What are XR, VR, MR, and AR?
Before we can begin discussing best practices for VR, MR, and AR, we should clarify the definition of XR, VR, MR, and AR.
You may notice, if you look ahead on this chapter, that there are no sections titled Designing UI for XR. That is because XR encompasses VR, MR, and AR! It is an umbrella term. In fact, a more concise title for this chapter could have been Designing XR UI! XR includes VR, MR, and AR technologies:
Figure 3.1: Representation of XR technologies
VR experiences are perhaps the easiest to describe. They exist fully in the virtual world. The entire physical world is blocked from view, and the only thing you can see is the virtual space. This type of space can often be so immersive that the brain struggles to distinguish it from reality. Devices that facilitate VR fit over the user’s eyes to completely block out visuals in the real world. Popular devices today that support VR are the Meta (formally Oculus...