Procedural

Getting the angle between edges using Blender Geometry Nodes if several edges come out of a vertex

In the “Calculating the angle between edges using Blender Geometry Nodes” post, I was asked what to do in a more general case, when several edges come out of one vertex of the mesh? This problem can also be solved using Geometry Nodes, but the approach to the solution here is slightly different.

Calculating the angle between edges using Blender Geometry Nodes

When procedural modeling in Blender using Geometry Nodes, we often use various parameters of mesh geometry, such as the position of vertices in space, the length of edges, direction of the normals, etc. Also, quite often we need to know the angle between two adjacent mesh edges. Getting it using GN and mathematics is not difficult.