lucasm
September 20, 2021, 6:57pm
1
Hi, I’ve found a bug with the build before latest. I haven’t seen this mentioned in the release notes, so posting.
Alembic files are imported with incorrect vertex orders, causing normals and uvs to be scrambled in a bizzare but consistent and fixable way.
you can see the problem here with the simpler 5 point plane. Below is a properly imported OBJ.
and here is the same geo, imported as alembic:
Here is the folder with 3d assets and example file! Hope this helps.alembic import bug.zip (55.6 KB)
JetXS
September 20, 2021, 7:05pm
2
Hey @lucasm
Thanks for the report and example files.
I will log an issue for a developer to look into it.
Interestingly, the Direct To GPU toggle and/or Compute Normals do solve the issue, or at least partially.
Best,
1 Like
lucasm
September 20, 2021, 10:33pm
3
Ya I noticed that as well. I think the calculate normals just overwrites whatever is there using some td native algo( like facet top?) The uvs when i turned that on still seemed wonky.
1 Like
eric.b
October 5, 2021, 6:19pm
4
This will be fixed in the next official build, 2021.15270+. Thanks for the report.
1 Like
