Everything...
*inhales deeply*
Adjust the Clothing to a T pose.
Export a Genesis2 Model from Daz as .obj
Import it to Blender and scale the clothing to fit
Sclupt the clothing to fit the Daz model closely
Export separate parts as obj eg. armour, gloves, boots, hat, cape
import into daz
convert the clothing from object to figure in the edit, object, rigging menu
Fit it to the genesis 2 model
unparent it
remove the genesis2 model
Save as scene subset
repeat the last 4 steps for each clothing item
open vam and add a default person atom
freeze physics, reset pose
open clothing creator in clothing tab
import your daz scene subset
go to materials tab and add your textures
save each item and take the screenshot
repeat for each clothing item.
you would need to click generate sim data for the cape. Set the slider to almost full black and click enable sim.
and the staff and backpiece would have to be a Custom Unity Asset not clothingggggggg...
There's detailed free guides if you search through the hub > resources - free - guides