Functions - ProkopHapala/FireCore GitHub Wiki
Cosine switch function
$$ f(x) = \frac{1}{1+a(1+cos(x))^n} $$
$$ g(x) = \frac{1}{1+a(1-cos(x))^n} $$
$$ h(x) = f(x)-g(x) $$
$$ f(x) = \frac{1}{1+a(1+cos(x))^n} $$
$$ g(x) = \frac{1}{1+a(1-cos(x))^n} $$
$$ h(x) = f(x)-g(x) $$