mirror of https://github.com/axmolengine/axmol.git
19 lines
422 B
GLSL
19 lines
422 B
GLSL
#ifdef GL_ES
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precision mediump float;
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#endif
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varying vec4 v_fragmentColor;
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varying vec2 v_texCoord;
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uniform sampler2D u_texture;
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void main(void)
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{
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vec4 c = texture2D(u_texture, v_texCoord);
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vec4 final = c;
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final.r = (c.r * 0.393) + (c.g * 0.769) + (c.b * 0.189);
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final.g = (c.r * 0.349) + (c.g * 0.686) + (c.b * 0.168);
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final.b = (c.r * 0.272) + (c.g * 0.534) + (c.b * 0.131);
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gl_FragColor = final;
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} |