updateCamera method

@override void updateCamera(Camera camera)

Implementation

@override
void updateCamera(Camera camera ) {
  if ( session == null ) return;
  cameraVR.near = cameraR.near = cameraL.near = camera.near;
  cameraVR.far = cameraR.far = cameraL.far = camera.far;

  if ( _currentDepthNear != cameraVR.near || _currentDepthFar != cameraVR.far ) {
    // Note that the renderState won't apply until the next frame. See #18320
    session?.updateRenderState( {
      'depthNear': cameraVR.near,
      'depthFar': cameraVR.far
    }.jsify() );

    _currentDepthNear = cameraVR.near;
    _currentDepthFar = cameraVR.far;
  }

  final parent = camera.parent;
  final cameras = cameraVR.cameras;

  _updateCamera( cameraVR, parent );

  for (int i = 0; i < cameras.length; i ++ ) {
    _updateCamera( cameras[ i ], parent );
  }

  cameraVR.matrixWorld.decompose( cameraVR.position, cameraVR.quaternion, cameraVR.scale );

  // update user camera and its children

  camera.position.setFrom( cameraVR.position );
  camera.quaternion.setFrom( cameraVR.quaternion );
  camera.scale.setFrom( cameraVR.scale );
  camera.matrix.setFrom( cameraVR.matrix );
  camera.matrixWorld.setFrom( cameraVR.matrixWorld );

  final children = camera.children;

  for (int i = 0, l = children.length; i < l; i ++ ) {
    children[ i ].updateMatrixWorld( true );
  }

  // update projection matrix for proper view frustum culling
  if ( cameras.length == 2 ) {
    setProjectionFromUnion( cameraVR, cameraL, cameraR );
  }
  else {
    cameraVR.projectionMatrix.setFrom( cameraL.projectionMatrix );
  }
}