Show HN: Sfera – sliding puzzle in curved space (open-sourced)github.com2 points·by bntr·2 bulan yang lalu·0 comments
Show HN: Visual Lambda Calculus – a thesis project (2008) revived for the webgithub.com49 points·by bntr·4 bulan yang lalu·9 comments
Show HN: Using Strudel to control dance animationsgithub.com2 points·by bntr·6 bulan yang lalu·0 comments
Show HN: Reverse perspective camera for OpenGL (Three.js)github.com52 points·by bntr·8 bulan yang lalu·8 comments
bntr·4 bulan yang lalu·discussDuplo 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 bulan yang lalu·discussThanks! I liked the pics here: https://piedeleu.com/posts/diagrammatic-lambda-calculus/I'd love to see them smoothly animated.
bntr·4 bulan yang lalu·discussI like this catalog: https://github.com/prathyvsh/lambda-calculus-visualizationsAnd 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 bulan yang lalu·discussYou can also construct your own puzzles and share them via URL.Example: https://bntre.github.io/visual-lambda/#workspace=H4sIAAAAAAA...
bntr·4 bulan yang lalu·discussFor comparison: factorial(3) visualized in two different notations.John Tromp's Lambda Diagrams (via 2swap): https://www.youtube.com/watch?v=RcVA8Nj6HEo&t=1346sBubble Notation: https://www.youtube.com/watch?v=aRgu8S3Pnb8
bntr·7 bulan yang lalu·discussA tiny experimental "continuous-motion" Life glider I once made - an artistic take: https://bntr.planet.ee/lj/glider.gif
bntr·8 bulan yang lalu·discussExactly. 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 bulan yang lalu·discussFor 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 bulan yang lalu·discussNo 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 bulan yang lalu·discussGreat visualization! It would be good to add some fog for a better perception of 3D.
bntr·8 bulan yang lalu·discussOnce I made a transition between two ditherings: https://github.com/bntre/dithering-gradient-py
bntr·10 bulan yang lalu·discussAnother notation showing the construction of the predecessor function: https://www.youtube.com/watch?v=CWzn2ucPMdg
bntr·10 bulan yang lalu·discussThe most complete catalog I've found: https://github.com/prathyvsh/lambda-calculus-visualizations
