VRayMtlBlend overhaul follows Nuke's MergeMat idea for setting layers using multiple nodes
VRayMtlBlendInput removed
Channel name knob for Render elements:
Error message when V-Ray plugins cannot be loaded
possibility to change light color and light/camera/geometry rotation in the VRay Material Preview node
Custom inputs to the VRay Material Preview node to use custom geometry and/or custom HDR lightning
Support for Max Ray Intensity
Support for Depth of Field
Use of external XML resource file to dynamically load label and tooltip information
Fine control for projected textures using VRayTexBitmap format and VRayCamera fitfill and fittype properties
Textures behave like emissive material when there is no light in the scene