New features

V-Ray/V-Ray GPU

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

V-Ray

• Initial support for direct rendering of CoronaMtl and most materials from the Corona material library

Modified features

VRayDenoiser

• Switch to Optix 5.1 for the NVidia AI denoiser

VRayGLSL/VRayOSL

• Added keyboard shortcuts, compile and reset options to QuickShader UI

VRayHDRI

• Improved performance for tiled .tx and .exr textures

VRayMDL

• Add support for Ward BRDF in MDL plugin

VRayScene

• Implement support for VRayCryptomatteElement

Bug fixes

Lens Analysis Tool

• Crashes when analyzing a photo manually

V-Ray GPU

• Blank images saved when used as texture baking renderer

• CUDA error 700 when turning off Lights while rendering in IPR

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

• Crash when cancelling a batch render in 3ds Max

• Crash when deleting VRayLights in specific scene

• Crash when deleting heavy geometry in specific scene

• Crash with BerconNoise and VRayDisplacementMod during IPR

• Crash with Displacement and Environment Fog during IPR

• Crash with Ornatrix (since 4.02.01)

• Crash with specific VRayProxy and displacement

• Disable refresh interactive VFB button as it doesn't work correctly in IPR

• IPR crashes with stereo mode set to Anaglyph(Red/Cyan)(Green/Magenta)

• Noisy alpha channel with shadow catcher objects

• Random crash when changing VRayLight options

• Unexpected render result with non-spherical Dome VRayLight and matte shadows

• Unhandled exception when moving the time slider with motion blur and OpenSubdiv

• VRayDirt's "double sided" parameter is not working correctly

• VRayHDRI with RGB multiplier in the Output rollout renders differently

• VRayOCIO does not work with bitmaps

• When there is just one light in the scene, adaptive lights v2 unnecessarily resets the progressive buffer

• When using displacement, textures are affected by the texture format setting

V-Ray scene converter

• Fix Opacity and Reflection Glossiness parameters conversion for CoronaSkinMtl

• Fix Reference node space mode conversion for CoronaTriplanar

V-Ray

• Artifacts with adaptive lights in a certain interior scenes

• Crash when modifying VRayInstancer material and switching to another frame during IPR

• Crash when rendering with DR (since 4.02.04)

• Crash when starting IPR after resetting a scene with DR

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

• Different brightness in high-res renderings with Auto Exposure

• Fix V-Ray Cloud scene submission broken animation export

• IPR crashes with Alembic hair in specific scene after stop

• Improve selection of VRayPhysicalCamera and VRayLight in the viewport

• Separate render channels output files are not named properly when saving to separate folders (since 4.02.03)

• Standard material diffuse texture and opacity map do not work with V-Ray Next

• Stuck at "Building embree moving trees" with multi segment motion blur

VFB

• Aspect ratio is changing when resizing VFB during IPR

• Closing the VFB window while 3ds Max is saving a VFB image causes 3ds Max to crash

• Image Info has to be cleared when loading a new image in VFB

VRay2SidedMtl

• Crash with animated submaterial on the second frame in V-Ray GPU

• Invalid colors with V-Ray Standalone when rendering scenes with two VRay2SidedMtl materials nested in each other

VRayDirt

• Crash when undoing deletions of geometries that are in Include/Exclude lists

VRayDistanceTex

• Crash during IPR (since 4.02.01)

VRayEnvironmentFog

• Crash with VRayEnvironmentFog with overlapping gizmos with coinciding far sides

VRayGLSL

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

VRayInstancer

• Crash when rendering with Thinking Particles (since 4.02.03)

• Fixed losing some particle groups during instancing

VRayOSL

• Crash during IPR

• Crash when selecting specific VRayOSLTex in material editor on scene open

• Flipped textures with OSL maps on V-Ray GPU

• OSL issues errors when output closures are not explicitly specified

• Renders black in IPR if attached to VRayExtraTex

VRayPluginNode

• Crash when a texmap used as a displacement map is being modified during IPR

VRayScene

• Camera settings from vrscene interfere with the camera in 3ds max

VRayVolumeGrid

• Caches containing a minus/dash sign before the # format can not be loaded

• Caches containing digits after the # format can not be loaded

• Crash when rendering with GPU as production after rendering with IPR

• Multiple overlapping volumes do not blend correctly with V-Ray GPU

New Features

VRayMtl

• Add "Metalness" parameter for easy support of PBR workflows

• Add a texmap slot for the GGX GTR tail falloff

VRayLightSelect

• Add "indirect", "indirect diffuse" and "indirect specular" modes

VRayOSL

• Support for OSL scene attributes

• Ability to attach textures to arbitrary OSL parameters

.vrscene exporter

• Initial support 3ds Max 2019 native OSLMap

V-Ray

• Add dialog to confirm file overwriting with Separate Render Channels

• Support for the mesh vertex velocity internal interface in 3ds Max 2019

• Add a button to transfer auto-exposure and/or auto-white balance to scene cameras

• Add MAXScript functions to start and stop IPR with V-Ray GPU

• Added Italian tooltip translation

• Cryptomatte support for DWA compressed OpenEXR files

• Update the SDK to make greater use of SSE instructions for 3D vector, color and matrix operations

