各滤镜处理效果记录，
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各滤镜处理效果记录，
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-- 獲得數據內容[VSH]
function M:getDefaultVSH()return
" \n\
attribute vec4 a_position; \n\
attribute vec2 a_texCoord; \n\
attribute vec4 a_color; \n\\n\
#ifdef GL_ES \n\
varying lowp vec4 v_fragmentColor; \n\
varying mediump vec2 v_texCoord; \n\
#else \n\
varying vec4 v_fragmentColor; \n\
varying vec2 v_texCoord; \n\
#endif \n\\n\
void main() \n\
{ \n\
gl_Position = CC_MVPMatrix * a_position; \n\
v_fragmentColor = a_color; \n\
v_texCoord = a_texCoord; \n\
} \n\
"
end-- 獲得數據內容[FSH][默認]
function M:getDefaultFSH()return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
uniform vec2 u_TextureCoordOffset[25]; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main(void) \n\
{ \n\
gl_FragColor = texture2D(u_Texture, v_texCoord.st); \n\
} \n\
"
end-- 獲得數據內容[FSH][模糊]
function M:getBlurFSH()return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
uniform vec2 u_TextureCoordOffset[25]; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main(void) \n\
{ \n\vec4 sample[25]; \n\\n\for (int i = 0; i < 25; i++) \n\{ \n\sample[i] = texture2D(u_Texture, \n\v_texCoord.st + u_TextureCoordOffset[i]); \n\} \n\//-------------------------------------------------------- \n\// 1 3 1 \n\// 3 1 3 / 11 \n\// 1 3 1 \n\\n\//gl_FragColor = (sample[0] + (3.0*sample[1]) + sample[2] + \n\// (3.0*sample[3]) + sample[4] + (3.0*sample[5]) + \n\// sample[6] + (3.0*sample[7]) + sample[8]) / 11.0; \n\//-------------------------------------------------------- \n\// Gaussian weighting: \n\// 1 4 7 4 1 \n\// 4 16 26 16 4 \n\// 7 26 41 26 7 / 273 (i.e. divide by total of weightings) \n\// 4 16 26 16 4 \n\// 1 4 7 4 1 \n\\n\gl_FragColor = ( \n\(1.0 * (sample[0] + sample[4] + sample[20] + sample[24])) + \n\(4.0 * (sample[1] + sample[3] + sample[5] + sample[9] + \n\sample[15] + sample[19] + sample[21] + sample[23])) + \n\(7.0 * (sample[2] + sample[10] + sample[14] + sample[22])) + \n\(16.0 * (sample[6] + sample[8] + sample[16] + sample[18])) + \n\(26.0 * (sample[7] + sample[11] + sample[13] + sample[17])) + \n\(41.0 * sample[12]) \n\) / 273.0; \n\
}"
end-- 獲得數據內容[FSH][磨砂]
function M:getSharpenFSH()return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
uniform vec2 u_TextureCoordOffset[25]; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main(void) \n\
{ \n\vec4 sample[25]; \n\\n\for (int i = 0; i < 25; i++) \n\{ \n\sample[i] = texture2D(u_Texture, \n\v_texCoord.st + u_TextureCoordOffset[i]); \n\} \n\//-------------------------------------------------------- \n\// -1 -1 -1 \n\// -1 9 -1 \n\// -1 -1 -1 \n\\n\//gl_FragColor = (sample[4] * 9.0) - \n\// (sample[0] + sample[1] + sample[2] + \n\// sample[3] + sample[5] + \n\// sample[6] + sample[7] + sample[8]); \n\//-------------------------------------------------------- \n\// Sharpen weighting: \n\// 0 -1 -1 -1 0 \n\// -1 2 -4 2 -1 \n\// -1 -4 13 -4 -1 \n\// -1 2 -4 2 -1 \n\// 0 -1 -1 -1 0 \n\\n\//gl_FragColor = ( \n\//(-1.0 * ( sample[1] + sample[2] + sample[3] + sample[5] + \n\//sample[9] + sample[10] + sample[14] + sample[15] + \n\//sample[19] + sample[21] + sample[22] + sample[23]) ) + \n\//(2.0 * (sample[6] + sample[8] + sample[16] + sample[18])) + \n\//(-4.0 *(sample[7] + sample[11] + sample[13] + sample[17]))+ \n\//( 13.0 * sample[12] ) \n\//); \n\\n\// 1 1 1 1 1 \n\// 1 1 1 1 1 \n\// 1 1 -14 1 1 \n\// 1 1 1 1 1 \n\// 1 1 1 1 1 \n\\n\gl_FragColor = -14.0 * sample[12]; \n\\n\for (int i = 0; i < 25; i++) \n\{ \n\if (i != 12) \n\gl_FragColor += sample[i]; \n\} \n\gl_FragColor /= 14.0; \n\
}"
end-- 獲得數據內容[FSH][膨脹]
function M:getDilateFSH()return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
uniform vec2 u_TextureCoordOffset[25]; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main(void) \n\
{ \n\
vec4 sample[25]; \n\
vec4 maxValue = vec4(0.0); \n\\n\
for (int i = 0; i < 25; i++) \n\
{ \n\// Sample a grid around and including our texel \n\sample[i] = texture2D(u_Texture, v_texCoord.st + u_TextureCoordOffset[i]); \n\// Keep the maximum value \n\maxValue = max(sample[i], maxValue); \n\
} \n\\n\
gl_FragColor = maxValue; \n\
}"
end-- 獲得數據內容[FSH][侵蝕]
function M:getErodeFSH()return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
uniform vec2 u_TextureCoordOffset[25]; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main(void) \n\
{ \n\
vec4 sample[25]; \n\
vec4 minValue = vec4(1.0); \n\\n\
for (int i = 0; i < 25; i++) \n\
{ \n\// Sample a grid around and including our texel \n\sample[i] = texture2D(u_Texture, v_texCoord.st + u_TextureCoordOffset[i]); \n\// Keep the minimum value \n\minValue = min(sample[i], minValue); \n\
} \n\\n\
gl_FragColor = minValue; \n\
}"
end-- 獲得數據內容[FSH][Laplacian描邊]
function M:getLaplacianEdgeDetectionFSH()return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
uniform vec2 u_TextureCoordOffset[25]; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main(void) \n\
{ \n\
vec4 sample[25]; \n\\n\
for (int i = 0; i < 25; i++) \n\
{ \n\// Sample a grid around and including our texel \n\sample[i] = texture2D(u_Texture, v_texCoord.st + u_TextureCoordOffset[i]); \n\
} \n\\n\
// Laplacian weighting: \n\
// -1 -1 -1 -1 -1 \n\
// -1 -1 -1 -1 -1 \n\
// -1 -1 24 -1 -1 \n\
// -1 -1 -1 -1 -1 \n\
// -1 -1 -1 -1 -1 \n\\n\
gl_FragColor = 24.0 * sample[12]; \n\\n\
for (int i = 0; i < 25; i++) \n\
{ \n\if (i != 12) \n\gl_FragColor -= sample[i]; \n\
} \n\
}"
end-- 獲得數據內容[FSH][Sobel邊緣檢測]
function M:getSobelEdgeDetectionFSH()return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
uniform vec2 u_TextureCoordOffset[25]; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main(void) \n\
