https://playcanvas.com/editor/scene/1348360
See the script “arScaling” attached to the “AR UI” entity. It subscribes to the app.touch events, but the callbacks do not occur. The script works outside of WebAR.
To reproduce the issue, please launch the scene on an Android device, select any of the three ovens, select “Raum” in the top-left corner and then “AR Ansicht”. While in AR, the script should let you scale the oven with your fingers, but the touches are never registered. (Some text should also appear when this happens)
Is it possible to receive these callbacks in AR?
While on the topic of AR, it also still seems to not work across most Android devices, as I described in this topic: WebXR: AR doesn't work - #7 by DJ_Coco