Point cloud upside down in three.js
I have a problem regarding viewing point clouds (captured with matterport scenes) in three.js. When I export the point cloud to three.js the whole scene is upside down. I fixed it with a small tool in three.js, so I can relocate the point cloud. But I am know interested why and which coordinate system uses matterport scenes? As far I know three.js has a right handed system with the postive z-axis pointing to you.
Thank you for your help.