Lots of broken things - cylindrical projection

BROKEN:
- rotation is completely broken even for Z. Probably because of the new
Length method
- plane Slicing is completely broken. Needs to get a new method that
works correctly of length.

FIXED SINCE LAST COMMIT:
-  Fixed Alpha / Blendmodes
- Fixed Inital Offset, is now the base of the cylinder, length extends
from that value