Hi, In some cases, when i try to create a concave polyhedron, some faces doesn’t render as expected. Babylon.js Playground Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes

Yes but the ExtrudePolygon works only in a XZ plane with Y extrusion. It works for my needs with a simple “if the plane is horizontal use Extrude else use Polyhedron” : https://playground.babylonjs.com/#5XGGIC#5 , but it still particular

Concave polyhedron face

Bugs

VerandaLouis June 19, 2023, 3:43pm 3

In reference to this answer you provided, how can i do to create a “U” polyhedron like on this PG

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Concave polyhedron face

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