We present a method for efficiently generating Poisson sphere distributions, the
three-dimensional equivalent of Poisson disk distributions. Our method is able
to generate arbitrarily large Poisson sphere distributions in real time, and
allows local evaluation of the generated distributions. The method we present is
based on cubes with colored corners, called corner cubes, an extension of corner
tiles. We generalize tiling algorithms and construction methods from corner
tiles to corner cubes. Poisson sphere distributions have several useful
applications in computer graphics, such as geometry instancing and a
three-dimensional procedural object distribution function.