Primitives

Primitives are simple 3D shapes that form the bulk of a map.  They can participate in constructive solid geometry operations like Hollow and Carve.  They can be automatically UV-mapped.

 

The nature of brush geometry requires that these objects be convex.  Convex objects don’t have any “dents” in them.  Every surface faces away from the center.  Primitives also must have coplanar surfaces.  All vertices on a face must lie on the same 3D plane.  Care should be taken to follow these rules when moving the vertices of an object. 

 

Cartography Shop allows creation of boxes, wedges, cones, and cylinders.  Together with vertex manipulation and mesh prefabs, these basic shapes can be used to build any type of structure.