This is probably a niche subject/idea, but I think some very interesting results would be possible if curve nodes could be further edited by various mathematical processes, or if you could directly input a mathematic equation to a curve node. As they appear to (functionally) be a graph, being able to graph any equations (provided the resulting graph doesn’t curve negative in the X-axis) could be very helpful in attempting to create specific shapes in the terrain.

I thought about this while viewing the topic on creating a dunes macro. In Terragen, a lot of people create procedural sand dunes through pure math, and feeding that into the terrain. It would be cool if something similar could be achieved in World Machine.

As an afterthought, here is a link to a research paper on the formation of sand dunes, including the math involved in the shape. For use-case scenarios like this, I think it would be a cool and useful function of World Machine to be able to directly input equations such as those presented in the article into a curve node.