duh

monkstone · monkstone · commit 71173675a6f9 · 2018-12-25T16:09:19.000Z
diff --git a/contributed/library/branch3D/rotator.rb b/contributed/library/branch3D/rotator.rb
@@ -1,4 +1,5 @@
-# Rotator module is required because rotate is not implemented for JRubyArt 3D
+# Rotator module is required because rotate is not implemented for PiCrate
+# Vec3D (below implementation based on Euler angles)
 # NB: we use quaternions in ArcBall (avoiding possible gimbal lock)
 module Rotate
   def self.rotate_x!(vec, theta)
