I found a problem where the WebXR position doesn’t match the camera position when launching. Its facing to the left or right. There seems to be noway to reset it. Any ideas ? Its working on the stereo vr example but not the equi example. https://dev.electroteque.org.s3.amazonaws.com/three/examples/…

Another example without camera position code. It defaults to this tilted view like in the webxr session. My own videos have the same problem when orbitcontrols is disabled. How to correct this ? https://dev.electroteque.org.s3.amazonaws.com/three/examples/webgl_video_panorama_equirectangular2.html

I believe this is what I need to do. Ive tried everything including something like this renderer.xr.addEventListener(‘sessionstart’, () => { renderer.xr.getCamera().position.copy( camera.position); renderer.xr.getCamera().lookAt( camera.target ); /…

This is very strange, without a position set, the video starts 90 degrees to the real front of the camera. but in webxr it starts 180 degrees from that position. WebXR camera really needs to take the initial position from the non webxr camera. Even if I shift the geometry instead. It will show flipp…

Another test with a rotated mesh. WebXR starts in the opposite direction. Does this code need an offset added to get the front of the camera ? camera.matrix.fromArray( view.transform.matrix ); camera.projectionMatrix.fromArray( view.projectionMatrix ); https://dev.electroteque.org.s3.amazonaws.co…

I made another test that provides a quick fix. I position the camera to the front. Then I have to flip the mesh in webXR and the opposite direction. Then move it back. renderer.xr.addEventListener('sessionstart', () => { mesh.rotation.y = -pos; renderer.xr.getCame…

yes on session start it needs an offset set. But there is bugs like with the non webxr camera initial x position needs to be set. It doesnt show exactly centre without fractions added. const xrManager = this.renderer.xr, camera = this.camera, baseReferenceSpace = xrManager.getReferenceSpace…

how do you get offsetRotation.w from the camera rotation ? camera rotation is vec3, const xrManager = renderer.xr, baseReferenceSpace = xrManager.getReferenceSpace(), offsetPosition = camera!.position, offsetRotation = camera!.rotation const transform = new XRRigidTransform(offsetPo…

I’m sorry I don’t use bloaty transpiling ts. So don’t get that error. Maybe have to leave it off ? I just rollup raw es6 and don’t get any undefined error. It works for me. But initial camera rotation for non webXR is still a problem where I have to force an x position to face the front of the camer…

This is actually a use-case for using bloaty transpiling. The error is a genuine pointer to a problem: namely that the camera rotation is a Vector3 “Euler” and the XRRRigidTransformation requires a Vector4 “Quaternion”. You can’t mix the two successfully. It’s easily solved though by retrieving came…

Initial WebXR position same as camera position

Questions

Clayton_Rothschild September 7, 2022, 7:37pm 7

Did you find a solution @danrossi?

Topic		Replies	Views
Camera positions for non-webxr and WebXR don't face the front and centre Questions webxr	0	427	July 28, 2022
Webxr camera is not at position of perspective camera Questions webxr	18	3182	December 24, 2022
WebXR getViewerPose ( referenceSpace ) Questions device-orientation , vr , webxr , orientation , pose	3	1191	August 24, 2023
webXR camera position always zero Questions webxr	4	1229	April 10, 2023
Webxr camera start at different position than in normal view position Questions webxr	0	592	December 19, 2022

Initial WebXR position same as camera position

Related topics