[lucideer]

I understand, as others have said elsewhere, that it's just an experiment, and as such cross-browser support isn't as much of a priority - it's not a product that people need to work. I've made plenty of experiments myself that only work in one browser.

However, for many experiments like this, they're doing something somewhat novel using a tech a single browser has just introduced - in those cases, it's limitations that lead to lack of interop. In this case, it just seemed a bit disappointing. That is subjective of course, but it was my - I think warranted - first reaction.

[Gammarays]

  much more impressive drawings have been created than this.
  The added animation doesn't add much.

You say it's subjective, but when you start posting things like the above, you're deeming this project as unworthy of being on HN just because you feel it's "novel". The OP never claims the technology is new or cutting-edge, so why even bring that up? And there's really no need to link other css artworks in an attempt to undermine the work at hand.

[lucideer]

You could be right. I wouldn't conflate "novel" with "new or cutting-edge" (one can still do novel things with old tech) but even just limiting it to novel may be unfair. I guess this is just something I associate with HN submissions from experience - many things posted here really genuinely blow me away. This didn't. The normal reaction to that might be to just say nothing, but given the browser support issue, I commented.

Given that I was additionally mis-attributing the non-cross-browser functionality to the author (see edit - it works fine in Firefox), my own subjective reaction to it is probably that little bit more unfair again now.

[iamdave]

OP provided the source. Why not make a pull request and make those implementations and submit then back? Would be a good learning opportunity for some, no?