Official Release

Date - May 09, 2019

Download - Build 4.12.01

New features

V-Ray

• Improved light sampling on scenes with thousands of lights
• Added memory tracking options to V-Ray Render Settings
• Added peak memory consumption in EXR metadata
• Added an option for consistent render elements for better compositing. Enabled by default on new scenes
• Faster translation of mesh geometry
• Added AppSDK with Python binding to installation
• Added Lighting Analysis Render Element
• Added efficient instancing for hair with "dynamic hair tessellation" and "stored in global hair tree" disabled
• Added matte backfaces output to the surfaceLuminance mode
• Added inverse exposure texture shader for compensating changes in physical camera
• Command line interface tool for selecting rendering devices
• Added an option to automatically exit vray -server if idle after a specified amount of time

Cryptomatte/VRayProxy

• Cryptomatte support for V-Ray Proxy sub-objects

V-Ray GPU/VRayAlSurface

• AlSurface support on GPU

Chaos Cloud

• Cloud window allowing direct submit from Maya

VRayLightSelect

• Added new light select indirect modes

V-Ray GPU

• Resumable rendering with GPU bucket sampler
• VRayCurvature support on GPU
• Support of Glossy Fresnel feature on GPU
• Added support for CUDA-CPU rendering to the GLSL and MDL plugins
• Added subpixel mapping checkbox for GPU bucket rendering
• Support for multiple map channels for TexBitmaps in MtlGLSL
• Support for the frame offset of the Maya file node when an image sequence is used

Cryptomatte

• Cryptomatte support for all deep merge modes

vdenoise

• Ability to apply lens effects in vdenoise

VRayMultiSubTex

• Added a random "Seed" and "Loop Textures" parameters to MultiSubTex

VRayMtl

• Added the anisotropy axis and anisotropy derivation controls to the VRayMtl

VRaySun

• Added the color mode option to the VRaySun

VRayToon

• Added support for VRayToon in glossy refractions

VRayFastSSS2

• Added "Color Mode" dropdown in the VRayFastSSS2 material

VRayMtl/V-Ray GPU

• Self Illumination GI for VRayMtl now visible in GPU-dependent UI

VRayToonMtl

• Added support for spline interpolation in VRayToonMtl ramps

Misc

• VRayTriplanar/Viewport 2.0 Triplanar texture projections support for viewport 2.0
• VRayOSLMtl/VRayMDLMtl Material select support for MDL and OSL

V-Ray IPR

• Faster updates in IPR when moving heavy geometry

Modified features

VRayProxy

• Optimized proxy visibility list controls for better proxy node performance in Maya
• The VRayMeshPreview node will be created during the vrayCreateProxy command, not on an idle callback, making scripting easier
• Removed unnecessary file reads when loading scene
• Shader names list generation no longer happens on idle and is now more script-friendly
• Removed the deprecated "use Maya shader" option from the VRayMesh node
• Fixed slowdown and many warnings printed when instancing a VRayMesh with missing filename
• XML material assignment override will now appear in the filepath editor
• The vrayCreateProxy command will now return a string with the newly created node
• The Maya Archive cmd will now take into account .vrmesh assets

Cryptomatte/VFB

• Cryptomatte data channels will not be visible in the VFB, only the preview channel

VRayAlSurface

• Fixed AlSurface GI contribution going into the SSS channel
• The global SSS toggle will now affect AlSurface

Chaos Cloud

• Pre/Post Render MEL scripts are now executed when exporting for Cloud

V-Ray

• Faster time to first pixel with V-Ray Fur
• Changed the default frame number separator char to . in PTex baker
• Automatic conversion from Color to AColor when using -parameterOverride in V-Ray Standalone
• Added extra attribute for controlling 3dProjection's number of motion blur samples
• More informative error messages for image file errors
• In DR, automatically delete cache_info_portNum.txt on render end if VRAY_LOCAL_CACHE_LIMIT_VALUE=0
• Fixed inconsistencies with the merge by z-depth mode of deep rendering
• Temp files are now created with read/write permissions for all users
• Fixed VRayPlaceEnvTex Ground Projection not respecting Up Vector
• The Up Vector default value now respects Maya Preferences
• No longer force-switching to progressive sampler when changing the production engine to GPU CUDA
• Faster export of user attributes

VRaySoftbox

• Fixed Softbox not having a swatch preview

VRayMultiSubTex

• MultiSubTex indexing will start from 1 for new scenes, making randomization work correctly

VFB

• Save current channel from VFB no longer appends the channel name to the user-defined file name

