Do photorealistic models with huge densities and that use procedural materials need to be UV unwrapped? Also, how exactly do movie models get skinned and weighted? I mean they're also very dense.
Sometimes they are smoothed. Other times they are modeld to be the highest res needed. Like way more detail in the face than people are used to, fucking tear duct wrinkles and shit. But then low ammount of quads on the chest and back