• Update Embree to version 2.13

• Add options for auto-exposure and auto white balance in the Camera section of the render settings

• Add tooltip translation support for various languages

• Add scripts for the 3ds Max Scene Converter (2017 and newer) for various scene elements to V-Ray ones

• Add drag-n-drop support for V-Ray asset files onto the 3ds Max window (.vrmesh, .abc, .vrscene, .ies, .aur, .f3d, .vdb, .vrlmap, .vrmap)

• Require CPU with SSE 4.2 to support SIMD optimizations

• Show render progress on the Windows taskbar buttons

• Add a button to transfer auto-exposure and/or auto-white balance to scene cameras

• Add MAXScript functions to start and stop IPR with V-Ray GPU

• Added Italian tooltip translation

• Cryptomatte support for DWA compressed OpenEXR files

• Support for the mesh vertex velocity internal interface in 3ds Max 2019

V-Ray GPU

• Add support for glossy Fresnel

• Improved GPU 3D displacement

• Initial version of GPU dedicated UI (to be further simplified in next versions)

• Initial support for VRayEnvironmentFog (without textures)

• Initial support of VRayVolumeGrid (brute force probabilistic volume sampling only)

• Initial support for VRscans (VRayScannedMtl)

• Support for Bercon Noise texture

• Support for DoF with pinhole camera

• Add support for adaptive dome light

• Add support for volumetric rendering

• Support for BRDF mode of VRayGLSL's PTX backend

• Re-organized the UI options

• Implemented new rendering architecture resulting in better performance

VRayLight

• New adaptive dome light option to help speed up rendering of interior scenes and IBL in general (work in progress)

VRayHairMtl2

• Implement initial version of a new hair shader with melanin color control

VRayDenoiser

• Ability to denoise multiple render elements in a single pass (also added denoising on/off in various other REs)

• Integrated the NVIDIA AI denoiser as an alternative denoising engine

VRayMDL

• Ability to manage include paths through MAXScript

• Support for UTF-8 resource file paths

VRayOSL/VRayMDL

• Allow adding shader include paths from UI

VRayPluginNode

• Initial implementation of VRayPluginNode material and texture

VRayProxy

• Modifiers applied to VRayProxy objects are rendered correctly (the proxy is converted to a regular mesh)

• Add support for Alembic 1.7 layers

VRayRenderTime

• Per-pixel render time information render element (bucket sampler only)

VRayScannedMtl

• Add triplanar mapping option

VRaySwitchMtl

• Add switch material for selecting sub-materials based on a texmap value

VRayVolumeGrid

• Integrate new velocity-based grid interpolation method

• Support XForm modifiers in Volumetric render mode

• Direct loading of sparse VDB caches without resampling

• Support for relative cache paths in .vrscene files and the -remapPath option in V-Ray Standalone

vdenoise.exe

• Implement GUI for use without command-line parameters

vrstconvert.exe

• Add the deep reader and converter for .vrst files to V-Ray for 3ds max and Nuke installations

VFB

• Add option to disable VFB resizing on image load

V-Ray Light Lister

• Add control for VRayLights type

VRayLightingAnalysis

• Implement VRayLightingAnalysis render element

Modified Features

V-Ray

• Always use low thread priority in an interactive GUI session

• Change the default motion blur "Interval center" to 0.0

• Optimize object space bounding box calculation for meshes instances

• Submit to V-Ray Cloud dialog implements scene analysis for incompatible features

• Simplify code at key points by removing stale parts and avoid wasting time on branches

• Better render time estimation for progressive sampling

• Optimize the use of DR servers (early free servers at the end of a render so that they can join other jobs)

• Reduce the number of samples in the light cache

• Optimize intersection calculations with SIMD where possible

• Faster calculation of surface normals for 3D displacement

• Allow licenses with the server to be accessed through a network proxy

• Remove the "Show GI Only" option from the render settings as it's obsoleted by the VRayGlobalIllumination render element

• Print a warning if a node has different shadow and GI visibility flags as this causes artifacts with the adaptive dome light

• Fixed NaNs when sampling texmaps after Beta 1

• Remove the Photon Map GI engine from the UI

• Remove from UI the prepass and object-based multiple scattering options from VRayFastSSS2

• Make the automatic switch to effectResult channel optional

• Update Alembic to 1.7.5

• Use Visual Studio 2017 builds for all versions of 3ds Max

• When rendering spherical cameras, the z-depth channel for deep OpenEXR images should be the distance from the camera

• Changes to the auto-exposure options should be updated during IPR

• Allow V-Ray to run with up to 1024 threads (up from 256)

• Hide the VRayIlluminance render element, the new VRayLightingAnalysis render element should be used instead

• Move the IPR options rollout to the V-Ray tab in the Render Setup and add a Start IPR button

• Remove from the V-Ray log the message about failing to load a "default" preset

• Reduce occurrence of "Invalid geometric normal" messages

• Show a dialog to confirm file overwriting with "Separate Render Channels"

