ZBrushCentral

Normal map question

ZBrush Artworks
#1

So I have a modified sphere that I made in Maya. I brought it into zbrush and spent some time adding some detail https://gyazo.com/75da04eb356eaa3fe4d8c64dd2e9b755 It’s pretty much a Uved sphere with extruded dots all over it. When I reduce it to it’s lowest resolution and generate my normal maps, what I get is this: https://gyazo.com/056d9021ffc57667bcd666b29ac61abf

Notice in the above pic, only a small fraction of the detail registers and the rest is all just lines with no detail. How can I export the entire normal map? Does anyone know what I might have done wrong here? I’ve re-exported the geo and checked the UVs in Maya and the uvs were all definiytely there still.

#2

If you have UV coordinates that exceed (or even touch) the 0:1 borders, then zbrush will do something weird and try to wrap those points back to the opposite side of the texture, which creates all sorts of weirdness such as this. Either scale the UVs down slightly so that there is some padding between the coordinates and the edges of the UV space, or try baking the normal maps in Maya instead.

#3

Thanks a bunch. That solved my problem. Brought low res back into Maya and fixed the UVs.

Also, I noticed your account says you are from Atlantic Canada. Hello from Nova Scotia! :stuck_out_tongue: