Package com.jhlabs.math
Class Noise
java.lang.Object
com.jhlabs.math.Noise
- All Implemented Interfaces:
Function1D
,Function2D
,Function3D
Perlin Noise functions
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionfloat
evaluate
(float x) float
evaluate
(float x, float y) float
evaluate
(float x, float y, float z) static float[]
findRange
(Function1D f, float[] minmax) Returns the minimum and maximum of a number of random values of the given function.static float[]
findRange
(Function2D f, float[] minmax) Returns the minimum and maximum of a number of random values of the given function.static float
lerp
(float t, float a, float b) static float
noise1
(float x) Compute 1-dimensional Perlin noise.static float
noise2
(float x, float y) Compute 2-dimensional Perlin noise.static float
noise3
(float x, float y, float z) Compute 3-dimensional Perlin noise.static float
turbulence2
(float x, float y, float octaves) Compute turbulence using Perlin noise.static float
turbulence3
(float x, float y, float z, float octaves) Compute turbulence using Perlin noise.
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Constructor Details
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Noise
public Noise()
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Method Details
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evaluate
public float evaluate(float x) - Specified by:
evaluate
in interfaceFunction1D
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evaluate
public float evaluate(float x, float y) - Specified by:
evaluate
in interfaceFunction2D
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evaluate
public float evaluate(float x, float y, float z) - Specified by:
evaluate
in interfaceFunction3D
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turbulence2
public static float turbulence2(float x, float y, float octaves) Compute turbulence using Perlin noise.- Parameters:
x
- the x valuey
- the y valueoctaves
- number of octaves of turbulence- Returns:
- turbulence value at (x,y)
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turbulence3
public static float turbulence3(float x, float y, float z, float octaves) Compute turbulence using Perlin noise.- Parameters:
x
- the x valuey
- the y valueoctaves
- number of octaves of turbulence- Returns:
- turbulence value at (x,y)
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noise1
public static float noise1(float x) Compute 1-dimensional Perlin noise.- Parameters:
x
- the x value- Returns:
- noise value at x in the range -1..1
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noise2
public static float noise2(float x, float y) Compute 2-dimensional Perlin noise.- Parameters:
x
- the x coordinatey
- the y coordinate- Returns:
- noise value at (x,y)
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noise3
public static float noise3(float x, float y, float z) Compute 3-dimensional Perlin noise.- Parameters:
x
- the x coordinatey
- the y coordinatey
- the y coordinate- Returns:
- noise value at (x,y,z)
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lerp
public static float lerp(float t, float a, float b) -
findRange
Returns the minimum and maximum of a number of random values of the given function. This is useful for making some stab at normalising the function. -
findRange
Returns the minimum and maximum of a number of random values of the given function. This is useful for making some stab at normalising the function.
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