I'm reporting an issue that presents itself when running the demo live on a Meta Quest 2 headset and on both of the Chrome WebXR simulators ('WebXR API Emulator' & 'Immersive Web Emulator').
The issue is that while the left eye perfectly tracks head movements, the right eye 'shakes' when using live on a headset (continuously while using the headset) or while using the simulators and rotating the simulated headset. The positioning of both eyes and head tracking is almost perfect, and the depth perception of the world is pretty much right on (other than the small shaking).
I've recorded a video showing the issue:
https://www.youtube.com/watch?v=Ur0V9FeK62Y
You can also reproduce the issue yourself by opening the WebXR page below (which contains an instance in github pages of the cesium-vr code with almost no changes) in your Meta Quest 2 or in a Chrome simulator:
https://rumicuna.github.io/cesium-vr/htdocs/
To reproduce, zoom close to the ground and move your head around, or if using the Chrome simulators, rotate the simulated headset slowly (as shown in the video above). The issue does not present itself if one is far away from the ground.
Note that if you are testing using a headset, even though the "right eye shake" issue can also be reproduced on a Quest Pro, at the moment the live demo does not work so well on a Meta Quest Pro because of an eye tracking mismatch issue reported separately here.
I'm reporting an issue that presents itself when running the demo live on a Meta Quest 2 headset and on both of the Chrome WebXR simulators ('WebXR API Emulator' & 'Immersive Web Emulator').
The issue is that while the left eye perfectly tracks head movements, the right eye 'shakes' when using live on a headset (continuously while using the headset) or while using the simulators and rotating the simulated headset. The positioning of both eyes and head tracking is almost perfect, and the depth perception of the world is pretty much right on (other than the small shaking).
I've recorded a video showing the issue:
https://www.youtube.com/watch?v=Ur0V9FeK62Y
You can also reproduce the issue yourself by opening the WebXR page below (which contains an instance in github pages of the cesium-vr code with almost no changes) in your Meta Quest 2 or in a Chrome simulator:
https://rumicuna.github.io/cesium-vr/htdocs/
To reproduce, zoom close to the ground and move your head around, or if using the Chrome simulators, rotate the simulated headset slowly (as shown in the video above). The issue does not present itself if one is far away from the ground.
Note that if you are testing using a headset, even though the "right eye shake" issue can also be reproduced on a Quest Pro, at the moment the live demo does not work so well on a Meta Quest Pro because of an eye tracking mismatch issue reported separately here.