Troubleshooting: Missing Rooms/Spaces in Revit Exports

When exporting from Revit, LightStanza will automatically create calculation grids based on existing Room and Space definitions, provided the Room/Space is at least 2 square meters in floor area.  Smaller rooms will be filtered out to improve simulation speed, as such rooms often are not needed for lighting analysis.

If you find some Rooms/Spaces to be missing from a Revit export, check that they exceed the 2 square meter threshold and adjust accordingly.  If increasing the Room size in Revit isn't a good option, it's also possible to draw the calculation grids for the missing rooms manually, after exporting to LightStanza as shown below.