Why doesn X-Plane support multiple monitors on a single computer?
X-Plane uses up pretty much all the compute resources available on a single machine. A modest amount of that goes to the flight model, but most of the compute resources are used by the graphics. (On the other hand, as of V8.60 all aircraft use a full flight model, so putting many aircraft in the sky will run up the cpu load quickly.) Most of OpenGL is handled in the video card, but there is still plenty of work left over for the CPU. Yes, there are dual processor systems around, as well as systems with two video card slots, and X-Plane doesn’t do a lot with multi-threading (yet). Dual processor systems haven’t been around long enough to motivate the X-Plane developers to support multiple views within a single copy of X-Plane. People have run multiple copies of X-Plane on a single machine, each with its own display. However, you need a really powerful multiprocessor system to do this, and running multiple instances of a single application and having them network with each other using lo
