(transform-incr objectID centerID frameID [rotate|translate|translate-scaled|scale] x y z [origin|bbox-center] [dt [smooth]])
dtargument is present, the object is moved at each time step such that its average motion equals one instance of the motion per
dtseconds. E.g. (transform-incr World World World rotate 6.28318 0 0 10.0) rotates the World about its X axis at 1 turn (2pi radians) per 10 seconds.