What is the difference between Rez and Rez infinite?

Excuse me, could you please clarify the distinction between Rez and Rez Infinite? I'm a bit confused as to how they differ from each other. Is Rez Infinite a new version or an extension of Rez? Are there any notable features or capabilities that are unique to Rez Infinite that are not present in Rez? I'd greatly appreciate it if you could provide me with a concise yet comprehensive explanation of the differences between the two.