Control camera up for viewFrom entity tracking
- Dominant language
- JavaScript
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Description
Dear Cesium Team
I am experiencing some camera handling issues while using 'trackedEntity': The camera rotation seems to be locked to an angle that is off by 90 degrees from what I am looking for (camera behind aircraft/horizontal horizon), see:

The sandbox example is [here](https://sandcastle.cesium.com/index.html#c=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).
Thank you very much for any insight!
Contributor guide
Research direction
Reproduce the behavior in the linked Sandcastle example, starting with the trackedEntity and viewFrom camera handling described in the issue. Compare the current camera orientation with the requested behind-aircraft, horizontal-horizon view; done means the camera can control its up direction without the reported 90-degree offset.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 28/100