My use case is rendering 3D infrastructure models (eg roads, highways) in Cesium.
Obviously a road model that sits at ground level can clip with an existing terrain dataset.
Is it possible at all with Cesium to slice out or remove sections of terrain (via polyline or some other method) such that I can integrate my replacement models with an existing terrain?
If not, has anyone else solved this problem via other methods? Most of the Cesium examples I've seen have involved simply displaying models on top of terrain. (eg box buildings) without any proper integration.