After Effects / Motion Graphics Question

Greetings. I’m not sure if this belongs in ‘random’ or not…but I couldn’t find a better place to put this.

My question…have you guys seen the motion graphics effect that I best describe as a ‘growing vine’ effect? Basically it looks like a curved path that ‘grows’ or draws itself out, almost like its being masked, but as it goes, smaller little vines or leaves or flowers or whatever grow out of the vine. I have seen this more times than i can count, but now that I look around for examples I cant seem to find any. I’m hoping someone knows what i’m talking about so i dont have to find an example, but if this is unclear, let me know and i’ll hunt one down.

So basically I want to know how to create this effect. Ive heard that it is done thru a plugin, and that its really easy. I kinda hope thats not the case because it looks really cool, and i’ll lose alot of respect for it if its plugin based, but either way, i’d really love to be pointed to A)a plugin or B)a tutorial on how to do it. Part of me thinks it can be done with intense masking, but the way that items ‘grow’ off the vine make that seem like quite the mountainous task.

okay…hope that makes sense. thanks everyone.

df