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    Noise/Turbulence
    Function

    Detailed Description

    Functions

    Float SNoise (const Vector &p)
     
    Float SNoise (const Vector &p, Float t)
     
    Float Noise (const Vector &p)
     
    Float Noise (const Vector &p, Float t)
     
    Float PNoise (const Vector &p, const Vector &d)
     
    Float PNoise (const Vector &p, Float t, const Vector &d, Float dt)
     
    Float Turbulence (const Vector &p, Float oct, Bool abs)
     
    Float Turbulence (const Vector &p, Float t, Float oct, Bool abs)
     
    Float WavyTurbulence (const Vector &p, Float t, Float oct, Float start)
     

    Function Documentation

    ◆ SNoise() [1/2]

    Float SNoise ( const Vector &  p)

    Generates a signed noise value.

    Parameters
    [in]pThe noise coordinate.
    Returns
    The signed noise value, between -1.0 and 1.0.

    ◆ SNoise() [2/2]

    Float SNoise ( const Vector &  p,
    Float  t 
    )

    Generates a signed noise value.

    Parameters
    [in]pThe noise coordinate.
    [in]tThe time.
    Returns
    The signed noise value, between -1.0 and 1.0.

    ◆ Noise() [1/2]

    Float Noise ( const Vector &  p)

    Generates a noise value.

    Parameters
    [in]pThe noise coordinate.
    Returns
    The noise value, between 0.0 and 1.0.

    ◆ Noise() [2/2]

    Float Noise ( const Vector &  p,
    Float  t 
    )

    Generates a noise value.

    Parameters
    [in]pThe noise coordinate.
    [in]tThe time.
    Returns
    The noise value, between 0.0 and 1.0.

    ◆ PNoise() [1/2]

    Float PNoise ( const Vector &  p,
    const Vector &  d 
    )

    Generates a periodical noise value.
    PNoise is based on SNoise():

    #define NOISERES 1024
    pnoise = SNoise(Vector(p.x*NOISERES/d.x, p.y*NOISERES/d.y, p.z*NOISERES/d.z));
    Parameters
    [in]pThe noise coordinate.
    [in]dThe period.
    Returns
    The periodical noise value.

    ◆ PNoise() [2/2]

    Float PNoise ( const Vector &  p,
    Float  t,
    const Vector &  d,
    Float  dt 
    )

    Generates a periodical noise value.
    PNoise is based on SNoise():

    #define NOISERES 1024
    pnoise = SNoise(Vector(p.x*NOISERES/d.x, p.y*NOISERES/d.y, p.z*NOISERES/d.z));
    Parameters
    [in]pThe noise coordinate.
    [in]tThe time.
    [in]dThe period.
    [in]dtThe time period.
    Returns
    The periodical noise value.

    ◆ Turbulence() [1/2]

    Float Turbulence ( const Vector &  p,
    Float  oct,
    Bool  abs 
    )

    Generates a turbulence value, this is a sum of multiple noises with different frequency.

    Parameters
    [in]pThe turbulence coordinate.
    [in]octThe number of octaves.
    [in]abstrue for the absolute value.
    Returns
    The turbulence value, between -1.0 and 1.0 unless abs is true, in which case it will be between 0.0 to 1.0.

    ◆ Turbulence() [2/2]

    Float Turbulence ( const Vector &  p,
    Float  t,
    Float  oct,
    Bool  abs 
    )

    Generates a turbulence value, this is a sum of multiple noises with different frequency.

    Parameters
    [in]pThe turbulence coordinate.
    [in]tThe time.
    [in]octThe number of octaves.
    [in]abstrue for the absolute value.
    Returns
    The turbulence value, between -1.0 and 1.0 unless abs is true, in which case it will be between 0.0 to 1.0.

    ◆ WavyTurbulence()

    Float WavyTurbulence ( const Vector &  p,
    Float  t,
    Float  oct,
    Float  start 
    )

    Generates a wavy turbulence value, this is a sum of multiple noises with different frequency.

    Parameters
    [in]pThe turbulence coordinate.
    [in]tThe time.
    [in]octThe number of octaves.
    [in]startThe start value.
    Returns
    The turbulence value, between -1.0 and 1.0.