We use the WASM build of DuckDB quite extensively at Count (https://count.co - 2-3m queries per month). There are a couple of bugs we've noticed, but given that it's pretty much maintained by a single person seems impressively reliable!
Hey, if you click through to one of the example simulations you'll be able to change the visualization from waves to time-averaged power density, which should be closer to what you're looking for.
Thanks! If you navigate to one of the example simulations, you'll be able to change the instantaneous field visualisation to one of time-averaged power density, which sounds closer to what you're looking for.
The cool thing about the speed of WebGPU is that you can drag things around and watch changes in real-time, even if you have to average lots of simulation steps per rendered frame.
Good question! This is actually a numerical solver for a few coupled partial differential equations - the method in this context (electromagnetism) is called FDTD. It's implemented as a WebGPU compute shader.
You absolutely could do this using WebGL2 compute shaders too, but I thought it would be fun to try this newer API.
Author here - amazing how this old post comes back around! I know this book is a bit divisive with the big time jump, but you can't argue with the opening line.
Shameless plug - I've become a better engineer since then, and if you'd like to work with me check out this role I'm hiring for:
We use Pyodide at https://count.co and think it's pretty amazing! Congrats on the new release. I read about the snapshot support for Cloudflare workers and assumed it was a feature that Cloudflare had developed - the fact it may be coming to all users of Pyodide is great news.
If you're interested in interrogating dbt models using DuckDB, you may be interested in some new dbt features we've recently released at https://count.co
Me too! Other recent gadgets that have scratched the same itch are the Steam deck and folding phones, though nothing quite captures the feeling of the gadget experimentation going on back then.
Nice! I made a quick'n'dirty Typescript notebook with React + Plotly as a Matlab clone a few years ago. I was impressed with how everything you need to compile and execute TS was built-in to Monaco, using web workers etc.
We implemented a WebGL plot + text renderer for https://count.co - adding support for emoji was a pain. In particular you can't use normal SDF maps as for other monochrome characters, so there has to be a per-character flag in the fragment shader to interpret the texture correctly.