General speed improvements

New adaptive sampling algorithm for better detection and clean-up of noise in the image

Added option for automatic subdivs calculations for materials and lights

Better GI distribution (more robust handling of reflective GI caustics) for interior scenes

Experimental support for machines with more than 64 logical cores (enabled through VRAY_USE_THREAD_AFFINITY=1 environment variable)

Better sub-pixel filtering for the progressive sampler

Dynamic noise threshold for the progressive sampler for more even noise distribuion

Internal spectral color space switched from CIE RGB to sRGB

Updated default settings

Added "Generate render elements" option to the V-Ray object properties

Added vrayGetStampVariable() MaxScript function to return the value of any VFB stamp variable

In-process RT engine (no separate command-line opens up)

Support for lights include/exclude

Better support for AMD hardware

Initial support for GLSL texture shaders

Support for hair and particles from VRayProxy objects

Added initial support for VRayMultiSubTex

Added support for 3ds Max procedural textures in environment slot

Added support for VRayFur

Added support for MultiTexture

Added support for mapped IOR of VRayMtl

Added support for the physical camera bitmap aperture

Added support for the "cast shadows" option of the V-Ray lights

Added support for VRayPlane

Added support for VRayUserColor and VRayUserScalar

Support for texture-mapped "radius" parameter in VRayDirt

Ability to compare the V-Ray settings recorded with the VFB history images

Ability to export the color corrections settings as single LUT (.cube) file

Ability to load color corrections from VFB history

Ability to remember the window position since the last 3ds Max session

New sky model (Hosek et al)

Added ground color parameter

Updated default settings

New stochastic flakes material for car-paint like materials

Implemented raytraced rounded corners when used as bump map

Added an "Additional bump map" slot

GLSL shaders are now compiled to binary code through LLVM for increased render speed

Added a texture for triplanar mapping

New aerial perspective atmospheric effect

Ability to clip against arbitrary meshes

Implemented options for hair curling

Added ability to pick individual PFlow events

Specify the proxy preview faces as percentage of the original faces, min and max values

Added options for probabilistic volume sampling in the VRayVolumeGrid atmospheric effect

Added support for importing VDB caches from FumeFX 4

Automatically disable the bitmap pager

Distributed calculations of the light cache with distributed rendering

Further speed improvements for proxies and instances (beyond what we had in V-Ray 3.20.03)

Improved CPU utilization for the progressive sampler when using noise threshold

Speed improvements when rendering displacement/subdivision surfaces

Added progressive sampling buffer memory usage info to the V-Ray rendering messages log

Optimized Mitchell-Netravali filter performance on Intel Xeon CPUs

Added warnings about compatibility issues with Blend, Shellac and Composite materials

.vrscene exporter support for VrayScannedMtl

Added "Show log" button in the System rollout when set as production renderer

Avoid burning the RT statistics into the final saved images

V-Ray plugins can be loaded from multiple paths set in the VRAY30_RT_FOR_3DSMAXNNNN_PLUGINS environment variable

Moved the "Ignore in RT Engine" option from Object Properties to V-Ray Properties

Improved light cache with support for motion blurred hairs

Optimized the "Compiling geometry..." phase on scenes with many nodes

Print warning for unsupported textures

Prevent kernel recompilations during ActiveShade

Added tooltip with the image comment to the images in the VFB history

Adding/removing render elements will not delete the contents of the frame buffer

Moved the "Use interpolation" options for reflections/refractions to the relevant rollout

Added toggle controls for the coat materials

Added user tags support for textures connected to a GLSL/OSL texture or material

For newly created VRayDirt textures, the subdivs (and samples quality) is no longer influenced by antialiasing settings

Tiled textures caching optimizations

General speed improvements

Support for UDIM tiles greater than 1999

Fixed incorrect results when the "Mirror" and "Tile" options are switched off

Enabled adding of multiple lights in the Environment Fog field through "Select by name" dialog

"per gizmo fadeout enable" option is disabled by default

Renamed the per-gizmo "fadeout" parameter to "falloff"

Added automatic preview detail reduction

Allowed the render diagrams/gradients to be resized by MaxScript

Added modes to extract a specific node user attribute as an integer or floating-point render element

Added support for Corona 1.2.1

Added support for the Output rollout and crop/placement values;

Added support for VRayHDRI and VRayNormalMap

Auto-run the license server if it was running prior the installation

Accepts "-numthreads" option to limit the number of threads for the DR node when not using NUMA options

"Transfer missing assets" option wasn't working trough Backburner

Automatically turn off image filtering with Cube 6x1 cameras because it is causing "Invalid geometric normal (-0 -0 -0)" errors

GI "Leak prevention" parameter name was disappearing when loading settings from VFB history file

Light Cache was crashing at Merging Passes stage with Motion Blur and particle systems

Fixed wrong results with sharpening image filters when rendering with progressive image sampler and V-Ray RT

