How to Raycast on 45 Degree?

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Hello. I need 2 rays from character to left and the right in 45 Degree? How can i do that? Thanks.

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Answer by aldonaletto · Jul 22, 2011 at 05:26 AM

You can derive the +45 and -45 vectors just adding or subtracting transform.forward and transform.right:

   var right45 = (transform.forward + transform.right).normalized;
   // since transform.left doesn't exist, you can use -transform.right instead
   var left45 = (transform.forward - transform.right).normalized;

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Alavardo · Jul 22, 2011 at 05:29 AM 0

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Thank you friend. You really help me!

Alavardo · Jul 22, 2011 at 05:32 AM 0

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One question, if that be 90 degree?

aldonaletto · Jul 22, 2011 at 06:21 AM 1

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If you want 90 degrees to the right, just use transform.right. For 90 degrees to the left, you can use -transform.right ("transform.left" doesn't exist in Unity, but in the vector world left is the same as -right)

aman_jha · Aug 16, 2016 at 06:48 PM 0

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@aldonaletto how would you use a custom angle, like 37.5 degrees to the left?

Bunny83 aman_jha · Aug 16, 2016 at 07:06 PM 1

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 var a = yourAngleInDegree * $$anonymous$$athf.Deg2Rad;
 var dir = (transform.forward * $$anonymous$$athf.Cos(a) + transform.right * $$anonymous$$athf.Sin(a)).normalized;

an alternative:

 var dir = Quaternion.Euler(0,yourAngleInDegree,0) * transform.forward;

elijahjns Bunny83 · Oct 09, 2020 at 03:57 AM 0

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var dir = Quaternion.Euler(0,yourAngleInDegree,0) * transform.forward; Failed for me.

var a = yourAngleInDegree $$anonymous$$athf.Deg2Rad; var dir = (transform.forward $$anonymous$$athf.Cos(a) + transform.right * $$anonymous$$athf.Sin(a)).normalized; ^^^^ Worked very well. Thanks!

How to Raycast on 45 Degree?

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