Hi, Away3D uses Triangles to render geometry. I recommend using Triangles from the start in Blender to model your objects. On the fly tripple in Away3D might not work as expected or at all. To test your models, but also prepare them for Away3D use, look into using PreFab. This is a gift from god ( aka Fabrice ) and allows you to preview and tweak your models and even export AS3 classes.
For the sphere thing. I would probably use the Away3D primitive and build the mosaic in a single bitmap assigned to a BitmapMaterial. You can then extract the uv coordinates of the click (in the MouseEvent3D) to determine which image was clicked. ath. Jerome.
