With LAZPoint 1.40 or greater, you can import, and export .ASC files. This gives you an easy workflow to get any LAZPoint point-cloud, up, into SketchFab.

This shows an example of a Lidar file I imported into c4d, exported, and uploaded to SketchFab. You can even view this on a VR headset. ( if you have one.)

Autzen lidar scan by CinemaPlugins on Sketchfab

This video shows you how to easily get your scenes, as point clouds, up into sketchfab.

DEM Earth to LAZPoint to SketchFab from CinemaPlugins.com on Vimeo.