MiikaHweb - Blender Commits By Chery MiikaHweb - Blender Commits By Chery fi Thu, 20 Jan 22 08:54:37 +0000 MiikaHweb RSS contact at <![CDATA[[7811c11] cycles-x: Cycles X: add anisotropic random walk SSS]]> 7811c11
Branches : cycles-x
Author : Christophe Hery (chery)
Committed By : Brecht Van Lommel (brecht)
Cycles X: add anisotropic random walk SSS

This adds new Subsurface Anisotropy and IOR to the Principled BSDF and
Subsurface Scattering nodes. Real world skin has an anisotropy of around
0.8 and this makes it possible to simulate that more accurately.

Based on the paper: "Path Traced Subsurface Scattering using Anisotropic
Phase Functions and Non-Exponential Free Flights"

This comes with a new albedo inversion that gives different results than
the old one. For that reason there is now a Random Walk and Random Walk
(Fixed Radius) option. The latter is provided for backwards compatibility,
and uses the radius exactly as specified. The new one adjust the radius
based on albedo and IOR.

Differential Revision:

22 Paths Changed]]>
Tue, 17 Aug 2021 17:38:35 +0000 Hery