Deterministic Simulations

[IbrahimSam96]

I want my physics world to act the same all the time however; I seem to have different results after each "run". I have a dynamic ball collider with activeCollisionTypes={2} and a fixed ball collider with activeCollisionTypes={2}.

Ball is dropped from the same position every run and I expect it to have the exact result all the time.

    <RigidBody
      name={`ball-${ballId}`}
      key={ballId}
      ref={rigidbody}
      type="dynamic"
      colliders="ball"
      userData={{
        type: "ball",
        id: ballId,
      }}
      frictionCombineRule={CoefficientCombineRule.Max}
      position={[position.x, position.y, position.z]}
      activeCollisionTypes={2}
    >



          <RigidBody
            name={`pin-${i}`}
            key={`pin-${i}-${j}`}
            type="fixed"
            colliders="ball"
            userData={{
              type: "pin",
            }}
            position={[pinY, pinX, pinZ]}
            activeCollisionTypes={2}
          >

[IbrahimSam96]

@wiledal Hi would appreciate you're take on this! I have a hunch it's because of same ball collider types

Screen.Recording.2024-08-14.at.9.00.13.PM.mov