Attached Link: Fragmented OBJ files

It has to do with spam within the obj file format that can ghappien during the mapping/grouping process.

Regards,
Anton

Message edited on: 04/24/2005 16:35

Hi Anton, Nice to see you around. Thanks for the link. Clint

Thanks. np. SOme people don't have this issue with firefly. Also not all obj files are fragmented. It can be a figure or a prop or an imported obj. Basically it is just about some people having a hang on the firefly calculation that reads the materials from the mesh on rendering. This particular issue has a very specific symptom being a long hang on the "adding objects" status bar. Using a script or utility for defragmenting the obj g/usemtl lines is really just another thing people should do during content creation, like adding a white backdrop to a texture, etc. It just gets added to the list of things to check for when building a product.

For the techno-ninnies like me, how would I know that the problem is fragmation? I read the explanation but for me, it doesn't mean much. I understand very little about how these things work. I am referring to products we already have. With any luck, merchants will be working on correcting that.

For me, the symtom is a very long hang when the "adding objects" status bar comes up. The bar should only appear briefly after the "adding textures" status bar. If you are encountering a long hang as described then it may be this issue.

You may not have any problems at all. It seems to be a firefly/hardware calculation or something so not everyone may run into this. But for some it can make a product a joy or a pain to work with. If you go to the thread and use Spanki's program to resave the obj(always make a backup), and the hang goes away, then contact the author so they are aware in making future items.

Message edited on: 04/24/2005 18:42

Excellent suggestion. Thank you.

Np. I am just glad I ran into it on my system. Otherwise I would never been curious enough to dig into it.

Thanks for the tip. I'll make sure I STOMP my objs from now on !

question....is this an .obj specific problem? or can it affect .pp2/cr2 files with embedded geometry?

Andi3d, I am not sure. For some reason I don't think it would do it with embedded geometries. I am not sure though.

"question....is this an .obj specific problem? or can it affect .pp2/cr2 files with embedded geometry?" I also don't know, but suspect the oposite of Anton ;). Another reason not to use embedded geometries.