Smooths terrain by grinding down cliffs. A cell is "erodible" if any neighbour is ≥2 elevation steps below it. Each erosion step lowers the cliff-top by 1 and raises the cliff-base by 1, conserving total landmass.
Smooths terrain by grinding down cliffs. A cell is "erodible" if any neighbour is ≥2 elevation steps below it. Each erosion step lowers the cliff-top by 1 and raises the cliff-base by 1, conserving total landmass.