Page Contents

 

Overview


The BRDFLight is a special material provided with the V-Ray renderer. This material is generally used for producing self-illuminated surfaces.

 

 

 

Quick Settings


 

 

Emissive Color – Specifies the color of the light. A texture can be specified as well. For more information, see the Textures example below.

Intensity – Controls the strength of the light.

 

 



Example: Textures


This example shows using the BRDFLight with a texture in the Color slot. In order to control the strength of the light we will need to adjust the Value of the Color Multiplier parameter in the Color Balance roll out of the texture.

 

Color Multiplier: 3.0
GI on ;
Emit on Back Side on
IR: HSphS: 100
IR: Interp.S: 40
Exponential

 

Using a File texture connected to the Color slot. The Color Multiplier is quite low, so only the plane and the reflection on the teapot are visible.

Color Multiplier: 15.0
GI on ;
Emit on Back Side  on
IR: HSphS: 100
IR: Interp.S: 40
Exponential

 

 Increasing the Color Multiplier leads to a much lighter overlook of the scene. Notice that now the texture is getting closer to white color look, due to multiplying the (R,G,B) values of the texture.

Color Multiplier: 3.0
GI on ;
Emit on Back Side on
IR: HSphS: 100
IR: Interp.S: 40
Exponential

 

  Here is another File texture connected to the Color slot. Notice that we haven't changed the VRayMtls for the surrounding walls, but the scene looks different from the previous one due to the new texture.

Color Multiplier: 15.0
GI on ;
Emit on Back Side on
IR: HSphS: 100
IR: Interp.S: 40
Exponential

 

Increasing the Color Multiplier leads to a much lighter overlook of the scene. Notice now that the texture is getting closer to white color look, due to multiplying the (R,G,B) values of the texture.