Eric Anholt gave a great talk about building an open source OpenGL driver for the Raspberry Pi at Linux Conf Auckland 2015 this week. One of the challenging things with using the GPU on the Raspberry Pi is that it relies on a closed source driver so using it to its full potential can be tricky. However Eric talks about how his experience working on drivers for Intel’s graphics processors is helping him write an open source OpenGL driver for the Pi. The talk goes into a lot of advanced details with writing graphics drivers, like how to compile and optimize OpenGL code into instructions that the GPU will execute. Overall it looks like great progress is being made and in the not too distant future it will be much easier to port OpenGL and other 3D acceleration tools to the Raspbery Pi!
Also be sure to check out other talks from the conference, you can find videos of all the talks on the Linux Conf Auckland 2015 YouTube page.