mapbox / mapbox/mapbox-gl-js

No antialiasing during globe-to-mercator transition

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bug :lady_beetle:
Dominant language
TypeScript
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Description

Version: 2.9.0-beta.1

Related to https://github.com/mapbox/mapbox-gl-js/issues/11646 and https://github.com/mapbox/mapbox-gl-js/pull/11827

### Expected Behavior: Antialiasing before transition to Mercator

![image](https://user-images.githubusercontent.com/14878684/169608511-cec9a63a-f864-4c0b-96f2-4991b9572786.png)

### Actual Behavior

![image](https://user-images.githubusercontent.com/14878684/169608454-aa70f48a-64b3-4efb-b116-980c3a10d34c.png)

cc @avpeery @karimnaaji

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading the related issue #11646 and pull request #11827, then reproduce the globe-to-Mercator transition in mapbox-gl-js 2.9.0-beta.1. Trace the rendering path responsible for the transition and verify the result against the supplied screenshots; done means antialiasing remains visible before the transition completes.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
computer-graphics, web-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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