Hi David,
looking back at my comment It was pretty insensitive so sorry about that. For some reason when I think of fireworks they are moving.
You mentioned Natron which I don't think is being developed anymore. I use DV resolve free version on Linux but last vid I only used it for transitions, I did all animation in Gimp.
My setup has 2 graphics cards, 32gig ram and I can open multiple instances of Gimp. and overlay them perfectly if they were split from the same image series. I use 3 or 4 canvasses of over 1000 frames at the same time and interleave them into a new image. (Gimp in tabs) Gimp is also ram-based before it starts swapping to disk which is slow.
MathMap (old gimp plugin written in C) is not available on Windows or Macs but it will take one layer and make 1,000s automatically. It's good for revolving spheres, Droste sequences and miniplanets. It can also finish an animation exactly where it started. G'MIC can also be applied to multiple layers but I now use the stand alone version. I use the command line a lot. I like the command line. (I just alienated 99% of anyone reading this
![Smile :)](./images/smilies/icon_smile.gif)
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Windows is actually a sub-set of a backslash while Unix is a sub-set of a forward slash. Do they teach PPL that in graphics design class? I think closed-source OS's are designed to monetize the owners and hold-back the creators. Also FOSS is not a form of communism because its not a dictatorship as Rod rightly points-out.