Generates the maps of concavity and convexity. All of the bulges and cambers are regarded as convex and the hollows are regarded as concave. Note that output maps do not intersect: one pixel can not be convex and concave at the same time.
Intensity - the amount of influence of the generator on the input map. When the value is set to 0 the generator effect is not visible. In other words, it is the generator’s effective opacity.
Intensity: 1, 5, 10, 20
Spread - since really curving terrain areas are rather rare, the Cavity Generator can expand resulting information on more level areas.