Physics2D.Raycast doesn't ignore self collider

I just tested it with 3D Physics and the Raycast ignores the collider on the object the raycast is casted. But when using Physics2D the ray hits the collider of the object where it is cast....

Is this a bug? Or is there any workaround to this?

 

If you are using a 2D Collider, only a Physics2D raycast will hit it. http://docs.unity3d.com/ScriptReference/Physics2D.Raycast.html
If you are using a 3D Collider, only a Physics raycast will hit it. http://docs.unity3d.com/ScriptReference/Physics.Raycast.html

Check if you are using it correctly..

 

Yes I am using it correctly, I tested it with a simple object with the layer "Obstacle" with a Box Collider 2D, I casted a Physics2D.Raycast with a layermask of LayerMask.GetMask("Obstacle"). And it hits himself. Can someone please try this and confirm if this is just a problem with me?

 

I'm at work right now, so i can't test it for you.
But if you post some code and screenshots i can try help you more


Edit:

I just read your first problem in the Unity Answers. http://answers.unity3d.com/questions/756380/raycast-ignore-itself.html
And that clear things up, i dont have an answer for you now, i will think about it and come back later hehehe.

 

What about disabling the collider of the turret when the ray starts and when it hits something you enable again? Kind of hackish but could work.

 

Probably, a bug. A big one. Request to Unity: Please Fix this

 

Not a bug, and this thread is from 2014.

http://answers.unity.com/answers/869966/view.html

 

I really didn't know that.
Thank you so much.

 

For anyone reading this in 2021, the setting appears to have been renamed. I found it under Edit > Project Settings > Physics 2D > Queries Start In Colliders.

 

This should be noted in the docs for raycasts https://docs.unity3d.com/ScriptReference/Physics2D.Raycast.html