facebookresearch/meshtalk

mesh faces missing for multiface

songtoy opened this issue · 4 comments

The mesh graph (.obj) multiface provided has almost 2000 faces less than the mesh by meshtalk (.obj). I wonder how to cope with it. Should I do some remeshing work to connect the isolated vertices together?

Thanks for bringing this to my attention. I updated the conversion script from multiface to meshtalk. You can now create .obj files that are compatible with meshtalk following the instructions https://github.com/facebookresearch/meshtalk/blob/main/README.md#training-your-own-meshtalk-version

@alexanderrichard thank you for your timely reply, the problem should be solved now. And I'm still curious about one thing that there are 12294 triangles in the face_template.obj you provided, while 10936 triangles in multiface topology. I'm a noob in this field, and I don't know the underlying mechanism.

Multiface uses a coarser topology, for example eye lids are not modeled with the geometry but via the texture. In meshtalk, we wanted to have eye lids modeled by the geometry as there is no texture. Therefore, we chose a more fine-grained topology in meshtalk than in multiface.

That's really helpful. Thank you for your generous help!