ImageEffect_BrokenScreen

一个碎屏效果的Unity屏幕后期特效，类似狂野飙车8的效果

using UnityEngine;
using System.Collections;
using System;

[ExecuteInEditMode]
[AddComponentMenu （“PengLu/ImageEffect/BrokenScreen“）]
public class ImageEffect_BrokenScreen : MonoBehaviour {
	#region Variables
	public Shader BrokenScreenShader = null;
	private Material BrokenScreenMaterial = null;

	public Texture2D BumpMap;
	// private RenderTextureFormat rtFormat = RenderTextureFormat.Default;

	[Range（0.0f 1.0f）]
	public float satCount = 0.17f;



	#endregion
	

void Start （） {
		FindShaders （）;
		CheckSupport （）;
		CreateMaterials （）;
	}

	void FindShaders （） {
		if （!BrokenScreenShader） {
			BrokenScreenShader = Shader.Find（“PengLu/ImageEffect/Unlit/BrokenScreen“）;
		}
	}

	void CreateMaterials（） {
		if（!BrokenScreenMaterial）{
			BrokenScreenMaterial = new Material（BrokenScreenShader）;
			BrokenScreenMaterial.hideFlags = HideFlags.HideAndDontSave;	
		}
	}

	bool Supported（）{
		return （SystemInfo.supportsImageEffects && SystemInfo.supportsRenderTextures && BrokenScreenShader.isSupported）;
	}


	bool CheckSupport（） {
		if（!Supported（）） {
			enabled = false;
			return false;
		}
		return true;
	}



	void OnRenderImage （RenderTexture sourceTexture RenderTexture destTexture）
	{	
		#if UNITY_EDITOR
			FindShaders （）;
			CheckSupport （）;
			CreateMaterials （）;	
		#endif

		float scaleX  scaleY ;

		if（sourceTexture.width > sourceTexture.height）
		{	
			scaleX = 1.0f;
			scaleY = （float） sourceTexture.height / （float） sourceTexture.width;			
		}		
		else
		{
			scaleX = （float） sourceTexture.width / （float） sourceTexture.height;
			scaleY = 1.0f;	
		}
		

		print（“scaleX:-------“ + scaleX + “ 	“ + “scaleY:-------“ + scaleY）;

		if（BumpMap != null）{
			
	        BrokenScreenMaterial.SetFloat （“_satCount“ satCount）;
	        BrokenScreenMaterial.SetFloat （“_scaleX“ scaleX）;
	        BrokenScreenMaterial.SetFloat （“_scaleY“ scaleY）;
	 		BrokenScreenMaterial.SetTexture （“_BumpTex“ BumpMap）;
	   		Graphics.Blit （sourceTexture destTexture BrokenScreenMaterial0）;

		}
		else {

			Graphics.Blit （sourceTexture destTexture）;

		}



		
		
	}
	
	 public void OnDisable （） {
        if （BrokenScreenMaterial）
            DestroyImmediate （BrokenScreenMaterial）;
            // BrokenScreenMaterial = null;
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       2251  2015-09-29 10:58  ImageEffect_BrokenScreen.cs

     文件       1184  2015-09-29 17:53  ImageEffect_BrokenScreen.shader

----------- ---------  ---------- -----  ----

                 3435                    2