ImageEngine/gaffer — pull request #126 by johnhaddon (2013-04-04 19:30:49+00:00)
Title: Added a Prune node.

This removes entire branches from the scene according to a filter. Factored out the "having a filter" from SceneElementProcessor into a new FilteredSceneProcessor base class to allow Prune to shared the filtering logic (acceptsInput etc). Addresses issue #70.