Billboarding Sprite issue.

Questions & Answers
1

Here’s my generic code:

using UnityEngine; 
public class Billboard : MonoBehaviour {
     void Update() { 
        transform.LookAt(Camera.main.transform.position, -Vector3.up); 
     } 
}

But there’s a problem with it. I created a small plane, and added just a leaf texture to it for testing, like this: Pic1

But when i run it, it faces incorrectly? Like this:
Pic2

Notice the camera and the plane are like this?
Camera is looking at it instead of | vertical, its – Horizontal to it.

How do i fix this? I tried making the vector3.up positive, and setting it to down… no change.

2

It’s because LookAt points the blue axis at the target (unfortunately the plane is horizontal when that happens). Try this:

 	transform.LookAt(transform.position + Camera.main.transform.rotation * Vector3.up,Camera.main.transform.rotation * Vector3.back);