In this chapter, we’ll discuss voxelization and develop a people tracking system. We’ll cover the following:
A voxel is the three-dimensional equivalent of a pixel—a box, rather than a point, in space that has a volume. Imagine taking an object and then decomposing into cubes, all of the same size. Or, if you’d prefer, building an object out of LEGOs or in Minecraft, much like a cubist painting. See Figure 6-1 for an example of a voxelized scene.