I'm trying to create a (Cycles) material that's based on geometry without doing any UV unwrapping or vertex painting:

[![enter image description here](https://i.stack.imgur.com/mGSkc.png)](https://i.stack.imgur.com/mGSkc.png)

I'd like to created a map based on depth into the brain folds to control the glowiness. Are there any nodes or workflows that could let me achieve this?

**EDIT:** [![](https://blend-exchange.giantcowfilms.com/embedImage.png?bid=663)](https://blend-exchange.giantcowfilms.com/b/663/)