input
	tipTo   = [pos, ori]
	tipFrom = [pos, ori]

data
	cursor  = [0, 0, 0]

frame
	vector 	= tipTo.pos - tipFrom.pos
	length	= vec.length
	dir 		= vector / length

	stretch = max(length - deadzone, 0)
	cursor  = to.pos + dir * stretch * strength

design
	deadzone = 0.1
	strength = 3