I notice that in Newteks tutorial section for surfacing, they say the
"The effect that this gradient will have is basically 0% reflection when
looking perfectly level at the object (0 degrees glancing angle), going to
100% reflective at any part of the object that is viewed at an angle of 90
degrees from the same point - in other words, the front bit of the sphere
that I am looking straight at will appear absolutely 0% reflective, while
the very edges of it will be 100% reflective."
However, in my tests, I get the exact opposite. 0 degrees = side surface, 90
degrees = straight on surface.
To further complicate things, I notice that the Fast Fresnel shader uses 0
degrees = straight on surface
, 90 degrees = side surface
What do others get?