using UnityEngine;

[RequireComponent(typeof(Camera))]
[ExecuteInEditMode]
[AddComponentMenu("Effects/Crepuscular Rays", -1)]
public class Crepuscular : MonoBehaviour
{
	public Material material;

	public GameObject light;

	private void Start()
	{
		light = GameObject.Find("Directional Light");
		if (!light)
		{
			base.enabled = false;
		}
	}

	private void OnRenderImage(RenderTexture source, RenderTexture destination)
	{
		if ((bool)light)
		{
			material.SetVector("_LightPos", GetComponent<Camera>().WorldToViewportPoint(base.transform.position - light.transform.forward));
			Graphics.Blit(source, destination, material);
		}
	}

	private void Update()
	{
	}
}