| step | The time to advance physics by. | 
| stages | An enum to specify which stages to run. | 
| options | A flag enum to specify any additional simulation options. | 
Runs specified physics simulation stages on this physics scene.
        Stages are processed in this order:
        
          
            PrepareSimulation
          
          
            RunSimulation
          
          
            PublishSimulationResults
          
        
        
          step argument can be any number if RunSimulation stage is not specified.
See Also: PhysicsScene.Simulate, Physics.Simulate.