You can select via Object Picker an Object that serves as the Bounding Volume. When exporting, the exporter will automatically calculate the bv_center and bc_radius values. For the values it uses the largest dimension of the object divided by two (to make sure that even box-type bounding volumes could be used)
As described in this Discussion thread https://github.com/StjerneIdioten/I3D-Blender-Addon/discussions/135 the exporter can now export meshes as Bounding Volumes.
You can select via Object Picker an Object that serves as the Bounding Volume. When exporting, the exporter will automatically calculate the bv_center and bc_radius values. For the values it uses the largest dimension of the object divided by two (to make sure that even box-type bounding volumes could be used)
Here is a picture of the UI:![2023-04-08 17_10_47-Blender C__Users_ssnd2_Desktop_BoundingBox_BoundingBox blend](https://user-images.githubusercontent.com/3914410/230728763-31c6c4d5-2b06-4ec5-85de-4a8b3f6539a8.jpg)
Here is a test scene. BoundingBox.zip