Depth of Field absent from nVidia Postworks?

Hi,

We’re about to put a Depth of Field system into our 3D renderer and I saw that Postworks lists “Depth of Field (Bokeh)” as one of its libraries. (https://developer.nvidia.com/postworks)

Key Features - Depth of Field (Bokeh)
Diffusion DoF Solver (arbitrary blur size, constant cost)
FFT based Bokeh (fixed cost , uses direct compute fft implementation)

However, the Postworks documentation for both versions 3.0 and 2.F doesn’t list Depth of Field anywhere. Does anyone know where to locate the specific method which the Postworks page describes?

Best,

Marc