diff --git a/shaders/darkclouds.wgsl b/shaders/darkclouds.wgsl
index 0de4301..fb9f63e 100644
--- a/shaders/darkclouds.wgsl
+++ b/shaders/darkclouds.wgsl
@@ -1,3 +1,4 @@
+//adapted: https://twigl.app/?ol=true&ss=-NNIajM4aEzy75lqtAUd
 const PI: f32 = 3.141592653589793;
 struct TimeUniform {
     time: f32,
@@ -81,4 +82,4 @@ for (var j: i32 = 0; j < 45; j = j + 1) {
     col = (vec3<f32>(0.5, 0.0, 2.1) * colorOffset + flowColorChange + 4.5 * flowIntensity) *
           ((0.5 * N.x * 0.5 * N.y) + .0015 / length(1.0 * N));
     return vec4<f32>(col, 1.0);
-}
\ No newline at end of file
+}