The isolines are a unique tool for creating landscapes. It allows you to shape the terrain to your liking instead of having to rely on the highly unpredictable random generation of basic terrain.

The point is not to define exact terrains, which would be a time consuming process, but with little work to create the basic layout of it like mountains or valleys, the course of deep erosions, streams or creeks, dunes or other landscaping elements. Filters and erosions then give it the realistic details.

The isolines tool can be controlled very precisely and thus offers a wide variety of ways to make use of. They can be modified in many ways, such as size, intensity, and style (absolute, raise, lower). Additionally, isolines work in chronologic order, so the ones placed in the highest layer will be rendered on top of the previous ones.

Isolines can also be used as ramps by assigning different heights to the start and end points of the line.

Isolines are seperated from the terrain filters and erosions, so you can add them to any existing terrain to change its shape, but keep its look.

For example, an artist can define the filters to achieve a specific type of world, and the level designer can then shape it into the planned level, a huge gain for the workflow.