I've been looking at Virtual Sets and have created my own, however I'm struggling with altering the UV map to mirror the object I'm overlaying it with (such as a TV screen).

I found a sample on vMix website, however if I bring it in to photoshop to say resize it and then save as a png the max bit depth photoshop will output is 42, which shows the image as pixellated when you push an image or video to it.

On vMix website it says the UV Maps must be 64 bit depth to work, however I cannot see anyone on youtube editing them or outputting at 64 bit depth.

Any ideas how I can create my own UV maps at 64 bit depth?

Thanks