Autodesk
PR: Export ignoring V/G settings Detail Level
Problem Description
When exporting from Revit Exporter ignores settings in V/G "Detail Level"
No matter what you set up here (Coarse/Medium/Fine) it always exports as "By View"
This causes problems and mistakes when designers setup specific 3D View using these settings for IFC export, because IFC export does not correspond with the 3D View Revit visibility / settings.
In example there are doors with hardware provided, where hardware is only visible in "Fine".
As long as 3D View "Detail Level" is set to fine it always export Hardware, even if whole Doors Category is set to "Medium" or "Coarse" through V/G settings. Works the same in opposite direction (if View is set to Coarse - it ignores V/G settings of categories for Medium/Fine....
Only way not to export Hardware is to completely turn off "Subcategory".
Is that ignorance of "Detail Level" parameter in V/G there on purpose os is that a bug?
Thx
Fine View
Fine View + V/G settings to Medium
Revit Version
2026.0.x
IFC for Revit Addon Version
26.1.0
Windows Version
11 24H2
It seems like it is on purpose:
https://github.com/Autodesk/revit-ifc/blob/master/Source/Revit.IFC.Export/Utility/GeometryUtil.cs#L652
Yeah, seems like it is just looking for the "general" View settings and sets "Fine" detail if "Use current view" is not checked 😞
In that case, it would be great to enhance exporter to check for V/G Detail Level settings of the categories in the View and overwrite "general" View settings - if that is overwritten for some categories. 👍
This issue is also reported in Jira as "REVIT-240084" and is currently in the "Open" status.
