About SDF to semantic field

[MontaEllis]

It seems like we can convert SDFs of different objects to semantic fields via sigmoid.

objsdf/code/model/network.py

Line 405 in cb4cbd1

semantic = self.sigmoid * torch.sigmoid(-self.sigmoid * sdf_raw)

Can this converter be generalized to other methods? Like pi-gan and eg3d.

[QianyiWu]

I haven't tried such a design in a generative model setting. But the key motivation of this semantic field design is to tie the surface of objects with segmentation mask labels. Therefore, if you would like your model meets such a requirement, it is worth giving a try :)