Yes, I have worked some years ago for Ubi Soft, as videogames programmer.
Now I work making the visual software of simulators (military and non military) and software tools to help to program this kind of software.
As regards videogames and simulators (or any kind of real-time 3d graphics)
triangles are the basic primitive for all kind of models. Quads too if your
3D engine can use them and you take care of non-flat and non-convex quads.
But perhaps this subject falls out of the original subject of this thread, and we should start a new one to talk about that, and not drive the users of the forum crazy
hehehehe.