Quickly import and work with the trees from the popular TheGrove3D Blender Plugin.

https://vimeo.com/showcase/5860456/video/533798743

Using the extracted Spine of the tree and Setup Vellum

https://vimeo.com/showcase/5860456/video/534737765

Getting points to blender for the multi grove growth.

https://vimeo.com/showcase/5860456/video/539959898