a: anim on/of | <,>: speed | TAB: time dir | |
t,T: trace mode (0-6) | [,]: trace length | x: add markers | X: free markers |
w: binary vorticity | g: (picked) partic referential | {,},= change partic | (,),= partic size |
+: add vortex | -: del vortex | s: change w sign | -: saturate w |
l,L: tune all/vortices/markers/cur | f: sky color | F: bg field |