PerlinSphereSdf Class Reference

Noisy sphere geometry (with Perlin noise). More...

#include <CD_PerlinSphereSdf.H>

Inheritance diagram for PerlinSphereSdf:

Collaboration diagram for PerlinSphereSdf:

Public Member Functions
	PerlinSphereSdf ()
	No weak construction.
	PerlinSphereSdf (const Real &a_rad, const RealVect &a_center, const bool &a_inside, const Real &a_noiseAmp, const RealVect &a_noiseFreq, const Real &a_persistence, const int &a_octaves, const bool &a_reseed=false)
	Constructor.
	PerlinSphereSdf (const PerlinSphereSdf &a_inputIF)
	Copy constructor.
virtual	~PerlinSphereSdf ()
	Destructor (does nothing)
virtual Real	value (const RealVect &a_pos) const
	Value function. Returns distance to object.
virtual BaseIF *	newImplicitFunction () const
	Factory function.

Protected Attributes
Real	m_rad
	Radius.
RealVect	m_center
	Center.
bool	m_inside
	Inside/outside.
RefCountedPtr< BaseIF >	m_perlinIF
	Noise function.

Detailed Description

Noisy sphere geometry (with Perlin noise).

Constructor & Destructor Documentation

PerlinSphereSdf() [1/2]

PerlinSphereSdf::PerlinSphereSdf	(	const Real &	a_rad,
		const RealVect &	a_center,
		const bool &	a_inside,
		const Real &	a_noiseAmp,
		const RealVect &	a_noiseFreq,
		const Real &	a_persistence,
		const int &	a_octaves,
		const bool &	a_reseed = false
	)

Constructor.

Parameters

[in]	a_rad	Sphere radius
[in]	a_center	Sphere center
[in]	a_inside	Inside or outside
[in]	a_noiseAmp	Noise amplitude
[in]	a_noiseFreq	Noise frequency
[in]	a_persistence	Factor for noise octaves.
[in]	a_octaves	Number of octaves
[in]	a_reseed	If true, reseed the RNG. Otherwise, the the original Perlin hash table.

Note

The persistence argument indicates how we add octaves. With 0.5 we use half the amplitude and twice the frequency for the next octave.

PerlinSphereSdf() [2/2]

PerlinSphereSdf::PerlinSphereSdf

(

const PerlinSphereSdf &

a_inputIF

)

Copy constructor.

Parameters

[in]

a_inputIF

Other perlin sphere

Member Function Documentation

newImplicitFunction()

BaseIF * PerlinSphereSdf::newImplicitFunction ( ) const

virtual

Factory function.

Returns

New copy of this implicit function

Reimplemented in GradedPerlinSphereSdf, and PerlinRodSdf.

value()

Real PerlinSphereSdf::value ( const RealVect &  a_pos ) const

virtual

Value function. Returns distance to object.

Parameters

[in]

a_pos

Position

Returns

Function value at the given point

Reimplemented in GradedPerlinSphereSdf, and PerlinRodSdf.

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The documentation for this class was generated from the following files:

• Source/ImplicitFunctions/CD_PerlinSphereSdf.H
• Source/ImplicitFunctions/CD_PerlinSphereSdf.cpp