V-Ray GPU

• Expose the "Undersampling" parameter and make it adjustable during IPR

• Add support for basic UVW transformations for Bercon noise texture

• Add support for the "Keep continuity" option

• Add vendor information in the "C++/CPU" device type

• Enable QMC for CUDA CPU

• Gray-out texture button for direct illumination of the VRayLightMtl material

• If there are no CUDA devices, "C++/CPU" should be used

• Improve GPU Light Linker memory efficiency

• Remove the warnings for non-physical features when exporting to a .vrscene

• Support for material IDs higher than 255 in the 3ds Max Multi/Sub-object material

• Faster VRayDirt & rounded corners in some cases

• Support for VRayDirt "Consider same object only"

• Better sampling of rectangle and mesh lights in some cases

• Better sampling of glossy materials

• Optimize GPU displacement/subdivision compile times

• Improve normal mapping in procedural maps

• Broadcast 3ds Max rendering notifications during production rendering

• Export Ornatrix and HairFarm instances emitted by VRayInstancer

• Remove ActiveShade rendering mode, IPR is to be used for interactive previews

• Support for camera movement in VRayVelocity Render Element

• Improve animation export times

• Do not show render error messages forever

• Change defaults in V-Ray GPU in Max to 5000 samples and 0.01 noise threshold

• VRayFur does not update in animation

• Scenes with unavailable network assets export very slow

• Add support for auto exposure and white balance when using the light cache

• Ignore light portals (use adaptive dome light instead)

• IPR reacts to objects and lights movement immediately instead of waiting for mouse button release

• Implemented motion blur support for GPU volumetrics

VRayInstancer

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

• Optimized instancing speed

• Ability to instance Ornatrix and HairFarm objects

VRayFastSSS2

• Improve the sampling to reduce noise

• Remove from UI the prepass and object-based multiple scattering options

VRayProxy

• Alembic instances/objects to work with MultiSubTex random by instance id

VRayScene

• Add Lights support

• Possibility to use shader names with MtlMulti/GeomStaticMesh

VRayVolumeGrid

• Add warning message box when opening the deprecated AURA 1 caches

• Right-align the text in the Show File Name window so the file name can be seen if the text overflows

• Speed up and use less memory for Grid-Based Self-Shadowing of huge sparse OpenVDB grids

• Speed up Grid Smoothing of OpenVDB grids

• Speed up the Optimize Big Volumetric Grids pre-process of OpenVDB grids

• Ability to horizontally or vertically stretch and flip the selection in curve controls

• Implement stronger Approximate Scattering for brighter regions and lower scattering for the darker regions of the same volume

• Improve temperature interpolation using the Precise Tracing method

• Flickering when rendering Smoke Color based on a gradient with varying data range with Approximate Scattering

• Option to control the minimum visible voxel opacity for the volumetric shader

• Option to disable preview cache load during simulation or when not rendering

• Rename Cache Start to Cache Origin and Play Start to Timeline Origin

• Render negative Fire from caches imported from FumeFX

• Multi-threaded *.aur cache import

• VRayVolumeGrid: Merged the OpenVDB DLL into the VRayVolumeGrid plugin

• Speed up rendering of scenes with VRayVolumeGrids in volumetric mode in 3ds Max

• Resolve environment variables in VRayVolumeGrid paths during rendering rather than during export

• Allow grid Channel Smoothing to be applied over channels with any value range

• Apply the Smoothing Random Variation over all voxels regardless of the Smooth Threshold

• Improve the loading speed of VDB files

• Optimize loading of caches containing Velocity channel

• Optimize the Preview Auto Range algorithm

• Speed up velocity sampling during volumetric motion blur

VFB

• Add "Image info" window for VFB history context menu

• Add Exposure Highlight Burn color correction to vfbControl (#sethighlightburn/#gethighlightburn)

• Add option to disable replacing # with frame numbers for separate render channels

• Export color corrections settings for .vrscenes

• Ability to load as background OpenEXR images with data window

• Auto-fit for A/B images with different resolutions

• Save 3ds Max scene path to history and add option to load the scene from the VFB history right-click context menu

• Support for gamma 2.2 color correction in the VFB history

• Switch the VFB to 3ds Max Qt instead of wxWidgets

• Using '#' in the name of separate render channels output file is now expanded to frame number

V-Ray Toolbar

• The hair material button creates VRayHairNextMtl;

V-Ray scene converter

• Convert Mental Ray Lighting Analysis render effect to VRayLightingAnalysis render element

• Enhanced Corona material and texmaps conversion

• Convert 3ds Max light meters to VRayLightMeter

• Add conversion from Autodesk Bitmap to VRayHDRI

• Fixed "Highlight glossiness" handling when converting to VRayMtl material

• Add option to convert cameras to V-Ray Physical camera

• Convert 3ds Max Light Meters to VRayLightMeter

• Support for some newly added Corona native materials and textures (CoronaHairMtl, CoronaSkinMtl, CoronaBitmap, CoronaDistance, CoronaRoundEdges, CoronaTriplanar)

.vrscene export

• Add export times for various scene objects (i.e. Nodes/Nodes' meshes/Materials/Texmaps)

• Export for VRayNoiseLevel render element

• Export the Cryptomatte render elements

• When exporting animations to vrscene and motion blur is OFF, export at exact frame times

• Show a floating progress bar during scene export

VRayHDRI

• Optimize memory usage for opaque and monochrome bitmaps (work in progress)

