New plugin available in the Autodesk Exchange App called CL3VER. It's an export plugin that exports the Revit 3D model hierarchy, geometry, materials and textures to the CL3VER platform where a browser based interactive 3D presentation can be created.
You must pay attention about the size and the number of polycounts of the original Revit project. There are some guidelines at the CL3VER plugin page.
Very simple and useful tool to showcase your projects to anyone