I have a CityGML with elevattion/altitude egm96.
I would like to convert it to wgs84 - in ion I choose clampToGround and Cesium World Terrain.
As a result the buildings are over the terrain - using the adjust height sandcastle, I see that it is the original height.
What is the purpose of the clamptoground option - I expected, that my model is drapped on the Cesium World terrain or hs the heights of the world terrain and not the addition of both?
Has anyone a solution ?