lets go

gui/gnome/autocustom-gnome-macos/res/extensions/blur-my-shell@aunetx/effects/noise.glsl

@@ -0,0 +1,20 @@
+uniform sampler2D tex;
+uniform float noise;
+uniform float lightness;
+
+float PHI = 1.61803398874989484820459;
+float SEED = 24;
+
+float noise_gen(in vec2 xy) {
+    float r = fract(tan(distance(xy * PHI, xy) * SEED) * xy.x);
+    r = r != r ? 0.0 : r;
+    return r;
+}
+
+void main() {
+    vec4 c = texture2D(tex, cogl_tex_coord_in[0].st);
+    vec3 pix_color = c.xyz;
+    float blend = noise * (1. - noise_gen(gl_FragCoord.xy));
+
+    cogl_color_out = vec4(mix(pix_color, lightness * pix_color, blend), 1.);
+}