As of On October 26th the newest build, V-Ray® 1.50 Service Pack 4, is available from the download section of the Chaos Group site.

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The upgrade is free of charge for all current V-Ray customers of Chaos Group.

The V-Ray® 1.50 Service Pack 4 is compatible with Autodesk® 3ds Max® 8, Autodesk® 3ds Max® 9, Autodesk® 3ds Max® 2008, 3ds Max® 2009, Autodesk® 3ds Max Design 2009, Autodesk® 3ds Max® 2010, Autodesk® 3ds Max® Design 2010.

The new V-Ray build supports both 32-bit and 64-bit OS.

Added new feature in V-Ray 1.50 SP4 is V-Ray Ambient Light.

It includes several modified features:

–  Improved multithreading on multi-core machines;
–  Ability to specify gizmo falloff for VRayEnvironmentFog;
–  Ability to use arbitrary meshes as gizmos for VRayEnvironmentFog;
–  Option to exclude the background from VRayEnvironmentFog;
–  Added CIE sky models to the VRaySun and VRaySky;
–  It is now possible to submit DR servers list for DR through backburner;
–  Added option to not use area speculars in the VRayIES light;
–  Added Kelvin temperature settings for the color of VRayLights;
–  VFB history is now turned off when 3ds Max is in slave mode;
–  Output .vrimg and split channel paths are listed in the Asset Tracker;
–  GI cache files (irradiance maps, light cache etc) are listed in the Asset Tracker.

The complete list with the improvements of the existing features can be found in the changelog file, which is a part of the installation.

The V-Ray® RT 1.50 Service Pack 1 is compatible with Autodesk® 3ds Max® 8, Autodesk® 3ds Max® 9, Autodesk® 3ds Max® Design 2009, Autodesk® 3ds Max® 2010, Autodesk® 3ds Max® Design 2010.

The new V-Ray RT build supports both 32-bit and 64-bit OS.

The upgrade is free of charge for all current V-Ray customers of Chaos Group.
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It includes the following new features:

– Support for the HSL/HSV controls of the ColorCorrect texture (as well as the map slots);
– Support for the “Additional bump” slot of the Normal bump texture;
– Some gamma workflows did not work well with the ActiveShade;
– Option to stop updating the ActiveShade window after a certain fixed amount of time;
– Support for region rendering in the ActiveShade window;
– The override material options from the standard V-Ray renderer to work properly;
– Support for environment override in VRayMtl;
– An option to manually restart V-Ray RT, without having to close & reopen the activeshade window/viewport;
– Option to pause the RT;
– Support for opacity maps of standard materials;
– Support for VRayEdgesTex in bump slot;
– Ability to directly export to a .vrscene from MaxScript without starting the ActiveShade (through the vrayExportRTScene() command);
– Access to the ActiveShade bitmap from MaxScript (through the vrayGetRTBitmap() command);
– Support for paletted PNG textures;
– Consider the “Hidden lights” switch from the standard V-Ray;
– Support for IFL file format for textures;
– Support the Shell Material in V-Ray RT.

The complete list of the new and improved features can be found in the changelog file, which is a part of the installation.

In order to explore the rendering opportunities of V-Ray RT you must have installed V-Ray 1.50.SP4 or a later version.