{ \n\vec4 sample[25]; \n\\n\for (int i = 0; i < 25; i++) \n\{ \n\sample[i] = texture2D(u_Texture, \n\v_texCoord.st + u_TextureCoordOffset[i]); \n\} \n\// Sobel x: \n\// 1 2 0 -2 -1 \n\// 4 8 0 -8 -4 \n\// 6 12 0 -12-6 / 12 \n\// 4 8 0 -8 -4 \n\// 1 2 0 -2 -1 \n\// Sobel y: \n\// -1 -4 -6 -4 -1 \n\// -2 -8 -12-8 -2 \n\// 0 0 0 0 0 / 12 \n\// 2 8 12 8 2 \n\// 1 4 6 4 1 \n\\n\vec4 vertEdge = sample[0] + 4.0 * sample[1] + \n\6.0 * sample[2] + 4.0 * sample[3] + sample[4] + \n\2.0 * sample[5] + 8.0 * sample[6] + 12.0 * sample[7] + \n\8.0 * sample[8] + 2.0 * sample[9] - 2.0 * sample[15] - \n\8.0 * sample[16] - 12.0 * sample[17] - 8.0 * sample[18] - \n\2.0 * sample[19] - sample[20] - 4.0 * sample[21] - \n\6.0 * sample[22] - 4.0 * sample[23] - sample[24]; \n\\n\vec4 horizEdge = - sample[0] - 2.0 * sample[1] + \n\2.0 * sample[3] + sample[4] - 4.0 * sample[5] - \n\8.0 * sample[6] + 8.0 * sample[8] + 4.0 * sample[9] - \n\6.0 * sample[10] - 12.0 * sample[11] + 12.0 * sample[13] + \n\6.0 * sample[14] - 4.0 * sample[15] - 8.0 * sample[16] + \n\8.0 * sample[18] + 4.0 * sample[19] - sample[20] - \n\2.0 * sample[21] + 2.0 * sample[23] + sample[24]; \n\\n\//gl_FragColor.rgb = sqrt(horizEdge.rgb) + sqrt(vertEdge.rgb); \n\gl_FragColor.rgb = sqrt((horizEdge.rgb * horizEdge.rgb) + \n\(vertEdge.rgb * vertEdge.rgb)) / 12.0f; \n\gl_FragColor.a = 1.0; \n\
}"
end-- 獲得數據內容[FSH][Prewitt邊緣檢測]
function M:getPrewittEdgeDetectionFSH()return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
uniform vec2 u_TextureCoordOffset[25]; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main(void) \n\
{ \n\vec4 sample[25]; \n\\n\for (int i = 0; i < 25; i++) \n\{ \n\sample[i] = texture2D(u_Texture, \n\v_texCoord.st + u_TextureCoordOffset[i]); \n\} \n\// Prewitt x: \n\// -5 -4 0 4 5 \n\// -8-10 0 10 8 \n\//-10-20 0 20 10 / 20 \n\// -8-10 0 10 8 \n\// -5 -4 0 4 5 \n\// Prewitt y: \n\// 5 8 10 8 5 \n\// 4 10 20 10 4 \n\// 0 0 0 0 0 / 20 \n\// -4-10-20-10 -4 \n\// -5 -8-10 -8 -5 \n\\n\vec4 vertEdge = - 5.0 * sample[0] - 8.0 * sample[1] - \n\10.0 * sample[2] - 8.0 * sample[3] - 5.0 * sample[4] - \n\4.0 * sample[5] - 10.0 * sample[6] - 20.0 * sample[7] - \n\10.0 * sample[8] - 4.0 * sample[9] + 4.0 * sample[15] + \n\10.0 * sample[16] + 20.0 * sample[17] + 10.0 * sample[18] + \n\4.0 * sample[19] + 5.0 * sample[20] + 8.0 * sample[21] + \n\10.0 * sample[22] + 8.0 * sample[23] + 5.0 * sample[24]; \n\\n\vec4 horizEdge = 5.0 * sample[0] + 4.0 * sample[1] - \n\4.0 * sample[3] - 5.0 * sample[4] + 8.0 * sample[5] + \n\10.0 * sample[6] - 10.0 * sample[8] - 8.0 * sample[9] + \n\10.0 * sample[10] + 20.0 * sample[11] - 20.0 * sample[13] - \n\10.0 * sample[14] + 8.0 * sample[15] + 10.0 * sample[16] - \n\10.0 * sample[18] - 8.0 * sample[19] + 5.0 * sample[20] + \n\4.0 * sample[21] - 4.0 * sample[23] - 5.0 * sample[24]; \n\\n\gl_FragColor.rgb = sqrt((horizEdge.rgb * horizEdge.rgb) + \n\(vertEdge.rgb * vertEdge.rgb)) / 20.0f; \n\gl_FragColor.a = 1.0; \n\
}"
end-- 獲得數據內容[FSH][運動模糊]
function M:getMotionBlurFSH()return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
uniform vec2 u_TextureCoordOffset[25]; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\
uniform sampler2D tex; \n\\n\
const float contrast = 1.6; \n\
const float brightness = 0.3; \n\
const float factor = -0.5 * contrast + brightness; \n\\n\
void main() \n\
