I’m using the REST API to upload OBJ models for tiling to 3D Tiles. The OBJ models, that I’m using, are not centered in local coordinates around (0,0,0). From what I can tell, when Cesium Ion tiles the OBJ models, it first centers the model and then places it at the desired location specified in the API call to create the 3D tiles.
I need to find the translation from the source models origin to the new origin generated via the API. Which algorithm, does the Ion API use to center the models?