ZBrushCentral

Normal map includes a image of the base mesh (sort of)

ZBrush Usage Questions
#1

Hi there,
while generating a normal map, i was stumbling over strangee effect. I am baking on the first level of 6 subdivision levels. Map generates and looks ok so far. But on closer look it includes an “normal image” of my base mesh (i marked a smapp part with red lines, but as you can see its all over the place).
My base mesh has a quite low resolution and while subdividing i did not switch on smooth because i wanted to avoid any contortions in the mesh.
Has anybody any idea why that is and how i may get a clean normal map witout these “low res mesh artefacts”?
Best regards,
Heiner

NormaloV2a.jpg

Attachments

NormaloV2a.jpg

#2

Save a backup of your model, then at the lowest subdivision level apply a Crease All (Tool>Geometry>Crease All) before generating the normal map again.

#3

I will try that!
Regards Heiner

#4

Hi Marcus,
i tried the procedure you described, but it did not help.
This here is the Result:
NormaloV2b_small.jpg

Regaards,
Heiner Stiller

#5

What options did you select in the Normal map settings?

#6

I use create texture from uv check to generate UVs (Model has a uv set) and then just normal mat -->Tangent and create normal map.
Regards,
Heiner

#7

I did not switch on “Smooth low res normals” (stupid me!)
Now it works!
Thanks to all for your Help!
Heiner

#8

Yes you need that enabled all the time in my experience.