This is an example of algorythm based modeling in Grasshopper plugin in Rhinocerros 5.0 CAD software. Whole algorythm works on simple rules of “Turtle logic”, which gives the virtual machine orders where to branch, at which angle and length in 2D plane or 3D space. This logic structre defined by algorythm and few variables eg. angle or length can also run different number of discrete times, called generations. Generations does change the virtual age of the plant from the young and simle to the old and more complex looking.