Mip-Mapping

I added mipmapping support to the software renderer for my GPGPU project.

Waiting in line...

I updated the simple 3d engine running on the GPGPU I've been hacking on to use a more sophisticated runtime. The original incarnation of the engine used a single strand to perform all of the work serially. That won't scale up to multiple cores and performs suboptimally as utilizing hardware multi-threading is essential to get good performance on this architecture.