Depth Peeling Demo

[MicBosi]

Create a sample implementation of the (dual?) depth peeling algorithm for order independent transparency rendering.

References:

http://research.microsoft.com/pubs/70307/tr-2006-81.pdf

http://on-demand.gputechconf.com/gtc/2014/presentations/S4385-order-independent-transparency-opengl.pdf

http://developer.download.nvidia.com/SDK/10/opengl/src/dual_depth_peeling/doc/DualDepthPeeling.pdf

http://www.eng.utah.edu/~cs5610/handouts/order_independent_transparency.pdf