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Official Release

Date - November 26, 2019

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New features

V-Ray GPU

Added support for RT cores of NVIDIA RTX cards
Introduced light tree for improved sampling on scenes with thousands of lights
Support for Deep EXR output
Hash map based light cache
V-Ray GPU Distance texture support

V-Ray

Hash map based light cache
Added support for creases in V-Ray subdivision
Support for Bercon Noise texture

VFB

Improved Lens Effects with procedural dust and scratches

VRayFastSSS2, VRayAlSurface

Added an option to consider all objects for SSS

Modified features

V-Ray

Improved alembic import times
Improved VRayScene importing times
Changed the default values of the Progressive Sampler
Added an option to save color corrections to raw .exr and .vrimg files
Added "vray gpuDeviceSelect" command
Added an API for custom c++ translators controlled by desc.txt
Removed the "Use legacy materials" option
The Hypershade Material Viewer will now use V-Ray GPU when GPU is the renderer
Now checking the version of the installed Chaos License Server during installation
Multi-threaded execution of OpenEXR compression and decompression to improve performance
Updated Embree to v3.2.0
Updated OpenEXR to v2.3.0
Optimized rendering of Multi/Sub-Object material
Set AlSurface SSS weight max value in the UI at 1
Set the default dynamic memory limit to 0
Transfer color VFB corrections for Chaos Cloud

V-Ray GPU

Added the RTX value for the -rtEngine flag for V-Ray Standalone
Added support for efficiently instancing hair on GPU
The Gaussian AA filter now available when GPU is the renderer
"DR Bucket" render element for V-Ray GPU
Improved user-defined shaders (GLSL, MDL etc.) compilation
Optimized mesh transfers to multiple devices

VFB

Moved the VFB test resolution functionality to the fly-out button instead of the right-click menu
Added "Save in image" option to OCIO color corrections, to save the corrected image
Added sliders for Lens effects' "Intensity" and "Threshold" parameters
Read the saved window position only for the initial render and use the last valid position afterwards
UI improvements for the VFB Lens Effects panel

VRayVolumeGrid

Added support for explicit texture coordinates for the Texture sampler
Do not load caches while the timeline changes during sequence vrscene export or render in Maya
Added warning when importing VDB particle caches in Maya versions older than 2018
Speed up loading of VDB caches by reading their min-max channel ranges from metadata instead of calculating them

Chaos Cloud

Added support for smarter cloud client updates
Added Cloud client application to V-Ray for Maya installation

V-Ray IPR

AI denoiser will be used for IPR by default

VRayProxy

Improved errors logging

Cryptomatte

Disabled cryptomatte in IPR;
Set the default Cryptomatte mode to "Node name with hierarchy"

VRayRectLight

Improved sampling of directional lights

VRayLightDome

Dome lights are now adaptive by default

VRayALSurfaceMtl

Implemented bump shadowing

VRayMtl

Enabled affect shadows by default

VRayStereoscopic

Removed the Shade Map for Stereoscopy options

VRayExtraTex

Added an option to disable lossy DWAA/DWAB compression for a render element

VRaySmplerInfo

The render element should always be saved with lossless compression

Bug fixes

V-Ray

Fixed compositing results don't match with matte reflections if "Consistent lighting elements" is enabled;
Fixed Matte reflections not rendering with consistent render elements
Fixed zDepth render element infinity color
Fixed deleting instances in IPR crashes Maya in some cases
Fixed Negatively scaled objects exported to proxy with flipped normals
Fixed wrong gamma of the colorCorrect lookdev kit node
Fixed Standalone VFB not auto resizing depending on resolution
V-Ray should not append "_tmp" to the filename when exporting for the cloud
Fixed V-Ray Standalone Error [createPathImpl] Empty string argument with -imgfile=<filename>
Fixed RawReflection RE for AlSurface rendering black if the Reflection RE is not present
Fixed random crash after rendering a sequence with V-Ray GPU in Maya
Fixed different motion blur between proxy and referenced scene
Fixed Material nodes defined in desc.txt wrongly exported as volume shaders
Fixed Test resolution disabling resumable rendering in batch mode
Fixed Maya fluid texture rendering non-deterministically with GI
Fixed overscan for rendered deep EXR images not exported corectly
Deleting displaced geometries crashes maya
Fixed EXR metadata camera name is <unknown>
Fixed float list in TexRemap '_value' parameters preventing GeomDisplacedMesh from functioning properly
Fixed missing metadata from multichannel EXR when rendering in batch mode
Fixed matte objects not present in the alpha channel when rendered through refractive objects

