zbrush weird issue

Bumblebee

Hey Guys,

I hope you re all well and healthy! So just upon opening i noticed a strange artifact when applying alpha on a 2 Million Polygon plane. Im pretty sure I didnt get this issue in previous sessions.

Obscura

Looks like a bit depth issue. Was the alpha texture input in some sort of hdr format? - 16/32 bits/ channel, exr, hdr, or tiff.

CharacterCarl

+1 what Obscura said. Might be fixed easily with a bit of ClayPolish though. Which material are you using? Sometimes a material has a strong cavity value which exacerbates this banding issue.

Bumblebee

Obscura said:

Looks like a bit depth issue. Was the alpha texture input in some sort of hdr format? - 16/32 bits/ channel, exr, hdr, or tiff.

it was a tiff which i then converted to png.

Bumblebee

yea i still get the same error. Ive been using the same pipeline before without any problems...

Obscura

Switching to png made it 8 bits. Switching that back to 16 bits won't do anything. Make sure you use an actual hdr texture, and the stair stepping will go away.