The Noise node is useful for creating and controlling the appearance of intentional noise. There are 4 noise types:
- Perlin – Similar to the turbulence node with “use turbulence” disabled.
- Turbulence – Similar to the turbulence node with “use turbulence” enabled.
- Circular – Produces a Worley noise.
- Chips – Produces a Voronoi noise.
Figure 1 compares the different noise types applied to spheres.
Figure 1 : Four spheres each with a different noise type connected to the diffuse channel of their materials
Noise Texture Parameters
Adjust the scale of detail in the noise.
Adjusts the sharpness of the noise detail.
Accepts an Octane Transform node which can be used to change the position and scale of the noise
Accepts an Octane projection node which determines how the noise is mapped to the surface. If left blank the object's UV texture coordinates determine the mapping.
Reverses the colors of the noise.
Adjusts the luminance values of the noise.
Adjusts the overall contrast of the noise texture.
Figure 2 shows a Noise texture connected to the Diffuse channel of an Octane material.
Figure : An Octane Noise texture connected to the Diffuse channel of an Octane material