I've been trying to export something to .dae for a target program whose creator is still working on .fbx support, and rather than bother him to import this new version of something that he already did for me before and give me the project file back, I wanted to try and export this project into something the program can read right now.
But no matter what I do, I seem to lose my smoothing groups. At least, I'm pretty sure I'm doing everything I have to do to keep smoothing groups in export. What could it be that I'm doing wrong?
