We are trying to use boxes, imported from a VRML-file, to handle collision in a SimpleUniverse. These boxes are not ment to be visible, we are only interested in using their bounds for collision detection. How do we make these boxes invisible without using transparency? Johanna and Sofia =========================================================================== 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".