Backface colors flipped when using different and custom backface shading
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Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 45/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- python
- Domain
- computer-graphics
Research direction
Start by running the Python MWE with the supplied bunny_oded.obj mesh and selecting backface shading → custom. Trace the backface-shading path responsible for choosing the front and inverted colors, then verify that the mesh displays the correct custom backface colors without treating all faces as inverted.
Written by the indexing model from the issue text.
Description
Hi!
I am using polyscope in python on my intel Mac. When I read this mesh and choose the "backface shading -> custom" option, all faces assume the "inverted" color, despite this mesh being definitely not inverted. Here's a MWE:
import igl
import polyscope as ps
V, _, N, F, _, _ = igl.read_obj("test/unit_tests_data/bunny_oded.obj")
ps.init()
ps.register_surface_mesh("bunny", V,F)
ps.show()
Here is what I see:
- Dominant language
- C++
- Stars
- 2.2k
- Forks
- 242
- Avg merge
- 11m
- Merged PRs (30d)
- 1
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