ZBrushCentral

increasing details quality in high poly to low poly

hello guys ,
i’m new to zrushcentral forums , so excuse me if i post this topic in wrong thread,
this is almost my first serious character work ,

i need help , i want to increase details quality from high poly to low poly and render out of zbrush (in arnold), but i cant achieve the same level of details as in zbrush ,
here is high poly &texture inside zbrush ,(only body is important , and i didn’t work on other parts) and textures and details are good

and this is some renders inside arnold maya

first , i bake maps inside zbrush , maps that are used are:diffuse , bump , displacement map
and after a bit of research , i use xnormal for baking maps , but not quite noticeable change ,
my map res are 2k ,

and at last , Any comment and critique would be appreciated , thank you

reza dehghan

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test arnold2.jpg

test arnold3.jpg

How many total polygons is your model? You said that your map resolution is 2k, which is a maximum of 4 million pixels. (In practice, after UV mapping you’re usually looking at about 3 million usable pixels.) If your model has more polygons than your map has useful pixels, you’re going to lose detail. So if your model is more than 3 million polygons you should probably jump to a 4K map, possibly using a DPSubPix value of 1 when calculating the displacement map.

thanks for answering ,
excuse me , my English is not good,

my high poly count is about 7 million .
so if i increase the map size to 4k ,then can i achieve highest quality of textures in an external app like Maya? even with low poly base mesh ?

and another question , can i increase the map size after i poly painting the model ? or i must select the correct map size before any poly painting?

thanks a lot .