Vertices + Indices => Speckle-Py, distorted results

[jonathon]

The tldr of this is that the SpeckleMesh stores faces in the form of

[ n, v1, v2, v3, vn, … ] where n is usually 3 and the v1, v2, an d v3 are the vertex indices.

I recognised the mesh appearance on the call we had last week. I first suffered this when starting the Navisworks connector - its telltale

Object.Geometry.Mesh faces and vertices question

I have been trying to get to the bottom of why my Meshes are borked. I have a simple example and would appreciate some simple guidance. As background, I have been translating my knowledge of Mesh definition from BabyloJS and can appreciate that it would be different for Speckle. Mesh Scenario 1 (One mesh per triangle): // Triangle 1 vertices = new List<double> { 0, 0, 0, 1, 0, 0, 0, 1, 0, }; faces = new List<int> { 0, 1, 2,}; Objects.Geometry.Mesh baseMesh = new Objects.Geometry.Mesh( vertice…