vibe out them edge reflections

shaders/liquid-glass.frag

@@ -10,6 +10,8 @@ layout(std140, binding = 0) uniform buf {
     float warpStrength;
     float flowSpeed;
     float scale;
+    float edgeReflectionStrength;
+    float edgeReflectionWidth;
 } ubuf;
 
 layout(binding = 1) uniform sampler2D source;
@@ -49,16 +51,72 @@ void main() {
     // Combine flows for more organic movement
     vec2 finalFlow = (flowDir1 + flowDir2 * 0.5) * ubuf.warpStrength * 0.01;
 
-    // Apply subtle chromatic aberration like Apple's effect
+    // Apply subtle chromatic aberration
     float aberration = length(finalFlow) * 0.5;
 
     vec2 distortedUV = uv + finalFlow;
 
-    // Sample with slight chromatic separation
+    // Sample with slight chromatic separation for main glass effect
     float r = texture(source, distortedUV + vec2(aberration, 0.0)).r;
     float g = texture(source, distortedUV).g;
     float b = texture(source, distortedUV - vec2(aberration, 0.0)).b;
 
-    fragColor = vec4(r, g, b, 1.0) * ubuf.qt_Opacity;
+    vec4 glassColor = vec4(r, g, b, 1.0);
+
+    // Simple edge reflection - back to what worked
+    float edgeWidth = ubuf.edgeReflectionWidth;
+
+    // Calculate distance from edges
+    float distFromLeft = uv.x;
+    float distFromRight = 1.0 - uv.x;
+    float distFromTop = uv.y;
+    float distFromBottom = 1.0 - uv.y;
+
+    // Find the minimum distance to any edge
+    float minDistToEdge = min(min(distFromLeft, distFromRight), min(distFromTop, distFromBottom));
+
+    // Create edge mask
+    float edgeMask = smoothstep(edgeWidth, 0.0, minDistToEdge);
+
+    if (edgeMask > 0.0) {
+        vec2 reflectionUV = distortedUV;
+
+        // Simple reflection logic
+        if (minDistToEdge == distFromLeft) {
+            // Left edge - flip horizontally
+            reflectionUV.x = 1.0 - distortedUV.x;
+        } else if (minDistToEdge == distFromRight) {
+            // Right edge - keep as is but sample from further right
+            reflectionUV.x = distortedUV.x + 0.1;
+        } else if (minDistToEdge == distFromTop) {
+            // Top edge - flip vertically
+            reflectionUV.y = 1.0 - distortedUV.y;
+        } else {
+            // Bottom edge - flip vertically
+            reflectionUV.y = 1.0 - distortedUV.y + 0.1;
+        }
+
+        // Clamp to valid range
+        reflectionUV = clamp(reflectionUV, 0.0, 1.0);
+
+        // Sample reflection with same chromatic aberration
+        float rRefl = texture(source, reflectionUV + vec2(aberration, 0.0)).r;
+        float gRefl = texture(source, reflectionUV).g;
+        float bRefl = texture(source, reflectionUV - vec2(aberration, 0.0)).b;
+
+        vec4 reflectionColor = vec4(rRefl, gRefl, bRefl, 1.0);
+
+        // Blend reflection with glass effect
+        glassColor = mix(glassColor, reflectionColor, edgeMask * ubuf.edgeReflectionStrength);
+    }
+
+    // Simple glass overlay enhancement
+    vec2 centeredUV = (uv - 0.5) * 2.0;
+    float fresnel = pow(1.0 - abs(dot(normalize(vec3(centeredUV, 1.0)), vec3(0.0, 0.0, 1.0))), 1.5);
+
+    // Add subtle white tint and fresnel
+    glassColor.rgb = mix(glassColor.rgb, vec3(1.0), 0.02 + fresnel * 0.03);
+
+    fragColor = glassColor * ubuf.qt_Opacity;
 }