http://www.geonak.com/mytuts/tuts/mia_roundcorners_Maya.pdf

I am using this old tutorial to apply the mia_roundcorners mental ray node to my materials, since there is a lot of geometry and bevelling it directly would cost too much time.

However, after having applied it as described in the tutorial, Maya 2012 crashes when I try and render. Does anyone know how to solve this?

I found it keeps crashing when I use the mia_roundcorners node on Maya materials, but it does work when applied to their counterpart Mental ray materials. So I'll use those for now, but they are a little more work.