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1. Re: Inverse Fresnel Help

   

   Reply by glynnsmith · Oct 2010 · Home› Unreal Engine

   Stick a One Minus node, from the math group, inbetween your fresnel node and whatever it's going into. One Minus basically inverts :)

2. Re: Inverse Fresnel Help

   

   Reply by JordanW · Oct 2010 · Home› Unreal Engine

   Also divi in your shot the dot result should be clamped, it's actually going to -1 on the backface which causes problems for 2sided and translucent materials. And 0,0,1 is not an up vector without going through a transform node, it's actually returning the surface normal in tangent space.