Can anyone recommend a photo-realistic rendering extension that meets the following criteria:
I’d recommend Enscape or V-Ray. Enscape is a bit easier to learn/get started with right out of the box. V-Ray is more powerful, customizable, and ultimately better quality after you get past it’s learning curve.
System requirements: Enscape - System Requirements - macOS - Enscape V-Ray - System Requirements - V-Ray Standalone - Chaos Help
I’m in the process of learning V-Ray myself, but you might also consider SU Podium if you want something simpler. That’s what I started with.