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bntr

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投稿

Show HN: Sfera – sliding puzzle in curved space (open-sourced)

github.com
2 ポイント·投稿者 bntr·2 か月前·0 コメント

Show HN: Visual Lambda Calculus – a thesis project (2008) revived for the web

github.com
49 ポイント·投稿者 bntr·4 か月前·9 コメント

Show HN: Using Strudel to control dance animations

github.com
2 ポイント·投稿者 bntr·6 か月前·0 コメント

Show HN: Reverse perspective camera for OpenGL (Three.js)

github.com
52 ポイント·投稿者 bntr·8 か月前·8 コメント

コメント

bntr
·2 か月前·議論
[dead]
bntr
·4 か月前·議論
Duplo is also compatible with regular Lego. We used Duplo for the big structure and Lego on top for details. Great way to build huge stuff quickly.

https://upload.wikimedia.org/wikipedia/commons/0/04/LEGO-kom...
bntr
·4 か月前·議論
Thanks! I liked the pics here: https://piedeleu.com/posts/diagrammatic-lambda-calculus/

I'd love to see them smoothly animated.
bntr
·4 か月前·議論
Seems like it went to the wrong post.
bntr
·4 か月前·議論
I like this catalog: https://github.com/prathyvsh/lambda-calculus-visualizations

And it seems that John Tromp's diagrams originate from David C. Keenan's Mockingbird (1996),

and Bubble Notation comes from Wayne Citrin's Visual Expressions (1995)
bntr
·4 か月前·議論
You can also construct your own puzzles and share them via URL.

Example: https://bntre.github.io/visual-lambda/#workspace=H4sIAAAAAAA...
bntr
·4 か月前·議論
For comparison: factorial(3) visualized in two different notations.

John Tromp's Lambda Diagrams (via 2swap): https://www.youtube.com/watch?v=RcVA8Nj6HEo&t=1346s

Bubble Notation: https://www.youtube.com/watch?v=aRgu8S3Pnb8
bntr
·7 か月前·議論
A tiny experimental "continuous-motion" Life glider I once made - an artistic take: https://bntr.planet.ee/lj/glider.gif
bntr
·8 か月前·議論
Exactly. Reversing the z-test is one way to get a reverse-perspective effect, but it doesn't allow for a smooth transition between projections (like dolly zoom).
bntr
·8 か月前·議論
For an extra dose of nausea, there's also a cross-eye stereo version: https://bntr.planet.ee/temp/rp/

(Alt + mouse wheel changes the eye distance)
bntr
·8 か月前·議論
No performance hit - it's just a custom projection matrix. The rest of the rendering pipeline works exactly the same as with a normal camera.
bntr
·8 か月前·議論
Great visualization! It would be good to add some fog for a better perception of 3D.
bntr
·8 か月前·議論
Once I made a transition between two ditherings: https://github.com/bntre/dithering-gradient-py
bntr
·10 か月前·議論
Another notation showing the construction of the predecessor function: https://www.youtube.com/watch?v=CWzn2ucPMdg
bntr
·10 か月前·議論
The most complete catalog I've found: https://github.com/prathyvsh/lambda-calculus-visualizations