我试图创建goldbergs多面体，但代码，应该画它在我的屏幕上工作太慢（约22秒，以绘制第6级的detalization）

Stopwatch sw = new Stopwatch();

        var hexes = sphere.hexes.ToArray();

        sw.Start();

        for (int j = 0; j < hexes.Length; j++)
        {
            MeshGeometry3D myMeshGeometry3D = new MeshGeometry3D();

            Vector3DCollection myNormalCollection = new Vector3DCollection();

            foreach (var verts in hexes[j].Normals)
            {
                myNormalCollection.Add(verts);
            }

            myMeshGeometry3D.Normals = myNormalCollection;

            Point3DCollection myPositionCollection = new Point3DCollection();

            foreach (var verts in hexes[j].Normals)
            {
                myPositionCollection.Add(new Point3D(verts.X, verts.Y, verts.Z));
            }

            myMeshGeometry3D.Positions = myPositionCollection;

            Int32Collection myTriangleIndicesCollection = new Int32Collection();

            foreach (var triangle in hexes[j].Tris)
            {
                myTriangleIndicesCollection.Add(triangle);
            }

            myMeshGeometry3D.TriangleIndices = myTriangleIndicesCollection;                

            Material material = new DiffuseMaterial(
                            new SolidColorBrush(Colors.Black)); ;

            if (switcher)
            {
                material = new DiffuseMaterial(
                            new SolidColorBrush(Colors.BlueViolet)); 
            }

            switcher = !switcher;

            GeometryModel3D model = new GeometryModel3D(
                myMeshGeometry3D, material);

            myGeometryModel.Geometry = myMeshGeometry3D;

            myModel3DGroup.Children.Add(model);

            myModel3DGroup.Children.Add(myGeometryModel);                
        }

        sw.Stop();

我试着让循环并行，但是myGeometryModel和myModel3DGroup在主线程中，所以我不能修改它们。