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Question by cesomark · Feb 20, 2017 at 09:43 AM · collisioncollision detectioncasting

BoxCast: Ignore Collisions with certain layers?

Hello,

i know it is possible to ignore collisions with raycasts. However i cannot find a solution for how to ignore collisions between my boxcast and certain layers.

In my case i have a plane that is surrounded by walls. I am casting several boxcasts on top of the plane that are supposed to tell me what they are hitting.

My problem is that close to the walls i simply get the collision with the wall, as they are obviously colliding, but i want to make it so that the wall is "invisible" for my box cast.

Is there a solution for that?

Thanks!

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Answer by Kossuranta · Feb 20, 2017 at 10:20 AM

Looks like it works just like it does with Raycast using LayerMask. https://docs.unity3d.com/ScriptReference/Physics.BoxCast.html

 using UnityEngine;
 
 public class MyScript : MonoBehaviour
 {
     public LayerMask myMask;
 
     void Update ()
     {
         if (Physics.BoxCast(transform.position, Vector3.one, Vector3.down, Quaternion.identity, 100f, myMask))
             print("Hit!");
     }
 }

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