Is there such a thing as an extension of Feynman diagrams into three dimensions?
Canonical Feynman diagrams use one space and one time dimension to visualize processes involving elementary particles in space-time. This is very convenient for presenting them on a two-dimensional surface, such as in an academic paper.
It seems to me that with computer displays one could now employ two space and one time dimension in three-dimensional Feynman diagrams, which could be rotated on a computer screen, etc. I'm sure that this is technically feasible. I am less sure that there are relevant processes whose presentation would sufficiently gain in substance from showing two spacial dimensions instead of one, so three-dimensional Feynman diagrams (or whatever one would call those) may amount to a solution without a problem.
In terms of answers to the question I would appreciate pointers to academic papers or visualization tools, if there are any.