The collider that was hit by the controller.

	// Paint red the collider we hit.
	function OnControllerColliderHit(hit : ControllerColliderHit) {
		hit.collider.renderer.material.color = Color.red;
	}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void OnControllerColliderHit(ControllerColliderHit hit) {
        hit.collider.renderer.material.color = Color.red;
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def OnControllerColliderHit(hit as ControllerColliderHit) as void:
		hit.collider.renderer.material.color = Color.red