Tutorial] Geometry intersection shader - Game Engine Resources - Blender Artists Community
See intersecting objects - Modeling - Blender Artists Community
blender internal render engine - How can I get Freestyle lines to show around two objects where they intersect each other? - Blender Stack Exchange
modeling - How do I create a vertex at the intersecting point of two intersecting edges without addon or scripts, no faces involved? - Blender Stack Exchange
How to introduce an edge where two faces intersect - Blender Stack Exchange
Surface Intersect in Blender - YouTube
Issue with Cycles rendering intersecting transparent objects - User Feedback - Blender Developer Talk