2 precision mediump float;
9 vec3 inp = texture2D(tex,tex_c.xy).abg;
11 sep.r = dot(inp, vec3(.393, .769, .189));
12 sep.g = dot(inp, vec3(.349, .686, .168));
13 sep.b = dot(inp, vec3(.272, .534, .131));
14 sep.a = texture2D(tex,tex_c.xy).r;
15 gl_FragColor = sep * col;