Howdy, I’ve been testing out the new Alembic importer plug-in in the 4.13 preview. So far it seems like a feasible option but I’ve encountered a few issues. Some I can work around and some I can’t.
First, certain animated caches immediately crash the editor when I import them as geometry cache. I can’t provide the cache here for sake of information security (its any character cache) but I may be able to create a simplified non-sensitive example case. Unfortunately, the crash does not provide the standard bug report dialog.
Second, applying a shader to a geometry cache with the “PN Tessalation” mode breaks down in the render. Here is a screenshot of a geometry cache sphere with a solid white shader.
Third, the “Materials” section of the GeometryCacheActor details works as expected however if I save the level then close and re-open the editor this section usually disappears, this also usually breaks material assignments.
Related to this I’ve noticed that opening a geometry cache in the asset editor shows a “Materials” section but does not allow assignment. Only assignment to the actor is possible. Is this by design?
I’m still fairly new to Unreal and the editor so some of these issues may be me a problem with my work flow. Let me know if other information or materials will help.