5 ms·
The words are defined using Signed Distance Field functions -- a function that determines the distance to object's surface. It is quite simple to write down an
by m1el 8y ago
The words are defined using Signed Distance Field functions -- a function that determines the distance to object's surface. It is quite simple to write down an SDF for primitive objects like cube and sphere, cylinder, torus, then using negation and min/max you can create unions, intersections and differences of shapes defined by SDFs.
Inigo Quilez has in-depth explanations and plenty of examples for these: https://iquilezles.org/www/articles/distfunctions/distfunctions.htm https://iquilezles.org/www/articles/distfunctions/distfuncti...
- userbinator 8y agoIncidentally, he also works at Pixar --- and I'm not sure if he was the one who popularised using SDFs there, because I don't remember seeing this stuff before he first put up those webpages explaining SDFs.
- Impossible 8y agoInigo Quilez works at Facebook (after Oculus story studio was shut down) and is the creator/primary developer of the VR art tool Quill (https://quill.fb.com https://quill.fb.com). He quit Pixar in 2014.