VR Terrain Provider not working

My current Cesium Viewer implementation using the Terrain Database is no longer working . . .

I tried the code from Cesium.VRTheWorldTerrainProvider page and I can’t seem to get it working.

https://cesium.com/learn/cesiumjs/ref-doc/VRTheWorldTerrainProvider.html

If I remove the Terrain call, the map portion works but no terrain . . .

Adding the code from the Cesium page gives error . . .

Hi @tzgardner,

Oh no! The entire https://www.vr-theworld.com/ domain appears to 404. The service may no longer be available.

In the meantime, could we suggest any alternatives? What are your requirements?

I guess whatever would be the easiest to implement based on my existing code.

We have a tutorial for using Cesium World Terrain. Cesium ion is free for non-commercial use cases and internal development.

I grabbed the default access token and tried the quick start code but that failed.