Mesh3d ignores lighting with orthographic projection
Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 35/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- python
- Domain
- data-visualization
Research direction
Start by reproducing the Mesh3d example with orthographic and perspective projection in plotly.py 5.6.0, then compare the rendering behavior and investigate the suspected shader path. Done means diffuse and other non-ambient lighting affect the mesh under orthographic projection without regressing perspective rendering.
Written by the indexing model from the issue text.
Description
It seems like lighting of Mesh3d is ignored when orhogonal projection is used, example image:
With exactly the same plot, but with perspective projection, lighting is fine:
I just wonder if this is a known issue, or is it a bug somewhere?
I tried to play around with camera locations and lighting parameters (diffuse, ambient, etc.).
Only ambient lighting has effect when orthographic projection is enabled (as you can see in the picture above the whole mesh only has a single flat color) - maybe shader issue?
The version of plotly.py that I am using is 5.6.0.
- Dominant language
- Python
- Stars
- 18.8k
- Forks
- 2.8k
- Avg merge
- 13h 41m
- Merged PRs (30d)
- 21
Contributor guide
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