From 707c8896cef6bff291f5d2f3339cf9bf46ee2242 Mon Sep 17 00:00:00 2001
From: Akshay Nair <phenax5@gmail.com>
Date: Mon, 14 Sep 2026 11:46:56 +0530
Subject: Refactor stuff

---
 src/main/resources/shaders/modules/noise.glsl | 67 +++++++++++++++++++++++++++
 src/main/resources/shaders/modules/sdf.cs     | 12 -----
 src/main/resources/shaders/modules/sdf.glsl   | 12 +++++
 src/main/resources/shaders/modules/utils.cs   |  4 --
 src/main/resources/shaders/modules/utils.glsl |  4 ++
 5 files changed, 83 insertions(+), 16 deletions(-)
 create mode 100644 src/main/resources/shaders/modules/noise.glsl
 delete mode 100644 src/main/resources/shaders/modules/sdf.cs
 create mode 100644 src/main/resources/shaders/modules/sdf.glsl
 delete mode 100644 src/main/resources/shaders/modules/utils.cs
 create mode 100644 src/main/resources/shaders/modules/utils.glsl

(limited to 'src/main/resources/shaders/modules')

diff --git a/src/main/resources/shaders/modules/noise.glsl b/src/main/resources/shaders/modules/noise.glsl
new file mode 100644
index 0000000..ebedd6d
--- /dev/null
+++ b/src/main/resources/shaders/modules/noise.glsl
@@ -0,0 +1,67 @@
+// Noise Related Functions
+float mod289(float x) { return x - floor(x * (1.0 / 289.0)) * 289.0; }
+vec4 mod289(vec4 x) { return x - floor(x * (1.0 / 289.0)) * 289.0; }
+vec4 perm(vec4 x) { return mod289(((x * 34.0) + 1.0) * x); }
+float noise(vec3 p) {
+  vec3 a = floor(p);
+  vec3 d = p - a;
+  d = d * d * (3.0 - 2.0 * d);
+  vec4 b = a.xxyy + vec4(0.0, 1.0, 0.0, 1.0);
+  vec4 k1 = perm(b.xyxy);
+  vec4 k2 = perm(k1.xyxy + b.zzww);
+  vec4 c = k2 + a.zzzz;
+  vec4 k3 = perm(c);
+  vec4 k4 = perm(c + 1.0);
+  vec4 o1 = fract(k3 * (1.0 / 41.0));
+  vec4 o2 = fract(k4 * (1.0 / 41.0));
+  vec4 o3 = o2 * d.z + o1 * (1.0 - d.z);
+  vec2 o4 = o3.yw * d.x + o3.xz * (1.0 - d.x);
+  return o4.y * d.y + o4.x * (1.0 - d.y);
+}
+float PHI = 1.61803398874989484820459; // Φ = Golden Ratio
+float gold_noise(in vec2 xy, in float seed) {
+  return fract(tan(distance(xy * PHI, xy) * seed) * xy.x);
+}
+float random(vec3 scale, float seed) {
+  return fract(sin(dot(gl_GlobalInvocationID.xyz + seed, scale)) * 43758.5453 +
+               seed);
+}
+
+// Fractal Brownian Noise
+float fbm(vec3 x, int octaves) {
+  float v = 0.0;
+  float a = 0.5;
+  vec3 shift = vec3(100);
+  for (int i = 0; i < octaves; ++i) {
+    v += a * noise(x);
+    x = x * 2.0 + shift;
+    a *= 0.5;
+  }
+  return v;
+}
+
+float random(vec2 st) {
+  return fract(sin(dot(st.xy, vec2(12.9898, 78.233))) * 43758.5453123);
+}
+
+float noise(vec2 st) {
+  vec2 i = floor(st);
+  vec2 f = fract(st);
+  float a = random(i);
+  float b = random(i + vec2(1.0, 0.0));
+  float c = random(i + vec2(0.0, 1.0));
+  float d = random(i + vec2(1.0, 1.0));
+  vec2 u = f * f * (3.0 - 2.0 * f);
+  return mix(a, b, u.x) + (c - a) * u.y * (1.0 - u.x) + (d - b) * u.x * u.y;
+}
+
+float fbm(vec2 st) {
+  float value = 0.0;
+  float amplitude = 0.5;
+  for (int i = 0; i < 5; i++) {
+    value += amplitude * noise(st);
+    st *= 2.0;
+    amplitude *= 0.5;
+  }
+  return value;
+}
diff --git a/src/main/resources/shaders/modules/sdf.cs b/src/main/resources/shaders/modules/sdf.cs
deleted file mode 100644
index 8121b18..0000000
--- a/src/main/resources/shaders/modules/sdf.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-float sdf_circle(in vec3 p, in float radius) {
-  return length(p) - radius;
-}
-
-float sdf_plane(in vec3 p, in vec3 normal, in float offset) {
-  return dot(p, normal) + offset;
-}
-
-float sdf_box(in vec3 p, in vec3 dimens, in float rounding) {
-  vec3 q = abs(p) - dimens + rounding;
-  return length(max(q, 0.0)) + min(max(q.x, max(q.y, q.z)), 0.0) - rounding;
-}
diff --git a/src/main/resources/shaders/modules/sdf.glsl b/src/main/resources/shaders/modules/sdf.glsl
new file mode 100644
index 0000000..8121b18
--- /dev/null
+++ b/src/main/resources/shaders/modules/sdf.glsl
@@ -0,0 +1,12 @@
+float sdf_circle(in vec3 p, in float radius) {
+  return length(p) - radius;
+}
+
+float sdf_plane(in vec3 p, in vec3 normal, in float offset) {
+  return dot(p, normal) + offset;
+}
+
+float sdf_box(in vec3 p, in vec3 dimens, in float rounding) {
+  vec3 q = abs(p) - dimens + rounding;
+  return length(max(q, 0.0)) + min(max(q.x, max(q.y, q.z)), 0.0) - rounding;
+}
diff --git a/src/main/resources/shaders/modules/utils.cs b/src/main/resources/shaders/modules/utils.cs
deleted file mode 100644
index 1616e8c..0000000
--- a/src/main/resources/shaders/modules/utils.cs
+++ /dev/null
@@ -1,4 +0,0 @@
-float smin(float a, float b, float k) {
-  float h = clamp(0.5 + 0.5 * (b - a) / k, 0.0, 1.0);
-  return mix(b, a, h) - k * h * (1.0 - h);
-}
diff --git a/src/main/resources/shaders/modules/utils.glsl b/src/main/resources/shaders/modules/utils.glsl
new file mode 100644
index 0000000..1616e8c
--- /dev/null
+++ b/src/main/resources/shaders/modules/utils.glsl
@@ -0,0 +1,4 @@
+float smin(float a, float b, float k) {
+  float h = clamp(0.5 + 0.5 * (b - a) / k, 0.0, 1.0);
+  return mix(b, a, h) - k * h * (1.0 - h);
+}
-- 
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