slam-crappy
procedural-gl-js
| slam-crappy | procedural-gl-js | |
|---|---|---|
| 1 | 11 | |
| 0 | 1,266 | |
| - | - | |
| 0.0 | 0.0 | |
| over 1 year ago | almost 3 years ago | |
| JavaScript | JavaScript | |
| - | Mozilla Public License 2.0 |
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slam-crappy
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Ask HN: What Are You Working On?
I've been lazy but I've been working on my own uneducated SLAM attempt. It's for navigating a robot inside my messy apartment. Progress has been slow. I also made some bad decisions but it's a fun learning project.
https://github.com/jdc-cunningham/slam-crappy
procedural-gl-js
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Recreating Real-World Terrain with React, Three.js and WebGL Shaders
Nice writeup, I always like it when the shaders are highlighted like this. I got started in a similar way 7 years ago and have been making 3D terrains with THREE.js & WebGL since.
The real fun begins when you need to implement some sort of Level-of-Detail system and streaming in data to give the illusion of high detail everywhere without sacrificing performance.
Last year I released an open-source framework (https://github.com/felixpalmer/procedural-gl-js) for creating 3D terrains for web applications, you can see Uluru here: https://www.procedural.eu/map/?longitude=131.036&latitude=-2... (unfortunately the aerial imagery from our default provider isn't as high resolution as other places in Europe)
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Visualization of 40M Cell Towers
Great visualization and approach with compressing the tile data. Do you have a comparison of how much smaller the payload ends up being compared to simply sending PNG files?
I use PNGs to encode elevation data in my 3D mapping library (https://github.com/felixpalmer/procedural-gl-js/) and this does a pretty good job of compressing the data, for example in the ocean the PNG files are also very small as the image is mostly black. Different use case I now as your data is much more sparse, but I wonder how close the PNG compression would be compared to your approach.
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React Component for 3D Maps
Yeah, the React parts of this are very minimal. I'm not really sure what using it gets you, since it just manages a single div.
The _actual_ library that does all the work is here: https://github.com/felixpalmer/procedural-gl-js
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Ask HN: What Are You Working On?
- Tiny filesize means library is parsed fast. Package size is less than THREE.js thanks to code stripping
Check it out on Github: https://github.com/felixpalmer/procedural-gl-js/
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Mountain Peaks in WebGL
The imagery comes from the Orthofoto dataset on https://www.basemap.at/ - the actual texturing is done by the Procedural GL JS library https://github.com/felixpalmer/procedural-gl-js
What are some alternatives?
atbswp - A minimalist macro recorder
maplibre-gl-js - MapLibre GL JS - Interactive vector tile maps in WebGL2
mapbox-gl-js - Interactive, thoroughly customizable maps in the browser, powered by vector tiles and WebGL
suncalc - A tiny JavaScript library for calculating sun/moon positions and phases.
CoinBLAS - Bitcoin blockchain graph analysis with the GraphBLAS.
rnnoise - Recurrent neural network for audio noise reduction
linaria - Zero-runtime CSS in JS library
ffprobe-wasm - A Web-based FFProbe. Powered by FFmpeg, Vue and Web Assembly!
io-ts - Runtime type system for IO decoding/encoding
ctl - My variant of the C Template Library
auto-editor - Auto-Editor: Effort free video editing!