You are reading this book to learn to make Virtual Reality (VR), but what is Virtual Reality?
It seems like a simple enough question, but the answer is all over the map. Most people think VR means virtually real or alternate reality.
That is not what Virtual Reality is.
I think this is because the word virtual can mean several different things. To a computer scientist, the word virtual means something that simulates the thing it virtualizes. In other words, a virtual hard drive pretends to be a hard drive.
The virtual object acts like it is real, but it isn't--frequently, its more flexible and easier to control, modify, and support than a physical object. In many ways, it is better than the physical object. ...
