shader help! mobile movie transparent shader

Code (csharp):

1. Shader "C/C"
2. {
3.     Properties
4.     {
5.         _YTex ("Y (RGB)", 2D) = "white" {}
6.         _CrTex ("Cr (RGB)", 2D) = "white" {}
7.         _CbTex ("Cb (RGB)", 2D) = "white" {}
8.        
9.                
10.         //_TintColor ("TintColor", Vector) = (1.0, 1.0, 1.0, 1.0)
11.         //_CutAlphaColor ("CutColor", Vector) = (1.0, 1.0, 1.0, 1.0)
12.         //_TintColor ("TintColor", Color) = (1.0, 1.0, 1.0, 1.0)
13.         //_CutAlphaColor ("CutColor", Color) = (1.0, 1.0, 1.0, 1.0)
14.     //  _Range("Range",float)=0.1
15.    
16.        
17.     }
18.     SubShader
19.     {        Tags { "Queue"="Transparent" "RenderType"="Transparent" }
20.         //Offset -1, -1 // This line could be here, or anywhere else before "SubShader".\
21.         Cull Off
22.         Lighting Off
23.         ZWrite Off
24.         Blend SrcAlpha OneMinusSrcAlpha
25.         Pass
26.         {
27.             ColorMask RGB
28.             Lighting Off Fog { Color (0,0,0,0) }
29.  
30.             Program "vp" {
31. // Vertex combos: 1
32. //   opengl - ALU: 5 to 5
33. //   d3d9 - ALU: 5 to 5
34. SubProgram "opengl " {
35. Keywords { }
36. Bind "vertex" Vertex
37. Bind "texcoord" TexCoord0
38. Vector 5 [_YTex_ST]
39. "!!ARBvp1.0
40. # 5 ALU
41. PARAM c[6] = { program.local[0],
42.         state.matrix.mvp,
43.         program.local[5] };
44. MAD result.texcoord[0].xy, vertex.texcoord[0], c[5], c[5].zwzw;
45. DP4 result.position.w, vertex.position, c[4];
46. DP4 result.position.z, vertex.position, c[3];
47. DP4 result.position.y, vertex.position, c[2];
48. DP4 result.position.x, vertex.position, c[1];
49. END
50. # 5 instructions, 0 R-regs
51. "
52. }
53.  
54. SubProgram "d3d9 " {
55. Keywords { }
56. Bind "vertex" Vertex
57. Bind "texcoord" TexCoord0
58. Matrix 0 [glstate_matrix_mvp]
59. Vector 4 [_YTex_ST]
60. "vs_2_0
61. ; 5 ALU
62. dcl_position0 v0
63. dcl_texcoord0 v1
64. mad oT0.xy, v1, c4, c4.zwzw
65. dp4 oPos.w, v0, c3
66. dp4 oPos.z, v0, c2
67. dp4 oPos.y, v0, c1
68. dp4 oPos.x, v0, c0
69. "
70. }
71.  
72. SubProgram "gles " {
73. Keywords { }
74. "!!GLES
75. #define SHADER_API_GLES 1
76. #define tex2D texture2D
77.  
78.  
79. #ifdef VERTEX
80. #define gl_ModelViewProjectionMatrix glstate_matrix_mvp
81. uniform mat4 glstate_matrix_mvp;
82.  
83. varying highp vec2 xlv_TEXCOORD0;
84.  
85. uniform highp vec4 _YTex_ST;
86. attribute vec4 _glesMultiTexCoord0;
87. attribute vec4 _glesVertex;
88. void main ()
89. {
90.  gl_Position = (gl_ModelViewProjectionMatrix * _glesVertex);
91.  xlv_TEXCOORD0 = ((_glesMultiTexCoord0.xy * _YTex_ST.xy) + _YTex_ST.zw);
92. }
93.  
94.  
95.  
96. #endif
97. #ifdef FRAGMENT
98.  
99. varying highp vec2 xlv_TEXCOORD0;
100. uniform sampler2D _YTex;
101. uniform sampler2D _CrTex;
102. uniform sampler2D _CbTex;
103. //vec4 _TintColor;
104. //vec4 _CutAlphaColor;
105. //uniform vec _Range;
106. //uniform vec4 _TintColor;
107. //uniform vec4 _CutAlphaColor;
108.  
