public static MeshGeometry3D ToMeshGeometry3D(this DMesh3 mesh) { var vertices = mesh.Vertices(); var uiPoints = new Point3DCollection(mesh.VertexCount); var indexes = mesh.TriangleIndices(); var uiIndexes = new IntCollection(); foreach (var v in vertices) { uiPoints.Add(v.ToPoint3D()); } foreach (var i in indexes) { uiIndexes.Add(i); } return(new MeshGeometry3D() { Positions = uiPoints.ToVector3Collection(), TriangleIndices = uiIndexes }); }