Export point cloud to Cesium 3D tiles

[edeng]

Hello,
How are you?

I faced a new problem trying to export a small LiDAR point cloud to Cesium 3Dtiles format.
I exported the file successfully from Agisoft and checked the file using Agisoft Viewer - till then all was OK.
When I imported it to Cesium, the point cloud became completely sparse and unclear, as like the points disappeared. Only when I extremely zoom-out I can see the points clearly.

Do you have any explanation for that? Maybe different configuration of LOD in Cesium and Agisoft?
I would like to mention also that our mesh 3Dtiles are shown great on Cesium.

Thank you very much!
Eden

[Dmitry Semyonov]

Hello Eden,

Cesium 3D Tiles export in Metashape 1.7 and earlier versions was optimized for maximumScreenSpaceError=1, which is different from default value used in CesiumJS. For optimal visualization in CesiumJS it is required to change maximumScreenSpaceError (it is set to 16 by default):
https://cesium.com/learn/cesiumjs/ref-doc/Cesium3DTileset.html

Starting from Metashape 1.8 Cesium tiles exporter is optimized for maximumScreenSpaceError=16, so no manual adjustment in CesiumJS is needed any more.

With best regards,
Dmitry Semyonov
Agisoft