View Full Version : Zbrush and XSI topology

10 October 2008, 06:53 PM

I have been doing this wall on XSI, and with the UV I did the texture in Photoshop, after that I exported a light version of the bump map, to Zbrush, as a displacement map to have an idea how its going to look and model more fine detail over it, in order to get all the maps (color, normal and bump ) matching each other, but when I Import the map to zbrush i got this pinching in the texture and the displacement, i think is because my topology in XSI but i think i did correctly maintaining and quads and polygons evenly space, there is away to fix this pinching?

Thanks in advance.

11 November 2008, 03:28 AM
Sry it's hard to tell from here but I'd check my UV mapping :)

11 November 2008, 07:39 PM
Well i fixed a little bit my topology and I'm getting better results, but still getting a lot of stretchiness on parts where has two lines really close, but i did it to have sharp edges.

11 November 2008, 08:53 PM
One more question, when I go to zbrush to add more geometry details, those details now doesn't have geometry assigned, if go back to XSI with the geometry in a lower level Do i have to re-create the UV mapping? but if YES so I will lost my attemp to match my texture with my normal mapd and displacemnet, I dont know well the pipeline here i have been looking on internet but the only thing i found is someone with same problem went trough BODYPAINT and painted the whole stuff again.

thanks in advance

11 November 2008, 03:52 AM
I'm not extremely familiar with Zbrush, but I think the problem is because the geometry is not even. You have edges that are close together and edges that are far appart. If you want better results you will probably need to add more edges to get a more grid like pattern.

11 November 2008, 04:40 AM
Thanks for your response, but what about the edges where you want have keep a sharp edges, normally you have 2 or 3 tight edges ;(

11 November 2008, 04:46 PM
I would try to export the mesh from Zbrush back into XSI along with the Bump map, but assuming you did add a few subdivisions levels to the model in Zbrush, export it with level 1 and that might do the work. I am not sure. :lightbulb

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11 November 2008, 04:46 PM
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