I've watched a video on how the per-pixel lighting rendering is done with unreal.

The video says

1) Build a high res version of the mesh

2) Build a low res version of the same mesh

3) Calculate the difference and create a normal map based on that

4) The normal map is used to texture the low res version of the mesh

Are there any more detailed readings I can take about how this is done?

Thanks

Jack

22 minutes ago, lucky6969b said:

Are there any more detailed readings I can take about how this is done?

http://wiki.polycount.com/wiki/Normal_map

It should take 1-2 years to learn how to perfect the baking process.