playcanvas / playcanvas/engine
Add an event for XrManager in AR for when it finds the ground/floor and starts tracking camera position
Nobody has claimed this yet.
- Dominant language
- JavaScript
- Stars
- 16.8k
- Forks
- 2k
- Avg merge
- 4h 32m
- Merged PRs (30d)
- 222
Description
The reason for want this event is so that the developer can disable entities when going through the AR tracking phase and only show them once they can be anchored to the floor.
As far as I can tell, WebXR AR starts tracking when a pose is returned at this point:
https://github.com/playcanvas/engine/blob/main/src/xr/xr-manager.js#L689
@Maksims, would you be able to help advise on this please?
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 in src/xr/xr-manager.js around line 689, where WebXR is described as starting tracking when a pose is returned. Trace how XR tracking state is represented and how events are exposed, then define the completion condition for floor anchoring and camera-position tracking. Done means developers can observe that event and show entities only after the AR tracking phase completes.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- ar-vr-xr
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100