Octane Random Walk Medium

Last modified: 17 December 2024

The Random Walk medium node is a variant of subsurface scattering that utilizes a stochastic or random process for the scattering of light through an object. This provides the most realistic result when rendering scatter volumes. Random walk takes in an albedo texture for specifying the expected SSS color, as opposed to the traditional absorption/scattering color spectrum in other medium nodes. You can also specify a color radius texture, which represents how far the light scatters into the medium.

The Random Walk parameters are similar to the Scattering node's parameters with a few exceptions.