Keywords: opengl linked list
http://on-demand.gputechconf.com/gtc/2014/presentations/S4385-order-independent-transparency-opengl.pdf
http://blog.icare3d.org/2010/07/opengl-40-abuffer-v20-linked-lists-of.html
http://www.openglsuperbible.com/2013/08/20/is-order-independent-transparency-really-necessary/
http://www.opengl-tutorial.org/intermediate-tutorials/tutorial-10-transparency/