SimLab OBJ Exporter is a plugin for Autodesk Revit.
SimLab OBJ exporter for Revit enables users to export Revit models as OBJ (Wevafront) files (*.obj). SimLab OBJ exporter supports exporting textures created inside Revit.
The plugin is supported on Revit 2013, 2014, 2015, 2016 and 2017 (64-bit).
Quick tutorial showing how to export OBJ (Wavefront) files from Revit