Page History

...

Anchor
SettingsGI SettingsGI

Global illumination

...

By default global illumination (GI) is disabled in an empty scene (with the exception of GPU mode where you can't disable GI). You need to set SettingsGI::on to 1 to enable tracing of secondary rays. Any photorealistic render needs GI, so apart from some kind of debuggingof debugging, you will always want to enable GI.

...

The Irradiance map is configured through through SettingsIrradianceMap. 

The main two parameters are:

...

The Light cache is configured through through SettingsLightCache. 

There are a lot of parameters for fine tuning and fixing specific problems but the main parameter is:

...

You can also add scene-wide volumetric effects through the environment_volume list.

A special case is the Sun-Sky system. V-Ray has a special procedural texture, TexSky, for these environment slots that is coupled with SunLight. The color of the environment depends on the position of the Sun.

...

Although the name doesn't hint at it, the CameraPhysical plugin plugin is a settings plugin (singleton). It modifies the way camera rays are shot for effects like DoF (depth of field) and distortion and how they are integrated into the image - exposure. The position and orientation of the camera is still defined by RenderView. Many of the parameters are exactly the same as on a real world DSLR or video/movie camera. 

We will only add a few things here:

...

This is controlled by SettingsColorMapping.  

The default values when you create a SettingsColorMapping plugin are different from the recommended values in 3dsMax and Maya for legacy reasons. These are the values you should use for new scenes:

...