If you need to change it, use the following command line: mtllib.exe -targetDir'C:pathtoV-Ray Material Library' If the file is executed directly, without a command line, the downloader checks for the VRAYMTLIBDOWNLOADDIR environment variable. Udemy – AAA Game Props Making For Beginners: Radio & Headphone The default download directory is C:UsersUSERNAMEDocumentsV-Ray Material Library.Udemy – Introduction to 3D Modeling with Nomad Sculpt.Udemy – Adobe Illustrator Complete Mega Course -Beginner to Advanced.Udemy – Learn SketchUp from Zero to Pro: Villa Modelling Masterclass.Domestika – Imaginary Places – Draw, Paint, and Digitize on Photoshop.In this course we will learn the procedure of basic rendering automotive and get a photorealistic image with easy and simple steps, we will setup the light, edit the materials and shooting with camera, then we will render using vray for sketchup 4.2 and make a post-production using Adobe photoshop Title: Udemy – Photorealistic Motorcycle Render Using Sketchup & Vray 4.2