2 files changed, 57 insertions, 10 deletions
diff --git a/themes/src/_shaders/sun.frag b/themes/src/_shaders/sun.frag
index 8463e06..028c0c2 100644
--- a/themes/src/_shaders/sun.frag
+++ b/themes/src/_shaders/sun.frag
@@ -1,5 +1,43 @@
 varying lowp vec4 VertexColor;
+varying lowp vec2 TexCoord;
+uniform lowp float time;
+
+// Simple noise function for edge distortion
+lowp float noise(lowp vec2 p) {
+    return sin(p.x * 10.0 + time) * cos(p.y * 10.0 + time * 0.5) * 0.5 + 0.5;
+}
 
 void main() {
-    gl_FragColor = VertexColor;
+    // TexCoord is now normalized: center is (0,0), edges are at distance ~1
+    lowp float dist = length(TexCoord);
+
+    // Add animated noise to the edge
+    lowp float angle = atan(TexCoord.y, TexCoord.x);
+    lowp float wave = sin(angle * 8.0 + time * 2.0) * 0.05 + sin(angle * 4.0 - time * 1.5) * 0.03;
+    lowp float noiseValue = noise(TexCoord + time * 0.1) * 0.02;
+
+    // Create soft edge using smoothstep - ensure fade reaches zero at the actual edge
+    lowp float innerEdge = 0.2;
+    lowp float outerEdge = 1.0;
+    lowp float alpha = 1.0 - smoothstep(innerEdge, outerEdge, dist);
+
+    // Apply wave distortion to the edge
+    alpha *= 1.0 - smoothstep(0.85 + wave + noiseValue * 2.0, 1.0, dist);
+
+    // Make edges even more transparent with additional fade
+    alpha = alpha * alpha * alpha;
+
+    // Add slight glow effect at the edge
+    lowp float glow = smoothstep(0.5, 0.8, dist) * (1.0 - smoothstep(0.8, 1.0, dist));
+
+    // Create orange gradient from center
+    lowp vec3 orangeColor = vec3(1.0, 0.5, 0.1);
+    lowp float centerGradient = smoothstep(0.6, 0.0, dist);
+    lowp vec3 baseColor = mix(VertexColor.rgb, orangeColor, centerGradient * 0.6);
+
+    // Mix in the glow with a brighter color
+    lowp vec3 glowColor = baseColor * 1.3;
+    lowp vec3 finalColor = mix(baseColor, glowColor, glow * 0.5);
+
+    gl_FragColor = vec4(finalColor, VertexColor.a * alpha);
 }
diff --git a/themes/src/_shaders/sun.vert b/themes/src/_shaders/sun.vert
index 76150f0..5ed77d7 100644
--- a/themes/src/_shaders/sun.vert
+++ b/themes/src/_shaders/sun.vert
@@ -1,13 +1,22 @@
 
-attribute vec2 position; 
-attribute vec4 color; 
-attribute mat4 vMatrix; 
-uniform mat4 projection; 
-uniform mat4 model; 
+attribute vec2 position;
+attribute vec4 color;
+attribute mat4 vMatrix;
+uniform mat4 projection;
+uniform mat4 model;
 varying lowp vec4 VertexColor;
+varying lowp vec2 TexCoord;
 
-void main() { 
-    vec4 fragmentPosition = projection * model * vMatrix * vec4(position.x, position.y, 0, 1); 
-    gl_Position = fragmentPosition; 
-    VertexColor = color; 
+void main() {
+    vec4 fragmentPosition = projection * model * vMatrix * vec4(position.x, position.y, 0, 1);
+    gl_Position = fragmentPosition;
+    VertexColor = color;
+    // Normalize the position - the center is at (0,0) and edge vertices are at distance 'radius'
+    // We want TexCoord to be in the range roughly [-1, 1] at the edges
+    lowp float maxDist = length(position);
+    if (maxDist > 0.1) {
+        TexCoord = position / maxDist;
+    } else {
+        TexCoord = vec2(0.0, 0.0);
+    }
 }