The tutorial for 3d point cloud @ https://github.com/3DiVi/nuitrack-sdk/blob/master/doc/Unity_Point_Cloud.md is out of sync with the tutorial scene in the unity package. The step-by-step instructions’ “Update()” method is old, the unity package tutorials work fine.
Thank you for paying attention to this. Indeed, some parts of this tutorial are outdated.
We will update it soon