odf,

OK, some faulty logic in my last post  :cursing:. If you just set the material to transparent, you won't be able to see any of the handles  :sad:. There are two solutions. Set transparent, and also set the handles to use Cartoon Display Style. This should make them visible in preview, but invisible when rendered. With this method we are relying on the small size of the alternate obj to keep it invisible. A better way is probably to use a different material in the alternate obj.