Here's a little something that I made by jurry-rigging and reworking a clip file that Ulco gave me once as a problem solution. It's a simple setup for stratas, based on masks created by the warped simple shape shaders.
The use is simple - first use a fractal terrain and strata settings of your choice. Then, modify simple shape shaders named DISPLACEMENT AREA and STRATA AREA (they should be placed at the same location). Finally, hit the "random seed" in the "SHAPE" power fractal to get a random, warped simple shape shader, masking the whole setup.
Note that keeping the strata area slightly tighter than the displacement area, you can have some of the peak/summit unaffected by the strata, offering a little bit more diversity!
It's not much, but I'd like to help. I hope you'll find it fun to play with. And thanks to Ulco, for paving a way to this small clip file!
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