VRayMtl

• Fixed some VRayMtl attributes not being listed in the channel box

V-Ray GPU/VRayEdgesTex

• Show the "Show subtriangles" option in VRayEdges texture on GPU

V-Ray GPU

• Dome lights will contribute to ZDepthRE

V-Ray IPR

• More responsive IPR for heavy scenes

Bug fixes

V-Ray IPR

• Fixed crash when stopping IPR while compiling geometry
• Fixed crashes when switching the viewport subdivisions ON/OFF while rendering
• Fixed a crash and wrong subdivision of geometry in specific cases
• Fixed changed material on instanced object not reflected in IPR
• Fixed a crash with IPR if rounded edges attribute is added to a mesh-clipper
• Fixed changing the "Use Image Sequence" parameter in IPR crashing Maya
• Fixed slowdown with viewport IPR caused by an animation rig
• Fixed flickering in IPR
• Fixed unhandled exception in IPR when VRayPlane is shaded with direct VRayLightMtl

VRayAlSurface

• Fixed incorrect render of ALSurface if lighting render element is enabled

V-Ray

• Fixed Streak particles having wrong transformation
• Maya on remote desktop crashes on loading specific file
• Fixed last user attribute not exported correctly in some cases
• Maya drag'n'drop: added a special case for Windows file share paths
• Fixed V-Ray not saving output image when data region is empty
• Fixed wrong export of referenced render elements in batch
• Fixed fatal error in some cases when starting DR if the host is not found
• Fixed V-Ray printing an incorrect success message for writing output image with a missing asset in DR
• Fixed noisy reflections with V-Ray Next for objects with cast shadows on, but visible in reflections/refractions off
• Fixed refractive objects rendering darker with photon caustics from a dome light
• Set a min limit of 1.0 to the AA Filter size
• Fixed incorrect reporting of primitives with embree hair
• Fixed crash when enabling/disabling reference scenes while running IPR
• Fixed OSL crashes on post-Haswell processors
• Fixed EXR files loaded in the VFB not having their integer REs displayed
• Fixed slowdown on many-core machines with light linking
• Fixed flickering of distant light sources with the adaptive lights and many light sources
• Fixed slower adaptive lights with V-Ray Next compared to V-Ray 3.6
• Fixed incorrect full light select element with VRayFastSSS2
• Fixed -velocityAttrName parameter of ply2vrmesh not working for Alembic input files
• Fixed resuming a bucket render resetting the progress to zero
• Fixed artifacts with matte (matte for refl/refr = off) and adaptive dome light
• Fixed super bright lens effects when using the NVidia AI denoiser
• Fixed crash when enabling Bloom/Glare in the VFB while A/B compare is also enabled
• Fixed bucket artifacts with adaptive lights
• Fixed error with AI denoiser "Optix does not support cross-frame denoising"
• Fixed DR may have watermarks if licenses are unstable
• Fixed transparent objects with "cast shadows"=off rendering black when there is a VRayDomeLight behind them
• Fixed "Direct visualization" option for caustics not working
• Fixed aborting render after the last bucket skips saving img_file, keeping unfinished resume file

Misc

• SamplerInfo Fixed Sampler Info relative coordinate system not working correctly

V-Ray GPU

• Fixed crash when baking textures with GPU
• Fixed wrong rendering of rounded edges in Next GPU
• Fixed wrong Cryptomatte in animation with V-Ray GPU
• Fixed Volume Grid crashes with VRayFastSSS2 on GPU
• Fixed missing secondary reflections on CUDA CPU with Stochastic flakes
• Fixed VRayClipper not working correctly with disabled clip lights geometry and dome light
• Fixed buckets different in sampling (noise level) with bucket sampling enabled
• Fixed unhandled exception loop on specific scene when rendering with IPR and turning off lights
• Fixed wrong worldNormals RE for SSS material hits in V-Ray GPU
• Fixed a crash when a V-Ray Fast SSS2 material is used inside a V-Ray Override material
• Fixed wrong normals of VRayLight Plane in V-Ray GPU normals render element
• Fixed hybrid rendering failing with AI denoiser
• Fixed Environment ZDepth color not matching V-Ray CPU
• Fixed crash on render end
• Fixed DiffuseFilter render element for FastSSS2 rendered incorrectly with V-Ray GPU
• Fixed crash with XGen

VRayLightSelect

• Fixed Light select not respecting alpha of a textured light when the texture is constant

VRayProxy

• Fixed crashes in proxy export of multiple meshes caused by missing UVs
• Fixed crash when loading huge alembic file with many color sets
• Fixed a crash when importing alembic with degenerate faces
• Fixed XML material assignment file not getting transferred in DR
• Fixed crash when opening a scene with alembic layers
• Fixed preview bugs with multiple proxies with different settings pointing to the same file

VRayLightDome

• Fixed error when using Resumable rendering with Adaptive Dome light

VRayMtl/VRayAlSurface

• Fixed compositing with BlendMtl not matching Beauty

Viewport IPR

• Fixed slowdown when Hypershade is opened
• Fixed slowdown when the "Selection Mode" is set to "Box"

VRayMeshLight

• Fixed artifacts with LightMesh and LightMtl with EnvironmentFog

VFB

• Fixed Lens effects settings not resetting on a new scene

VRayScene

• Fixed crash when V-Ray accesses UV-coordinates from an imported .vscene