ZBrushCentral

Problem with PolyPaint texture

ZBrush Usage Questions
#1

Hi guys, I have a model that has been colorized via the PolyPaint method.
I want to save the PolyPaint color as texture and then tweak the texture color in PhotoShop to be able to re-import and re-apply the texture to the model.

Preoblem is that I can’t get a texture out of the PolyPaint color.

In the docked right hand ‘Texture’ palette I hit the EnableUV button and then hit Col>Txr (Color to Texture) but all it does is turn my whole object BLACK and save what appears to be a blank texture.

What could be the problem here and how to solve it?
Thanks!

#2

Do you have UVs on the model?

Goto tool/texture/UV Check

UVs should show up as a texture under texture pallet Grey=good, Red=bad
In your choose your own adventure quest

Grey
Choose black as your Color in the color pallet
Texture / 2048 for size / new texture
Model will disapear (this is normal because of the black)
make sure RGB button is on at the top is on
then goto tool / texture / color to texture
This will add the color to the texture on a black background making it easy to color adjust in photoshop

Red
Tool / texture / AUV
do a UV check again
Grey=good, Red=bad
goto grey

end loop

#3

Thank you, cannedmushrooms.
To be honest I don’t have a damn clue what UVs are and what they are used for (read somewhere that they are like RGB for colors or like XYZ for measurements but this isn’t helping me a lot).

Anyway, back to the topic.

I did what you advised me and followed your advices step by step.
Still can’t get my texture out of the PolyPaint.

Check out the pictures below.
I added comments showing what I did.



#4

try this
It looks like you have no UVs

one.jpg

Attachments

two.jpg

three.jpg

#5

My model immediately turns black at step 2 (when I hit the UVTile button) .
I think it is pointless to go any fruther from there.

#6

in steps one through four make sure its on white;) under color

#7

look this zscript, before run press show actions and note in the zscript panel.
The secuence is:
1.-Load your model in canvas, press T to enter edit mode
2.-Select a material fast shader and base color, press in Color panel fill object
3.-Paint your model
4.-Press Col>Txr and you will see the texture in the texture slot
5.-If you want to continue painting press Txr>Col when satisfie
6.-Press again Col>Txr and export your texture map
Each time your are in colorize mode by default are in enabled UV
Andreseloy

#8

OK, i did that.
Now it turns black at step 3 UV Check (just like before) and it doesn’t care that the color is set to white.

#9

does your model turn back to color when you switch your texture to off?

If not load your colorized model and enable UV before you try steps 1-9

#10

Yes, it does turn back to its original colors when i turn the texture off.
Funny thing is there is no visible texture in the palette.
It looks like an empty box (grey) and this is funny too because this empty/grey texture is making my model BLACK. :confused:

#11

the empty grey box really isnt empty its actually filled with pure black which shows up as transparent.

in step 5 choose white

#12

Can’t get to step 5 - it fills all with black at step 3.
And my both colors (main and secondary) are set to WHITE.

#13

try assigning UV
EnableUV button and then press GUVTile, this assignthe UV
then press Col>Txr

#14

ok I was able to simulate what you are experienceing
has to do with your material. So do thie
CLOSE ZBRUSH this is so your not dealing with outside the box issues
Load the model with the colors painted on
Enable UVS
goto the lowest level of geometry
tool / texture / AUV tile
under material choose fast shader 5
Goto mrg at the top
then goto color fill object
this will make the object flat not shiny
Now start at step 3 a go though all the way to step nine.
If that doesnt work I would really have to see the model to understand what your dealing with

#15

Thanks, I will try these steps, man.

I just made a video showing what problems I’m having with this black phenomenon but for some odd reason Zbrush crashes every time I try to export it as Quicktime *.mov file. :frowning:
Seems it’s totally bugged.

I will upload the tool somewhere and post the link here.
Any suggestions for a good and free file host?

Thanks!

#16

cannedmushrooms, your last wrkflow didn’t work - it fills everything with black again when I lower the geometry.
The damn thing just likes to fill everything with black, no matter what steps I undertake and won’t let me go any further.

edonkey, your method didn’t work too. Guess what - it fills everything with black at step 1.

There’s something terribly wrong with my ZBrush.
I am having other problems with it too.

What is a good free host where I can upload the model for public download?
It is about 5+ Megs zipped. 6+ Megs unzipped.

#17

you can re-import your original model at level 1, then your original texture coordinates are back. Press uvcheck and you will not get that blank screen.

Then press col>tex
This should work. Although my new texture with original uv coordinates is created, it’s not perfect. Even if i go to the highest level and press col>tex.

anyone know why this strange triangle thing happens? :mad:

workflow_1.jpg

Attachments

workflow_2.jpg

#18

woohee the above workflow works! :wink: :wink: :lol:

I had to resetXform my model in 3dsMax.

Jason

#19

I’m having similar problems with my models when I texture them. I’ve gotten stuff like in the post above me for UVs and my models often turn entirely white after I do color to texture.

I’m going to play with the advice you guys gave here for UVs.

I have a question though:

should I try to make UVs and paint for the subdivision level I will be rendering the model at if I plan to use the highest subdivision level as a normal map?

Also, does Zbrush produce UVs and textures that work in game engines?