ZBrushCentral

UV mapping / col to texture

ZBrush Usage Questions
#1

I use zbrush 3.1 and want to render in V-ray for Rhino. I am very new to uv mapping and polypainting etc.

I have a question about how it works. I’m doing a simple test just to see if I can get it to work. AUVtiles works well in zbrush but V-ray for Rhino doesn’t have that option (that I know of). If I use any other uv mapping (uvs, uvc, uvp) which are used in V-ray I can’t seem to get it to work right.

In the first image it shows the AUV tiles that works, but I can’t use. The second image creates a texture that uses the uvp method. How can I get the texture to map correctly in Zbrush? I have also tried the free version of the uvmapper to assign one of those methods to map it, but the same thing happens. Again, I am new so I know there may be a simple answer, but any help would be appreciated.

Attachments

test1.jpg

#2

this is the second image

Attachments

test2.jpg

#3

if for example this ring has only 1 uv group, how can I change them into multiple groups in order to separate the sides from the outside and inside of the ring? Are the uv groups different from the polygroups?

#4

so whats the question < dude?

Use AUVTiles or GUVTiles - inside Zbrush or…use external UV editor…google them …ull find plenty. And read FAQ and Tutorials before asking questions…use SEARCH to find similar problem on the forum that been solved, so…luck )

#5

Sorry for not knowing as much as you. I have searched the forums, the net and I have read a lot about it. I still haven’t been able to figure out (for example) how to map the texture correctly using (for example uvp) as in example picture #1. I would not have asked if I did not already research it and try to figure it out myself. I have spent many days and hours on just figuring all this out. I can’t find the answer even after all the reading and researching. It hasn’t clicked for me yet so don’t shoot me down for that. I am a beginner.

As you can see in the Image #2 it doesn’t create or map the texture on the inside of the ring and it repeats or mirrors one side.

#6

have u used Projection Master? describe ur process, we are not extrasense ones )

#7

No, I’m just poly painting on the surface without projection master. This is just a slopy quick test just to see if I can get it right. I’m just poly painting it and then trying to use the col to texture option. I am experimenting with uv mapper right now to try and assign some new uv’s to it so that I don’t have to use the uvp, etc in zbrush. I have almost got it to work in zbursh, but then I’m going to have to figure it out for v-ray (to re wrap it to the surcace properley.

Thanks for replying.

#8

Well, thanks for anyone that at least read this post. I have been struggling with this for quite a while, but I think I figured it out and this is what I did.

I am no pro at uv mapper, but I managed to use that program to tile the uv maps. I had to then re map the side differently. I stretched what was there to fill the whole texture area. Then I saved the model, imported it into zbrush and then did the quick polypaint test on all sides. Then I went straight to col>text and it worked pretty well (just a few visible seams on the sides). Then I flipped the texture vertically as suggested by someone of the forums (found doing research a while back) and then exported the texture. In V-ray I applied the texture to the diffuse layer on a matrieal and rendered. It all rendered correctly.

My problem was the uv’s. The uvs,uvc and uvp didn’t fit the model properley, but once the uv’s were redone in uv mapper I finally got it to work right. A more complex object might be a bit harder to do though.