- User Since
- Fri, Nov 10, 6:23 AM (1 w, 3 d)
Tue, Nov 14
Hi Brecht, thanks so much for the suggestion, the problem seems to be that my normals in particular cases were flipped. I can reproduce it in blender by manually flipping the normals. Please close this for now and I will re-open if I have further problems.
Sun, Nov 12
I have been unable to reproduce this in the current version of blender yet. Was there any updates to the principled shader between 1.79 and 1.79.1?
Sat, Nov 11
OK I will try to reproduce this problem in Blender. Currently I am experiencing it when using the cycles API directly.
Fri, Nov 10
Original V-Ray scene
Example showing the Fresnel node with expected smooth Fresnel response
Example on water surface using Principled BSDF as a volumetric shader. IOR is set to 1.33 and Specular to 0.5