spatial server that supports 3d tile (like geoserver)

CesiumJS
1

Is there a “spatial server” that can connect with “cesium js” and support 3d tiles? (like geoserver)

I want to visualize 3D data directly from “post gis” in closed network.

2

What type of data are you trying to visualize? If it’s any of the formats shown on this page:

https://cesium.com/3d-tiling-pipeline/

Then you could use the on-premise version of the Cesium ion server & 3D tiling pipeline:

https://cesium.com/docs/on-premise/