Custom basemeshes

General
1

Hey Andrew, I’m looking for some help using custom basemeshes.

I can’t seem to find a set of obj export options in Blender which produce a single connected component, whilst retaining the individual polygroups of my mesh.

I’m starting simple by taking your provided ‘WrapHead.obj’ basemesh, and trying to export it from Blender using various obj export options.
Whatever I try, when I attempt to use the Blender exported version in a Wrapping node, I always get the error: ‘floating geometry contains 8 disconnected polygon components, should be one’.
I can of course use the original WrapHead.obj without any problem.
So, I’m trying to understand exactly how I need to structure my obj file for this to work.

Can you offer any advice as to how I might successfully export a single connected component which retains individual polygroups, which would work in a wrapping node from Blender, or suggest some other software / approach which I should try?

Many thanks,

elf.

2

Hello!

I made a little video with proper way of importing Wrap3 basemesh into Blender and exporting it back https://www.youtube.com/watch?v=nsOfYEojeTA
Blender is of version 2.78

Ivan

3

neat :slight_smile: I always used seperated meshes and before exporting deactivated ‘Objects as OBJ Objects’ and activated ‘Objects as OBJ Groups.’
Anohter way is to separate the mesh via Materials but no idea if Polygroup/Material are truly considered the same within the ‘Select Polygon’ Node.

4

Yes, you are right. Separating the mesh via materials is another option. “Select polygons” node can work with materials as well as with polygroups without any difference.

5

Many thanks Ivan - this is really helpful.