109. void main ()
110. {
111.  mediump vec4 rgbVec;
112.  mediump vec4 yuvVec;
113.  lowp vec4 tmpvar_1;
114.  tmpvar_1.w = 1.0;
115.  tmpvar_1.x = texture2D (_YTex, xlv_TEXCOORD0).x;
116.  tmpvar_1.y = texture2D (_CrTex, xlv_TEXCOORD0).y;
117.  tmpvar_1.z = texture2D (_CbTex, xlv_TEXCOORD0).z;
118.  yuvVec = tmpvar_1;
119.  rgbVec.x = dot (vec4(1.16438, 0.0, 1.59603, -0.870785), yuvVec);
120.  rgbVec.y = dot (vec4(1.16438, -0.391762, -0.812969, 0.529594), yuvVec);
121.  rgbVec.z = dot (vec4(1.16438, 2.01723, 0.0, -1.08139), yuvVec);
122.  rgbVec.w = 1.0;
123.  
124.  
125. //if(rgbVec.x == _CutAlphaColor.x rgbVec.y == _CutAlphaColor.y&rgbVec.z == _CutAlphaColor.z) rgbVec=_TintColor;
126.  
127.  //mediump vec4 abc = texture2D (_YTex, xlv_TEXCOORD0);
128.  //rgbVec.w = rgbVec.x*0.299 + rgbVec.y*0.587 + rgbVec.z*0.114;
129.  
130. // rgbVec.w =(1- rgbVec.x)*(1-rgbVec.y)*rgbVec.z;
131.  lowp vec4 tmpvar_2 = vec4(0.2466096, 0.8694299, 0.3780449, -0.2442727);
132.  lowp vec4 tmpvar_3 = vec4(0.9210526, 1, 1, 6.909088);
133.  rgbVec.w =((length (((yuvVec.xyz - tmpvar_2.xyz) * tmpvar_3.xyz))+ tmpvar_2.w) * tmpvar_3.w);
134.  gl_FragData[0] = rgbVec;
135. }
136.  
137.  
138.  
139. #endif"
140. }
141.  
142. SubProgram "glesdesktop " {
143. Keywords { }
144. "!!GLES
145. #define SHADER_API_GLES 1
146. #define tex2D texture2D
147.  
148.  
149. #ifdef VERTEX
150. #define gl_ModelViewProjectionMatrix glstate_matrix_mvp
151. uniform mat4 glstate_matrix_mvp;
152.  
153. varying highp vec2 xlv_TEXCOORD0;
154.  
155. uniform highp vec4 _YTex_ST;
156. attribute vec4 _glesMultiTexCoord0;
157. attribute vec4 _glesVertex;
158. void main ()
159. {
160.  gl_Position = (gl_ModelViewProjectionMatrix * _glesVertex);
161.  xlv_TEXCOORD0 = ((_glesMultiTexCoord0.xy * _YTex_ST.xy) + _YTex_ST.zw);
162. }
163.  
164.  
165.  
166. #endif
167. #ifdef FRAGMENT
168.  
169. varying highp vec2 xlv_TEXCOORD0;
170. uniform sampler2D _YTex;
171. uniform sampler2D _CrTex;
172. uniform sampler2D _CbTex;
173. //fixed4 _TintColor;
174. //fixed4 _CutAlphaColor;
175. //uniform vec _Range;
176. //uniform vec4 _TintColor;
177. //uniform vec4 _CutAlphaColor;
178. void main ()
179. {
180.  mediump vec4 rgbVec;
181.  mediump vec4 yuvVec;
182.  lowp vec4 tmpvar_1;
183.  tmpvar_1.w = 1.0;
184.  tmpvar_1.x = texture2D (_YTex, xlv_TEXCOORD0).x;
185.  tmpvar_1.y = texture2D (_CrTex, xlv_TEXCOORD0).y;
186.  tmpvar_1.z = texture2D (_CbTex, xlv_TEXCOORD0).z;
187.  yuvVec = tmpvar_1;
188.  rgbVec.x = dot (vec4(1.16438, 0.0, 1.59603, -0.870785), yuvVec);
189.  rgbVec.y = dot (vec4(1.16438, -0.391762, -0.812969, 0.529594), yuvVec);
190.  rgbVec.z = dot (vec4(1.16438, 2.01723, 0.0, -1.08139), yuvVec);
191.  rgbVec.w = 1.0;
192.  
