The Random Map node will randomize the input texture with the selected Noise Function; Perlin, Unsigned Perlin, Cell and Hash (figure 1). The Scale slider will attenuate the result. 


Tool Random Map

Figure 1: The Random Map node used to modify the output from a Marble Texture node 


Random Map Parameters

Input Texture Pin - The texture to operate upon. This can be an image texture or a procedural texture. 

Input Scale - The scale of the randomization. Higher values cause repeating patterns.

Noise Function - Determines the function used to generate the random values.

  • Perlin - Standard Perlin noise pattern, with a range of -1 to 1.
  • Unsigned Perlin - Perlin noise, with a range of 0 to 1.
  • Cell - Cellular noise, aka "Worley" noise, with a range of 0 to 1.
  • Hash - The classic random noise pattern, with a range of 0 to 1.