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Normals can be one of the most daunting technologies for new artists to grasp. Here I try and break it down with basic visuals rather than long winded descriptions about light hitting different angles.
Lesson 02 'Normals - first steps'
First of all one of my favourite tutorials for this is,
http://www.svartberg.com/tutorials/article_normalmaps/normalmaps.html
It's practically what I'll be doing here but will be breaking it down to it's core. If you want to find out more definitely check that out as well as the single greatest resource for understanding normal maps here,
http://wiki.polycount.com/NormalMap?action=show&redirect=Normal+Map#SGAHE
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