@perrymotovlog I removed the if node after using the mod, which I thought would save computation. Change the value from 0,1 to -1,1 by multiplying 2 and subtracting 1. This will reverse the direction.
@DrkFX@cmzw_@Thunder_Owl Hello, I downloaded the file, using version 5.3, but when I opened MF_BlenderRefract there was a MaterialFunction that wasn't there. Can you tell me which material function it is? Please.