quakeforge/libs/video/renderer/glsl/quaketxt.frag

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precision mediump float;
uniform sampler2D charmap;
uniform sampler2D palette;
varying sv;
void
main (void)
{
int pix;
pix = texture2D (charmap, sv, 0);
gl_FragColor = texture2D (palette, vec2 (pix, 0.5), 0);
}