warning: Invalid geometric normal (-0 0 0)

[LeoYfver]

By far the most common error we get is this:

warning: Invalid geometric normal (-0 0 0) for "|data|geo|alembic|9572D93C|subdiv"

usually it errors sometimes and when retrying they go through in the end.

My question are:

1. what exactly is this error?

2. how do i fix it?

3. how do i figure out which node this is in my scene?

[bdancer]

1. Well it is what is says =) Some normals in the Alembic file are invalid... or some degenerate faces present, but those should be eliminated before subdivision.
2. You could try checking normals with some vex or smth and check if some of them are all 0 before baking into alembic...
3. In the vrscene file check which Node plugin uses that "|data|geo|alembic|9572D93C|subdiv" geometry plugin. That node plugin scene_name parameter will contain object scene path.

[LeoYfver]

1. we probably have some degenerate faces
2. The geometry we save save down to alembic dont include normals in the spreadsheet, so no point or vertex normals. doesnt it create geometry normals at rendertime? maybe its degenerate faces causing them to be 000
3. that worked perfectly thanks!

[bdancer]

LeoYfver, could u send me a hip with that Alembic? I hope we could fix this