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Life & fun · December 16, 2015

hg_sdf

A glsl library for building signed distance functions

hg_sdf launched on December 16, 2015 with 7 votes. The site was still online in September 2026, 10 years on.

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What it does

This page hosts the hg_sdf library for building signed distance functions (or more precise: signed distance bounds). Those are a very elegant and flexible representation of geometry that can be rendered or otherwise processed. Roughly, coded SDFs are to triangle meshes or voxels what vector graphics are to pixels. Building them is not easy yet. This is a bit like writing svg files by hand. Except fun. This lib is the one that we used ourselves to make 64k intros like the timeless and on , straight from our version control system. Much of what we learned from those productions ended up in here. This includes the following items: All info on this page (except for the screenshots) can also be…from mercury.sexy

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