From d3b2736d64988af02b58e934d63fe1c2f0f38d6a Mon Sep 17 00:00:00 2001
From: Akshay Nair <phenax5@gmail.com>
Date: Sat, 17 Oct 2026 20:25:20 +0530
Subject: Add koduval

---
 src/main/resources/shaders/modules/noise.glsl | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/main/resources/shaders/modules/noise.glsl')

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;
-- 
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