XEL_X =.0 / TEXTURE_WIDTH; const float HALF_TEXEL_X =ULL_TEXEL_X / 2.0; uniform vec4 fractionsi12); uniform sampler2D colors; uniform float offset; vec4 sampleGradient(float dist) { int i; float relFraction =.0; { relFraction +=lamp((dist - fractions[0J.x) • fractions(0).y, 0.0, 1.0); } relFractio