NVidia HBAO+ via @LouisBavoil
- gdc2016 slide : http://developer.download.nvidia.com/gameworks/events/GDC2016/atatarinov_alpanteleev_advanced_ao.pdf
- Official : http://www.geforce.com/hardware/technology/hbao-plus/technology
- HBAO+ : https://developer.nvidia.com/sites/default/files/akamai/gamedev/docs/BAVOIL_ParticleShadowsAndCacheEfficientPost.pdf
- https://developer.nvidia.com/shadowworks
