Click/tap to make one dot. Hold to make many.
Keyboard Shortcuts
MouseAim ray
Click / SpacePlace dot
Hold / Hold SpaceSpray dots
↑↓←→Nudge aim
Shift+↑↓←→Fine nudge
T / EscTrace terminator / stop
LToggle labels
GToggle ground
CClear dots
HToggle controls panel
Right-dragOrbit camera