shans/web-anim-js — pull request #7 by shans (2012-11-26 12:15:48+00:00)
Title: Add a compositor stage.

This branch previews adding a compositor stage to the polyfill. A couple of caveats that we probably want to fix before merging:

(1) "add" operation is basically unimplemented
(2) "clearing" the animated value from an SVG attribute won't work

I mainly wanted to get feedback at this stage on whether people are happy with the compositor looking like this.