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Question by GreenTitan · Mar 11, 2014 at 11:26 PM · javascriptraycastaxis

How to make sure that the raycast points in the right direction?

So this the script I currently am using but for some reason the raycast always points at other direction

 var Hit : RaycastHit;
     
 Debug.DrawLine( transform.localPosition, transform.forward * 100 , Color.blue);
     
 if( Physics.Raycast( transform.localPosition, transform.forward * 100, Hit))
 {
         Debug.Log(Hit.collider.name);
 }

This is the image. As you can see, the raycast is not pointing along the local z-axis as it was meant to.

![alt text][1]

photo.png (169.1 kB)
photo.png (169.1 kB)
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Answer by robertbu · Mar 11, 2014 at 11:29 PM

The major problem here is that you are using Debug.DrawLine() which takes two positions, but you are passing it a position and direction. Change to DrawRay():

  Debug.DrawRay( transform.position, transform.forward * 100 , Color.blue);


The second problem is that Rays are cast in world space, but you are using 'localPosition' for both the Raycast() and the drawing. Change to using 'transform.position' in both places.

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avatar image GreenTitan · Mar 12, 2014 at 12:51 AM 0
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Thanks a lot. It worked.

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