Texturing and layer issues

[dk79]

Hi there.
I’m still learning Zbrush so bear with me while I lay out my naive questions.
A few days ago I finished a model I did and wanted to texture it. It has UV’s but for some reason I chose to disable them while texturing. Everything worked fine but now after saving and reopening the model I have a series of issues.
First of all when I open my model it doesn’t have the material I chose(flat shader) on it. Instead it has the default zbrush material (red wax or something like that). Isn’t it supposed to be saving the material as well?
And right when I put the model on the canvas I see the artifacts in the picture below. Why is that happening?
If I switch to the flat shader the texture looks fine. Any other texture will have the same artifacts.

The other issue is the fact that I can’t really do anything with the painting I did. If I re-enable the uv’s and press the col->txt button the whole model vanishes and I get an empty texture. Any idea why is that happening?
Is there a way to solve the work I did?

The last issue I’m having is with layers. I have a couple of layers (one for pose and one for extra detail) that remain greyed out after saving and reopening the model. I’ve noticed that if I switch the model to a specific subdivision the layers are enabled again. But only for that specific layer. Is that how it’s supposed to work? Did I have to create the layers in the lower subdivision so that they would be enabled on all the other subdivisions?

Many thanks in advance.

[spaceboy412]

1. make sure only M is selected not RGB or MRGB, then with whatever mat you want on your model selected, go to the color palette and hit fillobject.
   2.enabling uv’s does not give it uv’s it just enables them, you need to assign it uv’s, try either AUV or GUV, or import from your other app.
2. yes layers are subdivison dependant, however you can have a layer active and work on the model on another subdivision, then return to that level and the changes you made should be in that layer.

[dk79]

Hi spaceboy.
The model has UV’s from cinema4d. So that’s not the problem. But the other subtools don’t have any. I don’t think that is the issue though because I’m trying to apply the texture to the object that has UVs and not to the other ones.

So any ideas how to avoid the disappearance of the object and get some textures going?

[spaceboy412]

in your previous post you said “i re-enable uv’s”, hate to tell you this but once you disable uv’s they’re gone, enabling them only allows the model to accept uv’s again, it doesn’t mean it has them.

[dk79]

Oh that’s nice…
So there’s no way to get the original uv’s back?

[spaceboy412]

you will need to export your low res model from c4d with uv’s as an obj, then do as aurick says here;

Here’s what you need to do:

1. Go to level 1
2. Store a morph target with Tool>MorphTarget>StoreMT
3. Import the new UV’s
4. Switch to the stored morph target with Tool>MorphTarget>Switch
5. Return to the higher levels

If you don’t deal with the morph targets, then importing the new level 1 will change the size of the mesh. This in turn affects all higher subdivision levels.

[dk79]

Many thanks for that. It worked. The only problem is that the texture got a little screwed up. In some places the texture is gone. But I think I can deal with that. I can patch it up.
Is it because the zbrush version has a pose which means it’s not the same as the original one?

[spaceboy412]

honestly i don’t know, just make sure that your uv’s are not touching the edges of the uv layout, if that makes any sense.
you didn’t add any geometry, edgeloops or anything did you? oh, maybe you had a mask applied before you did the polypainting to texture? try clear mask before doing that and see if that helps.