Archive notice: This article was originally published on June 19, 2012. Links and embedded videos are preserved as part of the historical record.
Anyone who wants to create high-quality renderings nowadays cannot avoid a Fresnel effect. In principle, this is a shader dependent on the viewing angle that is excellently suited to metals, glass, or water. It is also often used as a mask specifically for reflections, because the return value lies between 0 and 1 or between black and white depending on the viewing angle.
The Maxon tip for applying physical Fresnel:
Source: Maxon
