**I have a pile of over 8k KML+DAE files of buildings that I created by exporting multipatch features from ArcGIS Pro. I can upload these to Ion and it creates a single Cesium 3D Tiles tileset from them, which is totally awesome. **
The problem is, the KML files all specify zero height, and the generated tileset has them directly on the ellipsoid even if I choose to clamp to Cesium World Terrain in the UI (shown here with just a single building instead of all of them):
I’ve tried various tweaks to the KML files, but can’t get clamping to happen. The Altitude in the KML is honored, so I could do it manually, but I wonder if I’m doing something wrong. Any ideas?
I’m happy to (privately) provide one of the buildings if it helps to reproduce the problem.
Unrelated note while I have you: with 8k files, it’s necessary to upload them to Ion by dragging/dropping their directory into the Ion UI. If I click Browse and multiselect them all, they never (in the time I’ve been willing to wait) appear in the Ion UI.