Facets Generation

Overview

Starting with SolidDesigner 3.0, a slightly different algorithm was used for generating the facetted graphics model for freeform surfaces in new parts. The algorithm leads to lower memory consumption and faster redraws since it will usually generate many facets only where they are needed, i.e. where the part has a strong curvature.

Description

Parts in files written in older versions of SolidDesigner (up to version 2.1) will not automatically benefit from this new algorithm. The old files contain control information about the facet refinement values; they might have been set (using REFINE PART/FACE) to fulfil, say, certain STL quality standards, and for compatibility reasons Creo Elements/Direct Modeling cannot simply throw this information away.

If you do not need this grade of compatibility for the old files, you can enable the new facet generation algorithm by entering

(prim-ignore-stored-facet-refinement :on) 

in the command line before loading such an old Creo Elements/Direct Modeling file.

As the name of the LISP primitive says, once you have enabled this feature, all facet refinement values stored in Creo Elements/Direct Modeling files will be ignored. Therefore, you should not use this as a permanent setting, because it will affect all models which you load, not just the ones written by SolidDesigner 1.x and 2.x.

To switch this off, enter

(prim-ignore-stored-facet-refinement :off)