Thing to remember that like much in engineering one door leads to another, I have a well thought about systems engineer working for me who started out as a CAD guy, he just absorbed other information from the work he was doing and moved on. I started out working with radios and now lead a bunch of code monkeys (sorry software and process engineers :) ), and so it goes on....

At one time 3d stuff was part of my job (using 3ds max in a fast prototyoing team for product visualisation) now it's a hobby only again, the pro bit has gone - but it was great for a little while to have a hobby of many years and get paid for it :), I still make the odd extra bit of cash outside of the day job doing this but I don't actively pursue it - it's generally favours for people who know me.

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Toolset: Blender, GIMP, Indigo Render, LuxRender, TopMod, Knotplot, Ivy Gen, Plant Studio.