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Zbrush Gone Mad! Please help

ZBrush Usage Questions
#1

Edit: Apparently I need to paint over my entire model in a single color, say white, and only after I do that I can start painting over it normally. This seems to fix my two problems. Could you please tell me the logic behind this so I will understand things better? (No need to read the rest of my post)

Thanks :slight_smile:

Hey eveyone

I’m in the middle of creating a pic which I personally find pretty interesting, but I’m having some very weird problems which prevent me from working.

First of all, when I try to polypaint an object, I set the mode to “RGB”, turn off “Zadd”, select a wood texture (for instance), select a soft circle-shaped alpha (which fades away at the edges), set RF in the alpha window to 20 or so, set the mode to “Draw Rectangle”, and then when I try to polypaint the texture, it draws a rectangle with hard edges, not a fading circle-shaped texture like it always used to.
What am I doing wrong?

The second problem is, when polypainting, sometimes the things that I paint are seen normally, and sometimes the material seems to screw it up, so that my model appears as if I never painted anything on it.
For instance, I just painted on a wooden portal thing in HD mode (I pressed A so I will only see a part of the mesh), made it look as if its made of wood, and then after I pressed A again to view the entire mesh, the mesh appeared completely white and my painting disappeared!
When pressing A again to again view only the selected area which I painted, it still appeared white and unpainted, but if I paint on it with 50% RGB intensity, then suddenly my texture shows through.

I thought I managed to get a good understand of the program, but these two problems really bug me.

Please, I know I phrased them in a weird way, but could you please help me?

Thanks!

#2

i cannot replicate your first problem, your settings work fine for me. i only get the square effect if no alpha is selected.

i too get strange results when painting using HD, so i just don’t attempt that myself anymore. Maybe this is normal though.

#3

Thanks for your reply

I think I can get a bit more specific, maybe that way you’ll be able to know the solution to my problem:

Say I want to polypaint an object (HD or not) using a texture. As soon as I select the texture the whole object is painted with that texture. What I want instead is to be able to paint using that texture on the object. Sometimes this problem occurs and sometimes it doesn’t, and I have yet to figure out why and when it does.

Do you maybe know why this happens?

Thanks again

#4

don’t know if this will help but i know what you’re talking about now. From the wiki:
http://www.zbrush.info/docs/index.php/Polypainting#Using_a_Texture_Map_to_Paint_with_in_ZBrush
Using a Texture Map to Paint with in ZBrush

To PolyPaint with a texture map you must delete your UVs by pressing Tool: Texture: Disable UVs. If you have UVs ZBrush will display the texture map on your model instead of letting you use it to PolyPaint with.

You can create new uvs when you are done PolyPainting by pressing Tool: Texture: Auv. Make sure you are at the lowest subdivision level when you do this.

You can import your UVs again after you have finished painting by following these simple steps:


  1. Press Tool: Morph Target: Store MT to store a Morph Target
  2. Press Tool: Import to Import your OBJ with your Uvs made from outside of ZBrush
  3. Press Tool: Morph Target: Switch to switch back to the previous geometry state. ZBrush will keep the changes you made to the UV but reverse any change the imported OBJ made to you model’s geometry.
To enable PolyPainting with a texture map simply delete your UVs.

#5

Disabling the UVs solved the problem. THANK YOU!

This really forced me to stop in the middle of a productive work day, thanks to you I can now continue :slight_smile: