Growth animation with velocity data

[ldotchopz]

Ok, after more then hour trying, I think I finally cracked it.

I couldn't find a way to link particles on spline vertices (if someone knows a way, please share it), so the only solution is to make spline as mesh object, and then link particles to mesh vertices or polygons.
However, when you apply some mesh modifiers (Tyspline mesh, extrude... etc) after all the bends animation, the mesh topology changes over time, so it doesn't have constant polygon number.
Because of that, It makes it impossible for particles (or other meshes) to follow initial object deformations with object bind operator, or skinwrap, or TyParticle Skin, because , as I said, the topology is constant changing in original mesh.

The solution is very simple.
Just move TySpline Mesher or extrude modifiers (or any modifiers that turns splines into mesh) BELLOW all Bends operators.
That way, the bends are now deforming geometry (not splines) and topology remains constant.

Attaching a file where all is working I think in a very simple way.

Btw thanks, for the explanation of growing unfolding animation.

Cheers!

Took me 5 minutes to understand what you had done lol, its a really nice solution. Thanks for taking the time, lifesaver!