Zbrush Export Options - Polypaint

[system]

Kind of an idiot question, but I’m an idiot so bear with me. Are there any specific options I have to choose when exporting a high poly .obj with Polypaint data? I have a 3.1 million poly model and I am trying to use Xnormal to bring across the Diffuse / Normal / and AO from the high poly Zbrush model. When I try to transfer the Polypaint information over, it layers my low poly model’s unwrap with red. Not sure if there’s a trick to it on Zbrush’s end, if Xnormal is broken, or again I’m just an idiot. I’m hoping the latter. I know I can just “Project All” to get it working with a few painful tweaks, but using the Polypaint information is a better workflow for me. Any help you guys might offer is appreciated.

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[beta_channel]

which image is which? It seams you already have a texture map…at least that is what I see on the right.

Where did the red one come from? Zbrush or xNormal? What are you settings inside of xNormal? Are you exporting your polypaint from zbrush? which version of zbrush and xNormal are you using?

Have you tried your workflow on a simple object…like a box or sphere?
If you have, did it work?

[system]

The red overlay is on my low poly unwrap, it’s what Xnormal does when I try to create a Diffuse from the vertex color data through Xnormal. I can get a Diffuse(the one on the right) by using “Project All”, or using GUV tiles on each subtool, and loading them all into Xnormal, but it doesn’t come out great and I try to avoid using the temp texture tiles for this reason. All the options are standard in Xnormal except, the “Ignore-per-vertex-color” is unchecked. How do you export the color info from Zbrush? Is it embedded into the .obj? It does that red overlay on my texture map whenever I try this despite what model or computer I use. I’ve also tried using two different versions of Zbrush and 3 different versions of Xnormal. I’m mainly wondering if anyone uses this or has gotten it to work, maybe I’m doing something wrong? If not I’ll have to change my work flow around again. Or if anyone can suggest a workflow that they use I would be grateful for the rest of my humble life. Here’s what I do now.

1. Blender> Tweaks on my base model.

2. Zbrush> Texturing & Detail

3. Blender> Re-topology and low poly unwrap

4. Zbrush> Project all to align the two meshes.

5. Then here is where I’m stuck, trying to either, project everything on a subdivided low poly mesh and ending up with “some shooting star vertices”, or having Xnormal take care of the dirty work. But I can’t get the Polypaint transfer to work… Anyway, any (even quick) suggestions someone might have is greatly appreciated. There seems to be Hollywood magic in everything…

[beta_channel]

gonna say you didn’t scroll.

[system]

I knew it was something stupid! Thanks for not rubbing it in. It’s like swearing your keys were on the table and blaming everyone for taking them, then finding them in your pocket. They say two heads are better than one, but you really only need one competent head. You are a scholar and a gentleman, thank you again good sir! My Diffuse maps will forever be in your debt!

I still can’t get it to work, I just get a plain white background on the Xnormal texture bake, but I’m leaps and bounds closer to figuring this out. Thanks again.

[beta_channel]

http://www.youtube.com/watch?v=dvNOCojBRoE

Give that a try.
Also, make sure you bake down your polypaint layers, if you’re using them.

[system]

Thank you for the video, it was helpful. There was one difference in the video from what I was doing. In the video, I believe you were using the same model in your modeling program as well as in Zbrush. I was thinking the issue was because you had the same unwrap for both your low and high poly model. That didn’t turn out to be the case however. In my frustration, I messaged my brother and asked him to try it on his PC (now that I know about that option), which is significantly different in hardware and has a different OS. And guess what, it worked… Therefore the issue lies with my computer. I’m going to re-format and install everything from scratch and see if that fixes it. Sorry for the trouble, but it wasn’t in vain. I learned a lot and I’m grateful for your help. Soon I’ll have more pieces to this 3d modeling puzzle, and I won’t be such a newb. Then I’ll pass it on to another poor fellow who will pass it on to another fellow, who will pass it on to twenty and on and on. And you will have spawned an empire of 3d modeling geniuses, all because you took the time to help this poor fellow. Thanks again for everything, it’s much appreciated!