MozillaReality / unity-webxr-export

INACTIVE - Assets for creating WebXR-enabled Unity3D projects.
https://mixedreality.mozilla.org/unity-webxr-export/Build/
Apache License 2.0
626 stars 127 forks source link

Black screen on XR when using SceneManager LoadScene with a heavy scene #440

Closed nickos64252 closed 4 months ago

nickos64252 commented 3 years ago

Hello,

I encountered a problem when using the SceneManager to load other scenes (synchronously or not, additive or not).

I have a first scene containing my camera and other stuff. And another scene containing other 3D models; some are heavy (you can try this one https://sketchfab.com/3d-models/st-pancras-new-church-crypt-85c68a9125f946af8f5102bb426e2f86 but I have other models resulting the same thing). When I add a script to the first scene to dynamically load the second one, everything is fine in Unity or in WebGL; but when I click on the headset to go in XR, everything is black in the headset. If I go back on the browser, the scene is OK. The problem does not appear when calling the function, but I tracked down the problem to the use of it.

I think these steps will reproduce the bug : 1 - create a new project 2 - import WebXR 3 - Download a model (like the one from sketchfab) 4 - create anotehr scene with only the model in it 5 - create a script which call SceneManager.LoadScene with the other scene, and add it to an object in the Desert scene 6 - Add the desert scene and the other scene to the build 7 - Build 8 - Open in browser and go in XR -> on the headset, nothing displayed

I tried on Firefox and Chrome I have an Oculus Quest using Link I am on Unity 2019.3.10

Hope someone could help

Regards

Nicolas