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Welcome to the Filmulator wiki!
Filmulator is a program that implements tonemapping based on the process of film developing.
Basically, using the data captured by your camera in a raw file, it "exposes" "film", thus "activating" "crystals" that "grow" when we apply "developer".
The key here is that the developer, which in real life is an aqueous solution, gets locally consumed according to the number of crystals at a given location. This gives negative feedback, reducing global contrast.
At the same time, because it is in a liquid form, the process of diffusion helps accentuate edges in a very natural way, leading to local contrast increases with only the most subtle of haloing.
If you would like to learn more about the film model we based Filmulator on, you can read our article on How Film Works. If you are interested in hacking on Filmulator, you may find the Program Structure page of use. If you are looking for something to do, please check out the Possible Optimizations page. For suggestions on how to make the most out of your photos, the Tips for Usage page might be helpful.