Recipe: Tuning bounciness and friction

restitution controls bounce; friction controls sliding. Both are available on PhysicsBodyConfig and BoundariesConfig.

Body tuning

Modifier.physicsBody(
    key = "ball",
    config = PhysicsBodyConfig(
        restitution = 0.8f,
        friction = 0.2f,
    )
)

Boundary tuning

PhysicsBox(
    config = PhysicsBoxConfig(
        boundaries = BoundariesConfig(
            restitution = 0.3f,
            friction = 0.4f,
        )
    )
) { /* ... */ }

Tips

• Keep restitution in [0..1] for stable UI scenes.

• Increase friction to reduce sliding and stacking jitter.