• Update to version 1.6.6

OpenShadingLanguage 1.6 comes with new features and lots of bug fixes:

• new OSL operators and arrays of undefined length can be passed to the shaders now
• many API enhancements for the render services and shader contexts

Changelog: https://github.com/imageworks/OpenShadingLanguage/blob/RB-1.6/CHANGES

PR: 200819
Submitted by: Shane Ambler <FreeBSD@ShaneWare.Biz>