"Maps" option in Global Switches doesn't disable the textured lights properly

Per-pixel statistics were wrong with region render

Render mask in texture mode was loading only the top level bitmap if there were sub-textures

Rendering was freezing with static subdivision and tiled textures when the displacement map is missing

Rollouts in the Render Settings window were disappearing when loading V-Ray presets

The "?" button for the Adaptive image sampler was opening broken URL

Fixed crash with Free Directional Lights

Fixed wrong result in the VRayShadows render element

Added missing V-Ray items in the 3ds Max menus

3ds Max Photometric lights' filter color was not exported to .vrscene files

Camera animation was not properly exported to .vrscene files

Could not lock render view if Phoenix FD GPU preview is in one of the viewports

Fixed crash when creating spherical light during ActiveShade

Fixed 3ds Max crash when inserting VFB stamp variables after rendering as production renderer

Fixed crash when re-connecting Multi/Sub-Object material to VRayBlendMtl during ActiveShade

Fixed different results with VRayIES lights compared to the production renderer

Fixed error when rendering Normal Bump map with texture in Additional bump map and no Normal map set

Fixed export of textures redundantly wrapped in TexOutput plugin

Fixed random error "stage 2" after tweaking exposure settings due to uninitialized resources

Fixed silent crash when closing 3ds Max after rendering

Fixed VRayBlendMtl exporting of redundant BRDFLayered plugins for the sub-materials

Fixed wrong scaled camera rendering

Gradient Ramp texture had Surface Normal not properly calculated for backfacing polygons

MaxScript/Quad menu export to .vrscene was always creating animation keyframes

Meshes with subdivision should be exported as GeomStaticSmoothedMesh

Prevent hidden geometry export

Subtract function in VRayCompTex was producing incorrect results

The parameters for probabilistic lights were not exported to .vrscene files

The RGB Offset, Level and Output Amount from the Output texture and rollout were not applied correctly

VRayDistanceTex was not exported

VRayFur placement by material ID was offset by 1

VRayGLSLTex and VRayOSLTex were not shown as compatible textures in the material editor

VRaySun exclude list was not applied

Fixed crash on closing of the Render Message window in 3ds Max 2016, during ActiveShade

Fixed lighting with dome light if it was not the first light in the scene

Fixed wrong results with textured VRayLights

"Inverse square" decay of Standard lights was not working

MultiMatte render element was not working when rendering with motion blur

Objects with animated displacement were disappearing on time change during ActiveShade

Removed artifacts caused by overlapping faces on VRayProxy objects with motion blur

VRayNormalMap was not rendering correctly

"Auto update bitmaps" was not working

Fixed crash when deleting VRayClipper during Active Shade

Refractions were rendering differently compared to the V-Ray RT CPU

The "Mix Curve" of Falloff maps was not taken into account

Optimized memory allocation when loading scenes with many textures

VRayProxy objects' G-Buffer ID was not filled correctly

Prevent auto-save an image in the history if the VFB has just been cleared

Adding points to the curve color correction was resetting the right tangent of the last point

Channels were mismatched in compare A/B mode when channels were different in both of the images

Fixed %frame variable in the frame stamp doesn't work

Fixed color correction rollouts scroll position after hiding rollouts

White balance color correction was causing hanging after rendering

The "max subdivs" parameter was not disabled for modes other than subdivision surfaces

Fixed result affected by inactive instances

Was not irradiated by VRaySun in V-Ray RT

Wrong deep output was generated when using with multiple/overlapping gizmos

Fixed crash when rendering with VRaySamplerInfo render element

Anisotropy and Rotation texmap shortcut buttons did not have context menus

Was not returning correct number of sub-textures

Fixed "inside color" leaking out with particular geometry

Lights include/exclude list was ignored when motion blur was enabled

Fixed visible edges in raytraced mode when intersecting with other invisible geometry

Fixed reflections when the material has glossy reflections and GI is off

Fixed missing direct light from VRayAmbientLight

Elliptical filtering was crashing when assigned as environment map

"Placement" option was not reflected in the viewport preview

Source object's scaling was not taken into account

Fixed crash when the map channel is set to 100

Environment was wrongly contributing to irradiance maps when there was a dome light with "affect alpha" disabled

The wrong VRaySun lights was chosen in case there were multiple hidden but one

Exposure in viewport was too dark in the in 3ds Max 2016

Rendering with bitmap aperture was producing black images

Camera exposure from the VRayPhysicalCamera was applied twice to render elements when rendering with shademaps

Disable the DOF effect while rendering shade maps

Deleting and then undoing breaks all rendering and simulation functionality

Fire in "own opacity" mode was rendering very dim in reflections with glossiness < 1

Workaround F3D files from FumeFX using boundless simulation or wavelet are not scaled correctly

Fixed error if there are Bitmap textures with no file names