How to detect collider tag using raycast?

Can raycast detect collider tag? I want to make a script that allow my character to add fog if he hit a plane. Like if he goes underwater the camera will add some fog and distort something like that. But my problem is I have the fog script working but I don't know how to trigger or make it enable when he collides on the plane (water).

Can anybody give me a example of a raycast hit that detect a collider tag.

 

Why not just use OnTriggerEnter/Exit to turn the fog on and off?

Or even easier, just turn it on if your player is below a certain y-level, unless you're working with different water instances on different heights.

If you're truly insisting on using raycasts, it's not hard - just grab the RaycastHit's collider.tag:

Code (CSharp):

1. if(Physics.Raycast(origin, direction, out hit) {
2.     string tag = hit.collider.tag;
3. }

 

yeah I will use this script only for the lake above the mountains that has a higher y level than my other water plane. I will try this and give you a feedback after. I will also attach this on the main camera.

this is the screenshot. it didn't work.