I created a cylinder target for a can. Tracking works, and I was able to place a 3D cylinder on top of it.
Now I wanted to put this cylinder into "flames", by applying a flame particle system. The particle system already follows the cylinder target, however, it does not obey its z orientation, i.e. it won't shrink or grow depending on how far away the cylinder is. Instead it keeps its fixed initial size.
Is there a way to tell a particle system to grow with the size of its parent container, so it would always exactly match the size of the cylinder target?