Many non R&D-ish rendering software came from people doing experiments on Amiga. I believe 3D Studio, Lightwave, probably others, had their roots in Amiga demo/game/3d scene.
There were untold numbers of television shows edited with NewTek's Video Toaster - an Amiga product. Came out for PC later -- it was essentially an Amiga in a custom enclosure.
And Scala (a global leader in digital signage software) started out in 1987 on Amiga and only moved to PC in 1996 when Commodore went bankrupt.
https://en.wikipedia.org/wiki/Scala,_Inc
https://www.youtube.com/watch?v=seznQmDp2pU
http://www.midwinter.com/lurk/making/effects.html
http://www.geek.com/games/cgi-first-introduced-to-tv-in-baby...
I thought JJ Abrams mentioned that he used the Amiga for something in the 1990's but I can't find anything in Google.