(solved) Rotating object according to position on screen?

I would like to rotate an object between two values as it moves across the screen.

All the way on the left would be at -30 rotation on the y. All the way on the right would be 30.

Then smoothly blend between them as the object moves back and forth across the screen.


I already have the following script, which debugs it's location. I just can't figure out how to connect rotation values to position.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class PlayerAim : MonoBehaviour {
5.     public Transform target;
6.  
7.  
8.     void Update() {
9.         Vector3 screenPos = Camera.main.WorldToScreenPoint(target.position);
10.         Debug.Log("target is " + screenPos.x + " pixels from the left");
11.     }
12. }

Any help understanding is greatly appreciated!

 

Solved using ViewPortPoint (instead of ScreenPoint), and a lerp w/ euler angles. I guess that makes more sense because viewport is 0-1