Some L-Systems Terminology

F - move forward and create geometry
H - move forward half the length and create geometry
G - move forward but don't record a vertex distance
f - move forward but don't create geometry
h - move forward half a length but don't create geomety
T(g) - apply gravity
+(a) - turn right a degrees
-(a) - turn left a degrees
^(a) - pitch down
&(a) - pitch up
/(a) - roll counter-clockwise
\(a) - roll clockwise