I need to create my own .P2M files for custom appearances without using jpegs. There are thousands of fabrics that our company uses and for efficient, we are in the process of adding fabric appearances to our custom appearance library. Therefore, I need to create the geometry for some of these fabrics and turn them into .P2M files. I have jpegs. However, there is a checker board appearance when using jpegs. How do I create custom .P2M appearances, thanks for your help.