UV Mapping
From ZBrush Info
The UV functions have been moved to their own dedicated menu in the Tool palette. Most of the previous features are now located in this new menu, and some features have been added.
Now, before creating a texture for the current ZTool or one of its SubTools, you can change the default size of the maps created by ZBrush for the Color map or the Displacement Map: four presets buttons have been added for the most common sizes: 512, 1024, 2048, 4096. You can also set a custom value up to 8192 by entering a numerical value or moving the UV Map Size slider.
ZBrush is optimized for map sizes which are a power of 2. You will get the best results by using one of the four preset sizes.
New UV method PUVTiles
In addition to Adaptive UV Tiles (AUVtiles) and Group UV Tiles (GUVTiles), a new automatic UV unwrap has been added: Packed UV Tiles (PUVTiles).
This new UV creation feature is a mix of both AUVTiles and PUVTiles, which creates a UV unwrap which will try to as much as possible to fill 100% of the UV space (like AUVTiles) with packed UV groups (like GUVTiles). This is the most distortion-free UV unwrap that maximizes the UV space.
To Generate a PUVTiles unwrap:
- Go to the lowest level of subdivision for the ZTool which needs UVs.
- Click on the PUVTiles button located in the Tool >> UVMap menu.
- If needed, go to the Tools >> Texture Map menu >> New from UV Check to check your created UVs.
Note: Tiles mapping does not make sense to the human eye, but the computer has no such difficulties. When combined with PolyPaint or Projection Master, these mapping methods provide the most accurate and distortion-free mapping available. You will be able to paint what you want to see, rather than trying to paint on a flat map and manually compensate for stretching or seams.
