Hi there,
Ok this is driving me mad.
How do you scale a texture map to fit a subtool.
I would have thought it would be the first thing to adjust !
import a square image into texture maps, apply it to a cylinder, adjust the scale so the seams match up. Simple
Is it me grrrrrrr!
2rπ x h so 2rπ x U = h x V
and in UV space U = 1, V = 1 => 2r x π = h
=> h/π = 2r
so just ? is what is 2r and what h in zbrush xyz world and that should be easy to find out
That is for unwraped cylinder without top and bottom, don’t know how you scaling texture in zbr and what unwraping method using
It’s never quite that simple. Any scaling you do to the texture tends to affect the entire scale of the texture, which wont guarantee that it will align to any UVs (which might have offset coordinates, non-uniform scaling, etc).
Generally when you’re working with images its better to do so in a program designed around image editing, like Photoshop. That way you could load up an image of the stamped UVs, create a layer for whatever texture you using, and then have a plethora of options to scale whatever you want however you want.
In Zbrush you could perhaps give the cylinder a temporary texture (new from polypaint), use Tool: UVMap: Morph UVs to flatten it, then hit G to drop it with Projection Master. Draw out the texture image on top with a dragrect stroke type (simple brush), then switch to Scale to try to figure out the gizmo so that you can scale the stroke to fit the flattened model. Once done if you hit G to pick the model back up from projection master then it should have an updated texture, and you can unflatten the model.