diff --git a/app/src/main/res/raw/tiltshift_fragment.glsl b/app/src/main/res/raw/tiltshift_fragment.glsl
index 3b4b33e..a051474 100644
--- a/app/src/main/res/raw/tiltshift_fragment.glsl
+++ b/app/src/main/res/raw/tiltshift_fragment.glsl
@@ -1,8 +1,8 @@
+#extension GL_OES_EGL_image_external : require
+
 // Fragment shader for tilt-shift effect
 // Applies gradient blur based on distance from focus line
 
-#extension GL_OES_EGL_image_external : require
-
 precision mediump float;
 
 // Camera texture (external texture for camera preview)
@@ -17,16 +17,6 @@ uniform vec2 uResolution;       // Texture resolution for proper sampling
 
 varying vec2 vTexCoord;
 
-// Blur kernel size (must be odd)
-const int KERNEL_SIZE = 9;
-const float KERNEL_HALF = 4.0;
-
-// Gaussian weights for 9-tap blur (sigma ~= 2.0)
-const float weights[9] = float[](
-    0.0162, 0.0540, 0.1216, 0.1933, 0.2258,
-    0.1933, 0.1216, 0.0540, 0.0162
-);
-
 // Calculate signed distance from the focus line
 float focusDistance(vec2 uv) {
     // Rotate coordinate system around center
@@ -57,6 +47,19 @@ float blurFactor(float dist) {
     return smoothstep(0.0, 1.0, normalizedDist) * uBlurAmount;
 }
 
+// Get Gaussian weight for blur kernel (9-tap, sigma ~= 2.0)
+float getWeight(int i) {
+    if (i == 0) return 0.0162;
+    if (i == 1) return 0.0540;
+    if (i == 2) return 0.1216;
+    if (i == 3) return 0.1933;
+    if (i == 4) return 0.2258;
+    if (i == 5) return 0.1933;
+    if (i == 6) return 0.1216;
+    if (i == 7) return 0.0540;
+    return 0.0162; // i == 8
+}
+
 // Sample with Gaussian blur
 vec4 sampleBlurred(vec2 uv, float blur) {
     if (blur < 0.01) {
@@ -73,10 +76,11 @@ vec4 sampleBlurred(vec2 uv, float blur) {
     // Scale blur radius by blur amount
     float radius = blur * 20.0;
 
-    for (int i = 0; i < KERNEL_SIZE; i++) {
-        float offset = (float(i) - KERNEL_HALF);
+    // 9-tap Gaussian blur
+    for (int i = 0; i < 9; i++) {
+        float offset = float(i) - 4.0;
         vec2 samplePos = uv + blurDir * texelSize * offset * radius;
-        color += texture2D(uTexture, samplePos) * weights[i];
+        color += texture2D(uTexture, samplePos) * getWeight(i);
     }
 
     return color;