importing obj: no volumes available
I'm importing an obj file, but I can't see any "volumes". I only see "faces" and "groups".
As a result, I can't apply substances to them, and also the simulation seems to ignore the 3d model.
I notice that it's not a problem of my particular 3d model, but also the other obj files in your download section.
As an example here you will see that no "volumes" are created when importing one of obj file:
Is there a way to "promote" faces to create a volume?
I can create groups, but still this doesn't work.
Is there any other way to influence the export of my 3d model to have also "volumes"?
I'm exporting my 3d model from 3dsmax. Is there a different procedure to export it?
Is it better to use a different file format that doesn't give this problem?
Can you please advice?
Thanks for your support