How to calculate normals in DX11

vvvv beta question
1

Ahoj guys! I created the geometry here, and in order to do play with lights I (suppose) should calculate the normals.
https://vvvv.org/sites/default/files/imagecache/large/images/Normals01.png

I foud this contribution gsfx-per-vertex-normals and it works BUT NOT FOR all the shapes (as you can see here)

https://vvvv.org/sites/default/files/imagecache/large/images/CalculateNormals-Renderer_2015.08.26-01.56.57.png

do you have any advice?

CalculateNormals.v4p (180.4 kB)

2

if you want the normal of the faces you have to find the center of two edges and cross product them.