Hey. I’ve figured how to do that with a simple .fbx, but it should not be a huge trouble using that with .hda
Will dive into creating HDAs later this week, but if you can check it yourself and tell me if this works, that’d be great.
Basically, you have to assign different Materials within your geo to designated groups, and not colours. Gives you needed option to change different materials in UE4. See screenshots.
Cheers, friend. Let me know if that works for your .hda!
upd - tried it with HDA, get only 1 material output as well.