In this Webinar that is hosted by Realsee, I go over the conversion of an .e57 file to an .rcp using CloudCompare, Autodesk ReCAP Pro and Autodesk Revit.
The LiDAR camera used is an Realsee Galois M2.
The Webinar includes point cloud optimization, cleanup, as well as topography generation.
Email me at [email protected] and I'll send you the step-by-step instructions.