internal static void UnloadData()
        {
            MyActorFactory.RemoveAll();
            // many-to-one relation, can live withput owners, deallocated separately
            // MyComponentFactory<MyInstancingComponent>.RemoveAll();

            //MyVoxelMesh.RemoveAll();
            //MyDynamicMesh.RemoveAll();


            MyRender11.Log.WriteLine("Unloading session data");

            MyScene.RenderablesDBVH.Clear();
            MyScene.GroupsDBVH.Clear();
            MyClipmapFactory.RemoveAll();

            MyInstancing.OnSessionEnd();
            MyMeshes.OnSessionEnd();
            MyLights.OnSessionEnd();

            MyMaterials1.OnSessionEnd();
            MyVoxelMaterials1.OnSessionEnd();
            MyMeshMaterials1.OnSessionEnd();

            MyTextures.OnSessionEnd();
            MyBigMeshTable.Table.OnSessionEnd();

            //MyAssetsLoader.ClearMeshes();
        }
        internal static void UnloadData()
        {
            MyActorFactory.RemoveAll();
            // many-to-one relation, can live withput owners, deallocated separately
            // MyComponentFactory<MyInstancingComponent>.RemoveAll();

            //MyVoxelMesh.RemoveAll();
            //MyDynamicMesh.RemoveAll();


            MyRender11.Log.WriteLine("Unloading session data");

            // Remove leftover persistent debug draw messages
            m_debugDrawMessages.Clear();

            MyScene.DynamicRenderablesDBVH.Clear();
            if (MyScene.SeparateGeometry)
            {
                MyScene.StaticRenderablesDBVH.Clear();
            }
            MyScene.GroupsDBVH.Clear();
            MyScene.FoliageDBVH.Clear();
            MyClipmapFactory.RemoveAll();
            MyClipmap.UnloadCache();

            MyInstancing.OnSessionEnd();
            MyFoliageComponents.OnSessionEnd();
            MyMeshes.OnSessionEnd();
            MyLights.OnSessionEnd();

            MyMaterials1.OnSessionEnd();
            MyVoxelMaterials1.OnSessionEnd();
            MyMeshMaterials1.OnSessionEnd();
            MyScreenDecals.OnSessionEnd();

            MyTextures.OnSessionEnd();
            MyBigMeshTable.Table.OnSessionEnd();

            MyPrimitivesRenderer.Unload();

            //MyAssetsLoader.ClearMeshes();
        }