ZBrushCentral

Normal map creation error (solved)

ZBrush Usage Questions
#1

Hi All,

I’ve not played around with Z for a while so am a little rusty. I needed to generate normal maps for a model but they just keep coming out streaked/blank.

I thought it may be a UV issue so I created a basic test cylinder in max with UV’s and export/imported into Z. Increased mesh density, sculpted, dropped to a lower subdiv , set my tangent and created a normal map…
It creates a map but not a good one. I tested this again but in Z3.5 and my normal map is fine.

Is there a problem in Z4 or are there some settings that need tweaking to ensure the correct output.

PS composite of the 2 versions : 3.5 and 4 to compare. Both following the exact same steps.

zb35_4norm.jpg

Cheers

El-d

#2

click this “adaptive” button and you should get a good normal map. :slight_smile:

#3

Thanks but no cigar :frowning: .

Tried that and it makes no difference to my output.

El-d

#4

Make sure that your U and V values are less than 1.0 (i.e. 0-0.999), values of 1.0-1.999 represent the next UV tile. You may simply apply UVP mapping , or use UVMaster, then create a normal map.

#5

Solved.

Weird how it worked in 3.5 though. …and annoyingly using UV pack in max didn’t help either. I always figure that it fitted UV’s within the boundary but I still had to manually scale/move the uv’s to ensure they were within the range…

thanks.

El-d