Flex Road Generator
How to use this blend file in new project.
This is a modifier setup, so you need to import all NodeTrees from the .blend file and then watch the tutorial.
Or use Asset Browser(Read the doc).
How do I properly convert to mesh? Whenever I try to convert a curve to a mesh, some things disappear.
You have to first realize instances using modifier and then convert to mesh.
Can I control poly count or tris for the assets created?
Yes, you can control curve sample length and spline type for custom curve meshes.