VRayMtl

• Faster rendering of glass materials with diffuse components

• Add "Compensate camera exposure" for Self-illumination

• Remove the highlight glossiness parameter and the lock button

VRayPhysicalCamera

• Reintroduce the V-Ray physical camera and update its UI

• Disable vignetting by default

• Reset to default values for the parameters when right-clicking on spinners

VRayDistanceTex

• Optimize both viewport preview and rendering speeds

VRayFur

• Add dynamic tessellation option

• Add "Ignore scale" option for hairs width according to scale

• Add "Lock to surface" option to keep the hair distribution to a specified frame

VRayGLSL/VRayOSL

• Change range of GLSL/OSL anisotropy rotation parameter of GGX BRDF

• Update OSL to 1.8

VRayIES

• Add option to specify the actual light power of the source, instead of using the prescribed power from the IES profile

VRayLight

• Change the Half-Length/Half-Width options to Length/Width for Plane light

• Improved adaptive dome light sampling

VRayMultiSubTex

• Add a random seed parameter

• Add option for the VRayMultiSubTex texture to cycle through the textures

VRayMDL

• Add support for "boolean" widgets

• Make widget types case-insensitive

• vMaterials autodetection

• Improve anisotropy precision

V-Ray .vrmat converter

• Add partial support for VRayLightMtl

ply2vrmesh.exe

• Skip @subdivGeometry and @displaced in vrscene files with and directly convert the linked static mesh

• Print more extensive bounding box information

vdenoise.exe

• Ability to denoise multiple render elements in a single pass

• Improved the GUI when started without parameters

• The denoiser tool should preserve metadata in the output file

• Ability to denoise four-component RGBA render elements

• Enable denoising for the VRayAlpha render element

V-Ray/V-Ray GPU

• Unified installation paths, added versions to the shortcut names, updated environment variables names

VRayPluginNode

• Added export of the instantiated plugins for V-Ray GPU

VRaySimbiontMtl/VRaySkinMtl

• Removed from the UI

VRayOSL/VRayMDL

• Add shader fingerprint validation

img2tiledexr.exe

• Detect opaque or monochrome images in the img2tiledexr tool

VRayHairMtl2

• Add tint control for the primary, secondary and transmission components

VRayLightMeter

• Improve the calculation speed and quality

VRayScatterVolumeMtl

• Improved sampling

Bug Fixes

V-Ray

• Adaptive dome light artifacts with "cast shadows" off

• Artifacts with adaptive dome light when rendering with V-Ray Standalone

• Crash with AXYZ ANIMA meshes and VRayVelocity render element

• Embree crashes when building trees on machines with many cores

• Error while building Embree tree when moving VRayFur in IPR

• Exported scene from 3ds Max renders very slow in V-Ray Standalone due to excessive sampling of hairs

• Less than normal samples are calculated with Use camera path with Irradiance map GI engine

• Light Cache is about 3 times slower since V-Ray Next, Beta 2 compared to V-Ray 3.60 with transparent materials

• Overbright pixels (fireflies) with adaptive dome light

• Resumable rendering doesn't work correctly with adaptive dome lights and auto exposure

• The final info message in the VFB is "Hair and Fur" if you have Hair and Fur in the scene

• The output image vrayInfo/renderTime EXR attribute is not correct

• Standard materials don't render correctly when nested in other materials

• 3ds max Physical camera is not moving when MB samples are set to 2

• Caustics on motion-blurred objects may be blurred incorrectly

• Continuous reactivation of pixels at the end of the rendering with progressive sampling

• Crash after exporting .vrmesh with a frozen geometry for preview mesh

• Crash with matte objects, render elements and affect all channels for reflection

• Improve Light cache saving on network locations

• DR render client ignores server anouncement broadcast when host is added as 127.0.0.1

• Embree generates artifacts in specific scenes

• Random Hair&Fur strands render with the diffuse color instead of the plugged gradient or gradient ramp in that slot

• Stuck render with one core at 100%

• Unhandled exception error when camera motion blur is enabled in specific scene

• Artifacts appear with irradiance map and light cache with adaptive dome light

• Auto exposure produces black output with small regions

• Changing the "Renderable" object property of an object is not updated in IPR

• Crash when calculating light cache in scenes with Forest Colour texture with multiple maps

• Crash when rendering a scene with matte reflections

• Crash when baking textures with Motion Blur

• Crash with XRef scenes and IP

• Displaced geometry normals are incorrect during light cache calculation

• Render to texture overrides elements with black outputs when disabled

• MAXScript auto-load script error with 3dsMax2018.4

• Noisy glossy refraction with BF\LC and Retrace turned on in the attached scene

• Physical camera exposure controls are applied when have V-Ray Physical camera with Exposure enabled

• RGBA elements in multichannel EXR files are not loaded properly

• Subimage name for "beauty" subimage in multipart EXR just an empty string, set to "rgba"

• Specific scene with relatively long faces renders slower with Embree

• The exit color for refraction is not working with old scenes

• Update GLSL shader examples to use the new style of passing uniform textures

• V-Ray Cloud submission dialog issues with HiDPI monitors

• Very high memory usage with out-of-process rendering on nearly empty scene

• VRayLightSelect produces black pixels with glossy materials with black fog color

