This shader is designed to extend Toolbag 3's base diffusion model to allow diffuse roughness. It includes two models:
Disney's diffuse model by Brent Burley
(Oren-Nayar) diffuse BRDF by Shree Nayar and Michael Oren
You can use a custom roughness input for the diffuse, or use the checkbox to use the material's base roughness module (it will automatically invert gloss).
Take it, it's free!
- IMPORTANT INFO -
Marmoset changed their shader api with version 3.04 of Toolbag, please use V1.01 for Toolbag versions 3.04 or newer, and the original for Toolbag versions 3.03 or earlier.
If you'd like to support me, that's great!
My artwork: https://www.artstation.com/artist/almighty_gir
For feature requests and feedback, please visit my Polycount thread: http://polycount.com/discussion/190160/girs-toolbag-3-shaders