I've seen several libraries and applications for including Pd as the audio engine for Unity3D. How do I use a combo of Pd and Unity3D where I use only Pd for Unity "scripting"? I'd build the models in the Unity3D environment, though I'd like to programatically generate models in Pd at runtime too. But all the behaviors I'd like to control in Pd, not any Unity3D scripting language or system.

Basically I'd like to use Unity3D as the GUI environment for Pd patches, the way Pd can use GEM. How do I do that? How do I get access to any Unity3D API other than just the audio?