ContactPoint.normal

Description

Normal of the contact point.

    // Print how many points are colliding this transform
    // And print the first point normal that is colliding.
    function OnCollisionEnter(other : Collision) {
        print("Points colliding: " + other.contacts.Length);
        print("First normal of the point that collide: " + other.contacts[0].normal);
    }

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void OnCollisionEnter(Collision other) {
        print("Points colliding: " + other.contacts.Length);
        print("First normal of the point that collide: " + other.contacts[0].normal);
    }
}