SGVec3d viewPos = globals->get_current_view()->get_view_pos();
double vis = _visibilityMeters->getDoubleValue();
schedule_tiles_at(SGGeod::fromCart(viewPos), vis);
SGVec3d viewPos = globals->get_current_view()->get_view_pos();
double vis = _visibilityMeters->getDoubleValue();
schedule_tiles_at(SGGeod::fromCart(viewPos), vis);