[Unity]Billboard

Billboard.cs

using UnityEngine;
using System.Collections;

namespace TSKT
{
    [DisallowMultipleComponent]
    [ExecuteInEditMode]
    [RequireComponent(typeof(Renderer))]
    public class Billboard : MonoBehaviour
    {
        // Rendererが有効でなければ呼ばれないことに注意
        void OnWillRenderObject()
        {
            transform.rotation = Camera.current.transform.rotation;
        }
    }
}