I want to realize the underground mineral function. Can cesium be realized?

I want to realize the underground mineral function. Can cesium be realized?
Recently received new requirements, required to complete the underground three-dimensional, seeking guidance

Underground rendering is something that’s been a requested feature for a long time, and while it’s on the radar, there’s no timeline on when Cesium will support this at the moment. This PR attempts to add underground rendering but it’s untested:

https://github.com/AnalyticalGraphicsInc/cesium/pull/6047

Has this issue been resolved?

在 2019年1月14日星期一 UTC+8下午10:23:58,Omar Shehata写道:

There has been progress on this if you look at the changelog for the upcoming CesiumJS release:

https://github.com/AnalyticalGraphicsInc/cesium/blob/master/CHANGES.md#fixes-wrench

You can follow this GitHub issue which will be updated when the feature is complete: https://github.com/AnalyticalGraphicsInc/cesium/issues/5665