Function syncCamera

src/core/sync-camera.ts:14–37

(camera: PerspectiveCamera, origin: Matrix4Tuple, mapCamMx: Matrix4Tuple)

export function syncCamera(camera: PerspectiveCamera, origin: Matrix4Tuple, mapCamMx: Matrix4Tuple) {

  projByView
    .fromArray(mapCamMx)
    .multiply(originMx.fromArray(origin));
  projByViewInv
    .copy(projByView)
    .invert();

  updateCamera(camera, projByViewInv);
  camera.updateMatrix();
  camera.updateMatrixWorld(true);  

  camera.projectionMatrix.copy(camera.matrix).premultiply(projByView);
  camera.projectionMatrixInverse.copy(camera.projectionMatrix).invert();

  camera.far = calculateFar(
    camera.matrix.elements[10], camera.matrix.elements[14], camera.near
  )

  camera.userData.projByView = projByView.toArray();
  camera.userData.projByViewInv = projByViewInv.toArray();

}

const updateCamera = (target: Object3D, projByViewInv: Matrix4) => {