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Question by unityBerserker · Sep 13, 2017 at 07:27 PM · collisioncollision detectioncollision.contacts

What is purpose of ContactPoint2D.tangentImpulse and ContactPoint2D.normalImpulse?

Hi, I try to understand how collisions work.

I'm using method Physics2D.GetContacts(Collider2D collider, ContactPoint2D[] contacts);

In ContactPoint2D are two variables:

https://docs.unity3d.com/2017.1/Documentation/ScriptReference/ContactPoint2D-normalImpulse.html https://docs.unity3d.com/2017.1/Documentation/ScriptReference/ContactPoint2D-tangentImpulse.html

What I know:

normalImpulse is based on momentum- with it we can get half value of velocity of colliders.

tangentImpulse - I know it's effect of friction.

I think it's connected with collision's engines.

Somebody know something about this variables?

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avatar image hexagonius · Sep 14, 2017 at 03:37 AM 0
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They're both explained in the links. What's it you want to know more about them?

avatar image unityBerserker hexagonius · Sep 14, 2017 at 09:45 AM 0
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I understand code when I can visualize it or do function be myself.

What's it you want to know more about them?

Everything!

avatar image hexagonius unityBerserker · Sep 14, 2017 at 09:48 AM 0
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I think then you need to buy a license for the unity source or look for a decompile somewhere. Then you can find out everything.

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