A flag enum to determine which simulation stages to run.
See Also: Physics.RunSimulationStage, PhysicsScene.RunSimulationStage.
| None | Shorthand for none of the SimulationStages. | 
| PrepareSimulation | This stage prepares the physics scene for simulation. | 
| RunSimulation | This stage advances the scene in time. | 
| PublishSimulationResults | This stage publishes simulation results. | 
| All | Shorthand for combining all the SimulationStages. |