It's a better approximation than you can make with a normal camera, so its applications are even broader. Instead of a normal camera image which captures the position of focused light rays on a plane, this captures the position and direction of light rays as they move through a volume. Personally I would not call such a versatile instrument useless.
It's a better approximation than you can make with a normal camera, so its applications are even broader. Instead of a normal camera image which captures the position of focused light rays on a plane, this captures the position and direction of light rays as they move through a volume. Personally I would not call such a versatile instrument useless.