As far as I know, .pxr is an ancient image file format, used by the Pixar Image Computer. http://www.specktech.com/Images/832wide/Pixar_Hardware.jpg It's a limited format, I don't think it supports even Alpha. The Pixar Image computer never really went anywhere but the .pxr file format is in alot of software for backwards compatibiity sake. nuke-cg 09 September 2003, 03:22 PM