https://moltengl.com/moltengl/

(finally!) online: http://josiahmanson.com/research/ggx_filtering/

http://rasmusbarr.github.io/blog/realtimegi-pt1.html

http://bitsquid.blogspot.jp/2016/07/volumetric-clouds.html

http://www.nvidia.com/object/siggraph2016.html "Rendering Specular Effects" http://on-demand.gputechconf.com/siggraph/2016/presentation/sig1666-anton-kaplanyan-rendering-highly-specular-materials.pdf "HDR PROGRAMMING" http://on-demand.gput…