# SeaShell Mesh from point array? extrude along path?

**URL:** <https://discourse.threejs.org/t/seashell-mesh-from-point-array-extrude-along-path/9622>\
**Category:** Questions\
**Tags:** geometry\
**Created:** [September 13, 2019, 2:50am UTC](https://discourse.threejs.org/t/seashell-mesh-from-point-array-extrude-along-path/9622 "2019-09-13T02:50:58Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![hofk](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.threejs.org/hofk/32/44944_2.png) [@hofk](https://discourse.threejs.org/u/hofk)\
**Post date:** [September 13, 2019, 12:58pm UTC](https://discourse.threejs.org/t/seashell-mesh-from-point-array-extrude-along-path/9622/4 "2019-09-13T12:58:36Z")

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The addon [Addon to create special / extended geometries](https://discourse.threejs.org/t/addon-to-create-special-extended-geometries/1855) also shows how to create different more complex geometries. If you have the formulas/algorithm, it’s just a little work to get the result. 🙂

see GitHub [hofk (Klaus Hoffmeister) · GitHub](https://github.com/hofk)

from THREEp: [examples THREEp](https://hofk.de/main/threejs/sandboxthreep/examplesTHREEp%20r90.html)

![0015_clamshell](https://canada1.discourse-cdn.com/flex035/uploads/threejs/original/2X/c/cc7d2035a79697848ab046f93b5e61643c82af80.png)

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