Forum: Poser 12


Subject: Principled BSDF - some examples

caisson opened this issue on Nov 14, 2020 ยท 125 posts


hborre posted Mon, 14 November 2022 at 6:43 PM

Ignore the Glossy node for the Eye Surface, I replaced that with the GlassBsdf node.  The LayerWeight node blend value can be modulated between Fresnel and Facing; you can experiment with either combination.  I use this with the cornea if it is available but I use the Fresnel connector.

For the Sclera, I added the HVS node between the Diffuse map and the PrincipledBsdf node.  Also note, that the same map is plugged into the transmission channel to give it a glassy appearance, use the transmission roughness to modulate the transparency.  On the HVS node, experiment with the value channel, that will brighten/darken the map.  As you can see from the quick render, you preserve the eyelash shadows on the eyes.