C++
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
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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
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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.

Pricing and purchase details


Specular highlights comparison

ggx_vs_the_rest

Last Updated on Friday, 11 April 2014 01:44
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