- User Since
- Nov 10 2017, 6:23 AM (10 w, 17 h)
Nov 14 2017
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.
Nov 12 2017
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?
Nov 11 2017
OK I will try to reproduce this problem in Blender. Currently I am experiencing it when using the cycles API directly.
Nov 10 2017
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