Was hooked up last year for testing purposes, as we already had some code for it, but the closure itself is not really good nor really useful, so let's remove it.
This adds a fresnel conductive OSL preset to the Text Editor. Based on a patch by Lukas Stockner.
Differential revision: https://developer.blender.org/D145
See the differential for details.
* Added Westin Sheen and Westin Backscatter closures for testing, useful for Cloth like effects.
Only available via OSL, added an example OSL shader to the Templates (Text Editor).
* Add a few more OSL templates to the Text Editor, so people can use some of the OSL only shaders and closures.
* Temperature (Kelvin) to RGB converter
* Wavelength to RGB converter
* Ramp closure (Phong and Diffuse)
* Toon closure (Diffuse and Specular)