Browser hangs when drill-picking particle system
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- JavaScript
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Description
**Sandcastle example:**
[Sandcastle example](https://cesiumjs.org/Cesium/Build/Apps/Sandcastle/#c=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)
**Browser:**
Chrome v70.0.3538.77
**Operating System:**
windows 10
Contributor guide
Research direction
Start by reproducing the hang with the linked Sandcastle example, using the reported Chrome v70 browser and Windows 10 environment. Trace the particle-system drill-picking entry point from that example; done means drill-picking no longer hangs the browser.
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