7.2.138 transform-incr

(transform-incr objetoID centerID frameID [rotate|translate|translate-scaled|scale] x y z [origin|bbox-center] [dt [smooth]])

Apply continuing movimento: construct a matriz de transformação and concatenate it with the current transform of objetoID every refresh (sets objetoID’s incremental transform). Same syntax as transform. If optional dt argumento is present, the objeto is moved at each time step such that its average movimento equals one instance do movimento per dt seconds. 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.