{ \n\gl_FragColor = vec4(0.0); \n\//vec4 c = texture2D(u_Texture,v_texCoord.st); \n\//gl_FragColor = clamp(c * contrast + factor, 0.0, 1.); \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, -0.028))*0.0044299121055113265; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, -0.024))*0.00895781211794; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, -0.020))*0.0215963866053; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, -0.016))*0.0443683338718; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, -0.012))*0.0776744219933; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, -0.008))*0.115876621105; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, -0.004))*0.147308056121; \n\gl_FragColor += texture2D(u_Texture, v_texCoord )*0.159576912161; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, 0.004))*0.147308056121; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, 0.008))*0.115876621105; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, 0.012))*0.0776744219933; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, 0.016))*0.0443683338718; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, 0.020))*0.0215963866053; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, 0.024))*0.00895781211794; \n\gl_FragColor += texture2D(u_Texture, v_texCoord + vec2(0.0, 0.028))*0.0044299121055113265; \n\
}"
end
-- 獲得數據內容[VSH]
function M:getDefaultVSH()return
" \n\
attribute vec4 a_position; \n\
attribute vec2 a_texCoord; \n\
attribute vec4 a_color; \n\\n\
#ifdef GL_ES \n\
varying lowp vec4 v_fragmentColor; \n\
varying mediump vec2 v_texCoord; \n\
#else \n\
varying vec4 v_fragmentColor; \n\
varying vec2 v_texCoord; \n\
#endif \n\\n\
void main() \n\
{ \n\gl_Position = CC_MVPMatrix * a_position; \n\v_fragmentColor = a_color; \n\v_texCoord = a_texCoord; \n\
}"
end-- 獲得數據內容[FSH][默認]
function M:getDefaultFSH()return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
uniform vec2 u_TextureCoordOffset[25]; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main(void) \n\
{ \n\
gl_FragColor = texture2D(u_Texture, v_texCoord.st); \n\
} \n\
"
end-- 獲得數據內容[FSH][反色]
function M:getNegativeFSH()-- 負色-- 逐像素，使用白色減去當前像素顏色得到return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\
void main() \n\
{ \n\float T = 1.0; \n\vec2 st = v_texCoord.st; \n\vec3 irgb = texture2D(u_Texture, st).rgb; \n\vec3 neg = vec3(1., 1., 1.)-irgb; \n\gl_FragColor = vec4(mix(irgb,neg, T), 1.); \n\
}"
end-- 獲得數據內容[FSH][高光]
function M:getBrightnessFSH()-- 高光-- 使用添加 或者 減去黑色，達到調整圖片光亮度的效果return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main() \n\
{ \n\float T = 2.0; \n\vec2 st = v_texCoord.st; \n\vec3 irgb = texture2D(u_Texture, st).rgb; \n\vec3 black = vec3(0., 0., 0.); \n\gl_FragColor = vec4(mix(black, irgb, T), 1.); \n\
}"
end-- 獲得數據內容[FSH][老照片]
function M:getColorSpriteFSH()return
" \n\
#ifdef GL_ES \n\precision mediump float; \n\
#endif \n\\n\
uniform sampler2D u_texture; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main(void) \n\
