1 using System;
2 using UnityEngine;
3
4 namespace UnityStandardAssets.ImageEffects
5 {
6 [ExecuteInEditMode]
7 [RequireComponent (typeof(Camera))]
8 public class PostEffectsBase : MonoBehaviour
9 {
10 protected bool supportHDRTextures = true;
11 protected bool supportDX11 = false;
12 protected bool isSupported = true;
13
14 protected Material CheckShaderAndCreateMaterial ( Shader s, Material m2Create)
15 {
16 if (!s)
17 {
18 Debug.Log("Missing shader in " + ToString ());
19 enabled = false;
20 return null;
21 }
22
23 if (s.isSupported && m2Create && m2Create.shader == s)
24 return m2Create;
25
26 if (!s.isSupported)
27 {
28 NotSupported ();
29 Debug.Log("The shader " + s.ToString() + " on effect "+ToString()+" is not supported on this platform!");
30 return null;
31 }
32 else
33 {
34 m2Create = new Material (s);
35 m2Create.hideFlags = HideFlags.DontSave;
36 if (m2Create)
37 return m2Create;
38 else return null;
39 }
40 }
41
42
43 protected Material CreateMaterial (Shader s, Material m2Create)
44 {
45 if (!s)
46 {
47 Debug.Log ("Missing shader in " + ToString ());
48 return null;
49 }
50
51 if (m2Create && (m2Create.shader == s) && (s.isSupported))
52 return m2Create;
53
54 if (!s.isSupported)
55 {
56 return null;
57 }
58 else
59 {
60 m2Create = new Material (s);
61 m2Create.hideFlags = HideFlags.DontSave;
62 if (m2Create)
63 return m2Create;
64 else return null;
65 }
66 }
67
68 void OnEnable ()
69 {
70 isSupported = true;
71 }
72
73 protected bool CheckSupport ()
74 {
75 return CheckSupport (false);
76 }
77
78
79 public virtual bool CheckResources ()
80 {
81 Debug.LogWarning ("CheckResources () for " + ToString() + " should be overwritten.");
82 return isSupported;
83 }
84
85
86 protected void Start ()
87 {
88 CheckResources ();
89 }
90
91 protected bool CheckSupport (bool needDepth)
92 {
93 isSupported = true;
94 supportHDRTextures = SystemInfo.SupportsRenderTextureFormat(RenderTextureFormat.ARGBHalf);
95 supportDX11 = SystemInfo.graphicsShaderLevel >= 50 && SystemInfo.supportsComputeShaders;
96
97 if (!SystemInfo.supportsImageEffects || !SystemInfo.supportsRenderTextures)
98 {
99 NotSupported ();
100 return false;
101 }
102
103 if (needDepth && !SystemInfo.SupportsRenderTextureFormat (RenderTextureFormat.Depth))
104 {
105 NotSupported ();
106 return false;
107 }
108
109 if (needDepth)
110 GetComponent<Camera>().depthTextureMode |= DepthTextureMode.Depth;
111
112 return true;
113 }
114
115 protected bool CheckSupport (bool needDepth, bool needHdr)
116 {
117 if (!CheckSupport(needDepth))
118 return false;
119
120 if (needHdr && !supportHDRTextures)
121 {
122 NotSupported ();
123 return false;
124 }
125
126 return true;
127 }
128
129
130 public bool Dx11Support ()
131 {
132 return supportDX11;
133 }
134
135
136 protected void ReportAutoDisable ()
137 {
138 Debug.LogWarning ("The image effect " + ToString() + " has been disabled as it's not supported on the current platform.");
139 }
140
141 // deprecated but needed for old effects to survive upgrading
142 bool CheckShader (Shader s)
143 {
144 Debug.Log("The shader " + s.ToString () + " on effect "+ ToString () + " is not part of the Unity 3.2+ effects suite anymore. For best performance and quality, please ensure you are using the latest Standard Assets Image Effects (Pro only) package.");
145 if (!s.isSupported)
146 {
147 NotSupported ();
148 return false;
149 }
150 else
151 {
152 return false;
153 }
154 }
155
156
157 protected void NotSupported ()
158 {
159 enabled = false;
160 isSupported = false;
161 return;
162 }
163
164
165 protected void DrawBorder (RenderTexture dest, Material material)
166 {
167 float x1;
168 float x2;
169 float y1;
170 float y2;
171
172 RenderTexture.active = dest;
173 bool invertY = true; // source.texelSize.y < 0.0ff;
174 // Set up the simple Matrix
175 GL.PushMatrix();
176 GL.LoadOrtho();
177
178 for (int i = 0; i < material.passCount; i++)
179 {
180 material.SetPass(i);
181
182 float y1_; float y2_;
183 if (invertY)
184 {
185 y1_ = 1.0f; y2_ = 0.0f;
186 }
187 else
188 {
189 y1_ = 0.0f; y2_ = 1.0f;
190 }
191
192 // left
193 x1 = 0.0f;
194 x2 = 0.0f + 1.0f/(dest.width*1.0f);
195 y1 = 0.0f;
196 y2 = 1.0f;
197 GL.Begin(GL.QUADS);
198
199 GL.TexCoord2(0.0f, y1_); GL.Vertex3(x1, y1, 0.1f);
200 GL.TexCoord2(1.0f, y1_); GL.Vertex3(x2, y1, 0.1f);
201 GL.TexCoord2(1.0f, y2_); GL.Vertex3(x2, y2, 0.1f);
202 GL.TexCoord2(0.0f, y2_); GL.Vertex3(x1, y2, 0.1f);
203
204 // right
205 x1 = 1.0f - 1.0f/(dest.width*1.0f);
206 x2 = 1.0f;
207 y1 = 0.0f;
208 y2 = 1.0f;
209
210 GL.TexCoord2(0.0f, y1_); GL.Vertex3(x1, y1, 0.1f);
211 GL.TexCoord2(1.0f, y1_); GL.Vertex3(x2, y1, 0.1f);
212 GL.TexCoord2(1.0f, y2_); GL.Vertex3(x2, y2, 0.1f);
213 GL.TexCoord2(0.0f, y2_); GL.Vertex3(x1, y2, 0.1f);
214
215 // top
216 x1 = 0.0f;
217 x2 = 1.0f;
218 y1 = 0.0f;
219 y2 = 0.0f + 1.0f/(dest.height*1.0f);
220
221 GL.TexCoord2(0.0f, y1_); GL.Vertex3(x1, y1, 0.1f);
222 GL.TexCoord2(1.0f, y1_); GL.Vertex3(x2, y1, 0.1f);
223 GL.TexCoord2(1.0f, y2_); GL.Vertex3(x2, y2, 0.1f);
224 GL.TexCoord2(0.0f, y2_); GL.Vertex3(x1, y2, 0.1f);
225
226 // bottom
227 x1 = 0.0f;
228 x2 = 1.0f;
229 y1 = 1.0f - 1.0f/(dest.height*1.0f);
230 y2 = 1.0f;
231
232 GL.TexCoord2(0.0f, y1_); GL.Vertex3(x1, y1, 0.1f);
233 GL.TexCoord2(1.0f, y1_); GL.Vertex3(x2, y1, 0.1f);
234 GL.TexCoord2(1.0f, y2_); GL.Vertex3(x2, y2, 0.1f);
235 GL.TexCoord2(0.0f, y2_); GL.Vertex3(x1, y2, 0.1f);
236
237 GL.End();
238 }
239
240 GL.PopMatrix();
241 }
242 }
243 }
