Hi Thank you for answering.
One thing that I checked and it seems that it doesn't work would be to save these weight maps in .obj, it seems that the format doesn't support it. I am not sure about this though.
It would be great if you could support a more complete format, also since you can do animation now, a format like fbx or alembic would be a lot better, and these formats support a lot more features.
https://prnt.sc/1udx69p
This image shows a sphere with two different weight maps. With these weight maps we can control colours or other effects like displacements or instancing other objects using the weight maps as masks.
I will share here a zip file with two fbx files inside, one in binary and the other one in ascii.
https://drive.google.com/file/d/1gWAoHpJJ7wD7-vTiDoGzUwOPaYkRGKHy/view?usp=sharing
I'll leave here also a link that can be useful of other apps (CHAP) that are using obj to export calculated values as weight maps (hydrophobicity, charges, etc.)
https://www.channotation.org/docs/contents_objmtl_file/
Another thing that you should also consider (to improve the interchange of assets/animation etc. between Samson and a 3d app such as Houdini) would be the implementation of USD, most 3d apps are moving to this universal file format
https://graphics.pixar.com/usd/docs/index.html
Again, thank you for your interest.
Best,
Luis