Triangula
Creative
generative art
SHOW HN2021
296points
69comments
#117of 2,533 in 2021
Top 5%of 2021 by points
How HN took it
LovedMost comments that take a side are positive
17 positive, 18 neutral or asking, 1 mixed, 0 critical, out of 36 comments about the project. Thread score +0.47.
Idea: 11 for, 0 againstDesign: 6 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Impressive, polished UI that is easy to use
From 2 comments
I really like this. Others have already commented on the utility / impressiveness of the tool itself, but on a completely different front: you also put effort into making a…
chias on HNApart of very cool visual effect, the app got my attention as an interesting example of lightweight GUI use with Go. Another rabbit hole for today. Thanks!
imhoguy on HN
Attractive shading that preserves highlights and fine lines
From 3 comments
Thats pretty sweet shading. Love how it captures the sunlight reflecting on the buildings in the SF example without just averaging out those colors and making it look bland.
erwinh on HNI'm impressed it manages to preserve the frames of the man's glasses. Did you do that manually? Or does the algorithm somehow detect lines like that?
thomasahle on HNThanks for sharing! Interesting to see how the algorithm preserves thin dark lines like in the glasses or the face of the clown. One of my side projects produces similar images:…
ikkjo on HN
Cool generative art result
From 2 comments
This is great, especially the SF example as it reminds me of Brian Lotti's paintings [1] A common technique for painters is to establish areas of colour in the scene that are…
jmkd on HNLove it. There's a real use in generating cartographic representations of aerial imagery there I think.
willtemperley on HN
Objections
Triangles visible and aliased at higher compression
From 2 comments
Very cool. Images like this are fairly popular in woodworking for low poly pet art:…
scrooched_moose on HNThat's an interesting idea! I suppose it could be used for compression, although my intentions were for this to be a generative art project. I triangulated a 1988×1491 jpg using…
rh12503 on HN
Slow genetic algorithm compared with Delaunay methods
From 1 comment
My main concern is why the choice of a (slow) genetic algorithm vs a more traditional Delaunay triangulation algorithm?
trinovantes on HN
Requests
Export to SVG or vector format
From 2 comments
You could probably make it into an SVG file to reduce the size even more.
hapidjus on HNInstead of outputting an image, can you output the points and triangles, eg as an SVG? Could be fun to experiment with animation... especially with something like the astronaut,…
floatrock on HN
Limit to a region or palette
From 2 comments
For low-poly art, I wonder if there could be a way to only triangulate a specific area. (eg. only the pet and not the background) Also, if you need something less aliased, check…
rh12503 on HNI wonder if you can constrain the problem a bit more: say, limit the number of triangles that can be used; limit the color palette to a small set of colors. It would make for…
1024core on HN
Use as image placeholder or compression
From 2 comments
Looks cool! And might be useful for svg placeholders before lazy-loading larger images.
martini333 on HNaxe312ger/SQIP[1] does this effectively in low-quality image loading relying on the before-mentioned fogleman/primitive library. I think OP's project would be great to add as a…
gillesjacobs on HN
Questions
Is there a 3D or other export format?
From 1 comment
This is amazing! Is there any way to download this in a 3D file format?
rh12503 on HN
Why a genetic algorithm rather than Delaunay triangulation?
From 1 comment
My main concern is why the choice of a (slow) genetic algorithm vs a more traditional Delaunay triangulation algorithm?
trinovantes on HN
Alternatives named
Primitive (fogleman)
From 1 comment
This looks cool. It reminds me a lot of Primitive Pictures[0], coincidentally also written in Go, which supports other shapes besides triangles as well. [0]:…
clusmore on HN
esimov/triangle
From 1 comment
For low-poly art, I wonder if there could be a way to only triangulate a specific area. (eg. only the pet and not the background) Also, if you need something less aliased, check…
rh12503 on HN
Geometrize
From 1 comment
Similar project worth checking out is Geometrize [1] also available on GitHub [2] [1] https://www.geometrize.co.uk/ [2] https://github.com/Tw1ddle/geometrize
adrian_mrd on HN
Boxy SVG
From 1 comment
Also check out my web app Boxy SVG [1] which integrates both vectorization algorithms as "Triangulate" and "Primitivize" generators [2]. [1] https://boxy-svg.com/app [2]…
jarek-foksa on HN