1 using System;
2 using UnityEngine;
3
4 namespace UnityStandardAssets.ImageEffects
5 {
6 public enum AAMode
7 {
8 FXAA2 = 0,
9 FXAA3Console = 1,
10 FXAA1PresetA = 2,
11 FXAA1PresetB = 3,
12 NFAA = 4,
13 SSAA = 5,
14 DLAA = 6,
15 }
16
17 [ExecuteInEditMode]
18 [RequireComponent(typeof (Camera))]
19 [AddComponentMenu("Image Effects/Other/Antialiasing")]
20 public class Antialiasing : PostEffectsBase
21 {
22 public AAMode mode = AAMode.FXAA3Console;
23
24 public bool showGeneratedNormals = false;
25 public float offsetScale = 0.2f;
26 public float blurRadius = 18.0f;
27
28 public float edgeThresholdMin = 0.05f;
29 public float edgeThreshold = 0.2f;
30 public float edgeSharpness = 4.0f;
31
32 public bool dlaaSharp = false;
33
34 public Shader ssaaShader;
35 private Material ssaa;
36 public Shader dlaaShader;
37 private Material dlaa;
38 public Shader nfaaShader;
39 private Material nfaa;
40 public Shader shaderFXAAPreset2;
41 private Material materialFXAAPreset2;
42 public Shader shaderFXAAPreset3;
43 private Material materialFXAAPreset3;
44 public Shader shaderFXAAII;
45 private Material materialFXAAII;
46 public Shader shaderFXAAIII;
47 private Material materialFXAAIII;
48
49
50 public Material CurrentAAMaterial()
51 {
52 Material returnValue = null;
53
54 switch (mode)
55 {
56 case AAMode.FXAA3Console:
57 returnValue = materialFXAAIII;
58 break;
59 case AAMode.FXAA2:
60 returnValue = materialFXAAII;
61 break;
62 case AAMode.FXAA1PresetA:
63 returnValue = materialFXAAPreset2;
64 break;
65 case AAMode.FXAA1PresetB:
66 returnValue = materialFXAAPreset3;
67 break;
68 case AAMode.NFAA:
69 returnValue = nfaa;
70 break;
71 case AAMode.SSAA:
72 returnValue = ssaa;
73 break;
74 case AAMode.DLAA:
75 returnValue = dlaa;
76 break;
77 default:
78 returnValue = null;
79 break;
80 }
81
82 return returnValue;
83 }
84
85
86 public override bool CheckResources()
87 {
88 CheckSupport(false);
89
90 materialFXAAPreset2 = CreateMaterial(shaderFXAAPreset2, materialFXAAPreset2);
91 materialFXAAPreset3 = CreateMaterial(shaderFXAAPreset3, materialFXAAPreset3);
92 materialFXAAII = CreateMaterial(shaderFXAAII, materialFXAAII);
93 materialFXAAIII = CreateMaterial(shaderFXAAIII, materialFXAAIII);
94 nfaa = CreateMaterial(nfaaShader, nfaa);
95 ssaa = CreateMaterial(ssaaShader, ssaa);
96 dlaa = CreateMaterial(dlaaShader, dlaa);
97
98 if (!ssaaShader.isSupported)
99 {
100 NotSupported();
101 ReportAutoDisable();
102 }
103
104 return isSupported;
105 }
106
107
108 public void OnRenderImage(RenderTexture source, RenderTexture destination)
109 {
110 if (CheckResources() == false)
111 {
112 Graphics.Blit(source, destination);
113 return;
114 }
115
116 // ----------------------------------------------------------------
117 // FXAA antialiasing modes
118
119 if (mode == AAMode.FXAA3Console && (materialFXAAIII != null))
120 {
121 materialFXAAIII.SetFloat("_EdgeThresholdMin", edgeThresholdMin);
122 materialFXAAIII.SetFloat("_EdgeThreshold", edgeThreshold);
123 materialFXAAIII.SetFloat("_EdgeSharpness", edgeSharpness);
124
125 Graphics.Blit(source, destination, materialFXAAIII);
126 }
127 else if (mode == AAMode.FXAA1PresetB && (materialFXAAPreset3 != null))
128 {
129 Graphics.Blit(source, destination, materialFXAAPreset3);
130 }
131 else if (mode == AAMode.FXAA1PresetA && materialFXAAPreset2 != null)
132 {
133 source.anisoLevel = 4;
134 Graphics.Blit(source, destination, materialFXAAPreset2);
135 source.anisoLevel = 0;
136 }
137 else if (mode == AAMode.FXAA2 && materialFXAAII != null)
138 {
139 Graphics.Blit(source, destination, materialFXAAII);
140 }
141 else if (mode == AAMode.SSAA && ssaa != null)
142 {
143 // ----------------------------------------------------------------
144 // SSAA antialiasing
145 Graphics.Blit(source, destination, ssaa);
146 }
147 else if (mode == AAMode.DLAA && dlaa != null)
148 {
149 // ----------------------------------------------------------------
150 // DLAA antialiasing
151
152 source.anisoLevel = 0;
153 RenderTexture interim = RenderTexture.GetTemporary(source.width, source.height);
154 Graphics.Blit(source, interim, dlaa, 0);
155 Graphics.Blit(interim, destination, dlaa, dlaaSharp ? 2 : 1);
156 RenderTexture.ReleaseTemporary(interim);
157 }
158 else if (mode == AAMode.NFAA && nfaa != null)
159 {
160 // ----------------------------------------------------------------
161 // nfaa antialiasing
162
163 source.anisoLevel = 0;
164
165 nfaa.SetFloat("_OffsetScale", offsetScale);
166 nfaa.SetFloat("_BlurRadius", blurRadius);
167
168 Graphics.Blit(source, destination, nfaa, showGeneratedNormals ? 1 : 0);
169 }
170 else
171 {
172 // none of the AA is supported, fallback to a simple blit
173 Graphics.Blit(source, destination);
174 }
175 }
176 }
177 }
