http://scottmeyers.blogspot.it/2015/12/good-to-go.html

http://www.righto.com/2015/12/reverse-engineering-arm1-ancestor-of.html

https://forums.unrealengine.com/showthread.php?84453-World-Normal-Edge-Detection-(-and-Speedpaint-Art-Style

https://www.vertexshaderart.com/art/PponkZdtktgJHhipC

article : http://simonschreibt.de/gat/fallout-4-the-mushroom-case/