From e579ae120290329fd697b50ea9138ffccb65a805 Mon Sep 17 00:00:00 2001
From: Maze Winther <mazewinther@gmail.com>
Date: Wed, 1 Apr 2026 13:57:32 +0200
Subject: feat: migrate GPU renderer from WebGL to wgpu/WASM

---
 apps/web/src/lib/shaders/jfa-step.frag.glsl | 60 -----------------------------
 1 file changed, 60 deletions(-)
 delete mode 100644 apps/web/src/lib/shaders/jfa-step.frag.glsl

(limited to 'apps/web/src/lib/shaders/jfa-step.frag.glsl')

diff --git a/apps/web/src/lib/shaders/jfa-step.frag.glsl b/apps/web/src/lib/shaders/jfa-step.frag.glsl
deleted file mode 100644
index 9b76a70b..00000000
--- a/apps/web/src/lib/shaders/jfa-step.frag.glsl
+++ /dev/null
@@ -1,60 +0,0 @@
-precision mediump float;
-
-uniform sampler2D u_texture;
-uniform vec2 u_resolution;
-uniform float u_step_size;
-
-varying vec2 v_texCoord;
-
-vec2 decodeSeed(vec4 encoded) {
-  float x = floor(encoded.r * 255.0 + 0.5) * 256.0 + floor(encoded.g * 255.0 + 0.5);
-  float y = floor(encoded.b * 255.0 + 0.5) * 256.0 + floor(encoded.a * 255.0 + 0.5);
-  return vec2(x, y);
-}
-
-vec4 encodeSeed(vec2 seed) {
-  float xHi = floor(seed.x / 256.0);
-  float xLo = seed.x - xHi * 256.0;
-  float yHi = floor(seed.y / 256.0);
-  float yLo = seed.y - yHi * 256.0;
-  return vec4(xHi / 255.0, xLo / 255.0, yHi / 255.0, yLo / 255.0);
-}
-
-bool isNoSeed(vec4 encoded) {
-  return encoded.r > 0.99 && encoded.g > 0.99 && encoded.b > 0.99 && encoded.a > 0.99;
-}
-
-void main() {
-  vec2 pixelCoord = floor(v_texCoord * u_resolution);
-  vec2 texelSize = 1.0 / u_resolution;
-
-  float bestDist = 1e10;
-  vec2 bestSeed = vec2(65535.0);
-
-  for (int dy = -1; dy <= 1; dy++) {
-    for (int dx = -1; dx <= 1; dx++) {
-      vec2 offset = vec2(float(dx), float(dy)) * u_step_size;
-      vec2 sampleUV = v_texCoord + offset * texelSize;
-
-      if (sampleUV.x < 0.0 || sampleUV.x > 1.0 || sampleUV.y < 0.0 || sampleUV.y > 1.0)
-        continue;
-
-      vec4 encoded = texture2D(u_texture, sampleUV);
-      if (isNoSeed(encoded))
-        continue;
-
-      vec2 seed = decodeSeed(encoded);
-      float dist = distance(pixelCoord, seed);
-      if (dist < bestDist) {
-        bestDist = dist;
-        bestSeed = seed;
-      }
-    }
-  }
-
-  if (bestDist < 1e9) {
-    gl_FragColor = encodeSeed(bestSeed);
-  } else {
-    gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0);
-  }
-}
-- 
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