(2025-05-25, 13:23)Sylvain Sauvage Wrote: I hadn’t checked the OMR specs before but it says: “All META commands are allowed in the model file but not specifically required except as specified for the header. If included, any META commands used should enable any instructions generated to be as close to the official instructions as possible.”
So should we understand it’s not an error to use bufex in OMR models?
(LeoCAD doesn’t process bufex commands either. LDCad does.)
Not an error, but since bufex is an unofficial meta, it's understood that not all LDraw-compliant tools will recognize it.
Unofficial metas are typically tool-specific. Bufex originally came from MLCad but is used especially in LPub. LPub has its own huge list of unofficial metas that aren't recognized by most/any other programs, but those programs can simply ignore them. The trouble with bufex is that it duplicates code, so when a program doesn't recognize it, the fallback state gives erroneous results.