Problems Making A Tree Grow From Bottom Up (Including Branches)?

How Do I Make Nurbs Tree Grow From Bottom Up? Using a Nurbs Path to create a tree. I want the tree to grow from bottom up naturally.

Q. How do I make tree grow from the bottom up without having to keyframe every branch. I want to use the Slider in the Curve Settings to grow the tree from the bottom up including the branches. When I animate it, currently the branches start growing at the same time the tree trunk starts growing.

I tried “Joining” The branches but that didn’t work with Nurbs Paths and they still need to be keyframes separately then. I tried creating a tree using polys and then converting the polys to a Spline but when I animated it the branches still grew at the same time as the tree trunk (I need the tree to grow/animate from the bottom up including the branches)

See in my example below. When I animate the curves (tree trunk and branches) they all grow at the same time. This is not what I want. I want the tree to grow Naturally from the bottom up.

You could create each branch as separate objects and attach them to points along the main trunk starting at 0 scale, then use a driver to change their size and length corresponding to the growth of the trunk.

You can animate curves using either Bevel Factor - resolution Start/End or by defining the Taper of your tree curve using another curve. You would then animate this second curve with a Hook Modifier. This approach has the benefit of allowing you to grow the shape with a point, whereas the Bevel Factor will give you a cut off end.

Thank you both. Anthony Forwood just looked at “Drivers” looks like a very cool way to do it. I am still unsure how to get the tree to grow at the same time. Would you model the tree using a Nurbs Path, then join them together. Then select the main trunk of the tree and add a single “driver” to each branch?

3pointEdit I am not sure how “Hooks” will this so I will have to do some research. Thanks.

Hi, I really need some help with this please. I appreciate it.

So I am trying to grow the branch with the tree trunk using “Hooks”

  1. I selected tree trunk, then shift selected the branch.
  2. I then went into edit mode and selected the vertex at the base of the branch
  3. I then selected (CTRL + H) > Hook to selected Object
  4. When I select the Tree Trunk in the spline settings and grow it the branch does nothing???

Can someone please upload a simple test to show me how this works. I really appreciate it.

Posted it twice by accident. I appreciate any help.

try the build modifier, it can work well