Determines the orientation of the hemisphere's major axis (top/bottom.)
Offset
RotationThese settings allow repositioning of the model with respect to the mapping hemisphere. This is sometimes necessary when mapping models that aren't symmetrical. For example, suppose you want to use polar mapping on a model that consists of a quarter sphere. By default, the mapping hemisphere will be centered on the model's geometry and would give undesired results in this case. To correct this, you can enter an offset here to adjust the center of the mapping hemisphere to get the desired results.
Changes the position of the seam of the mapping hemisphere. It is specified in degrees, and is clockwise about the negative axis (see "Axes Alignment" above.)Gaps in Map
Selecting this option will cause a border of blank space to be placed around the entire mapping area. It's a good idea to leave this option checked since each 3D rendering program can interpret UV coordinates slightly differently and it's a good idea to paint over the edges of a map by a few pixels. This isn't possible without gaps in the map.Scale Result
Checking "Scale Result" will cause the resulting map to be scaled based on the "Pixels Per Unit" setting under Preferences.Spread facets at poles
Unchecking this will cause all facets that share a vertex at the top or bottom of the cylinder to also share one UV coordinate as well. This is usually undesirable and is not recommended.