topography not isotropic #2
Description
If you draw the scene in an image or with contour lines, it appears that there is a predominantly 45 degree (lower left to top right) mountain range preference. I would expect that there should be no preference for any consistent mountain range orientation, I rather expect fully random mountains pointing in all directions. I suspect there is an index alignment error or increment error between x and y.
Your code is very dense and I do not have the time now to find the bug.
