Falling dominoes vibrating instead of settling on ground

I created a video at http://www.youtube.com/watch?v=Apxb7xtmm7E&feature=youtu.be which demonstrates the issue. I knocked down a domino, the rest fell in order; but they would vibrate before settling.

- Dynamic Friction: 0.2
- Static Friction: 0.4
- Bounciness: 0

- Mass: 0.08
- Drag: 0
- Angular Drag: 0.05
- g = -981
- Size: 2.5 x 1 x 5


Code to make it fall:

Code (csharp):

1. Vector3 force = -thisTransform.forward * 30.0f;
2. thisRigidBody.AddForceAtPosition(force, thisTransform.position + new Vector3(0,5.0f,0));

I tried the following code to make the dominoes sleep after they go below a certain threshold:

Code (csharp):

1. void FixedUpdate()
2. {
3.     if (IsSectionPlaying  !thisRigidBody.IsSleeping()
4.          thisRigidBody.velocity.sqrMagnitude < sqrSleepVel
5.          thisRigidBody.angularVelocity.sqrMagnitude < sqrSleepAngularVel)
6.     {
7.         thisRigidBody.Sleep();
8.     }
9. }

But often times that made them freeze mid-fall.

I was thinking of only making it sleep if it was facing the ground by adding a dot product threshold, but I feel like I'm overcomplicating things. I also tried adding more drag, but that didn't help.

Does anyone have suggestions on how I should approach this?

 

Is this script on the first domino? All of them? I would think they only need gravity plus one object to knock over the first domino.

 

The code to make a domino fall is only executed on the first one when you click on it....but yes they're all the same script.

 

So, why does you code look so complicated? I mean, why not just have some collider, translate() into the first domino. The domino would have no script. Just physics. Once the collider, that pushes the first one, like a finger or soemthing, turn it off. Should the rest not just fall?

 

I was able to resolve the issue by changing some settings in the PhysicsManager:

- The bounce threshold was changed from 2 to 800
- The min penetration for penalty was changed from 0.01 to 0.1

 

Awesome.