Here we see a close up of the block. The important point here is that the colors do not change too much over this block. In fact, we expect this to be true for most of the blocks. There will, of course, be some blocks that contain dramatic changes, such as where the sky and rock intersect, but they will be the exception.

Figure 3.3.5 A close up of the \(8\times8\) block we are considering.