BlackhartFilms writes:
The first release candidate for 2.79 is out, and with it officially comes the Principled BSDF Shader! However, one quirk you may have noticed is that there isn't an IOR control for your dielectric and metallic reflectivity, only an ambiguous "specular" control. This video explains what that specular slider means, and gives a link to download a nodegroup that does the math for you so that you can use real-world fresnel IOR values to control your specular input.
4 Comments
Nice! Thank you for this!
Don't see the link? Am I blind?
It's the video.
Link to download the nodegroup can be found in the description of the video on YouTube.