You could have downloaded Acetate 0.9.9 for Mac from our software library for free. The most frequent installer filenames for the application include: acetate_0.9.9.zip and Acetate 0.9.9.zip etc. This free software for Mac OS X is an intellectual property of Dominic Hamon, StripySock. The bundle identifier for Acetate for Mac is com.stripysock.Acetate. The software belongs to Design & Photo Tools. The most popular version of the program is 0.9.
From the developer:
Acetate is a tool for Mac OS X written for animators to track arcs and joints while animating by simulating a layer of Acetate attached to the screen.
It includes a simple set of drawing tools that allow a user to draw over the top of any application.
Other uses include annotating presentations, or analyzing movement in a video. Or just doodling.
You may want to check out more software for Mac, such as Smith Chart for Mac, Movie2Shot or TVPaint Animation, which might be related to Acetate.