I want to project the world position to screen. And i found Vector3.project(camera). But I got Infinity. var geom = new THREE.SphereGeometry(0.1,30,30); var mat = new THREE.MeshBasicMaterial({color: 0xffffff}); var mesh = new THREE.Mesh(geom, mat); mesh.position.set(1,2,0); scene.add(mesh); var po…

You have to call camera.updateMatrixWorld(); before you use Vector3.project(). https://jsfiddle.net/f2Lommf5/5772/

Project world position to screen coordinate system

kurosh March 2, 2020, 10:52am 7

related question: how about when you change the viewport as well? cause it doesn’t seem to work as expected if you set the viewport!
here the screenshots:

Creating overlay for 3D objects in DOM layer in WebXR

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Project world position to screen coordinate system

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