why does view matrix need to be flipY？
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Description
**mapbox-gl-js version**: mapboxV2
### Question
does anyone can explain why we need to flipY while creating view matrix？ I guess it maybe has some bearing on left-hand to right-hand，but I am not sure。
am
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 by reviewing the view-matrix construction in Mapbox GL JS v2 and the surrounding WebGL coordinate-system documentation. Done means adding a clear explanation of why flipY is needed and whether it relates to left- versus right-handed coordinates.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- computer-graphics, documentation
- Issue type
- Documentation
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100