> are you guys picking what normals index is supposed to represent what angle manually, using your eyes, or are you letting your algorithms do it for you automatically?

> i mean, are you using your programs to identify all instances of your 26 angles on the official voxels and seeing what indexes are actually used most frequently in those instances.
We determine the 'facing' (visibility) of the different voxels (FRONT,BOTTOM,LEFT,RIGHT,etc), and then use the analyser to see which normal goes with those facings most of the time (if you download the analyzer and play with the Koen-Index, which is actually the facing, you'll see that sometimes, there are multiple normals possible).
It's all that is possible for VXLSE - because we don't know the original 3ds angles.
I'm still improving the facings-determining code right now. It's almost perfect.