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014e5109707a25f85a34fa17d4ffe278fabde52b
[framework/uifw/evas.git]
/
src
/
modules
/
engines
/
gl_common
/
shader
/
filter_greyscale.shd
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#ifdef GL_ES
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precision mediump float;
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#endif
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uniform sampler2D tex;
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varying vec4 col;
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varying vec2 tex_c;
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void main()
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{
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float inten = dot(texture2D(tex,tex_c.xy).agb,vec3(.3, .59, .11));
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gl_FragColor = vec4(inten, inten, inten, texture2D(tex,tex_c.xy).r) * col;
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}