But G8 rendering for this quality is too long. For this pic I cancel at 63% after 36 sec and it's wow. Plus character file is only 240KB with clothes. This is crazy fast and good.
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g8 pic like this would be no more than couple minutes, now loading times are different story, mostly because most have lots of morphs for g8 and Daz PAs couldn't care less about sticking to any sort of standarts, and Daz itself want to burry g8 so you'll buy into the g9 hype
denser mesh of g9 makes custom sculpting easier for non Daz affiliates, since we can't import high definition morphs, but that is about it, it is just a money grab from Daz, nothing more
besides they still havent made joint correction addons for g9 last I checked, that is a big problem if you want realism, they make a big difference with g8, you can make hips, ass and legs look much more natural on g8 with them, g9 looks like a potato sack in comparison
g9 seems to have better face response to emotion sliders, maybe the denser base mesh makes it easier, but theoretically you could do all that with g8, not regular joes and janes though, you need the special non public high def morph loader for that
all this pales to metahuman development though, but that is kind of another can of worms as far as I can tell