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Periodic Spaces(ianthehenry.com)
42 points by surprisetalk 7 days ago | 8 comments
ghusbands 2 days ago | parent | next [-]

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.)

kscarlet 2 days ago | parent | prev | next [-]

Cool language! What language and library is this?

josters 2 days ago | parent | next [-]

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

foota 2 days ago | parent | prev [-]

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

omnicognate 2 days ago | parent | prev | next [-]

What's an SDF?

iainmerrick 2 days ago | parent [-]

Signed Distance Field

NKosmatos 2 days ago | parent | prev | next [-]

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

yakbarber 2 days ago | parent | prev [-]

Huh