Yep, this is definitely useful. I've done this kind of work. It's much faster to build an interactive world if you can tweak everything about it while it runs and see the results instantly.
The same goes for some simulations I've worked on (and am working on). It's much faster and easier to get good results if you can see the effects of your changes in real time, as the simulation runs.
The same goes for some simulations I've worked on (and am working on). It's much faster and easier to get good results if you can see the effects of your changes in real time, as the simulation runs.