Infinite scroll: buggy culling of primitive to the west of the IDL
- Dominant language
- JavaScript
- Stars
- 15.7k
- Forks
- 3.9k
- Avg merge
- 4d 6h
- Merged PRs (30d)
- 34
Description
In infinite scroll mode of 2D scene, primitives would be culled to the west of the International Date Line (180° longitude).
Sandcastle example:
https://sandcastle.cesium.com/#c=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
Browser:
Firefox Developer Edition 101.0b6
Safari 15.4, WebKit 16614.1.9.7
Operating System:
MacOS 11.6.2
EDIT:
updated example.
Contributor guide
Research direction
Start by reproducing the linked Sandcastle example in infinite scroll mode, focusing on the 2D scene near 180° longitude in Firefox or Safari. Trace the primitive culling behavior around the International Date Line. Done means primitives west of the IDL remain visible when they should be rendered.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100