I used one for a while called Frameshop Pro. It was a toy. The process for getting the image into the computer (as well as the frame and mat samples) would have required a dedicated full-time employee. The results, viewed on the monitor, were ambiguous at best. When printed, they got worse.
I suspect that the hardware required to make previsualization viable may be out of reach for most of us at this time.
If you are young, this may become a reality in your lifetime, but don't hold your breath.