mirror of https://github.com/axmolengine/axmol.git
17 lines
355 B
GLSL
17 lines
355 B
GLSL
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const char* ccUIGrayScale_frag = STRINGIFY(
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\n#ifdef GL_ES\n
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\nprecision mediump float;\n
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\n#endif\n
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\n\n
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\nvarying vec4 v_fragmentColor;\n
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\nvarying vec2 v_texCoord;\n
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\n\n
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\nvoid main(void)\n
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\n{\n
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\nvec4 c = texture2D(CC_Texture0, v_texCoord);\n
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\ngl_FragColor.xyz = vec3(0.2126*c.r + 0.7152*c.g + 0.0722*c.b);\n
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\ngl_FragColor.w = c.w;\n
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\n}\n
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);
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