This is a Excellent Application on Learning V-Ray. Includes Video Training and Practice Exam.
Learning V-Ray is a most for any serious Graphic Artist
V-Ray is a rendering engine that uses advanced techniques, for example global illumination algorithms such as path tracing, photon mapping, irradiance maps and directly computed global illumination. The use of these techniques often makes it preferable to conventional renderers which are provided standard with 3d software, and generally renders using these technique can appear more photo-realistic, as actual lighting effects are more realistically emulated.
V-Ray is used in the film and video game industries