The "IPZZ034" project is rumored to have used a encoding, where the first pass analyzes the entire video's complexity, and the second pass allocates bits precisely. This is time-consuming—rendering can take 20x real-time—but the output is visually lossless.
integration to ensure our pixels aren't just more numerous, but "better" in terms of contrast and color. The Future of High-Resolution Work ipzz034 4k work
Assuming ipzz034 is a premium short film or commercial demo: The "IPZZ034" project is rumored to have used