• Fix an issue with the progressive image sampler when rendering extremely bright scene

• Arch&Design material inside a VRay2SidedMtl material renders black

• Build of Embree acceleration structures cannot be canceled

• Crash in IPR with VRayMultiSubTex plugged in VRay2SidedMtl on VRayInstancer instanced objects

• Crash with MultiTexture on VRayLight

• Geometry with cloth simulator modifier causes crashes in some scenes

• Incorrect render elements in the deep output when using "By Render ID and Z-depth" merge mode

• Noisy render with adaptive dome light in specific scene

• Some files are inappropriately installed to 3ds Max folder in standalone render server installation

• The browse window for override material in Global switches opens twice

• The refraction color at distance combination of the Arch&Design material doesn't render

• VRayProxy disappears when motion blur "Geometry samples" is set to 1

V-Ray Standalone

• Standalone: Lens effects from vrscene are not applied with -display=0 option

• Crashes with specific scene with MDL materials and Scanned materials

V-Ray/V-Ray GPU

• 3ds Max crashes if Start IPR button is hit during render warmup

• Non-uniform scaled rectangle light emits in the wrong direction

V-Ray IPR

• Crash when modifying Multi/Sub-Object sub material on VRayInstancer instanced objects

• Crash with VRayDisplacementMod with texture map

• Not keeping the aspect ratio when Fit to VFB is enabled

• 3ds max crashes to desktop when VRayScannedMtl is reloaded during IPR rendering

• Some crashes with VRayVRmatMtl in certain scenarios with VRayScene

• 3ds max crashes to desktop when VRayScannedMtl is reloaded during IPR rendering

• Some crashes with VRayVRmatMtl in certain scenarios with VRayScene

V-Ray GPU

• A3ds Max UI becomes unresponsive after disabling VFB region rendering during IPR

• Adaptive lights render noisier a specific scene

• Artifacts with adaptive dome lights

• Artifacts with VRayAerialPerspective in specific light setup

• Auto exposure's "Transfer to camera" button does not work

• Black outlines with refractive VRayMtl and VRayFastSSS2

• Bump is always tiled

• Color correction remap does not work properly

• Crash at every frame after the first one with environment map assigned both to the environment and a dome light

• Crash on calculating mip-map levels for missing bitmaps

• Crash when changing materials in VRayOverrideMtl

• Crash when scrubbing the time slider due to material anisotropy

• Crash while resizing the VFB during IPR session

• Crash with a specific scene with VRayClipper

• Crash with MultiSub material when deleting invisible to camera geometry during IPR

• Crash with specific VRayProxy without normals and displacement

• Crash with VRayEdgesTex in opacity slot in specific material setup

• Crash with VRayFur with "Lock to surface" and "Ignore scale" enabled

• Custom output channels of Color Correction are not exported properly

• Different render of reflective material when Dome Light's "Cast shadows" is off

• Effects result is missing when saving through 3ds Max Output

• Extend stereoscopic rendering options (Eye distance, Focus method, Swap left/right, Follow VR headset)

• Forest Color is not working when used with only default color and no texmaps

• Inconsistent Forest Color randomization between DR slaves

• Incorrect fog color of VRayEnvironmentFog when light's shadows are turned off

• Incorrect output FOV with Sperical panorama camera with overriden Vertical FOV in 3ds max 2019

• Instanced VRayProxies with VRayInstancer are missing in the first frame of V-Ray GPU production animation

• Occasional crash when working with Physical Camera in IPR session

• On-demand mip-mapped textures render with lower resolution on GPU when used in Bump, Displacement and Metalness

• Refraction with nested volumes is wrong

• Rendering differently spherical camera

• Scene loads slower compared to CPU

• The "*_tex_mult" parameters of the SettingsEnvironment plug-in are ignored

• The "RGB and alpha source" rollout settings in VRayHDRI are ignored

• The "Use roughness" option in VRayMtl has no effect

• Unhandled exception when modifying one of the VRayInstancer lists during IPR

• Unhandled exception when rendering with disabled VFB

• Unahndled exception with Particle flow and motion blur in a scene with zero vertices meshes

• Very small triangles disappear from the rendering

• VRayDirt's "double sided" parameter is not working correctly

• VRayScannedMtl is black during the mip-map on demand loading phase

• VRayScannedMtl renders black in specific scene

• VRayScannedMtl with triplannar mapping produces artifacts with specific geometry

• Wrong opacity with VRayBlendMtl and VRay2SidedMtl

• "Visible to camera" does not work with volumetrics

• Remove "non-physical" warnings

• GPU CUDA AA Gaussian not matching CPU;

• Animatable parameters for VRayGLSL, VRayMDL and VRayOSL

• Animated radius of sphere light is not exported for VRayLight

• Artifacts in VRayLighting render element with Aerial perspective and Highlight burn below 1.0

• Artifacts with denoiser and VRayStochasticFlakesMtl

• Black color applied instead of diffuse when VRayHDRI tag tiled image is not found

• CUDA error 716 on a scene with Velocity render element and spherical VRayLight

• CUDA error 719 with specific scene with VRayClipper

• Changing the verbose level of V-Ray log is evaluated only with launching a production render

