I have used Fire2012 with palette on multiple projects now, most notably two halloween staffs and a giant lantern I made. I’m now trying to make a small flame simulator using five leds - actually, three strips of five leds - and the fire simulation is too rapid for so few leds. It almost looks like police lights in a jar. I would like to have a much more “gentle” flame. Perhaps with the colors fading in and out a little more, rather than flashing on and off.
Anyone know of an existing sketch like that, or how I might modify the Fire2012 sketch to do it? I have played with different values of Cooling, Sparking, and frame rate, but can’t get anything even close to what I’m imagining.
I’d say start from scratch and experiment.
Maybe use 5 noise functions, one for each pixel down the strip. With a higher more flickery rate (for the brighter tips) at one end, and going to a progressively smoother (less noise fluctuation) function at the other end of the strip (for the darker more red base of the flame).
The beat functions with some random variables might work also.
Adding multiple noise and/or beat functions (with random variables in them) together could produce some rather flickery stuff.
Also, while experimenting, use the serial monitor (or serial plotter) to visually watch how changing values changes outputs. Being able to observe how smooth or varied an output is and in what ranges it’s falling can be quite helpful sometimes.
These might be of interest or provide some inspiration:
