Maya Tutorial: Making dynamic tornadoes with particles

Because of the need to view some information, made a dynamic tornado, first look at the effect.

First draw a curve, do not divide too many segments, it is built from the following figure. The role will be mentioned below. and changed the curve to axis.

Make a skeleton and give the skeleton a line ik that binds the curve to the bone. Use bone movement to drive curve motion. We can use the cluster deformation to do, how to do everyone will be. To make each of the children into the stem skeleton, facilitate the overall movement. As shown in figure