Learning PBR ( Physical based rendering )
Learning resources :
http://marcinignac.com/blog/pragmatic-pbr-intro/ http://marcinignac.com/blog/pragmatic-pbr-setup-and-gamma/ http://marcinignac.com/blog/pragmatic-pbr-hdr/
http://cedricpinson.com/ParisWebGL2014/ https://www.youtube.com/watch?v=poS6_oVEI4g