perlin.h File Reference

Header file for 2D Perlin noise functions. More...

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Functions
void	initPerlin2D ()
	Initialize gradient and permutation tables.
float	PerlinNoise2D (float, float, float, float, int)
	Generate a cell of 2D Perlin noise.

Function Documentation

float PerlinNoise2D	(	float	x,
		float	y,
		float	alpha,
		float	beta,
		int	n
	)

Compute turbulence, also known as 1/f noise.

Parameters

x	X coordinate.
y	Y coordinate.
alpha	Persistence.
beta	Lacunarity.
n	Side of square grid.

Returns

Scale factor required to bring it down to range [-1, 1].