I wonder if a GPL that said you cannot redistribute this for a price equal to or less than the amount you paid for it.
So if you got it free, it is fair to redistribute free or charge for it or whatever. But if the original author sold it to you for $40, you must sell it for at least $41. There's no royalties; all that money is yours, it just means you can't compete with the original author on price alone.
Then AutoDesk would drop the money on the table, fork your code and develop new features in the same time, then bundle free Arnold, and every AutoDesk format. And then youare ruled out. This is the same as it's happening with AWS.
They may not be able to compete on prize, but as they got a much bigger budget, you are already out, unless they are very incompetent and you are not.
Also, this is assuming your initial software is worth "stealing", it has to be good enough first, which Blender is nowadays.
So if you got it free, it is fair to redistribute free or charge for it or whatever. But if the original author sold it to you for $40, you must sell it for at least $41. There's no royalties; all that money is yours, it just means you can't compete with the original author on price alone.
idk tho i gotta think about it