Rhino Grasshopper receive Ifc

Hi there

I tested to receive data with Rhino Grasshopper 7/8, it worked pretty good. But with one model I’ve a problem. It’s actually an Ifc from Archicad, which I dropped as an Ifc into the browser without the plugin. In only receive the terrain and not the walls and slabs.


bim-garage architectural ifc4 project base point.ifc - ifc-test | Speckle

any ideas?

reason for using an ifc → we’re modeling elements with mulitple layers like walls and slabs as one element, when we push directly from archicad, we can’t split the geometry, that’s the reason, why we do an ifc and drop it then to speckle.

Hi @Manuel_Emmenegger ,

You’ve stumbled across a bit of a nasty gap in our transition from v2 (legacy) connectors to our next gen (v3) connectors.

The IFC file import logic now produces v3 data, which is only consumable in our v3 connectors. (see our announcement of this new IFC importer)


We are close to having our first alpha release of the next gen grasshopper connector, which should be able to receive the current IFC import data without missing elements.

We should have our first alpha release out sometime soon. So, you’ll have to wait for this unfortunately :person_bowing:

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As we mentiond in our announcement of this new IFC importer, there is a temporary mechanism to trigger the old v2 IFC importer logic, if you name your files .legacyimporter.ifc before upload.

You may have more success with receiving this in v2 grasshopper connector.
However, the structure of the data from the v2 IFC importer is very different from the new v3 importer.

I should also mention that this option will not be available for very long. We promised to keep it active for 4 weeks, which has now been exceeded. We will likely remove the logic soon. But for this week, it may provide you with a temporary solution until we have a proper v3 grasshopper connector.

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Thank you for the great explanation, then I’ll hope for the future😅.

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