Geometry and Topology Analysis Functions
The functions below are dedicated to the analysis of your model prior the Boolean operation (Show Coplanar) or if errors were found after the Boolean process (Show Issues).
The Render >> Render Booleans >> Show Coplanar mode displays all faces which are located on the same working plane. This is typically when you have two models which have polygons that overlap with each other.
This is a problem that needs to be solved or the resulting Boolean operation may produce results with missing areas or broken parts.
This mode will highlight in red all polygons which are found to be coplanar and may produce errors.
Refer to the “Important Notice about Boolean Operations” and “Boolean Resulting Topology Issues and Errors” sections of this chapter for more information.
Inside (Show Coplanar)
The Inside mode is associated with the Show Coplanar mode. When enabled, it displays the coplanar faces which are inside the geometry. If the mode is disabled, only the coplanar faces which are visible in front of the surface are highlighted.
Solo (Show Coplanar)
The Solo mode is associated with the Show Coplanar mode. When enabled, it displays only the coplanar faces of the current SubTool. If the mode is disabled, coplanar faces are displayed on all visible SubTools that have such surfaces.
Previous / Next (Show Coplanar)
By pressing these buttons associated with the Show Coplanar mode, you will select the previous or next SubTool which has coplanar faces. This process does not cycle through the entire SubTool list but rather only the SubTools that contain the errors.
The Render >> Render Booleans >> Show Issues mode is only enabled when an output model from a Boolean operation is selected and that model includes errors. When this happens, ZBrush will display an error message immediately after creating the mesh. You should then select the resulting mesh and enable this mode in order to locate the errors and see what needs fixing.
When enabling this mode, ZBrush will outline in red all which are in error. Most of these errors are holes or degenerated surfaces produced by coplanar faces or non-manifold edges (one polygon edge is connected to more than two polygons).
By looking at the error areas, you can find potential errors in the original SubTools which have been used to produce these results. You can then attempt to fix those errors and try the Boolean operation again.
Inside (Show Issues)
The Inside mode is associated with the Show Issues mode. When enabled, it displays the errors which are inside the geometry. If the mode is disabled, only the parts which are visible on the surface area are highlighted.
Solo (Show Issues)
The Solo mode is associated with the Show Issues mode. When enabled, it displays only the errors of the current SubTool. If the mode is disabled, errors are displayed on all the SubTools which have issues.
Previous / Next (Show Issues)
By pressing these buttons associated with the Show Issues mode, you will select the previous or next SubTool which has an error. This will only cycle between the SubTools that are displaying the errors rather than the full SubTool List.