Share Email Facebook Twitter LinkedIn INTERFEREVPVS (System Variable) 2013-04-10 Product Documentation Intermediate View Original Specifies the visual style for the viewport during interference checking. INTERFEREVPVS can only be set to a visual style that is saved in the drawing. The visual style specified for INTERFEREVPVS cannot be removed with the PURGE command. Related References Commands for Checking 3D Models Related Concepts About Checking 3D Models for Interferences