ble range is [0, 100].


s_min (float) — the start value of the sigma range where we add noise (enable stochasticity).
A reasonable range is [0, 10].


s_max (float) — the end value of the sigma range where we add noise.
A reasonable range is [0.2, 80].



Stochastic sampling from Karras et al. [1] tailored to the Variance-Expanding (VE) models [2]. Use Algorithm 2 and
the VE column of Table 1 from [1] for reference.
[1] Karras, Tero, et al. “E