Show HN: Sfera – sliding puzzle in curved space (open-sourced)github.com2 points·by bntr·2 maanden geleden·0 comments
Show HN: Visual Lambda Calculus – a thesis project (2008) revived for the webgithub.com49 points·by bntr·4 maanden geleden·9 comments
Show HN: Using Strudel to control dance animationsgithub.com2 points·by bntr·6 maanden geleden·0 comments
Show HN: Reverse perspective camera for OpenGL (Three.js)github.com52 points·by bntr·8 maanden geleden·8 comments
bntr·4 maanden geleden·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 maanden geleden·discussThanks! I liked the pics here: https://piedeleu.com/posts/diagrammatic-lambda-calculus/I'd love to see them smoothly animated.
bntr·4 maanden geleden·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 maanden geleden·discussYou can also construct your own puzzles and share them via URL.Example: https://bntre.github.io/visual-lambda/#workspace=H4sIAAAAAAA...
bntr·4 maanden geleden·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 maanden geleden·discussA tiny experimental "continuous-motion" Life glider I once made - an artistic take: https://bntr.planet.ee/lj/glider.gif
bntr·8 maanden geleden·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 maanden geleden·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 maanden geleden·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 maanden geleden·discussGreat visualization! It would be good to add some fog for a better perception of 3D.
bntr·8 maanden geleden·discussOnce I made a transition between two ditherings: https://github.com/bntre/dithering-gradient-py
bntr·10 maanden geleden·discussAnother notation showing the construction of the predecessor function: https://www.youtube.com/watch?v=CWzn2ucPMdg
bntr·10 maanden geleden·discussThe most complete catalog I've found: https://github.com/prathyvsh/lambda-calculus-visualizations
