GitHub - blackears/blenderNormalBrush: Blender addon that allows you to adjust normals with a brush stroke
![What is the exact correct normal map interpretation for Blender? - Graphics and GPU Programming - GameDev.net What is the exact correct normal map interpretation for Blender? - Graphics and GPU Programming - GameDev.net](http://i.imgur.com/4O61kwB.png)
What is the exact correct normal map interpretation for Blender? - Graphics and GPU Programming - GameDev.net
Is it possible to select normals in Blender based on the direction they are facing, so they can be flipped? - Quora
![Mesh exported from blender showing normals opposite of that in Blender - Character & Animation - Epic Developer Community Forums Mesh exported from blender showing normals opposite of that in Blender - Character & Animation - Epic Developer Community Forums](https://d3kjluh73b9h9o.cloudfront.net/original/4X/8/e/c/8ecd2a87a0621512cdd6a021693996ee63484fb9.jpeg)