• Crash with Bercon Noise in displacement with two or more devices

• Crash with mapped opacity and on-demand textures with 382 drivers

• Crash with on-demand textures

• Crash when hiding/unhiding geometry while rendering

• Crash when turning on and off a rect/mesh Light

• Crash when rendering backwards sequence

• Crash when tweaking values in Output

• Different rendering of some of the falloff types in Falloff Map

• Displacement is not disabled from the Global switches in production rendering mode

• Displacement subdivides the geometry more than it should when Physical camera is used

• Exception after moving a VRayTriplanarTex with VRayNormalMap from bump slot to another

• Exception with MultiTexture in VRayLight

• Exposure is not updated when switching between cameras

• Flickering in animation with 3ds Max animated Noise modifier

• Material fog bias with ActiveShade rendering

• Memory leaks with animation and geometry with modifiers

• Missing reflections on VRayBlendMtl with reflective base material, non-reflective coat material and additive mode

• NaNs in Light select render element when using Light cache

• Out-of-process rendering crashes with simple scenes loaded in the VRayScene node

• Parented lights in groups don't work in VRayLightSelect render element

• Problems with Fit resolution to VFB and changing the Max resolution during ActiveShade

• Scene with particles crashes when scrubbing the time slider during ActiveShade

• The viewport representation of Body objects (CAD) is rendered during ActiveShade

• Unhandled exception when rendering a sequence with a VRayVRmatMtl

• UV tiling breaks if there is Output node between VRayHDRI and VRayColor2Bump

• VRayDirt "affect alpha" option not supported

• VRayMDL is not updated in ActiveShade when the file in attached VRayHDRI is changed

• VRayMDL is rendered black out-of-process

• VRayMtl opacity not working with image sequence

• VRayStereoscopic helper is not working

• VRayTriplanarTex for bump doesn't respect UVW scale

• Wrong result with VRayStereoscopic camera when Override FOV is enabled

• Wrong anisotropy effect in specific scene

• Wrong progress information for Light cache calculation

• Additional bump through VRayBumpMtl is not working with VRayScannedMtl

• Alpha values above 1 with VRayEnvironmentFog and Dome VRayLight (affect alpha)

• Artifacts with scaled VRayLight

• Bug with alpha channel on VRScan displacement

• Crash in specific scene with complex material setup

• Crash on the second render with specific scene with mip-mapped textures

• Crash with subdivision displacement

• Crashes with VRayFur with motion blur

• Crash when Hair Texture uses "Distance Along Strand Absolute" with V-Ray Fur

• Crash when resizing the VFB in IPR hybrid rendering mode

• Crash with VRayMultiSubTex with Gradient Ramp

• Crash when copying displaced geometry

• Crash with a heavy scene

• Directional double-sided VRayLights light distribution is not even with VRayEnvironmentFog

• Difference when rendering VRayBlendMtl with Additive (shellac) mode enabled

• Different render of VRayNormalMap

• Export for EXR settings (Option RE)

• Investigate an issue with GPU Displacement in a specific scene

• Memory leak with animation and geometry with modifiers

• Missing reflections on refractive VRayMtl with fog color different than (255, 255, 255) and VRayEnvironmentFog gizmo

• Multi/Sub-object material applied to Node with hairs renders black

• Object is rendered grey, without applied material

• Production render sequence output is saved twice

• Reduce VRayProxy print SD tree info in the log based on the verbosity level

• Tiling factor of VRayScannedMtl is not respected

• Unhandled exception with specific VRayVRmatMtls

• V-Ray exposure control is not working with Physical Camera

• VRayEnvironmentFog doesn't render properly in GPU when scatter GI is used

• Wrong shadows in a scene with proxies with transparent materials

• Adaptive dome light seems to render darker and slower in specific scene

• Changing the render resolution during GPU IPR does not work

• Crash during rendering with cloth and empty VRayDisplacementMod modifiers and motion blur

• Crash with instanced HairFarm object during IPR

• Difference in exposure between the first frame and the others with custom camera aperture

• Do not export disabled VRayClippers

• Exception with Hair&Fur modifier

• Fog color is ignored when "affect shadows" option of VRayEnvironmentFog is off

• High values for water level in VRayDisplacement cause crash

• Incorrect render of VRayScannedMtl with VRayReflection render element

• Incorrect values set for "Rays per pixel" and "Rays bundle size" parameters when spinner is right-clicked

• Incorrect VRayAtmosphere render element when fog emission color is different than default black color

• Missing OpenVR/Oculus VR preview modes

• On-demand mip-mapped textures render with lower resolution

• Render mask texture button is not working properly with drag and drop

• VRayScannedMtl materials with height map render incorrect

• Wrong reflection glossiness with MultiTexture

VRayDenoiser

• "Update" button is not working as expected during IPR

• VRayDenoiser/vdenoise.exe: Denoising produces blurry artifacts when threshold is set to 0.0

VRayFastSSS2

• Material in Raytraced (refractive) mode is lit by excluded V-Ray light with Cast Shadow disabled

• Parameters are not updated in the UI lately when color mode is set to "Scatter coefficient + Fog color"

