9.5.2

910 • CHAPTER 18
THE SHADERS • 911
Earth
This simulates an Earth-like planet texture including mountains. Sea Level determines the color of
areas that have a height less than zero. Land Level is the color for middle-height terrain. Mountain
Level is the color for high terrain. You can increase the Frequency value to break up the land masses.
Level controls the ratio of sea to land. A value of 0% generates mostly sea, 50% results in equal parts
of land and sea, while 100% creates mostly land.