3 ms·

What's a 4D light field?

• PaulHoule 3y ago
  Imagine capturing or controlling all the light rays in a plane (or a rectangle cut out of a plane) which ideally a light field display would do. A light ray intersects the plane at a point (2 dimensions) and is traveling in some direction (another 2 dimensions.). That adds up to 4.
  • denton-scratch 3y ago
    Huh. So it's nothing to do with spacetime. Thanks.
    • dsgdrfgedrg 3y ago
      https://en.wikipedia.org/wiki/Light_field#The_4D_light_field https://en.wikipedia.org/wiki/Light_field#The_4D_light_field