{ \n\// vec3( 0.299, 0.587, 0.114 ) 是RGB轉YUV的參數值，生成灰色圖 \n\float MixColor = dot(texture2D(u_texture, v_texCoord).rgb, vec3(0.299, 0.587, 0.114)); \n\// 使用灰色圖進行顏色混合 \n\vec4 blendColor = vec4( 1.2, 1.0, 0.8, 1.0 ); // 調整這個值以修改最終混合色值 \n\gl_FragColor = vec4(MixColor * blendColor.r, MixColor * blendColor.g, MixColor * blendColor.b, blendColor.a); \n\
}"
end-- 獲得數據內容[FSH][對比]
function M:getContrastFSH()-- 對比效果-- 使用一個灰色圖作為基礎圖像，和彩色圖混合。-- 逐像素的將圖片顏色差向灰度兩邊擴大，得到對比效果return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
void main() \n\
{ \n\float T = 2.0; \n\vec2 st = v_texCoord.st; \n\vec3 irgb = texture2D(u_Texture, st).rgb; \n\vec3 target = vec3(0.5, 0.5, 0.5); \n\gl_FragColor = vec4(mix(target, irgb, T), 1.); \n\
}"
end-- 獲得數據內容[FSH][飽和]
function M:getSaturationFSH()-- 飽和-- 混合彩色圖片和其亮度圖的灰階，得到飽和圖return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\
const vec3 W = vec3(0.2125, 0.7154, 0.0721); \n\\n\
void main() \n\
{ \n\float T = 3.0; \n\vec2 st = v_texCoord.st; \n\vec3 irgb = texture2D(u_Texture, st).rgb; \n\float luminance = dot(irgb, W); \n\vec3 target = vec3(luminance, luminance, luminance); \n\gl_FragColor = vec4(mix(target, irgb, T), 1.); \n\
}"
end-- 獲得數據內容[FSH][黑白]
function M:getBlackWhiteFSH()-- 黑白-- 轉為灰度圖，然后根據閥值，轉為黑白return
" \n\
precision mediump float; \n\
uniform sampler2D u_Texture; \n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\
const vec4 W = vec4(0.2125, 0.7154, 0.0721, 0); \n\\n\
void main() \n\
{ \n\vec4 col = texture2D(u_Texture, v_texCoord.st); \n\float lum = dot(col, W); \n\if (0.5 < lum) { \n\gl_FragColor = v_fragmentColor; \n\} else { \n\gl_FragColor = vec4(0, 0, 0, 1);} \n\
}"
end-- 獲得數據內容[FSH][邊緣]
function M:getEdgeDetectionFSH()return
" \n\
#ifdef GL_ES \n\
precision mediump float; \n\
precision mediump int; \n\
#endif \n\\n\
uniform sampler2D u_Texture; \n\
const vec2 texOffset = vec2( 0.005, 0.005); \n\\n\
varying vec2 v_texCoord; \n\
varying vec4 v_fragmentColor; \n\\n\
const vec4 lumcoeff = vec4(0.299, 0.587, 0.114, 0); \n\\n\
void main() \n\
{ \n\
vec2 tc0 = v_texCoord.st + vec2(-texOffset.s, -texOffset.t); \n\
vec2 tc1 = v_texCoord.st + vec2( 0.0, -texOffset.t); \n\
vec2 tc2 = v_texCoord.st + vec2(+texOffset.s, -texOffset.t); \n\
vec2 tc3 = v_texCoord.st + vec2(-texOffset.s, 0.0); \n\
vec2 tc4 = v_texCoord.st + vec2( 0.0, 0.0); \n\
vec2 tc5 = v_texCoord.st + vec2(+texOffset.s, 0.0); \n\
vec2 tc6 = v_texCoord.st + vec2(-texOffset.s, +texOffset.t); \n\
vec2 tc7 = v_texCoord.st + vec2( 0.0, +texOffset.t); \n\
vec2 tc8 = v_texCoord.st + vec2(+texOffset.s, +texOffset.t); \n\\n\
vec4 col0 = texture2D(u_Texture, tc0); \n\
vec4 col1 = texture2D(u_Texture, tc1); \n\
vec4 col2 = texture2D(u_Texture, tc2); \n\
vec4 col3 = texture2D(u_Texture, tc3); \n\
vec4 col4 = texture2D(u_Texture, tc4); \n\
vec4 col5 = texture2D(u_Texture, tc5); \n\
vec4 col6 = texture2D(u_Texture, tc6); \n\
vec4 col7 = texture2D(u_Texture, tc7); \n\
vec4 col8 = texture2D(u_Texture, tc8); \n\\n\
vec4 sum = 8.0 * col4 - (col0 + col1 + col2 + col3 + col5 + col6 + col7 + col8); \n\
gl_FragColor = vec4(sum.rgb, 1.0) * v_fragmentColor; \n\
}"
end-- 獲得數據內容[FSH][浮雕]
