rapidyaml
libfive
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rapidyaml
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A convenient C string API, friendly alongside classic C strings.
The inability, or brittleness, to embed NUL bytes into the string, for once. Zeroed bytes can be valid as an internal bytes of a longer encoded character. And the inefficiency of tempting every caller to rederive the string length on every use, leading to such bugs as quadratic parsing behavior with sscanf. The extra register for an explicit length is a very minute price to pay compared to that.
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Funniest line of code you wrote while making a game?
Although you still have the other problem of sscanf, where read times can become quadratic.
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yaml-cpp VS rapidyaml - a user suggested alternative
2 projects | 5 Feb 2022
- Parsing can become accidentally quadratic because of sscanf
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Accidentally quadratic: When Python is faster than C++
Leading to eye-rolling problems like these: https://github.com/biojppm/rapidyaml/issues/40
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Hacker News top posts: Mar 1, 2021
Parsing can become accidentally quadratic because of sscanf\ (0 comments)
libfive
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OpenSCAD Survey - what programming language do you want to be added to app?
Guile/Scheme: https://libfive.com/
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Meta Releases Intermediate Graphics Library
You probably have already seen this, but I would take a look at libfive for inspiration
- Better OpenSCAD?
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Show HN: Make 3D art in your browser using Lisp and math
No; Bauble doesn't know how to "rasterize" SDFs into meshes; it only knows how to raymarch them. It's theoretically possible, but it's a pretty complex problem that would take me much too long to figure out and implement. So Bauble is relegated to just making pretty pictures for now. If you want to produce meshes using SDFs, check out https://libfive.com/
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Antimony – computer-aided design tool from the Lisp machine parallel universe
This is a mid-point in Matt Keeter's research.
Start at:
http://mattkeeter.com/research/thesis.pdf
then see:
http://www.mattkeeter.com/projects/kokopelli/
then Antimony (see the article at: http://hackaday.com/2015/05/29/otherworldy-cad-software-hail... ), then the current effort:
https://github.com/libfive/libfive
(and also see: https://www.gitlab.com/kavalogic-inc/tovero "a binding of Libfive to Common Lisp, including a standalone REPL-based viewer"[https://github.com/Irev-Dev/curated-code-cad] can be integrated with https://www.gitlab.com/kavalogic-inc/clive
Currently I'm using OpenSCAD (w/ BlockSCAD as a front-end: https://www.blockscad3d.com because I prefer a sort of visual representation), but have been stymied by the lack of file I/O (I want to write out G-code).
Still looking for a 3D modeling tool which is:
- a node or block editor
- Learning CAD on Linux
- OpenSCAD 3D rendering just got an order of magnitude faster
- CadQuery –- A Python parametric CAD scripting framework based on OCCT
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What happened Tovero (libfive bindings) and Clive (scene graph and 3D GUI) from Kavalogic and previously hosted on common-lisp.net?
From another random git commit I found it it seems the project moved to being hosted on gitlab.com under the account name "kavalogic-inc" but all the repos got deleted: - https://gitlab.com/kavalogic-inc
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Tovero 3D Modeling system - where is it?
A recent question on AutoCAD lisp pointed to the libfive C++ library with C bindings. It's GitHub page points to the Tovero 3D Modeling system (link on Gitlab). That project is not found on Gitlab.
What are some alternatives?
wasm3 - 🚀 A fast WebAssembly interpreter and the most universal WASM runtime
json-c - https://github.com/json-c/json-c is the official code repository for json-c. See the wiki for release tarballs for download. API docs at http://json-c.github.io/json-c/
jupyter-cadquery - An extension to render cadquery objects in JupyterLab via pythreejs
degasolv - Democratize dependency management.
libredwg - Official mirror of libredwg. With CI hooks and nightly releases. PR's ok
Vrmac - Vrmac Graphics, a cross-platform graphics library for .NET. Supports 3D, 2D, and accelerated video playback. Works on Windows 10 and Raspberry Pi4.
curv - a language for making art using mathematics
cxx - Safe interop between Rust and C++
fosscad-repo - Official FOSSCAD Library Repository
cadquery - A python parametric CAD scripting framework based on OCCT
JitFromScratch - Example project from my talks in the LLVM Social Berlin and C++ User Group
ctl - The C Template Library