4 commits

Author	SHA1	Message	Date
Thomas Friedel	c5c8ac500f	some shadow drawing now works using the backend	2019-02-22 16:38:27 +01:00
Thomas Friedel	359b52f473	more general backend fill function	2019-02-22 16:38:27 +01:00
Thomas Friedel	114b292be7	moved some more gl code into the backend	2019-02-22 16:38:27 +01:00
Thomas Friedel	1e5180dd65	started work on moving all the gl code into a backend package so that other backends can be created	2019-02-22 16:38:27 +01:00