Poor mesh reconstruction when using volume-color on neus-colmap

[marcostrinca]

Hi @bennyguo. Congratulations for your amazing work and thank you so much for making it public!

I've been testing Neus Reconstruction using colmap and masks. The results are amazing when using volume-radiance, but terrible when using volume-color. I'm using the same command you provided in #60

I'm trying to understand the code to check how the output of volume-radiance is been used to mesh geometry regularization.
Below some test images after 20000 iterations.

Using volume-radiance:

Using volume-color:

Can you please provide me some information about why the mesh is loosing so much quality when trained using volume-color?
Many thanks!