Can someone please help me achieve better movement with rigidbody?

When my character runs into a corner it starts to twitch if I use my own scripted movement but if I use the third person controller in the standard assets pack the character behaves normally.

Here is my code.

Code (CSharp):

1. void FixedUpdate()
2.     {
3.         rigidbody.position = Vector3.MoveTowards(rigidbody.position, rigidbody.position +
4.             (new Vector3(Input.GetAxisRaw("Horizontal"), 0, Input.GetAxisRaw("Vertical"))).normalized, Time.deltaTime * 5);
5.     }

 

Try adding a physics material to the player with 0 friction

 

That was all it took! You are my hero.