The new catalyst driver now exposes the ARB_instanced_arrays extension. I haven’t had the opportunity to test it yet since my target platform is Nvidia right now.
The surprising thing, however, is that the latest Nvidia drivers do not expose this extension string (at least on the GTX 280). In the extension specification, the only GPU vendor contribution is from “Michael Gold, NVIDIA” so I find this very odd.
Does anybody have any idea how that can be? Is it only present on the Quadro line of cards?