ZBrushCentral

ZB to XSI ... the Joker

I have been working on my first Zbrush model with a mesh imported/built in XSI 5.0. Here are a couple of images of the normal map created in Zbrush, and the model in XSI.

I have a few questions, for all those XSI and Zbrush gurus.

  1. I have created a normal map from ZB, and applied it into XSI. Is there a reason why the map creates a shinyness/spec? Or am I missing a step?

  2. I also attempted to add the fast skin shader with the newly applied normal map … problem is, the fast skin shader over-rides any bump/normal map, so what do I do?

  3. Is there a way to change the uv’s in ZBrush? Or if I fixed the uv’s in XSI (the original imported .obj into ZB was fine - the newly base mesh (from ZB) - the uv’s screwed up. I worry all the work I created, with the SDiv levels, will no longer work, should I fix then reimport the mesh.

  4. Finally, I have pulled my hair out, trying to get the displacement map fromZB, to work in XSI. I have watched the tutorial videos, and manually played with them - but the displ map still will not work. I noticed in ZB, the displacement depth info calculated 0.0211, and when I import the obj with the displ map, typed in the depth info, it does not work. ---- by then I decided to create a normal map instead.

Anyway, please let me know if anyone has come across these problems, as well. I am just learning these ‘new’ technics, so if I am asking the same repetitive questions, please forgive me. Btw, this Joker is from the Arkham Asylum graphic novel - sooo cool!

Thanks!
*(Joker_compare.jpg I just found out morphing target will fix uv’s)

Attachments

Joker_NMap.jpg

Well one quick thing I see is that your normal map was generated using “World Coordinates” which will deform and look very strange if you move your mesh anywhere else and try to render. You need to regenerate your normal map using “Tangent Space Normals”, also you should use ZMapper (it’s awesome)

Regenerate the new normal map, which when you look at it will have a very blue/purple tint.

-Colin