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@grapefrukt i know a reasonable amount about perlin noise and this surprises me! it also doesn't look like the graphs here: google.com/search?q=perlin+noise+distribution&rlz=1C5CHFA_enUS578US578&sxsrf=ALeKk008Oj7_uz2ZvnuJY0e9OCNUs-zWDQ:1590392707349&source=lnms&tbm=isch&sa=X&ved=2ahUKEwivu__Cws7pAhWBQhUIHR-IDhkQ_AUoAXoECAwQAw&biw=1630&bih=894
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@grapefrukt (it looks a bit like a normal distribution, which is what i'd expect. i wonder if it's some internal rounding/etc that is getting magnified into those U shaped bits?)