void Append_mesh() { if (Meshes == null || Meshes.Count == 0) { Meshes = new List <NGonsCore.geometry3Sharp.mesh.DMesh3>(); } cur_mesh = new NGonsCore.geometry3Sharp.mesh.DMesh3(MeshComponents.VertexNormals); if (ColorSourceF != null) { cur_mesh.EnableVertexColors(Colorf.White); } Meshes.Add(cur_mesh); }