function M:getEmbossFSH()return
" \n\
#ifdef GL_ES \n\
precision mediump float; \n\
precision mediump int; \n\
#endif \n\\n\
uniform sampler2D u_Texture; \n\
const vec2 texOffset = vec2( 0.005, 0.005); \n\\n\
varying vec4 v_fragmentColor; \n\
varying vec2 v_texCoord; \n\\n\
const vec4 lumcoeff = vec4(0.299, 0.587, 0.114, 0); \n\\n\
void main() \n\
{ \n\
vec2 tc0 = v_texCoord.st + vec2(-texOffset.s, -texOffset.t); \n\
vec2 tc1 = v_texCoord.st + vec2( 0.0, -texOffset.t); \n\
vec2 tc2 = v_texCoord.st + vec2(-texOffset.s, 0.0); \n\
vec2 tc3 = v_texCoord.st + vec2(+texOffset.s, 0.0); \n\
vec2 tc4 = v_texCoord.st + vec2( 0.0, +texOffset.t); \n\
vec2 tc5 = v_texCoord.st + vec2(+texOffset.s, +texOffset.t); \n\\n\
vec4 col0 = texture2D(u_Texture, tc0); \n\
vec4 col1 = texture2D(u_Texture, tc1); \n\
vec4 col2 = texture2D(u_Texture, tc2); \n\
vec4 col3 = texture2D(u_Texture, tc3); \n\
vec4 col4 = texture2D(u_Texture, tc4); \n\
vec4 col5 = texture2D(u_Texture, tc5); \n\\n\
vec4 sum = vec4(0.5) + (col0 + col1 + col2) - (col3 + col4 + col5); \n\
float lum = dot(sum, lumcoeff); \n\
gl_FragColor = vec4(lum, lum, lum, 1.0) * v_fragmentColor; \n\
}"
end
-- 獲得Shadow結點數據[VSH]
function M:getShaderNodeVSH()-- ccPositionTextureA8Color_vertreturn
" \n\
attribute vec4 a_position; \n\
attribute vec2 a_texCoord; \n\
attribute vec4 a_color; \n\\n\
#ifdef GL_ES \n\
varying lowp vec4 v_fragmentColor; \n\
varying mediump vec2 v_texCoord; \n\
#else \n\
varying vec4 v_fragmentColor; \n\
varying vec2 v_texCoord; \n\
#endif \n\\n\
void main() \n\
{ \n\gl_Position = CC_MVPMatrix * a_position; \n\v_fragmentColor = a_color; \n\v_texCoord = a_texCoord; \n\
} \n\
"
end-- 獲得Shadow結點數據[FSH]
function M:getShaderNodeFSHEmboss()return
" \n\
#ifdef GL_ES \n\precision mediump float; \n\
#endif \n\
varying vec2 v_texCoord; \n\
uniform sampler2D u_texture; \n\
uniform float u_time; \n\
void main() \n\
{ \n\vec2 onePixel = vec2(1.0 / 480.0, 1.0 / 320.0); \n\vec2 texCoord = v_texCoord; \n\texCoord.x += sin(u_time) * (onePixel.x * 6.0); \n\texCoord.y += cos(u_time) * (onePixel.y * 6.0); \n\vec4 color; \n\color.rgb = vec3(0.5); \n\color -= texture2D(u_texture, texCoord - onePixel) * 5.0; \n\color += texture2D(u_texture, texCoord + onePixel) * 5.0; \n\color.rgb = vec3((color.r + color.g + color.b) / 3.0); \n\gl_FragColor = vec4(color.rgb, 1); \n\
}"
end-- 獲得Shadow結點數據[FSH]
function M:getShaderNodeFSHColorRamp()return
" \n\
#ifdef GL_ES \n\
precision mediump float; \n\
#endif \n\
varying vec2 v_texCoord; \n\
uniform sampler2D u_texture; \n\
uniform sampler2D u_colorRampTexture; \n\
void main() \n\
{ \n\
vec3 normalColor = texture2D( u_texture, v_texCoord ).rgb; \n\
float rampedR = texture2D( u_colorRampTexture, vec2( normalColor.r, 0 )).g; \n\
float rampedG = texture2D( u_colorRampTexture, vec2( normalColor.r, 0 )).g; \n\
float rampedB = texture2D( u_colorRampTexture, vec2( normalColor.r, 0 )).b; \n\
gl_FragColor = vec4( rampedR, rampedG, rampedB, 1 ); \n\
}"
end
總結
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