BLOKS | STUDIO demo home page – BLOKS

void mainImage(out vec4 fragColor, in vec2 fragCoord) {
    vec2 uv = fragCoord.xy / iResolution.xy;
    vec2 p = uv * 2.0 - 1.0;
    p.x *= uAspect;

    vec2 m = uPointer * 2.0 - 1.0;
    m.x *= uAspect;

    float d = length(p - m);
    float t = iTime;

    float rings = sin(d * 38.0 - t * 6.0);
    rings = smoothstep(0.25, 1.0, rings * 0.5 + 0.5);
    rings *= exp(-d * 2.5);

    vec3 bg = vec3(0.006, 0.01, 0.035);
    vec3 blue = vec3(0.05, 0.25, 1.0);
    vec3 cyan = vec3(0.20, 0.85, 1.0);

    vec3 col = bg;
    col += blue * rings;
    col += cyan * (0.018 / max(d, 0.018)) * 0.18;

    col = pow(max(col, 0.0), vec3(0.88));

    fragColor = vec4(col, 1.0);
}