I'm a beginner with expression. There's 2 thing I would like to do.
First of all, I did a cloth simulation(helium baloon). Now I got to apply those move to a rigged and animated caracter. I need to apply the position and the rotation of the cloth to my caracter. I would like to track my caracter on the position in 3d space of a vertex. This vertex is part of the cloth simulation.
Secondo, once I got this expression, I would like to evaluate the 3d position of a second vertex of the same cloth simulation. When those 2 evaluation are done, I got to evaluate the angle of rotation X,Y and Z(like a 3d vertex rotation tracking).
Can somebody help me? Maybe there's a way much simple to do that...