059285ed6f
Extend our own particle manager to replace the OSG particle system updater. This fixes thread-safety and also timing (better match to simulation dt values). We also use weak pointers (observer_ptr in OSG terminology) to ensure particle systems are released once their frame is gone.
SimGear - Simulator Construction Tools ====================================== http://www.flightgear.org SimGear is a set of open-source libraries designed to be used as building blocks for quickly assembling 3d simulations, games, and visualization applications. SimGear is developed by the FlightGear project and also provides the base for the FlightGear Flight Simulator. Source code for SimGear is released under the GNU Library General Public License (LGPL) - see COPYING for license details. See INSTALL file for help on building SimGear.