Elggetto Posted May 28, 2021 Share Posted May 28, 2021 (edited) Hi! I would like to select only concave edges (green edges on picture). Let's say I have a cube, with a small extrusion on one face. I know I can select edges by angle, but it selects concave AND convex edges. Any idea how to do it procedurally? Thanks! Edited May 28, 2021 by Elggetto Removed picture Quote Link to comment Share on other sites More sharing options...
Noobini Posted May 31, 2021 Share Posted May 31, 2021 c'mon man, upload you file. Why ? coz if my mock up file doesn't match yours, then you've just wasted my time. seriously, what's the worry ? losing IP of a box ? and when you say concave, you meant convex right ? Save all confusions and upload the file. selectedgesconcavity.hipnc Quote Link to comment Share on other sites More sharing options...
konstantin magnus Posted May 31, 2021 Share Posted May 31, 2021 Hi Elggetto, you could combine curvature with edge angles from group SOP. convex_concave.hipnc Quote Link to comment Share on other sites More sharing options...
Aizatulin Posted May 31, 2021 Share Posted May 31, 2021 Hi, you can also loop over the edges. If an edge is convex, the dot product of the direction between the center of the first and second (incident) primitive with the normal of the first primitive should be less than zero. edges_convexity.hipnc 1 Quote Link to comment Share on other sites More sharing options...
Elggetto Posted June 4, 2021 Author Share Posted June 4, 2021 Thanks everyone. I checked all solutions and it's exactly what i'm looking for. @Noobini Sorry, will do next time. First time here and I didn't know sharing files was the norm here. Thanks! Quote Link to comment Share on other sites More sharing options...
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