mitsuba::RayleighSpectrum Class Reference

Spectral distribution for rendering participating media with Rayleigh scattering. More...

#include <mitsuba/core/spectrum.h>

Inheritance diagram for mitsuba::RayleighSpectrum:

Public Types
enum	EMode { ESigmaS, ESigmaT }

Public Member Functions
	RayleighSpectrum (EMode mode, Float eta=1.000277f, Float height=0)
	Create a Rayleigh spectrum instance. More...
virtual	~RayleighSpectrum ()
virtual Float	eval (Float lambda) const
	Evaluate the extinction/scattering coefficient for a specified wavelength. More...
std::string	toString () const
	Return a string representation. More...
Public Member Functions inherited from mitsuba::ContinuousSpectrum
virtual Float	average (Float lambdaMin, Float lambdaMax) const
	Integrate the spectral power distribution over a given interval and return the average value. More...
virtual	~ContinuousSpectrum ()
	Virtual destructor. More...

Detailed Description

Spectral distribution for rendering participating media with Rayleigh scattering.

This distribution captures the 1/lambda^4 wavelength dependence of Rayleigh scattering. It can provide both the scattering and extinction coefficient needed for simulating planetary atmospheres with participating media.

Member Enumeration Documentation

enum mitsuba::RayleighSpectrum::EMode

Enumerator
ESigmaS	Compute the scattering coefficient.
ESigmaT	Compute the extinction coefficient.

Constructor & Destructor Documentation

mitsuba::RayleighSpectrum::RayleighSpectrum	(	EMode	mode,
		Float	eta = 1.000277f,
		Float	height = 0
	)

Create a Rayleigh spectrum instance.

Parameters

mode	Specifies the requested type of spectrum
eta	Refractive index of the medium (e.g. air)
height	Height above sea level (in meters)

virtual mitsuba::RayleighSpectrum::~RayleighSpectrum ( )

inlinevirtual

Member Function Documentation

virtual Float mitsuba::RayleighSpectrum::eval ( Float  lambda ) const

virtual

Evaluate the extinction/scattering coefficient for a specified wavelength.

The returned value is in units of 1/meter.

Implements mitsuba::ContinuousSpectrum.

std::string mitsuba::RayleighSpectrum::toString ( ) const

virtual

Return a string representation.

Implements mitsuba::ContinuousSpectrum.

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

• include/mitsuba/core/spectrum.h