Perlin Curl Noise
Menu Path : Operator > Noise > Perlin Curl Noise
The Perlin Curl Noise Operator allows you to sample a noise value within a specified range in two or three dimensions based on provided coordinates. Perlin curl noise uses similar math to the Perlin Noise Operator, but with the addition of a curl function which allows it to generate a turbulent noise. This resulting noise is incompressible (divergence-free), which means that particles cannot converge to sink points where they get stuck.
A good use case for Curl Noise is emulating fluid or gas simulation, without having to perform complex calculations.
|Dimensions||Enum||Specify whether the noise is two, or three dimensional.|
|Type||Enum||Specify what type of noise to use.|
|Coordinate||FloatVector2Vector3||The coordinate in the noise field to sample from.
The Type changes to match the number of Dimensions.
|Frequency||Float||The period in which Unity samples the noise. A higher frequency results in more frequent noise change.
|Octaves||Int||The number of layers of noise. More octaves create a more varied look but are also more resource-intensive to calculate.
|Roughness||Float||The scaling factor Unity applies to each octave. Unity only uses roughness when Octaves is set to a value higher than 1.
|Lacunarity||Float||The rate of change of the frequency for each successive octave. A lacunarity value of 1 results in each octave having the same frequency.
|Amplitude||Float||The magnitude of the noise. A higher value increases the range of values the Noise port can return.
|Noise||Float||The noise value at the coordinate you specify.|