しんぷる

AfterEffects.cs

using UnityEngine;
using System.Collections;

public class AfterEffect : MonoBehaviour {

	public Material m,
	public Material[] targetMats;
	public string propName = "_Tex";
	RenderTexture rt;

	void OnRenderImage(RenderTexture src, RenderTexture dst){
		if (rt == null) {
			rt = new RenderTexture(src.width, src.height, 0, src.format);
			foreach(Material targetMat in targetMats)
				targetMat.SetTexture(propName, rt);
		}
		Graphics.Blit(src, rt, m);
		Graphics.Blit (rt, dst);
	}
}