UV Coordinates?

[nassosyian]

does the compression method retain UV coordinates?

If not, would it be possible to add support for them?

and if so what kind of effort would that require?

thanks in advance

[iveevi]

At the moment, NGFs do not compress UVs, though it is certainly possible to implement this (with an extra cost in storage). I may look into adding extensions which add properties like UVs, diffuse, roughness, etc.

For UVs the implementation would look something like:

• Add a separate neural network to represent UVs on the surface.
• Implement a method to render UVs for the reference surface and the NGF.
• Include a loss term for the UV images (probably L1, but could be different in general).

If you want to implement this, you should take a look at source/train.py, source/ngf.py and source/render.py.

[nassosyian]

thanks for the fast reply