing buckets with moving volume grid in Volumetric Geometry mode and motion blur

• Render Cutter in Isosurface mode of a volume grid with VRayMtl with Affect Shadows blocks GI rays for geometry inside the Cutter with V-Ray Next

• Incorrect light intensity with Approximate Scattering using V-Ray GPU

• Random crash when rendering a volume grid in Volumetric Geometry mode with V-Ray Velocity Render element

• VRayVelocity render element doesn't work in Volumetric Geometry mode

• Exception Compiling Geometry when attempting to start IPR in Mesh, Ocean Mesh or Cap Mesh mode

• Volume renders wrong on CPU when the grid is moving with the camera and Motion Blur and the Phoenix Light Cache are used

• Buckets in VRayLightSelect render element when rendering in Volumetric Geometry mode with Phoenix Light Cache enabled

• Rendering a scene containing a volume grid and a Phoenix FD Simulator causes a crash with V-Ray GPU

• Even when there aren't active render elements warnings appear in V-Ray messages

• Incorrect preview when volume grid's pivot point is offset

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

• Warning: Emit light isn't supported on V-Ray GPU

VFB

• Crash when enabling Bloom/Glare while A/B compare is enabled

• Lens effects Threshold parameter value is reset on scene open

• LUT color correction is not loaded properly from 3ds Max scene files

• Blank VFB when comparing images from history after effectResult is generated

• Freezes randomly if playing with it while rendering

• Maximized VFB returns to previous size on render start on 3ds Max 2018-2019

• Buckets shift slightly when completed

V-Ray scene converter

• Standard materials are converted to VRayMtl with unlocked highlights and reflection glossiness

VRayDenoiser/vdenoise.exe

• NVIDIA AI denoiser is not releasing the GPU memory after the denoise calculation