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.
Oh yeah, I forgot about VT. Reminds me of TVPaint, but NewTek rebranding of it wasn't for Amiga (its original platform). Fun times.
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