Periodic Spaces

Postedabout 1 month agoActive25 days ago

surprisetalk

37 points

8 comments

ianthehenry.comOtherstory

informativepositive

Debate

20/100

MathematicsGeometrySpatial Reasoning

Key topics

Mathematics

Geometry

Spatial Reasoning

Discussion Activity

Moderate engagement

First comment

Peak period

132-144h

Avg / period

Key moments

01Story posted
Dec 3, 2025 at 1:03 PM EST
about 1 month ago
Step 01
02First comment
Dec 9, 2025 at 3:28 AM EST
6d after posting
Step 02
03Peak activity
8 comments in 132-144h
Hottest window of the conversation
Step 03
04Latest activity
Dec 9, 2025 at 6:48 AM EST
25 days ago
Step 04

Generating AI Summary...

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Discussion (8 comments)

Showing 8 comments

kscarlet

25 days ago

2 replies

Cool language! What language and library is this?

foota

25 days ago

Looks like a lisp? Here's the library I think they're using (and wrote): https://github.com/ianthehenry/bauble

josters

25 days ago

This seems to be the article's author's own language Bauble[1], "a toy for composing signed distance functions in a high-level language (Janet), compiling them to GLSL, and rendering them via WebGL"[2].

[1]: https://ianthehenry.com/posts/bauble/building-bauble/ [2]: https://github.com/ianthehenry/bauble

omnicognate

25 days ago

1 reply

What's an SDF?

iainmerrick

25 days ago

Signed Distance Field

NKosmatos

25 days ago

Just opening this page is a "heavy" benchmark for your PC/browser :-)

yakbarber

25 days ago

Huh

ghusbands

25 days ago

A simpler way: You can avoid sampling neighbours by clamping the ray-march step so it never moves further than the current cell's boundary (plus a tiny epsilon). That way, you only cross into adjacent cells at the edge and avoid the 8 to maybe 26 extra SDF samples. (This only works if the geometry is entirely contained within each cell.)

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ID: 46137772Type: storyLast synced: 12/9/2025, 10:50:42 PM

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