title: Unity3D - Mesh Collider in imported blender mesh doesn't work
body: <p>I'm trying to apply a script that changes the material color when the cursor is on top of the object. Here's the script:</p>
  
  <pre><code>using System.Collections;
  using System.Collections.Generic;
  using UnityEngine;
  
  public class ChangeColor : MonoBehaviour {
  
      public Color startColor;
      public Color mouseOverColor;
      bool mouseOver = false;
  
      void OnMouseEnter(){
          Debug.Log("START");
          mouseOver = true;
          GetComponent&lt;Renderer&gt;().material.SetColor("_Color",mouseOverColor);
          Debug.Log("TESTE");
      }
  
      void OnMouseExit(){
          mouseOver = false;
          GetComponent&lt;Renderer&gt;().material.SetColor("_Color", startColor);
      }
  
  }
  </code></pre>
  
  <p>The object is a simple triangle:</p>
  
  <p><a href="https://i.stack.imgur.com/r1HLk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/r1HLk.png" alt="enter image description here"></a></p>
  
  <p>The script only works when the object has a <em>Sphere Collider</em> (what i'm looking for is to use a Mesh Collider).</p>
  
  <p>Can someone help me understand how to use it with a Mesh Collider?</p>
  
  <p>Thank you</p>