How do I scale instances from big to small from top to bottom without using index?

[zeroskilz]

This thread is full of good resources:

GeoTree: Procedural Trees in Geometry Nodes

And here it is, GeoTree 0.67. I wasn’t able to quite fix the problem with the branch scaling, but I did maybe possibly smooth it up a little tiny bit. Really, I’m going to need to reanalyze my entire scaling approach, since it seems to be fairly easy to break if stretched too far. As for the rest, this tree is now using Stick Power, and is thus constructed slightly differently than the previous trees, with fewer branches on average. I did leave the option to draw the leaves on the sticks to emu…

Basically you’re using the Factor from the 1st curve to control the scale of instances:

Good luck.