add buttn fgos and modul um

Shaders/ray.gdshader

@@ -3,11 +3,11 @@ shader_type canvas_item;
 uniform vec4 color_signal: source_color;
 uniform float turn = 0.785;
 
-const float outer_radius = 0.309;
-const float inner_radius = 0.72;
+const float outer_radius = 0.109;
+const float inner_radius = 0.82;
 const float zoom = 100.0;
 const float speed = 2.1;
-const float size = 6.0;
+const float size = 9.0;
 const float blur = 0.000001;
 const float fill_ratio = 0.03;