Hello, To answer my own question, here is the solution.
I wasn't aware enough about Java3D's and its underlying layer OpenGL's techniques. Apparently, to do backface (or frontface) culling, OpenGL does not rely on the normals you provide him, but on what IT considers to be back and front. That is, it considers the way you order the vertices you give him and deduces the direction according to clockwise and counterclockwise order. So I could solve my problem. Thanks anyway. =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
