1varying vec2 texCoord;
 2uniform sampler2D tex;
 3uniform vec2 texSize;
 4
 5void main() {
 6	float scale[32];
 7	scale[ 0] =   0.0/255.0; scale[ 1] = 6.0/255.0;
 8	scale[ 2] =  12.0/255.0; scale[ 3] = 18.0/255.0;
 9	scale[ 4] =  24.0/255.0; scale[ 5] = 31.0/255.0;
10	scale[ 6] =  37.0/255.0; scale[ 7] = 43.0/255.0;
11	scale[ 8] =  49.0/255.0; scale[ 9] = 55.0/255.0;
12	scale[10] =  61.0/255.0; scale[11] = 67.0/255.0;
13	scale[12] =  73.0/255.0; scale[13] = 79.0/255.0;
14	scale[14] =  86.0/255.0; scale[15] = 92.0/255.0;
15	scale[16] =  98.0/255.0; scale[17] = 104.0/255.0;
16	scale[18] = 111.0/255.0; scale[19] = 117.0/255.0;
17	scale[20] = 123.0/255.0; scale[21] = 129.0/255.0;
18	scale[22] = 135.0/255.0; scale[23] = 141.0/255.0;
19	scale[24] = 148.0/255.0; scale[25] = 154.0/255.0;
20	scale[26] = 159.0/255.0; scale[27] = 166.0/255.0;
21	scale[28] = 172.0/255.0; scale[29] = 178.0/255.0;
22	scale[30] = 184.0/255.0; scale[31] = 191.0/255.0;
23	
24	vec4 color = texture2D(tex, texCoord);
25	color.r = scale[int(floor(color.r * 31.0 + 0.5))];
26	color.g = scale[int(floor(color.g * 31.0 + 0.5))];
27	color.b = scale[int(floor(color.b * 31.0 + 0.5))];
28	gl_FragColor = color;
29}