CatlikeCoding.Noise.NoiseMath Class Reference

Utility class that contains mathematical operations, constants, and arrays used by noise classes. More...

Static Public Member Functions
static float	Dot (Vector2 g, float x, float y)
	Dot product of two 2D vectors. More...
static float	Dot (Vector3 g, float x, float y, float z)
	Dot product of two 3D vectors. More...
static int	FloorToInt (float value)
	Fast float to floored int conversion. More...
static float	Smooth (float t)
	Smoothing of interpolator. More...

Public Attributes
const int	gradientsMask2D = 15
	Mask for indexing the 2D gradient array. More...
const int	gradientsMask3D = 15
	Mask for indexing the 3D gradient array. More...
const int	hashMask = 255
	Mask for indexing the hash array. More...

Static Public Attributes
static Vector2[]	gradients2D
	2D gradient vector array. More...
static Vector3[]	gradients3D
	3D gradient vector array. More...
static int[]	hash
	Permutation array used to find hash values. More...

Detailed Description

Utility class that contains mathematical operations, constants, and arrays used by noise classes.

Member Function Documentation

static float CatlikeCoding.Noise.NoiseMath.Dot ( Vector2  g, float  x, float  y  )

static

Dot product of two 2D vectors.

Parameters

g	The first vector.
x	The x coordinate of the second vector.
y	The y coordinate of the second vector.

static float CatlikeCoding.Noise.NoiseMath.Dot ( Vector3  g, float  x, float  y, float  z  )

static

Dot product of two 3D vectors.

Parameters

g	The first vector.
x	The x coordinate of the second vector.
y	The y coordinate of the second vector.
z	The z coordinate of the second vector.

static int CatlikeCoding.Noise.NoiseMath.FloorToInt ( float  value )

static

Fast float to floored int conversion.

Parameters

value

Value.

static float CatlikeCoding.Noise.NoiseMath.Smooth ( float  t )

static

Smoothing of interpolator.

Parameters

t	Interpolation value.

Member Data Documentation

Vector2 [] CatlikeCoding.Noise.NoiseMath.gradients2D

static

Initial value:

= {
            new Vector2( 1f, 0f),
            new Vector2(-1f, 0f),
            new Vector2( 0f, 1f),
            new Vector2( 0f,-1f),
            new Vector2(0.707106781f, 0.707106781f),
            new Vector2(-0.707106781f, 0.707106781f),
            new Vector2(0.707106781f, -0.707106781f),
            new Vector2(-0.707106781f, -0.707106781f),
            new Vector2(0.3826835f, 0.9238795f),
            new Vector2(-0.3826835f, 0.9238795f),
            new Vector2(0.3826835f, -0.9238795f),
            new Vector2(-0.3826835f, -0.9238795f),
            new Vector2(0.9238795f, 0.3826835f),
            new Vector2(-0.9238795f, 0.3826835f),
            new Vector2(-0.9238795f, -0.3826835f),
            new Vector2(0.9238795f, -0.3826835f)
        }

2D gradient vector array.

Vector3 [] CatlikeCoding.Noise.NoiseMath.gradients3D

static

Initial value:

= {
            new Vector3( 1f, 1f, 0f),
            new Vector3(-1f, 1f, 0f),
            new Vector3( 1f,-1f, 0f),
            new Vector3(-1f,-1f, 0f),
            new Vector3( 1f, 0f, 1f),
            new Vector3(-1f, 0f, 1f),
            new Vector3( 1f, 0f,-1f),
            new Vector3(-1f, 0f,-1f),
            new Vector3( 0f, 1f, 1f),
            new Vector3( 0f,-1f, 1f),
            new Vector3( 0f, 1f,-1f),
            new Vector3( 0f,-1f,-1f),
            
            new Vector3( 1f, 1f, 0f),
            new Vector3(-1f, 1f, 0f),
            new Vector3( 0f,-1f, 1f),
            new Vector3( 0f,-1f,-1f)
        }

3D gradient vector array.

const int CatlikeCoding.Noise.NoiseMath.gradientsMask2D = 15

Mask for indexing the 2D gradient array.

const int CatlikeCoding.Noise.NoiseMath.gradientsMask3D = 15

Mask for indexing the 3D gradient array.

int [] CatlikeCoding.Noise.NoiseMath.hash

static

Permutation array used to find hash values.

const int CatlikeCoding.Noise.NoiseMath.hashMask = 255

Mask for indexing the hash array.