This page contains information about the V-Ray Noise Texture in V-Ray for Modo.

 

Page Contents

 

Overview


The V-Ray Noise Texture generates a procedural noise pattern using two colors or texture maps.

 

 


 

UI Path: ||Shading viewport|| > Shader Tree > Add Layer button > V-Ray Textures Procedural > V-Ray Noise


 

Parameters




Color 1 – Controls the first of the two colors used by the V-ray Noise procedural.

Color 2 – Controls the second of the two colors used by the V-ray Noise procedural.

Size – Controls the scale of the noise function.

Phase – Controls the speed of the V-Ray Noise procedural's animation.

Iterations – Number of iterations for the fractal generator. Disabled when using a Regular Noise Type.

Low – Sets the low threshold. Controls the color of large details: low values are lighter, higher values are darker. For more details, please see the Thresholds example below.

High – Sets the high threshold. Controls the color of the smaller details: low values are lighter, higher values are darker. For more details, please see the Thresholds example below.

Type – Allows one of three type of noise to be set by the user to be used by the V-Ray Noise procedural.  The choices are Regular, Fractal, and Turbulence. For more details, please see Noise Types examples below.

Regular – Plain noise, this is not a fractal function.
Fractal – Uses a fractal algorithm to generate the noise, the Interactions channel sets the number of iterations for the Fractal Noise.
Turbulence
– Using an absolute function this generates fractal noise to make fault lines.


 

 


 

Example: Thresholds

Examples in this section use Regular as Noise Type and have Size set to 0.05 with Invert enabled.

 

 
Low: 0.0

 

 
Low: 0.25

 

 
Low: 0.5

 

 
Low: 0.75

 

 

 


High: 0.0

 


High: 0.25

 


High: 0.5

 


High: 0.75

 

 

 

 

Note: High values must remain higher than the Low values in order for contrast to take place. If the two values are equal, or if the High value is set to a number lower than the Low value, very little change from the default will be seen. Numbers very close in value will give very contrasted results.

 

 

 


Low: 0.2
High: 1.0 


Low: 0.2
High: 0.25


Low: 0.2
High: 0.2 

 

 

 


Example: Noise Types
 

 


Regular: Size 0.1



Regular: Size 0.5

 


Regular: Size 1.0

 

 

 


Fractal: Size 0.1

 


Fractal: Size 0.5

 


Fractal: Size 1.0

 

 

 


Turbulence: Size 0.1

 


Turbulence: Size 0.5

 


Turbulence: Size 1.0