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holg

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投稿

Show HN: AutoLISP in Rust/WASM, reused to script GLDF and IFC file formats

gldf.icu
4 ポイント·投稿者 holg·26 日前·3 コメント

Show HN: Browser-based light pollution simulator using real photometric data

iesna.eu
44 ポイント·投稿者 holg·2 か月前·20 コメント

Show HN: Pure Rust IFC/BIM Viewer in the Browser via WebAssembly

bimifc.de
2 ポイント·投稿者 holg·4 か月前·0 コメント

Show HN: AutoLISP interpreter in Rust/WASM – a CAD workflow invented 33 yrs ago

acadlisp.de
137 ポイント·投稿者 holg·7 か月前·44 コメント

Show HN: Rust/WASM lighting data toolkit – parses legacy formats, generates SVGs

eulumdat.icu
52 ポイント·投稿者 holg·7 か月前·5 コメント

[untitled]

1 ポイント·投稿者 holg·7 か月前·0 コメント

コメント

holg
·25 日前·議論
[dead]
holg
·26 日前·議論
Forgot to mention: it is all Open Source and on crates.io: github.com/holg (acadlisp, bimifc, gldf-rs)
holg
·26 日前·議論
As the title as well mentioned IFC, here how to create the Quonset Hut on bimifc.de (same engine as acadlisp.de)

(ifc-new) (ifc-set-project "Quonset Hut" "Airfield" "Hangar" "GF" "Engineer" "Corps") (ifc-storey "Ground Floor" 0.0) (ifc-add-slab 0 0 8 15 0.2 0 "Concrete Pad") (ifc-add-wall 0 0 8 0.15 4.0 0.2 "Front Wall") (ifc-add-wall 0 14.85 8 0.15 4.0 0.2 "Rear Wall") (ifc-add-door 3 0 2.0 0.15 3.0 0.2 "Hangar Door") (ifc-add-window 1 14.85 1.5 0.15 1.5 0.2 "Rear Window") (ifc-storey "Roof" 4.0) (ifc-add-roof-barrel 0 0 8 15 3.0 4.0 "Steel Arch")
holg
·26 日前·議論
Hi HN, author here. This builds on the very same AutoLISP Interpreter, i did for: https://news.ycombinator.com/item?id=46393271

The Lisp can be used to define the GLDF product in the LISP REPL, some files are in the wasm bundle, so for the demo you can simply: Click the [λ Script (Lisp)] Button and it will create the GLDF as defined in the LISP, and also start some Animation, tilting the light fixtures, changing Variants (and as such housing and light color) and some camera movement
holg
·2 か月前·議論
Love it, bcs i am infested, i would love to see it in Rust (even embedded bcs of even more RTOS), but hey thanks for sharing, love it to repeat myself :)
holg
·2 か月前·議論
it is the fantastic tool!
holg
·2 か月前·議論
That's the neat idea!
holg
·2 か月前·議論
Thanks, well i got more feedback, so i figured out it shall be done even better...
holg
·2 か月前·議論
Thanks for your interest :D
holg
·2 か月前·議論
i agree, sorry this is some edge-tech, so for safari it is a bit tricky, as it reports to have webgpu, but &force=webgl2 will do the trick. I am working on the fix to have webgpu behave properly on Safari
holg
·2 か月前·議論
Yup, so actually my take as well is, the scene itself is imperfect, i took some known and easy to implement one. So some scene, where some high building is illuminated up, would be desirable...
holg
·2 か月前·議論
That's the real good proposal. I must admit, my focus was on the street lights, which in general are already almost good, compared to what you mention Thanks a lot
holg
·2 か月前·議論
[flagged]
holg
·2 か月前·議論
https://iesna.eu/?wasm=skyglow_demo&force=webgl2, tested on wsl2 ubuntu, sorry linux machine in the office :D
holg
·2 か月前·議論
Ok, even so the quality degrades a lot, i added the webgl2 version, it shall load as fallback, if webgpu is not enabled, but can as well be enforced, to see the difference:

https://iesna.eu/?wasm=skyglow_demo&force=webgl2
holg
·2 か月前·議論
I should have mentioned: WebGPU is needed, on Safari there is a bug in the Bevy Overlay, so you only see flickering (very annoying!) This is an upstream issue (on to it) So FF and Chrome works fine (if WebGPU is enabled!)
holg
·2 か月前·議論
Thanks for the information, i should have mentioned, webgpu is explicitly used here, and this might be the issue! Bevy's usage of WebGL2 is not that mature, and i use Bindless rendering (from my own contribution)...
holg
·4 か月前·議論
i miss the Apple GPUs, specially bcs for higher VRAM they compute quite well, not even talking about power efficiency. For my use-cases very often the low VRAM is the limiting factor, where the Apple GPUs often shine, the Apple Tax if seeing this way is nowadays quite low :D
holg
·4 か月前·議論
interesting proof of concept, in php, who would have thought :D
holg
·5 か月前·議論
Sounds interesting, will give it a try, thx for sharing the Code as well