Diffuse Shaders PDF Print E-mail
Written by Sergey Shlyaev   
Wednesday, 17 December 2014 20:13

Diffuse shaders for Vray

This page shows two new diffuse models and their comparison to standard Lambert diffuse.

Last Updated on Friday, 02 January 2015 21:13
Shifted Gamma Distribution model for Vray PDF Print E-mail
Written by Sergey Shlyaev   
Friday, 07 February 2014 03:57

Shifted Gamma Distribution model  for Vray

Last Updated on Monday, 16 June 2014 02:28
ABC shader for Vray PDF Print E-mail
Written by Sergey Shlyaev   
Wednesday, 05 February 2014 02:34

ABC Shader for Vray


"ABC" is a brdf model proposed in 2012 by Joakim Löw, Joel Kronander, Anders Ynnerman, Jonas Unger

Original paper is here

Render with ABC shader applied to complex model illuminated by hdr map.

One material, one specular layer, no textures.

Last Updated on Monday, 10 March 2014 03:56
GGX shader for VRay PDF Print E-mail
Written by Sergey Shlyaev   
Sunday, 17 November 2013 03:54

GGX Shader for Vray


Ggx is a microfacet model which is very successful for modeling light reflection from surfaces.

In other words it's a shader like Blinn but 10x more awesome.

Ggx is based on distribution model from Trowbridge and Reitz.

This microfacet model [TR75, WMLT07] has a sharper peak and larger tails than Blinn or Phong.

For more details on ggx math please refer to original paper "Microfacet Models for Refraction through Rough Surfaces" by Bruce Walter et al.

As of Vray 3 GGX is now included into standard distribution. You can find it in "Reflection" section of VrayMtl. No plugin is needed.

Specular highlights comparison


Last Updated on Saturday, 01 July 2017 21:39