Table of Contents

This page provides information on the GI tab of V-Ray's Render Settings.



Global Illumination (or GI) is the illumination in a scene that effectively comes from reflected (or bounced) light as opposed to coming directly from a light source. This enables more naturalistic and accurate lighting solutions.

The indirect illumination controls in V-Ray are divided into two large sections: primary diffuse bounces and secondary diffuse bounces.

  • A primary diffuse bounce occurs when a shaded point is directly visible by the camera, or through specular reflective or refractive surfaces.
  • A secondary bounce occurs when a shaded point is used in GI calculations.


UI Path


||Properties Editor|| > Render > GI tab


The GI tab includes the following rollouts: