Our render is now correct thanks to our visibility algorithm, but it definitely lacks polish. How can we improve the quality ? First we should have one terrain element covering one pixel or less horizontally (we don't have that fine grain for vertical resolution because it's hard to determine beforehand how it will be expanded on the screen). Then we can use supersampling and use a better sky model, I'll detail those below.

This is the third part of the Voxel terrain engine article. It follows the second part called Voxel terrain - Visibility, occlusion.