WebXR aliasing broken on Quest2 since v5.24.0

Bugs
1

Hi,
I have recently upgraded to Webpack 5 and am now moving to versions of babylon.js greater than 5.21.0.

I noticed that in version 5.24.0 anti-aliasing has been disabled on the Quest 2. The issue seems similar to the aliasing issue I described here: WebXR layers feature broken on Quest 2 with skybox and environment - #10

Playground showing the aliasing issue: https://playground.babylonjs.com/#9K3MRA#741
Playground showing a workaround by forcing the samples to 4 (restoring anti-aliasing): https://playground.babylonjs.com/#9K3MRA#808

Thanks

2

Hi,
If I understand correctly, you are saying that since > 5.21 the samples are set incorrectly when using the quest.
Iā€™ll look into it. The code hasnā€™t changed, so I find it a little mysterious :slight_smile:

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4

just to confirm, the issue was introduced in 5.24.
5.23 is fine

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5

got it. letā€™s see what we damaged in the process :slight_smile:

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6

Seems to be related to this PR - OIT aliasing fixes by CraigFeldspar Ā· Pull Request #12916 Ā· BabylonJS/Babylon.js (github.com)

iā€™ll have to debug this further, but at least we found the culprit.

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7
2 Likes
9

Thank you for fixing that :smiley:

10

Hi @RaananW ,
unfortunately, it looks like your fix didnā€™t work as I still see the issue in Babylon.js 5.29.0 and the playgrounds I posted at the top of this thread confirm this.

11

iā€™ll check that, thanks

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13

Sorry for the long delay - Fix aliasing issue in webxr multiview by RaananW Ā· Pull Request #13217 Ā· BabylonJS/Babylon.js Ā· GitHub this will fix it.

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