Hi everyone, I created a few new visualizers

[StePet]

I had a bit free time and learned how numeric solvers work. Come over to the FastLED subreddit, the first model runs already on an ESP32, so on a Teensy this stuff will fly.

Or check out my latest experiments, I documented all of it on Reddit.

Here is first working C++ code.

Emergent Ring of Fire

FluidSim - Smoke Around Obstacles

Fire - a Numeric Solver for Velocity, Temp & Smoke

Fluid Simulation for LEDs: 2nd iteration of a Navier Stokes Solver

FluidSim with a Directional Line Emitter

Here on a small 22x22 LED matrix:

Fluid Sim Test 2 (260427)

Here a simple test on a 48x32 LED matrix. Still over 30fps on an ESP32.

FlowFields Fluid Sim 260428

[StePet]

Fluid Simulation: 2D Navier Stokes Solver

[StePet]

FluidSim for FastLED R&D

Over the weekend I build some basic obstacle handling and also improved the colormapping.

It is not perfect, but it is fast.

Meditation - Realtime Visuals

[StePet]

How about flow maps to direct the advection direction in any way you want?

Here a short commented video demonstartion.

Fluid Simulation for LEDs: Advection guided by Flow Maps

[StePet]

Is Louis still around here?

[Louis]

Hey Stefan, I’m around just not active. I’ve been watching what you’ve been posting on the Fastled subreddit, very impressive! I’m taking a multi year pause on LED stuff, but plan to get back to it eventually. Excited to see what you come up with next!