playcanvas / playcanvas/engine

Bloom post effect creates 'outline' on models via the Oculus Quest browser

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area: graphics area: xr
Dominant language
JavaScript
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Description

Forum thread: https://forum.playcanvas.com/t/edge-of-model-flickering-in-immersive-vr/23402

Looks like it's specific to the browser and not VR in this case as the issue is visible in non VR. Haven't yet been able to reproduce the issue on a desktop browser yet.

The outline colour is the same colour as the fill colour on the camera if that helps narrow down a cause.

Project: https://playcanvas.com/editor/scene/1305663

Video:

https://user-images.githubusercontent.com/16639049/148250825-ce938a0f-cfcc-4f5a-9c22-dbc7a66c90ca.mp4

Notice the launch tab, the outline on the models changes as I change the fill colour

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 with the linked forum thread, PlayCanvas project, and video, then compare the bloom post effect on the Oculus Quest browser in VR and non-VR. Investigate why the model outline follows the camera fill colour; the issue is done when the outline no longer appears or changes with that colour.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
computer-graphics, web-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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