As you know, Design Review can open almost anything and save it as DWFx. Here’s an idea I came up with for document aggregation: How to re-path NWC file links (basically just close NWF, slightly rename, open NWF, dialog will walk you through it):. If you do a search using the Find Comments tool, but don’t enter any search critera, you will be presented with a detailed history of your interaction with the project – very helpful. after reloading back through into the project, this also allowed the export to continue.Ī: Object reference not set to an instance of an object.Īt .CustomExporter.Export(View3D view)Īt 3DView(View3D view_3d, StateDictionary state_dict)Īt NavisWorks12.LcIRevitBase. Using “uncut” in the Family Editor to uncut the voids from everything, and then using ‘cut’ to cut them again. 
Try turning off categories one at a time to find out which Category the problem geometry resides in.
Set Level of Detail of categories in V/G to the setting you desire (can be Fine). Set Level of Detail of view to something other than Fine. Other suggested workarounds (did not work in this instance): Obviously, this is not really an option if you are doing lighting analysis or using the lights for rendering in Revit or 3dsMax etc: The only real fix (at this stage) is to open each Lighting Family and untick Light Source. Also turn off light source as in step 1 above. Untick “try and find missing materials”. 
Navisworks Exporter settings/File Reader/Revit.Append to a brand new NWF and see if the lights show up in Autodesk Rendering.Look for a light source subcategory in your NWC export view.Set it and walk away from your PC for a bit.
My best result was using Time Stretch 3.0x and Repeat every 0.8 seconds. Set up a macro to delete lights (see the Screencast below). When it “Can’t resolve external references” for each. Install MouseController (I used choco install mousecontroller). You could also down-save to 2013, delete the lights in Presenter, then save-up to 2015, but that seems a little too hacky, even for me. The immediate workaround is to use Shaded mode with Headlight only, as this ignores Light sources. This is because Navisworks 2015 does not allow you to delete multiple light sources at once (sadface), and it doesn’t allow you to “Clear Palette” like Presenter did. One way to get rid of all these light sources is to use a macro recorder to delete them all. Press and hold the Delete key on the keyboard – it will rapidly delete lights out of the Navisworks model. Update: scroll to the bottom of the Autodesk Rendering, Lights pane and select the last entry.
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