Gallium3D: a short explanation where it fits in
There is quite some information flowing around regarding Gallium3D. Tungsten Graphics has for example a project wiki page and there are of course talks and presentations available.
However I was recently asked by Max what Gallium3D is and tried to fit it into a short and handy answer:
Currently Mesa3D implements the specifications of the OpenGL API on Linux. Mesa3D has backends for each hardware driver type, so implementing parts of the API again and again for each driver.
Gallium3D will now hop in by being the only backend Mesa3D needs to focus on. At the same time Gallium3D will also provide a single API to the driver developers: they only need to produce one driver, no matter if DirectX, OpenGL or OpenVZ is used (yes, GAllium3D could even help on Windows). This makes developing drivers for new device classes (OpenVZ is interesting for example for mobile phones) much easier.
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