3D Box Selection using Signed Distance Function
Live Demo & Code: https://editor.p5js.org/rjgilmour/ske...
Credit to Inigio Quilez for his sdBox function which uses the components of a vector to define the dimensions of a box (here in 3D).
sdBox returns the distance from a point p to box defined by by vector b like shown in the video.
The sdBox function assumes that the box is at the origin and axis aligned.
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