Run the Mesh Import add-in in Revit.

Select an OBJ file.

Set options -- scale, Category, Material and orientation.

Categories available are Casework, Entourage, Furniture, Generic Models, Lighting Fixtures, Mass, Mechanical Equipment, Planting, Roads, Site, and Structural Framing.

Pick a point on the current work plane for insertion

The import may be moved and rotated as needed. It will take on the appearance of its Category & Material. It can also be rendered the same as other elements in Revit. To re-scale, simply undo or delete, then re-import using a different scale in the app's dialog box. The new shape may be copied freely in the project.

The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin. You may need to restart the Autodesk product to activate the app/plug-in. To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8.1/10) and uninstall as you would any other application from your system.

See https://truevis.com/revit-mesh-import for app details and to give feedback.

See http://revthat.com/preparing-meshes-for-import-to-revit-as-directshape/ for advice on preparing meshes for import into Revit.

• For English Language Revit
• There is some size limit. It can be worked around by simplifying one’s mesh, etc.
• Meshes should be manifold
• Some aspects of the OBJ format such as smoothing are not imported. This can be worked around by editing and exporting from mesh software like MeshLab
• Groups defined in the OBJ are imported as separate shapes
• Some meshes or data in OBJ files may be incompatible with Mesh Import
• Resultant shapes can neither be mirrored nor scaled in Revit