Set init texture for appearance modeling

[foxie-arctic]

Hi @ARuiChen. Thank you for your work on Fantasia3D!
I am wondering that if there's any way in your code to offer an initial texture to the dlmesh in appearance modeling stage from an existing .mtl file. It will help me a lot if there's any way to make it work!

[hxj2580]

Same question！

[abrar-khan-368]

+1

[ARuiChen]

There are two ways to achieve that:
1、Optimization in 3d appearance field. Before that, you need an initial appearance reconstruction process. You can refer to https://github.com/DSaurus/threestudio-meshfitting or https://github.com/NVlabs/nvdiffrec/blob/main/geometry/dmtet.py
2、Optimization in 2d texture map. You can refer to https://github.com/NVlabs/nvdiffrec/blob/main/geometry/dlmesh.py