m12k
Reminds me of this writeup that I read recently about
using a different noise function (not Perlin) to emulate
terrain erosion:
https://blog.runevision.com/2026/03/fast-and-gorgeous-eros
io...
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neomantra
Really nice exploration, and their other posts are
interesting too!We used Perlin noise for demos of our
Golang/BubbleTea terminal Glyph heatmap widget and then
later with our Picture widget.Live WASM demos of the
Golang terminal
programs:https://nimblemarkets.github.io/ntcharts/demos/he
atmap-perli...https://nimblemarkets.github.io/ntcharts/dem
os/heatpicture-p...
Press 't' to switch between glyph/image modes
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rikroots
It turns out that adding noise to gradients is a really
useful thing to do - so many new effects can be created
with just a few additional parameters. Sadly, CSS and
Canvas API gradients (linear, radial, conic) are very
basic implementations (and SVG is not much more
advanced).Recently I did some work to add software
gradient enhancements to my canvas library. Because these
run on the CPU rather than GPU they're computationally
intense, but still worth the effort just to see what can
be done with different spreads (pad, repeat, reflect,
transparent) and noise engine operations inserted while
calculating stuff like gradient color selection, and pixel
positioning.Linear gradient demo test -
https://scrawl-v8.rikweb.org.uk/demo/canvas-003.html
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mvanga
Author here. I wrote this many years ago (2017?) while
exploring techniques to create art that I could put up on
my walls :-) If you enjoyed this article there are more
similar ones linked on the main page: https://sighack.com/
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neuropacabra
This is super nice article. Will revisit this one more
time and try that out as well. In the age of AI slop, it
is such a pleasure to read actual people blogs about what
they do and are passionate about. Thank you this one!
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tehrash
Great write up! I also dove in to this topic a while ago
over at
https://damoonrashidi.me/articles/flow-field-methods, but
putting the live processing sketches in was a very nice
touch! Good job, and nice outputs!
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srean
Very beautiful.I am a complete newbie, so I might be
asking about something obvious -- does anyone know how
some of these would relate to plotting random Polya vector
fields ?For example, one can take a sum of complex
rational functions of the form f_i(z) = r_i / (z - p_i)
where (r_i,p_i) are complex numbers drawn from some random
point process, say a generalized Poisson one.One needs to
plot the conjugate of sum_i f_i(z).EDIT: so many lovely
pages pointed to in the comments !
Let me convey collective thanks to all, rather than
clutter this page with individual thanks.@ttctciyf you are
marked dead. Not sure why.
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atulvi
My old work using perlin noise
https://a.tulv.in/noise-planets.html
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> srean
Please make an HN post out of your generative bad hand
writing. Very cool.
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ameon
some beautiful effects and good ideas. My favs are
iterations 8, 20, 25
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