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Lesson 2 of 13

Footprint

A 3D blob lands on screen as a 2D ellipse. Orbit it and watch the shadow it casts change.

Goals

  • Find an angle where the footprint is round
  • Make the footprint a thin line
  • Cut the reach to 1σ or less and see the hard edge

This lesson draws live blobs in your browser, with JavaScript and WebGL.