16 lines
400 B
C
16 lines
400 B
C
"#ifdef GL_ES\n"
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"#ifdef GL_FRAGMENT_PRECISION_HIGH\n"
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"precision highp float;\n"
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"#else\n"
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"precision mediump float;\n"
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"#endif\n"
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"#endif\n"
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"uniform sampler2D tex;\n"
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"varying vec4 col;\n"
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"varying vec2 tex_c;\n"
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"void main()\n"
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"{\n"
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" float inten = dot(texture2D(tex,tex_c.xy).agb,vec3(.3, .59, .11));\n"
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" gl_FragColor = vec4(inten, inten, inten, texture2D(tex,tex_c.xy).r) * col;\n"
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"}\n"
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