Source code: https://github.com/Leftium/fx/blob/main/src/routes/fire-plas...I made this naive fire effect as realistic as possible; arguably more realistic than some simulations based on real fire fluid dynamics[1]. The naive algorithm uses a kernel to simulate convection, diffusion, and cooling of heat. Described in more detail by Joakim Hårsman[2]. Also see working demo of the OG fire algorithm by Justin Greisiger Frost[3]While canvas + CPU gets surprisingly good performance, this effect would probably run much faster on the GPU. On mobile, this version is sized to work better: https://fx.leftium.com/fire-plasma?standardSize=0 text=LeIn my improved version, flames lick the bottom of the floating text. This is my favorite part. It was totally unexpected and just emerged from the algorithm. Compare to Joakim s version by changing the text: https://fx.leftium.com/fire-plasma?text=%E2%97%AFMajor improvements over prior art:- True-color fire gradient/palette with transparency looks decent over non-black backgrounds : https://fx.leftium.com/fire-plasma?bgColor=- Fire seeded with perlin noise + brownian fractal movement: fire is overall less uniform while avoiding random mess at base of fire: https://fx.leftium.com/fire-plasma?fireSeedIndex=3- More complex fire kernel for more realistic looking fireThis was one of the first projects I have recently worked on without the assistance of a coding agent. I only chatted with LLM s a few times to get ideas and help with type errors. As a result, I feel this project took more time, but the code is more succinct/hand-crafted.---I wonder if anyone can find other pleasing values for the fractal noise seed. The values can be adjusted via URL params like this: https://fx.leftium.com/fire-plasma?octaves=4 lacunarity=2 ga...You can also view the perlin noise by itself using this URL: https://fx.leftium.com/fractal-noise?octaves=4 lacunarity=2 ...For a description of octaves, lacunarity, gain, etc: https://gamedev.stackexchange.com/a/197862/229[1]: https://www.escapemotions.com/experiments/fluid_fire_3/[2]: https://ghostinthecode.net/2016/08/17/fire.html[3]: https://jdfio.com/pages-output/demos/x-mode/