VRayGLSL

• "vr_Position" returns wrong results

• Wrong normals in GLSL shaders

• Wrong shadow calculation when used as opacity map;

• Blurred textures with scaled UV coordinates with V-Ray GPU

• Enabling and then disabling the Quick Shader disables the preview of the material and makes it render black

• Parameters without loaded values in a specific scene cause crash with V-Ray GPU

VRayHairNextMtl

• NaN pixels caused by negative value for the diffuse amount parameter

• Randomization dye hue parameter renders differently with V-Ray GPU

• The subdivs parameter should be dimmed when "Use local subdivs" is disabled in the Global DMC settings

VRayInstancer

• Wrong instances rotations with PRT source particles

• Add support for objects with Ornatrix/Hairfarm hairs

• Different instances rotations with PRT Source objects for source particles

• Wrong particles animation when .vrscene is exported with frame range

• Crash with Krakatoa particles

VRayLightMeter

• Missing text ("Error" instead of "Error tolerance") in the UI for 3ds Max 2016 and older versions

• Wrong results for very small grid sizes

VRayLightSelect

• Fix artifacts in with adaptive dome light when mode is different from "Full"

VRayOptionRE

• Add "Whole image" ability to the "exr data window" option to save the whole image even if a region is rendered

• No OpenEXR extra metadata is written

VRayOSL

• OSL shading system leaks memory

• The 'camera:fov' OSL attribute must be in degrees

• VRayOSLTex crashes if attached to VRayEnvironmentFog

• Crash with unsupported OSL widgets for certain types of tweaks

• Maps unlink from OSL nodes when scene and its local assets are moved together to another location

VRayPluginNode

• Using in IPR may leave render license engaged

• Crash when changing Plugin type while rendering with V-Ray GPU

VRayProxy

• Preview cache is not cleared when override is specified

• Crash when loading a file after the preview cache had been enabled and 3ds Max was reset

• Hair and particles are not displayed in viewport after their preview is cached

• Reads mesh files even when they are cached

• Viewport preview is not affected when a new scale factor is set after the preview has already been cached

• Modifying the Alembic mesh Start path should update the proxy preview cache

VRaySoftBox

• Gradients UI controls are not working since V-Ray Next, Beta 2

VRayVolumeGrid

• Enabling GI has no effect with "Disabled" scattering on volumes with V-Ray GPU

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

• Incorrect motion blur on moving grid with a static or moving camera locked to it with V-Ray GPU

• Incorrect render result due to Channel Smoothing option set to Temperature with V-Ray GPU

• Light Cache renders differently on GPU compared to CPU in Volumetric Geometry mode

• Shadow Strength parameter doesn't work with scattering set to "Ray-traced" with V-Ray GPU

• The VRayVelocity render element is not rendered in Volumetric Geometry mode if Motion Blur is off

• Wrong render of VDB caches which have a background value outside the tree min-max range

• "fire_opacity_mode" parameter isn't exported to vrscenes

• After loading a cache, CPU usage remains high on machines with many threads

• Artifacts when rendering overlapping containers in Volumetric Geometry mode

• Crash when rendering a simulator without a cache with Velocity render element enabled

• Crash when rendering in Mesh mode with Surface channel set to Texture

• Crash when rendering converted grid to Editable poly

• Crash when Rendering->Surface Channel is set to Texture and Mesh Preview is enabled

• Errors when saving and loading presets

• Frame offset in Loop mode between Phoenix and V-Ray Volume grid

• Keyed Playback Mode parameter doesn't render as expected during sequence render

• Loop overlap only works when load nearest if missing is enabled

• Sequence render with V-Ray and Fire Lights keeps showing the lights after the cache sequence ends

• Missing RGB for Liquids on some frames when using Play Speed less than 1.0 and the Velocity method

• No confirmation box when overwriting presets

• Warning about using local machine Input path for distributed rendering even if the path is UNC but starts with forward slashes

• Crash after using Make unique operation on VRayVolumeGrid instances

• Crash on render after deleting an instance

• Crash when cloning (shift + click with the move tool)

• Crash when setting a VRayVolumeGrid as a Clipper mesh

• No scene shadows if Visible to Camera is disabled in Volumetric Geometry mode

• Fire/Smoke in Volumetric Geometry mode does not render at all when Min Visible Opacity is set to 0.0

• Alpha Channel and Smoke Opacity aren't correct when rendering volumetric with V-Ray GPU

• Can't load OpenVDB files whose "file_voxel_count" metadata is 0, though they contain active voxels

• Fire Opacity multiplier is not taken into account in V-Ray GPU

• Light cache computation with enabled Probabilistic Volumetrics is slower compared to V-Ray CPU

• Minimum Visible Opacity does not work with V-Ray GPU

• Rendering a sequence with several VRayVolumeGrid instances with V-Ray GPU shows only one of them after the first frame

• Rendering fire in Own Opacity mode with Smoke Color Disabled on V-Ray GPU does not match V-Ray's

• Volumes that contain the render camera aren't visible with V-Ray GPU

• Wrong velocity direction and motion blur with OpenVDB files from FumeFX

• Wrong velocity scale when importing OpenVDB files from Maya Fluids

VFB

• 3ds Max crashes when copying an image from VFB to the clipboard and then copying text from Layer/Scene explorer

• Image shifts one pixel up/down when dragging the separator line during horizontal A/B compare

• Using the drop-down channels list causes crash when renderring with disabled memory frame buffer, but with raw output preview enabled

• A/B comparison distorts the images when panning

• Inconsistent message when the History Directory path is empty

• Occasional crash when closing 3ds Max with VFB A/B compare enabled

• Crash when opening certain EXR images with ROI

• If the scene name is too long to fit in History Details, all other lines of text are not displayed

• V-Ray GPU rendering statistics appear skewed after render stop

• Bucket rendering with extreme downsizing does not fill the whole image in the buffer

• Crash when loading scene from VFB History

• Qt VFB (3ds Max 2018 and up) has issue with numeric characters

.vrscene exporter

• Composite texture with layers with no texture attached produces invalid vrscene files

• Default values for settings are now exported if neither V-Ray nor V-Ray GPU is selected as the current renderer

• The correct V-Ray Standalone version is now selected for "Export and render"

• The opacity mode of VRayMtl is now exported

V-Ray Bitmap to VRayHDRI converter

• Tiled EXR conversion tool (img2tiledexr.exe) discovery error

V-Ray scene converter

• Some camera settings are not transferred when converting Standard Camera to Max PhysicalCamera or VRayPhysical camera

V-Ray Toolbar

• 3ds Max crashes when creating a mesh lights from grouped objects

vdenoise.exe

• The denoiser tool doesn't preserve the pixel aspect

• Crash if an incomplete or broken file is passed

• The denoiser tool crashes when the input images are non OpenEXR or vrimg

• Resize the denoiser window on denoising to match the screen resolution

VRayClipper

• Clipping geometry shows up with ambient occlusion

• Wrong lighting for Fur objects inside clipped geometry

VRayDisplacementMod

• Broken geometry edges at UV-borders

• Crash when rendering animation with subdivision displacement

VRayLight

• Mesh light does not respect geometry flipping in V-Ray GPU

• Plane type light from X-Ref scene saved with earlier version is loaded half size after Beta 1

• Negatively scaled disc lights emit in both directions with Double-sided disabled

VRayLightMtl

• Direct illumination enabled doesn't produce correct results when illuminating Standard material

VRayMtl

• Crash with enabled Abbe number and Full mode VRayLightSelect

• Fog color is ignored if VRayDisplacementMod is present

VRayMDL

• MDL assets are not transferred to DR slaves

• Message boxes are shown in quiet mode

• Subsurface absorption issues

• Crash when rendering with full light select

• Blurred textures with scaled UV coordinates

• Rendering very bright with reduced ray depth

VRayScannedMtl

• Artifacts when rendering with Light cache on specific scene

• All maps (paint, filter, ior, etc.) are not affected by the parallax displacement

• Constant increase of the consumed memory during the rendering of certain material

• Crash when using UV adjustment with certain object

• Edge displacement appears inclined when the UV tilling multipliers do not match exactly the sample aspect

• Edge displacement does not produce equal result in all ray directions

• Geometry with smooth or shell modifier produces holes behind the displaced edges

• Renders black when seen through the translucency texmap of VRay2SidedMtl

• Viewport preview of the VRScan does not match the render

• VRscans materials slow down the viewport animation

• When no UV mapping is present, the light cache cannot sample the material

• Environment and effects exposure control has effect even when not Active

• Remove Subdivsion parameter

• Disable the UI parameters that are not working in V-Ray GPU when set as current renderer

VRayToon

• Is always applied on VRayLights

• Crash with third-party geometry plugins

• V-Ray Toon line dissappears with big FOV camera values

V-Ray Light Lister

• Disable subdivisions of the lights when Use Local subdivs is unticked

ply2vrmesh.exe

• Crash with specific nodes from vrscenes with applying both velocity and transformations

• .ply files form ZBrush do not convert correctly

V-Ray GPU CUDA

• The Distance Blend mode of the VRayFalloff texture doesn't work

VRayDirt

• Excluded object affects rendering of objects with inverted normals after Beta 1

VRayFur

• Crash with enabled tessellation and motion blur

• Crash if fur is applied to non-geometry objects

VRayHairMtl2

• Very slow rendering of hairs with opacity

• Hair renders darker when the light cache is enabled

VRayHDRI

• Color bleeding on the UV space edges with disabled tiling

VRayPhysicalCamera

• Automatic vertical tilt is not updated during animation

• Environment and effects exposure control has effect even when not Active

• Lens file distortion is not working

VRaySwitchMtl

• Mismatching material indices

• Incorrect width of the parameters rollout on high DPI displays

.vrscene export

• Improve file write times

• Geometry animation is not exported when Geometry samples are set to 1

vrimg2exr.exe

• Option -info does not print "V-Ray information" data

V-Ray GPU CUDA

• Crash when lights are turned off and back on during IPR

VRayDistanceTex

• The texture for the distance parameter of VRayDistanceTex overrides the distance value

VRayEnvironmentFog

• Crash with animation in specific scene

VRayMtlSelect

• Render element is not correct when rendering deep images