Follow object to mouse position

Unity Engine
1

Hello everyone
Its hard for me to explain what I want to reach
So I found this video where you can see what I want to do

I need to follow some object to mouse, but only in unity’s X and Z in 3D world
I tried google many times but only what I found is this

(Observe from 10 seconds)

    private Vector3 screenPoint;

    void Start () {
        screenPoint = Camera.main.WorldToScreenPoint(gameObject.transform.position);
    }

    void Update () {
        Vector3 curScreenPoint = new Vector3 (Input.mousePosition.x, Input.mousePosition.y, screenPoint.z);
        Vector3 curPosition = Camera.main.ScreenToWorldPoint (curScreenPoint);
        transform.position = curPosition;
    }
}

But this uses x y z coordiantes :frowning:

Thanks for help and sorry for my terrible English.

2

Try this instead.

  void Update () {
     //do a raycast from the camera through the screen
     //at the mouse cursor position into the 3d world
     RaycastHit hit;
     Vector3 mousePos = Input.mousePosition;
     if (!Physics.Raycast(Camera.main.ScreenPointToRay(mousePos), out hit))
       {
       //didn't hit anything. don't do anything
       return;
       }

     //must have hit something
     //set the transform position to the point in 3d space where
     //our raycast intersected something
     transform.position = hit.point;
     }
1 Like
3

With your current code, you just need to alter the y you get.

curPosition.y = transform.position.y;
transform.position = curPosition;

If you are looking for spell effects like that, you should research decals as they will be extremely helpful.

4

That is what I need, thanks, it works perfectly

5

Thanks for your attention, I will search decals as well.