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uniform lowp sampler2D cyan;
uniform lowp sampler2D magenta;
uniform lowp sampler2D yellow;
uniform lowp sampler2D black;
varying highp vec2 qt_TexCoord0;
uniform lowp float qt_Opacity;
void main() {
highp vec2 t = qt_TexCoord0 * 3. - 1.;
lowp float c = texture2D(cyan, t + vec2(.05, .09)).a;
lowp float m = texture2D(magenta, t + vec2(.04, -.10)).a;
lowp float y = texture2D(yellow, t + vec2(-.10, .01)).a;
lowp float k = texture2D(black, t).a;
gl_FragColor = 1. - vec4(c + k, m + k, y + k, 0.);
}
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