We've decided to step into a virtually real world. To understand how to draw that world, we'll need to understand exactly how to describe it.
This chapter describes how we do that in a mathematical sense. Don't worry, this is not a return to high–school math! (Well, maybe geometry. OK, so maybe a little bit. OK, maybe a lot. I'll try to make it painless.)
There are many different ways to describe the world; it is still the same world no matter how we do so. As Shakespeare said in Romeo and Juliet:
"What's in a name? That which we call a rose by any other name would smell as sweet."
In our case, interestingly, this is not so: a box described incorrectly will look totally different. You need to learn the language. Not only that, you need to learn how React VR describes the world, as different 3D graphics programs all use different numbers (scaling), directions (vectors), and rotations.
With virtual worlds, the types of software and hardware...