If you take this algorithm (but at 50% w/ 3 points for a cubic spline) you can extend this idea to the third dimension for subdivision surfaces! https://www.wi

If you take this algorithm (but at 50% w/ 3 points for a cubic spline) you can extend this idea to the third dimension for subdivision surfaces! https://www.wikiwand.com/en/Catmull%E2%80%93Clark_subdivision_surface https://www.wikiwand.com/en/Catmull%E2%80%93Clark_subdivisio...