void InstancingDemo_Reloading ( object sender, EventArgs e )
{
SafeDispose( ref factory );
us = Content.Load<Ubershader>("test");
factory = new StateFactory( us, typeof(UberFlags), Primitive.TriangleList, VertexInputElement.FromStructure( typeof(Vertex) ), BlendState.Additive, RasterizerState.CullNone, DepthStencilState.None );
tex = Content.Load<Texture2D>("block" );
}