get rid of debug code on main screen
Adjust camera parameters, zoom in a bit

Don't use such a super-wide lens so things aren't so tiny
Skip rendering unexpected null meshes
expose dist3d() in matrix code
skip rendering too-far-away entities
work on torpedo model
Do not give nebulae the starbase mesh
Adjust camera some more
Make default ship model be cruiser
do not show things behind the camera
Add (cheezy) starfield to main view
update TODO
make explosions 3d
Add color to 3d display
fix explosion z velocity
tweak torpedo model
Make explosions better
make explosions mo betta
make debris spin faster
Add frame back