I had a look at your scene.Any reply on this? This is one of the last things holding up the plugin for Revit.
What do you mean by a "rectangular light" please? I don't see these as options in Revit. My understanding is that light sources come from the Family->Lighting->Architectural->Internal->Floor Lamp, etc. These objects do not provide geometry when accessing via the Autodesk recommended geometry access method (the IExportContext). You can see the Family display of the light here...Also, I would prioritize support for rectangular and circular lights with photometric files. All other light sources are a bit sketchy.
They are using a completely different method to access the light geometry to what the plugin uses. The plugin uses the method recommended by Autodesk at https://thebuildingcoder.typepad.com/blog/2013/07/graphics-pipeline-custom-exporter.html which for me is not returning any emitter geometry.It seems people are trying to export the light, without the Light Source Geometry. Would it not be easy to export just the light geometry and use that?
Yes, this is the recommended way of adding light emitters to the scene.If I have a light instance family, I use a flat geometry say 50mmx50mmx2mm (unfortunatly 2mm is thinnest you can create in Revit)
to this family, I would apply ies files and make the opacity 0
This works for me on any type of light.
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