Question Raycasting colliders without rigidbodies

Hello,

I've got a weird issue in a new project: I used to raycast objects without rigibodies from my First-person view rigidbody character controller:

Code (CSharp):

1. Physics.Raycast(new Ray(camerRayOrigin, transform.forward), out RaycastHit hit, rayDistance, interactLayers,QueryTriggerInteraction.Collide)

However, in my new project this wouldn't work until I add a rigidbody to the target collider.

has anyone have an idea about what could be the issue?

2/ I thought about adding a KINEMATIC rigidbody to each target collider (they are usually static colliders). But, I wonder what is the performance impact of such solution? I'm targeting low end devices like mobile devices.

Kind regards

 

Raycasts should have no problem hitting colliders with or without a Rigidbody. The Rigidbody isn't really relevant. Maybe share a little more context about what you're doing here and some more code? For example how is your layermask set up? What layer(s) are the collider(s) you are trying to hit on? Etc..

 

As Praetor says, Raycasting doesn't care about Rigidbodies.

Raycasting, colliders, planes, Plane, etc:

https://forum.unity.com/threads/hel...s-are-hitting-an-object.1058393/#post-6840296

https://forum.unity.com/threads/kee...within-the-view-frustrum.936209/#post-6117173

And there is also EventSystem.RaycastAll for raycasting in the UI / EventSystems context.

Raycasting in 2D:

https://forum.unity.com/threads/ran...ear-polygon-collider-2d.1060082/#post-6851372

 

thanks for the confirmation, I found the issue, it all comes down to using hit.transform.gameObject instead of hit.collider.gameObject in a context where the target collider is a child of a root object that has a kinematic rigidbody