const frame = session.getVKFrame(canvas.width, canvas.height)
const ar_camera = frame.camera
camera.matrixAutoUpdate = false
camera.matrixWorldInverse.fromArray(ar_camera.viewMatrix)
camera.matrixWorld.getInverse(camera.matrixWorldInverse)
根据视图矩阵viewMatrix似乎可以获取相机的当前坐标,但是在世界坐标系中的姿态如何获取?
let position = new this.THREE.Vector3();
let quaternion = new this.THREE.Quaternion();
let scale = new this.THREE.Vector3();
camera.matrixWorld.decompose(position, quaternion, scale);