1 files changed, 6 insertions, 0 deletions
diff --git a/src/main/resources/shaders/modules/noise.glsl b/src/main/resources/shaders/modules/noise.glsl
index ebedd6d..c831b6f 100644
--- a/src/main/resources/shaders/modules/noise.glsl
+++ b/src/main/resources/shaders/modules/noise.glsl
@@ -27,6 +27,12 @@ float random(vec3 scale, float seed) {
                seed);
 }
 
+// From https://github.com/mir-one/fingerprints/blob/main/algo.glsl
+vec2 fphash2(vec2 p) {
+  p = vec2(dot(p, vec2(63.31, 127.63)), dot(p, vec2(395.467, 213.799)));
+  return -1.0 + 2.0 * fract(sin(p) * 43141.59265);
+}
+
 // Fractal Brownian Noise
 float fbm(vec3 x, int octaves) {
   float v = 0.0;