PK_FSURF_t

This type represents a Foreign SURFace; that is, one implemented in an
externally supplied parametric evaluator.

Used in:

PK_FSURF_ask
PK_FSURF_create

An fsurf is a type of surface (PK_CLASS_fsurf is a subclass of PK_CLASS_surf).

The fsurf is defined by data contained in a PK_FSURF_sf_t.