work on model loading, fixing a stupid bug in material.cpp
refactor
some more refactoring
done with refactoring for now..
adding some comments
work on shading models
cleanup
adding some comments
adding verbosity flag
cleanup
refactor
merge all demos into a single one
two sided property is a geometry state (needed for shadow mapping to
work for these objects)
handle polygon mode correctly in shadow maps
fine tuning shadows a bit
minor changes
dummy
rename video class to media player, because it plays any media vlc can
play. adding methods for controling volume of media. adding flag
indicating if audio/video data required for a file
cleanup
Revert "cleanup"

This reverts commit 1ecc0bc63c9974541f39e1586886c0a3a6ad78f2.