Wed Mar 18, 2020 11:00 pm
I may be mistaken, but I think that the noise() function isn't a part of Lua itself, and thus may not be accessible in simple expressions. It might be accessible only in CustomTool and the Expression Modifier. You can substitute a reference to another control that has either a Perturb or Shake modifier on it to get similar results, though.
Bryan Ray
http://www.bryanray.name
http://www.sidefx.com