193.  //mediump vec4 abc = texture2D (_YTex, xlv_TEXCOORD0);
194.  //rgbVec.w = rgbVec.x*0.299 + rgbVec.y*0.587 + rgbVec.z*0.114;
195.  lowp vec4 tmpvar_2 = vec4(0.2466096, 0.8694299, 0.3780449, -0.2442727);
196.  lowp vec4 tmpvar_3 = vec4(0.9210526, 1, 1, 6.909088);
197.  rgbVec.w =((length (((yuvVec.xyz - tmpvar_2.xyz) * tmpvar_3.xyz))+ tmpvar_2.w) * tmpvar_3.w);
198.  gl_FragData[0] = rgbVec;
199. }
200.  
201.  
202.  
203. #endif"
204. }
205.  
206. }
207. Program "fp" {
208. // Fragment combos: 1
209. //   opengl - ALU: 8 to 8, TEX: 3 to 3
210. //   d3d9 - ALU: 6 to 6, TEX: 3 to 3
211. SubProgram "opengl " {
212. Keywords { }
213. SetTexture 0 [_YTex] 2D
214. SetTexture 1 [_CrTex] 2D
215. SetTexture 2 [_CbTex] 2D
216. "!!ARBfp1.0
217. # 8 ALU, 3 TEX
218. PARAM c[5] = { { 1 },
219.         { 1.1640625, 2.0175781, 0, -1.0810547 },
220.         { 1.1640625, -0.3918457, -0.81298828, 0.52978516 },
221.         { 1.1640625, 0, 1.5957031, -0.87060547 },
222.         { 0.299, 0.587, 0.114, 0 }
223.          };
224. TEMP R0,R1;
225. TEX R0.x, fragment.texcoord[0], texture[0], 2D;
226. TEX R0.y, fragment.texcoord[0], texture[1], 2D;
227. TEX R0.z, fragment.texcoord[0], texture[2], 2D;
228. MOV R0.w, c[0].x;
229.  
230. DP4 R1.z, R0, c[1];
231. DP4 R1.y, R0, c[2];
232. DP4 R1.x, R0, c[3];
233. MOV R1.w, c[0].x;
234.  
235.  
236. MOV result.color.z, R1.z;
237. MOV result.color.y, R1.y;
238. MOV result.color.x, R1.x;
239. DP4 result.color.w, R1, c[4];
240. END
241. # 8 instructions, 1 R-regs
242. "
243. }
244.  
245. SubProgram "d3d9 " {
246. Keywords { }
247. SetTexture 0 [_YTex] 2D
248. SetTexture 1 [_CrTex] 2D
249. SetTexture 2 [_CbTex] 2D
250. "ps_2_0
251. ; 8 ALU, 3 TEX
252. dcl_2d s0
253. dcl_2d s1
254. dcl_2d s2
255. def c0, 1.00000000, 0, 0, 0
256. def c1, 1.16406250, 2.01757813, 0.00000000, -1.08105469
257. def c2, 1.16406250, -0.39184570, -0.81298828, 0.52978516
258. def c3, 1.16406250, 0.00000000, 1.59570313, -0.87060547
259. dcl t0.xy
260. texld r1, t0, s2
261. texld r0, t0, s0
262. mov_pp r1.x, r0.x
263. texld r0, t0, s1
264. mov_pp r1.y, r0.y
265. mov_pp r1.w, c0.x
266. dp4_pp r0.z, r1, c1
267. dp4_pp r0.y, r1, c2
268. dp4_pp r0.x, r1, c3
269. mov_pp r0.w, c0.x
270. mov_pp oC0, r0
271. "
272. }
273.  
274. SubProgram "gles " {
275. Keywords { }
276. "!!GLES"
277. }
278.  
279. SubProgram "glesdesktop " {
280. Keywords { }
281. "!!GLES"
282. }
283.  
284. }
285.  
286. #LINE 60
287.  
288.         }
289.  
290.    
291.  
292.        
293.        
294.     }
295. }
296.  

i have a shader like this. it will cut the blue color.
but the color can't be cleared thoroughly.
there are still some blue edges on the image.
could any one modify this shader for me? i want to add a value to control border，and set a color to cut
note:this shader is used on mobile