Tue, 24 Oct 2017 18:55:19 -0400 nemo w is in pixels, so presumably this needs to be *4
Tue, 24 Oct 2017 18:28:59 -0400 nemo use pitch for surfaces, land_width x2 since 16 bit
(0) -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 tip