This surface is describable parametrically as:

X(s,t) = s
Y(s,t) = t
Z(s,t) = 5*cos(s*t /170) + 0.2*cos(s /0.1) - 0.2*cos(t /0.1)
domain: s [-50, 50]; t [-50, 50];

rendered as points and solid from the same perspective.