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Question by 24adithya · Jun 30, 2012 at 10:49 AM · collisioncolliderterraincolliders

OnCollisionEnter with terrain not working

I am trying to make a sphere collide with a terrain. My sphere is having a sphere collider and a rigid body attached to it. For the sphere collider ,the 'is trigger' is unchecked and for the rigid body 'is kinematic' is unchecked while the 'gravity' is checked.

For the terrain, in the terrain collider the 'is trigger' checkbox is unchecked again.

My script attached to the sphere is as follows :

 void OnCollisionEnter(Collision collision)
     {
         Debug.Log("Inside OnCollisionEnter ");
         if(collision.gameObject.tag == "Terrain")
         {
             Debug.Log("Hit !!");
         }
     }

The sphere does drop down and collide with the terrain but this code isn't getting called at all !!

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avatar image Chimera3D · Jul 01, 2012 at 03:16 AM 1
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If it isn't getting called at all something must be wrong with your code elsewhere. However by default terrains don't have a "Terrain" tag...

avatar image Maurice_B · Apr 26, 2014 at 07:20 PM 0
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same here

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Answer by hijinxbassist · Jul 01, 2012 at 06:57 AM

As @noob-e stated, the terrain does not start with a tag of "Terrain". This is most likely the problem. If the terrain does not have this tag:

Click Terrain in Hierarchy

Click Tag ("untagged") button at the top left of the Inspector

Select - Add Tag - at the bottom of the list

Expand the tags Array by clicking the triangle >

Add a new tag in an empty(now selected) area and name: Terrain

Click on the terrain again in the hierarchy

Select the newly created "Terrain" tag

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