Two dimensional fluid simulator

Some experimental stuff. This time a fluid simulator and the source code can be freely used for anything as usual. Get it here: Fluid simulator.

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On top of releasing something I also removed something from this site for the first time ever. It was in the experimental stuff: a ray tracer. As the oldest experimental program on this site it was really crappy, the code was quite horrible and I just thought that it doesn't really provide anything useful for anyone. But don't worry, I have a newer and way better ray tracer available in the same experimental stuff section (actually have had for quite some time now).