I am converting 3d models from a CAD application into 3d tiles and viewing them in the Cesium viewer widget.
I am using the 3d-tiles-transform branch, and defining my bounding volumes as spheres.
I am defining the bounding sphere and my vertices in the same (world) coordinate system. Is that correct?
I find that if I have e.g. a simple triangle centered around the origin (and bounding sphere centered at the same place), it displays correctly in the viewer.
If I have the same simple triangle offset some distance from the origin (and the bounding sphere offset the same distance), in the viewer the geometry is rendered offset from and outside of the bounding sphere. (I have turned debugShowBoundingVolume on).
I am certain I am missing something obvious, but not at all certain what that obvious thing is...
I will follow up with sample data sets.