1 using System;
2 using
UnityEngine;
3
4 namespace
UnityStandardAssets.ImageEffects
5 {
6     
[RequireComponent(typeof (Camera))]
7     
[AddComponentMenu("")]
8     
public class ImageEffectBase : MonoBehaviour
9     {

10         ///
Provides a shader property that is set in the inspector
11         ///
and a material instantiated from the shader
12         
public Shader shader;
13
14         
private Material m_Material;
15
16
17         
protected virtual void Start()
18         {
19             
// Disable if we don't support image effects
20             
if (!SystemInfo.supportsImageEffects)
21             {
22                 enabled =
false;
23                 
return;
24             }
25
26             
// Disable the image effect if the shader can't
27             
// run on the users graphics card
28             
if (!shader || !shader.isSupported)
29                 enabled =
false;
30         }
31
32
33         
protected Material material
34         {
35             
get
36             {
37                 
if (m_Material == null)
38                 {
39                     m_Material =
new Material(shader);
40                     m_Material.hideFlags = HideFlags.HideAndDontSave;
41                 }
42                 
return m_Material;
43             }
44         }
45
46
47         
protected virtual void OnDisable()
48         {
49             
if (m_Material)
50             {
51                 DestroyImmediate(m_Material);
52             }
53         }
54     }
55 }


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