I have been working on a model in rhino 6(trial mode) and used some materials from rhino renderer just to export some progress scenes in rendered mode. Now i am working on my model in rhino 5 in order to render with vray but the file does not recognize any vray materials either envirnonment. It even “burns” any other file with vray materials that has been created with rhino 5 when i import it! Does anyone have a clue what the problem is? I have tried to delete all materials from rhino renderer and then add vray materials but the same problem occures.