waitFrame method

@override Future<XrFrame> waitFrame()

Waits for the runtime's next frame and says what it will be: the runtime's pace, so it completes when the runtime is ready for the frame to be drawn.

Implementation

@override
Future<XrFrame> waitFrame() async {
  if (!_state.draws) {
    throw StateError('the session is ${_state.name}: no frames to wait for');
  }
  return frameAt(this, _next++);
}