Signed Distance Functions

Last modified: 2025-04-09 16:28:59

• Implementations
• Blender-like
• Resources

Implementations

Mine

The first SDF-based CAD program? (update: No.)

• Isoform

OpenSCAD-like

Driven by programming:

• https://github.com/deadsy/sdfx
• http://implicitcad.org/
• https://libfive.com/studio/
• https://forgedthoughts.com/
• https://www.mattkeeter.com/projects/fidget/
• https://bauble.studio/

Blender-like

These actually look really good, they just look like art tools rather than CAD:

• https://clavicula.link/
• https://sascha-rode.itch.io/sdf-modeler

Resources

• Inigo Quilez
• 2d polycurve SDF
• https://fornjot.app/blog/why-fornjot-is-using-boundary-representation/
• https://www.redblobgames.com/x/2403-distance-field-fonts/
• Unit Gradient Fields
• Dreams modelling
• Dreams Tech talk
• https://github.com/mkeeter/fidget/tree/wgpu-bytecode
• https://www.mattkeeter.com/research/mpr/keeter_mpr20.pdf
• https://lygia.xyz/sdf
• Matt Keeter talk
• https://www.cs.cmu.edu/~kmcrane/
• Interval arithmetic in GLSL
• https://dercuano.github.io/notes/sdf-notes.html
• https://t3kt.github.io/raytk/reference/operators/sdf/
• https://dercuano.github.io/notes/interval-raymarching.html
• https://ianthehenry.com/posts/bauble/building-bauble/
• https://cq.cx/dl/sketchflat-internals.pdf