Port of legacy Penumbra circa Clojure 1.2 to Clojure 1.8+ This is an update of Zach Tellman’s impressive penumbra library. All of the legacy cruft from clojure.contrib has been migrated or removed. Currently this is a stability release intended to get the examples working. They all compile and run, however, many of the examples that rely on shader implementations (like a bunch of the demos in test