BlenderBIM - OpenBIM authoring with Blender

Yes I had blender osm installed before I cleared everything as well. had so many addons that I just wiped everything to be sure.

When I try to import second a ifc file and I get this error:

Python: Traceback (most recent call last):
  File "C:\Users\-----\AppData\Roaming\Blender Foundation\Blender\2.91\scripts\addons\blenderbim\bim\", line 163, in execute
  File "C:\Users\-----\AppData\Roaming\Blender Foundation\Blender\2.91\scripts\addons\blenderbim\bim\", line 319, in execute
  File "C:\Users\-----\AppData\Roaming\Blender Foundation\Blender\2.91\scripts\addons\blenderbim\bim\", line 1105, in load_existing_rooted_elements
    self.existing_elements[self.file.by_id(obj.BIMObjectProperties.ifc_definition_id).GlobalId] = obj
AttributeError: 'NoneType' object has no attribute 'by_id'

location: <unknown location>:-1

Is there any chance to know why this happens?

Quick status update that the Blender-OSM clash bug has been fixed, as well as the importing second IFC bug.


Dion is there a download available of Blender BIM with the updates applied? Thanks

1 Like

BlenderBIM Add-on v0.0.210221 has been released with 57 new features and fixes. It’s our built environment, help support the BlenderBIM Add-on: 100% free and open source software that lets you author and document BIM data fully to ISO standards. It’s built by the AEC community, for the AEC community. Get it today:

As the prior release was an entire rewrite, there were consequently a lot of bugs introduced. This release is primarily about fixing those bugs, so no fancy release highlights … unless you count the experimental 4D scripts, which are cool. With a more stable foundation, we can move forward and continue to build features as well as UX improvements.

Also Cinnamon is my new pet rabbit :smiley: Isn’t she cute!

All changes

New features:

  • BIMTester now operates on single feature files, which heavily improves usability
  • BIMTester custom schema is now specified as an argument, not as a tester requirement, which is where it belongs
  • BIMTester sentence quote usage is now standardised and always enable translations
  • You can now load the active IFC file into a BIMTester audit. No need to export first!
  • Now, users don’t need to consider include curves and 2D annotations as they are always imported
  • You can now specify a set of custom step definitions to BIMTester, go and write your own test definitions!
  • New BIMTester web app mockup
  • Validating IFCs UI now moved over into debug panel
  • New create shape debugging tool to help determine broken or crashing elements
  • Type representation maps are now shown in the IFC Representations UI panel
  • Type representations are now always imported (better for authoring), and also import super fast compared to before (before, enabling types being imported would significantly slow down import times)
  • Only IFC files are now shown in the export file dialog for a less confusing user experience
  • IfcPatch is now callable from the command line (thanks htlcnn!)
  • New IfcOpenShell.util.type module for checking applicable type classes.
  • You can now assign types with a smart type filter, without needing to first import types into Blender
  • New build script for IfcPatch to distribute binaries (thanks htlcnn!)
  • IfcOpenShell date util now supports converting to IFC2X3 date entities
  • Highly experimental script to convert from P6 XML into an IFC task tree
  • Highly experimental script to convert from IFC task trees into a Gantt chart JSON for jsgantt-improved
  • You can now edit parameters of parametric profile definitions in geometry.
  • New basic UI to view tasks in an IFC file
  • You can now add type instances, and mapped representations are enforced.
  • STEP IDs are now shown for non-rooted elements, like grid axes.
  • Blender now helps prevent saving Blender without having an exported IFC
  • Improve UI to change spatial container to prevent accidentally selecting incorrect objects

New fixes:

  • Fix bunch of error messages (commonly seen in IFCCSV) when you try to get a property value which is null
  • Fix bug where BIMTester audit classes dropdown wouldn’t show.
  • There is now an ID and GUID map to Blender objects for easy access especially for devs
  • Fix bug where Blender booleans wasn’t good enough. Now we’re back to IfcOpenShell with optional Blender conversion on a case by case
  • Fix bug where unable to install add-on in older Blender versions
  • Fix bug where switching representations would not work or create duplicated meshes
  • Fix error when importing consecutive files
  • Fix bug so that users can now reassign the IFC file location if it moves.
  • Fix bug where vertex welded happened across representations (thanks aothms!)
  • Fix bug where spatial objects with representations didn’t import correctly
  • Fix import bug where loading existing elements wouldn’t work
  • Fix crash on Windows when removing property sets (thanks aothms!)
  • Fix crash when reassigning class (thanks aothms!)
  • Fix unable to load IfcPatch recipes (thanks htlcnn!)
  • Fix regression where dumb objects didn’t get an IFC class
  • Fix ability to create grids which was totally broken
  • Fix bug when adding grids to drawings, which also was totally broken
  • Fix bug where product and type representations wouldn’t be linked data in Blender when importing
  • Fix bug where representations wouldn’t be purged correctly if they were part of a layer with many items
  • Fix bug where you could create mapped representations without having a type product
  • Fix bug where removing a mapped representation did not properly consider all mapped usages
  • Fix bug where switching construction type didn’t enforce appropriate representation maps
  • Fix bug where you couldn’t import two different IFC files in succession in the same Blender file
  • Fix bug where only a light removal occured when removing elements. Now, a full geometry purge is done as well
  • Fix bug regression in the absolute coordinate offset feature where I forgot to convert non-meter units
  • Fix bug where geolocation was lost if you tried to edit an absolutely positioned file
  • Fix bug where unable to install add-on due to clash with Blender-OSM.
  • Fix bug where you couldn’t copy classes without representations.
  • Fix bug so that null ownership histories in IFC4 are now allowed
  • Fix bug where you couldn’t edit the geometry of a grid axis
  • Fix bug where copying a class did not enforce mapped representations
  • Fix bug where removing mapped representations leaving you with nothing was a poor user experience

Wow! Nice work as usual Dion! I’ll download it right now. :+1:

edit: also yes, she is cute :smiley:

1 Like

I get this error when filmic-blender is installed and adding a drawing.
Note: ‘filmic-blender’ is not the same as blenders built-in ‘filmic’.

It might be related to this bug (hardcoded colorspace).

Is there anything you can do?

Arch Linux
Blender 2.92 (precompiled/official release)

Python: Traceback (most recent call last):
  File "/home/user/.config/blender/2.92/scripts/addons/blenderbim/bim/", line 1460, in execute
  File "/media/LinuxPart2/opt/blender/2.92/scripts/modules/bpy/", line 132, in __call__
    ret = _op_call(self.idname_py(), None, kw)
RuntimeError: Error: Python: Traceback (most recent call last):
  File "/home/user/.config/blender/2.92/scripts/addons/blenderbim/bim/", line 1347, in execute
  File "/home/user/.config/blender/2.92/scripts/addons/blenderbim/bim/", line 1368, in set_raster_style
    bpy.context.scene.view_settings.view_transform = style["bpy.context.scene.view_settings.view_transform"]
TypeError: bpy_struct: item.attr = val: enum "Standard" not found in ('sRGB OETF', 'Non-Colour Data', 'Linear Raw', 'Filmic Log Encoding Base')

location: /media/LinuxPart2/opt/blender/2.92/scripts/modules/bpy/

location: <unknown location>:-1

Take a look at this solution