diff --git a/manimlib/shaders/inserts/NOTE.md b/manimlib/shaders/inserts/NOTE.md
index 45f0c138..a08ccfe2 100644
--- a/manimlib/shaders/inserts/NOTE.md
+++ b/manimlib/shaders/inserts/NOTE.md
@@ -4,4 +4,4 @@ There seems to be no analog to #include in C++ for OpenGL shaders.  While there
 
 with the code from one of the files in this folder.
 
-The functions in this file often include reference to uniforms which are assumed to be part of the surrounding context into which they are inserted.
+The functions in this file may include declarations of uniforms, so one should not re-declare those in the surrounding context.
diff --git a/manimlib/shaders/inserts/rotate.glsl b/manimlib/shaders/inserts/rotate.glsl
deleted file mode 100644
index 920da309..00000000
--- a/manimlib/shaders/inserts/rotate.glsl
+++ /dev/null
@@ -1,19 +0,0 @@
-mat3 rotationMatrix(vec3 axis, float angle) {
-    axis = normalize(axis);
-    float s = sin(angle);
-    float c = cos(angle);
-    float oc = 1.0 - c;
-    float ax = axis.x;
-    float ay = axis.y;
-    float az = axis.z;
-    
-    return mat3(
-        oc * ax * ax + c,      oc * ax * ay - az * s, oc * az * ax + ay * s,
-        oc * ax * ay + az * s, oc * ay * ay + c,      oc * ay * az - ax * s,
-        oc * az * ax - ay * s, oc * ay * az + ax * s, oc * az * az + c
-    );
-}
-
-vec3 rotate(vec3 vect, float angle, vec3 axis){
-    return rotationMatrix(axis, angle) * vect;
-}