Modifying Objects Using a Perlin Noise Function

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Modifying Objects Using a Perlin Noise Function

The ProcGeo, or ProceduralNoise, node lets you modify your 3D objects using a Perlin noise function that creates seemingly random noise. For example, you could use the ProcGeo node to generate animated noise for rippling waves or clouds, or to create a terrain from a flat card, like in the following image:

Using the ProcGeo node to create
a terrain from a card object.

You can select the type of noise and control its look in the ProcGeo node’s parameters.

To Modify Objects Using a Perlin Noise Function

Select 3D > Modify > ProceduralNoise to insert a ProcGeo node anywhere after the 3D object you want to modify.

Attach a Viewer to the node to see your changes.

In the node’s controls, use the display dropdown menu to select how you want to view your object in the Viewer while making changes to it.

From the ProceduralNoise Method dropdown menu, select the type of noise you want to use: Turbulence or fBm (Fractal Brownian Motion).

To select whether to modify the x, y, or z values or all of them, use the Orientation dropdown menu.

To change the look of the noise, adjust the rest of the parameters. For example, to control the amount of detail of the noise, adjust Octaves.