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Black and reflective spots on light images #162

@haihala

Description

@haihala

I'm trying to make a simple fastapi service around Trellis and it's mostly working fine, but for some cases it generates odd results. Take for example the attached "labubu"

Image

This yields a mostly correct topology, but there are weird black spots on the texture.

I used the following settings:

# nvdiffrast simplify
simplify_target: 2000000

# o_voxel postprocess to_glb
decimation_target: 50000
texture_size: 1024
remesh: True
remesh_band: 2
remesh_project: 0

Github doesn't let me upload a .glb, so here is a drive link: https://drive.google.com/file/d/1cwhNmLm_R7y_2k2tE2dDM-s7alWRUCx3/view?usp=sharing

You can use https://sandbox.babylonjs.com/ or other similar tools to view the glb.

I tried adjusting the levels, contrast, saturation, brightness and such and nearly all of them reduce the black surface area, but still leave little dots.

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