V-Ray IPR

Fixed Isolate selecting a texture in IPR not respecting the placement
Fixed disconnecting image planes not detected in IPR
Fixed adding renderable curves to a spline does not refreshing while IPR is running
Fixed debug Shading's Isolate Selected mode not working correctly for objects with opacity

VRayProxy

Fixed wrong UV interpolations in imported .abc hair/fur (via VRayProxy) when Tessellate hair is active
Fixed preview for instanced vrscenes
Fixed slow proxy export in Batch mode with specific scenes
Fixed Proxy visibility lists not loading in specific scenes
Fixed Proxy with -noMaterial option not rendered
Very slow loading of VRayMesh visibility lists

V-Ray GPU

Fixed IPR on multi GPU stoping with CUDA_ERROR_INVALID_HANDLE
Fixed brighter rendering during adaptive light v2 gathering phase
Fixed artifacts when using Metalness with Glossy Fresnel
Fixed artifacts with VRayALSurface and Adaptive lights v2
Fixed bounding box artifacts when rendering a VRayVolumeGrid
Fixed crash with hidden faces on subdivided geometry
Fixed crash during render with volumetrics
Fixed crash on stop during Light cache phase
Fixed crash when cancelling the render for scene with lights include/exclude lists
Fixed crash when using VRayClipper on an object with material containing VRayCurvature
Fixed defocusAmount denoise element not generated with standard cameras
Fixed Gaussian image filter not matching the CPU one
Fixed hidden edges of VRayEdgesTex always on with VRayProxy
Fixed hidden faces being rendered during Light cache preview, creating wrong lighting
Fixed Light cache not working with DOF and perspective camera
Fixed nested refractive volumes rendering wrong
Optimized distance texture for geometry heavy scenes
Fixed random crash with tiled bitmaps
Fixed unhandled exception when baking texture of a mesh with degenerate UVs
Fixed VRayVolumeGrid are not rendering correctly in normals render element
V-Ray GPU/VRayAlSurface: Fixed VRayAlSurface with rounded edges rendering wrong on the GPU
V-Ray GPU/VRayDomeLight: Fixed artifacts with Adaptive dome when objects are excluded from shadow casting in the light

VRayDomeLight

Fixed artifacts when using Adaptive dome light and VRayFur with VRayMtl on it
Fixed artifacts with Adaptive dome and VRayToon
Fixed artifacts with Adaptive dome light with "affect reflections" disabled
Fixed using camera clipping planes makes the dome light invisible
V-Ray GPU/VRayDomeLight: Fixed artifacts with Adaptive dome when objects are excluded from shadow casting in the light

VFB

Fixed certain integer render elements are not displayed when loading EXR files
Fixed the scrollbar in the Color Corrections window hiding some of the text
Fixed UI not responsive with ICC color correction during IPR with V-Ray GPU

Material importer

Fixed BRDFVRayMtl not imported from file as VRayMtl
Fixed SamplerInfo Extra V-Ray attributes not importing by the material importer
Material importer now remembers the correct path to open when browsing

Python

Fixed fatal error with post translate print node settings
Fixed Python post translate not working for certain lists

VRayHairNextMtl

Diffuse component should go in it's respective render elements
Fixed artifacts in raw render elements with Consistent lighting elements

VRayToonMtl

Fixed incorrect toon mtl contribution in light cache

VRayEnvironmentFog

Fixed Environment Fog not respecting sets in "Add to shape lights" light mode

VRayCarPaintMtl

Fixed car paint material rendering non-deterministically

VRayScene

Fixed crash when importing scene with many particles

VRayLightRect

Fixed different specular reflections when rendering directional disc light

VRayOSL

Crash in microfacet("ggx") when roughness is greater than 0.0

VRayOverrideMtl

Fixed vignetting along concave edges with Light cache and many lights

ZDepthRE

Refractive objects are white regardless of the Affect channels value with V-Ray GPU

VRayALSurfaceMtl

Fixed SSS not being computed for materials seen through glossy refraction

VRayStochasticFlakesMtl

Fixed stochastic flakes not visible through glossy refraction