can you provide a demo to extract high quality color mesh?

[tiexuedanxin]

[sxyu]

While this would be useful, extracting a high-quality color mesh from NeRF is generally nontrivial, since the color at each point does not necessarily correspond to the ray colors. Another issue is that in the official pixelNeRF models here, the geometry (sigma) is currently dependent on view-directions, which makes mesh extraction tricky. This design decision was to provide some cues about the camera directions, but it would be best to modify the model so sigma does not depend on view-directions for purposes of mesh extraction.

[anilesec]

But in original NeRF, they use view directions as zeros to extract a mesh. Could the same be used here?