DAZ IRAY Skin Material Optimization

Example Material (Head) 

 

 Optimized Material 

 

 DAZ Dual Lobe 

 The "Dual Lobe" simulates skin oiliness by calculating two layers of specular highlights. The Principled BSDF can approximate this with its standard Roughness and Specular inputs. 

 

 Locate the Texture responsible for Shine. Usually with DAZ, this is <Character from DAZ>_<Bodypart>_S (S = Specular) 

 This, most of the Time flows into a Multiply Add Node 

 

 How to optimize 

 

 Add a Invert Color Node 

 Plug Color Output Socket of Shine/Specular Texture into IUnput of the new Invert Color Node 

 Plug output of Invert Color Node into the Roughness INput of the Principled BSDF 

 (Optional) Tweak IoR Value 

 

 DAZ Color Effect 

 This group is likely handling the "translucency" or Subsurface Scattering (SSS) look of the skin (making ears/nose turn red when backlit). 

 The Principled BSDF from Blender 4.5+ has Built-In Subsurface Scattering (SSS / 3S) 

 

 Locate the Texture responsible for SSS, Usually with DAZ, this is <Character from DAZ>_TH 

 Connect the Color Socket Output of this Node to the Subsurface Weight Input of the Principled BSDF 

 

 DAZ Top Coat 

 The "Top Coat" adds an extra layer of reflection, often used for wet skin, lips, or makeup.