Suggestions for physics on hand tracked objects in a table tennis game

Hi physics people,

I'm not that good with the physics system. I want to make a table tennis game with hand tracked input like the playstation move controllers of razer hydra and I need some help getting the physics right.
Here's what I've done so far:

- cranked up the fixedupdate timestep to 0.01
- different physics material on bat, table and ball
- Moved the controllers with RIgidbody.moveposition and moverotation

I've detected 2 problems so far:
- Even with higher timesteps, the ball still goes through the bat
- The bat does not do some kind of "hit force" do I have to make this myself in the OnColliderEnter? I thought the "bounce" variable of the material is handling that

Help or some good settings for rigidbodys and materials would be much appreciated!

 

Try setting the rigidbodys collision detection to continuous dynamic in the inspector.
Also, you might need to use AddForce / AddTorque instead of moveposition and moverotation. Not sure though.

Also make sure you are doing all of this in fixedupdate and not update.

 

any suggestion?

 

Don't increase the timestep. Instead you want to use Continuous Dynamic collision detection on your rigidbodies.

Do not use MovePosition if you intend to collide with other objects.
From the scripting API documentation, at the bottom:

which consequently avoids any sort of collision.

You will instead want to change the rigidbody's velocity. A PID controller is quite handy for this.