Physics simulation

Intermediate Programmer

Warning

Bullet Physics is being phased out. We no longer plan to support or expand its features as our focus shifts to Bepu Physics. We recommend transitioning to Bepu Physics for access to the latest updates and ongoing improvements.

Stride's physics are controlled by the Simulation class. You can change how Stride initializes the simulation by modifying flags in PhysicsSettings, accessed in the GameSettings asset properties.

Note

Your scene must have at least one Collider in order for Stride to initialize the Simulation instance.

• CollisionsOnly initializes the Simulation with collision detection turned on, but no other physics. Objects won't react to physical forces.

• ContinuousCollisionDetection initializes the Simulation with continuous collision detection (CCD). CCD prevents fast-moving entities (such as bullets) erroneously passing through other entities.

Note

The SoftBodySupport, MultiThreaded, and UseHardwareWhenPossible flags are currently disabled.

At runtime, you can change some Simulation parameters:

• Gravity — the global gravity, in world units per second squared
• FixedTimeStep — the length of a simulation timestep, in seconds
• MaxSubSteps — the maximum number of fixed timesteps the engine takes per update

See also

• Colliders
• Collider shapes