stream_perlin v0.1.0 StreamPerlin

Generate a potentially infinite stream of floats betyween -1 and 1 which vary smoothly using a 1d Perlin algorithm.

Summary

Functions

Return a stream of random-ish floats between -1 and 1, where the values tend to change smoothly. This is useful when generating data that is supposed to look natural

Functions

generate(frequency)

Return a stream of random-ish floats between -1 and 1, where the values tend to change smoothly. This is useful when generating data that is supposed to look natural.

Usage

StreamPerlin.generate(n)

generates a stream of floats. n is the frequency, a positive integer. It determines the number of values that are interpolated between new random points. The interpolation is eased using a quintic with zero first and second derivatives at 0 and 1, ensuring the curve is continuous and smooth as it moves between random values.

Good values of n depend on how jagged you want your data, and how many samples you typically take. Values between 5 and 20 seem like a good starting point.

If you need more complex data, you can apply Perlin’s octaves technique.