ZBrushCentral

Problem with 3ds max normal maps

ZBrush Usage Questions
#1

I get strange squares on my model when I render with the normal map applied and it only happens with the normal map applied yet there is nothing wrong with the normal map, at first I thought it was because of the tiled uv layout so I tried it using uv spherical and the same thing happens. I examined the bump map and I see no squares on that…

I have tried two methods of exporting the normal map from zbrush, I have done it using the 3ds max configuration in zmapper and I have tried exporting a displacment map and then converting that to a normal map using another program. Both methods produce the same out come with the strange squares.
This happens with everything I create and it is so frustrating!

here is an example of what I am talking about

and that same model without the normal map applied…

and the model from zbrush to show that it’s not got those squares on the high poly

#2

What do the UV’s look like? Does anything odd happen when you use ZMapper’s morph unwrap feature?

Have you tried increasing the Raycasting Max Scan Distance in ZMapper’s Misc menu?

#3

hmm it’s still doing it :frowning:

Could it be 3ds max?

#4

I found out it is the seams in the uv layout, I had to weld them together because zbrush does not do this for some reason. But now I have a new problem…

zbrush’s uv layout has seams running all over so I have these weird squares on there that I cannot fix because in the uv they are on oposite sides so I can’t exactly weild them together. Is there a way for zbrush to creat the uv so that the seams are in a better place…