POV-Ray : Documentation : Granite
  POV-Ray 3.6 Documentation Online View Gradient Hexagon Granite

The granite pattern uses a simple 1/f fractal noise function to give a good granite pattern. This pattern is used with creative color maps in stones.inc to create some gorgeous layered stone textures.

As a normal pattern it creates an extremely bumpy surface that looks like a gravel driveway or rough stone.

Note: The appearance of the granite pattern depends on the noise_generator used. The default type is 2. This may be changed using the noise_generator keyword (See section "Pattern Modifiers / Noise_generator").

More about "Noise_generator" Gradient Hexagon

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