[danwills]

I think you're right about the possibilities here and I love the idea and have thought similar things myself too, but to me the inclusion of a 3D element should probably be a format, not necessarily locked into any specific app such as Blender. Maybe (Pixar) USD is one possible format that could be used for general 3D interchange for this kind of thing?

[redox99]

The blender thing was just as an example. Of course it would be possible to convert whatever the output of the model is, to whatever software you want to plug it in.