# Averaging Vertex Normals of a Brep

**URL:** <https://discourse.mcneel.com/t/averaging-vertex-normals-of-a-brep/175010>\
**Category:** Grasshopper\
**Tags:** windows\
**Created:** [February 6, 2024, 12:32pm UTC](https://discourse.mcneel.com/t/averaging-vertex-normals-of-a-brep/175010 "2024-02-06T12:32:34Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![Joseph\_Oster](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/joseph_oster/32/549124_2.png) [@Joseph\_Oster](https://discourse.mcneel.com/u/Joseph_Oster)\
**Post date:** [February 6, 2024, 2:41pm UTC](https://discourse.mcneel.com/t/averaging-vertex-normals-of-a-brep/175010/12 "2024-02-06T14:41:39Z")

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I’m not sure I did this correctly? Or whether it matters much?

 ![vertex_normal_2024Feb6c](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/a/e/4/ae4bd8872e56d8e6541ac08768c18d1f7870ab71.png)  
[vertex\_normal\_2024Feb6c.gh](https://discourse.mcneel.com/uploads/short-url/cgj1CNxtldypNYycjkCzGPGDV2n.gh) (67.1 KB)

[As suggested by @laurent\_delrieu](https://discourse.mcneel.com/t/finding-normal-direction-at-intersection-of-a-polyhedron/149155/18), the white group attempts to “ponderate” by area, meaning multiply surface normal vectors by surface area before getting the average for each vertex.

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_[View the full topic](https://discourse.mcneel.com/t/averaging-vertex-normals-of-a-brep/175010)._