unity-spline-extrusion

A simple script that extrudes a mesh along a Spline in Unity

How it works

For a deeper explanation of how this script works, see my Medium Article.

How to use this script

You can simply download the two .cs files into your Unity Project.

The included scripts use Unity's new Splines package (UnityEngine.Splines).

To extrude a mesh along a spline, follow these steps:

1. Create a template mesh that the extruded mesh will be based on. A template mesh must be a 2D shape extruded along one axis (only tested using Z axis!). More info.
2. Attach the SplineMeshExtrude script to a gameobject that also contains a Spline.
3. Set your template mesh under the extrusion template mesh field.
4. Select the extrusion axis of your template mesh under the extrusion axis field. (only tested using Z axis)
5. If you want the mesh to have smooth shading, check the smooth faces box. For flat shading, uncheck the box.
6. If you want the mesh to only allow rotation about the world up (Y) axis, check the use world up box. To allow 'twisting' around the spline, uncheck the box.

Enjoy!