With vMix, as with comparable solutions, you have been able to switch in 4K for a few years, but if you set your workspace as HD and connect a 4K/UHD video signal, with a supported 4K video capture ...

vMix is also compatible with third-party sets. You can use virtual sets to create your own compositions. I use the blank set shown top, left in Figure 8 to create the picture-in-picture webinar ...