OBJ Loader

Currently breaking on a default Blender OBJ file export because of inconsistent number of coordinates per face.

Signed-off-by: Seth Battis <SethBattis@stmarksschool.org>
Identity Coordinate

Added one coordinate to each face missing its W coordinate.

Signed-off-by: Seth Battis <SethBattis@stmarksschool.org>
Sourcing

Added URL of original demo code in comments.

Signed-off-by: Seth Battis <SethBattis@stmarksschool.org>
Merge branch 'master' of github.com:smcs/adv-topics-demos