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