Cartoon tree

                                                          Rigging a cartoonic tree
This was a fairly simple rig compared to the previous ones(especially the book rig).

The Trunk was rigged first using joints and skinned and ik spline was used.

A volume preservation formula was used to maintain the volume of the trunk when it was bent or stretched

joint scale ratio = current length/default length

The current length of the trunk was calculated by the curve info node,which can be accessed by the script

arclen-ch-true   ('ch' is construction history)


The leaves were rigged using joints and ik spline was used. A curve was also created for each leaf
for adding the dynamic simulation using  ndynamics.

All the curves of the leaves were selected and were given dynamic simulation by going to
ndynamics -> nhair-> make selected curves dynamic

Master control as well as controls for the trunk and for  dynamic simulation of leaves were created.

  Here are some screenshots below
    

                                                                        

                                                            playblast

Thanks and comments are welcome and appreciated