OnRenderImage is called after all rendering is complete to render image.

Postprocessing effects (Unity Pro only).

It allows you to modify final image by processing it with shader based filters. The incoming image is source render texture. The result should end up in destination render texture. When there are multiple image filters attached to the camera, they process image sequentially, by passing first filter's destination as the source to the next filter.

This message is sent to all scripts attached to the camera.

See Also: The image effects in Unity Pro.

	var mat: Material;

	function OnRenderImage(src: RenderTexture, dest: RenderTexture)
   {
		// Copy the source Render Texture to the destination,
		// applying the material along the way.
		Graphics.Blit(src, dest, mat);
	}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    public Material mat;
    void OnRenderImage(RenderTexture src, RenderTexture dest) {
        Graphics.Blit(src, dest, mat);
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	public mat as Material

	def OnRenderImage(src as RenderTexture, dest as RenderTexture) as void:
		Graphics.Blit(src, dest, mat)