z-bar-qt/Plugins/ZShell/Internal/shaders/strokeholemask.frag

#version 440

QC_INCLUDE "customfrag.glsl"


float sdRoundRect(vec2 p, vec2 b, float r) {
    vec2 q = abs(p) - b + vec2(r);
    return min(max(q.x, q.y), 0.0) + length(max(q, 0.0)) - r;
}

void main() {
    float keep = 1.0;

    if (data4.x > 0.5) {
        vec2 p = fragCoord - data1.xy;
        float feather = max(data3.y, 0.0001);
        keep = smoothstep(-feather, feather, sdRoundRect(p, data1.zw, data3.x));
    }

    float a = keep * data2.w * globalAlpha * antialiasingAlpha();
    fragColor = vec4(data2.rgb * a, a);
}