Forum: Poser - OFFICIAL


Subject: Poser Pro, BUMS and rsrs

ronknights opened this issue on Apr 26, 2002 ยท 26 posts


MartinC posted Sat, 27 April 2002 at 4:20 AM

Attached Link: http://www.soft-rabbit.com/

This is not meant as a complaint against sturkwurk or anyone else who offered help and suggestions, but .bum files *cannot* be converted into .jpg (or similar) without major difficulties. I'll try to explain - both Poser and PPP need to "convert" bumpmap templates into a different content before they use them, the difference is just the time when the conversion takes place: - P3 and P4 convert them *once* and store the result in a .bum file - PPP converts it *every* time in memory when it accesses the bumpmap template When PPP finds a bumpmap reference, it looks for the type: - if it is a .bum file then it just uses it - if it is a .jpg or similar, it *converts* it and uses the conversion This means that if you use Photoshop to turn a .bum into a jpg and then load the .jpg in PPP, it will be converted *twice* and this spoils it completely. If the bump is nothing but "ripples on a surface", the difference won't be significant, but if the bump is supposed to show specific details, then it gets ruined. The only way to convert a .bum into a .jpg will be to "un-do" the original conversion, and that is absolutely non-trivial. To my knowledge, my filters for GraphicConverter (Mac only) are the only tool so far that is able to do that job, but unfortunately I'm currently unable to release a version for PC.