http://blogs.msdn.com/manders/archive/2008/04/06/it-s-full-of-stars-xna-2-d-shader-instancing.aspxA lot of my XNA -based programs draw many instances of the same mesh (such as RoundLines ), with each instance having different position, rotation, etc. I had been submitting these meshes to Direct3D one instance at a time, which is not great for performance.en-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/manders/archive/2008/04/06/it-s-full-of-stars-xna-2-d-shader-instancing.aspx#8396889Tue, 15 Apr 2008 10:31:48 GMT91d46819-8472-40ad-a661-2c78acb4018c:8396889Manders vs. Machine<p>Now that I've got the hang of quickly drawing lots of shapes with shader instancing , what should I draw?</p>