V-Ray for Maya 3.5 is now available!

[FSGFX]

OSL is for CPU only... MDL can work with CPU or GPU basend renderer and on openGL...

[sharktacos]

OSL has several examples in the Chaos Docs page. Could you point to some sample MDL shader code?

[vlado]

You can create MDL materials with Substance Designer, download the vMaterials collection from nVidia, or just look up the MDL specification on the nVidia web site.

https://developer.nvidia.com/vmaterials

http://www.nvidia.com/object/materia...-language.html

Best regards,
Vlado

[t.petrov]

How would you say MDL differs from OSL?

MDL materials are fully specified materials. You can only change parameters, but you cannot plug non-file textures in them as far as I know.