ManimCommunity / ManimCommunity/manim
Curves are slightly thicker when rendering with OpenGL due to anti-aliasing
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opengl
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- Python
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Description
Description of unexpected behavior
Comparing the output of cairo and OpenGL rendering it is noticeable that curves are slightly thicker when rendering with OpenGL:
This is caused by anti-aliasing (and in particular the thickness can be controlled via the value of OpenGLRenderer.anti_alias_width).
We should discuss whether we
- simply keep the slightly thicker curves,
- adjust
OpenGLRenderer.anti_alias_width, - or pursue a different approach to restore the cairo look and feel.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start at OpenGLRenderer.anti_alias_width and compare the cairo and OpenGL rendering paths described in the issue. Determine which of the three listed approaches is accepted, then verify that curve thickness matches the intended cairo look; the issue names no file or test.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100