Public Member Functions
	LM_COMPONENT_IMPL_DEF ("default")

virtual Sampler *	Clone () const override

virtual void	SetSeed (unsigned int seed) override

virtual Math::Float	Next () override

virtual unsigned int	NextUInt () override

virtual Math::Vec2	NextVec2 () override

virtual Random *	Rng () override

virtual void	Configure (Random *rng, const Math::Float &s1, const Math::Float &s2) override

virtual void	Accept () override

virtual void	Reject () override

virtual void	EnableLargeStepMutation (bool enable) override

virtual bool	LargeStepMutation () const override

virtual void	BeginRestore (RewindableSampler &rewindableSampler) override

virtual void	EndRestore () override

virtual void	GetCurrentSampleState (std::vector< Math::Float > &samples) const override

virtual void	GetCurrentSampleState (std::vector< Math::Float > &samples, int numSamples) override

Public Member Functions inherited from PSSMLTPrimarySampler
	LM_COMPONENT_INTERFACE_DEF ("pssmltprimarysampler")

Public Member Functions inherited from Sampler
LM_PUBLIC_API void	SetSeedWithCurrentTime ()

Public Member Functions inherited from Component
virtual std::string	ComponentInterfaceTypeName () const =0

virtual std::string	ComponentImplTypeName () const =0

Public Member Functions inherited from SIMDAlignedType
void *	operator new (std::size_t size) throw (std::bad_alloc)

void	operator delete (void *p)

Public Attributes
Math::Float	s1

Math::Float	s2
	Kernel size parameters.

Math::Float	logRatio
	Temporary variable (for efficiency)

Random *	rng
	Current random number generator.

std::unique_ptr< Random >	managedRng
	Managed instance of RNG.

long long	time
	Number of accepted mutations.

long long	largeStepTime
	Time of the last accepted large step.

bool	enableLargeStep
	Indicates the next mutation is the large step.

int	currentIndex
	Current sample index.

std::vector< PSSMLTPrimarySample >	u
	List of current samples.

std::vector< std::tuple< int, PSSMLTPrimarySample > >	prevSamples
	Temporary list for preserving previous samples (restored if rejected)

Inheritance diagram for PSSMLTPrimarySamplerImpl:

Member Function Documentation

virtual void PSSMLTPrimarySamplerImpl::Accept ( )

inlineoverridevirtual

Accept mutation. Indicates to accept mutated samples.

Implements PSSMLTPrimarySampler.

virtual void PSSMLTPrimarySamplerImpl::BeginRestore ( RewindableSampler & rewindableSampler )

inlineoverridevirtual

Begin to restore samples. Begins to set internal sample state using the restored sequence of samples with rewindable sampler. Path sampling process dispatched between BeginRestore and EndRestore is recorded in a form of primary samples.

Parameters

rewindableSampler Rewindable sampler.

See also: EndRestore

Implements PSSMLTPrimarySampler.

virtual Sampler* PSSMLTPrimarySamplerImpl::Clone ( ) const

inlineoverridevirtual

Clone the sampler.

Returns: Duplicated sampler.

Implements Sampler.

virtual void PSSMLTPrimarySamplerImpl::Configure	(	Random *	rng,
		const Math::Float &	s1,
		const Math::Float &	s2
	)

inlineoverridevirtual

Configure the sampler. Configure and initializes the sampler. This function must be called before use.

Parameters

rng	Random number generator.
s1	Lower bound of the kernel.
s2	Upper bound of the kernel.

Implements PSSMLTPrimarySampler.

virtual void PSSMLTPrimarySamplerImpl::EnableLargeStepMutation ( bool enable )

inlineoverridevirtual

Enable large step mutation. Enables to use large step mutation in the next mutation step.

Parameters

enable Enabled if true.

Implements PSSMLTPrimarySampler.

virtual void PSSMLTPrimarySamplerImpl::EndRestore ( )

inlineoverridevirtual

End to restore samples. Corresponds to BeginRestore.

See also: BeginRestore

Implements PSSMLTPrimarySampler.

virtual bool PSSMLTPrimarySamplerImpl::LargeStepMutation ( ) const

inlineoverridevirtual

Check if current mutation is large step mutation.

Return values

true	Current mutation is large step mutation.
false	Current mutation is small step mutation.

Implements PSSMLTPrimarySampler.

virtual Math::Float PSSMLTPrimarySamplerImpl::Next ( )

inlineoverridevirtual

Sample a floating-point value.

Returns: Sampled value.

Implements Sampler.

virtual unsigned int PSSMLTPrimarySamplerImpl::NextUInt ( )

inlineoverridevirtual

Sample a unsigned integer value.

Returns: Sampled value.

Implements Sampler.

virtual Math::Vec2 PSSMLTPrimarySamplerImpl::NextVec2 ( )

inlineoverridevirtual

Sample a floating-point 2d vector value.

Returns: Sampled value.

Implements Sampler.

virtual void PSSMLTPrimarySamplerImpl::Reject ( )

inlineoverridevirtual

Reject mutation. Indicates to reject mutated samples. The internal state is restored to previous state.

Implements PSSMLTPrimarySampler.

virtual Random* PSSMLTPrimarySamplerImpl::Rng ( )

inlineoverridevirtual

Ger underlying random number generator if available.

Returns: Random number generator.

Implements Sampler.

virtual void PSSMLTPrimarySamplerImpl::SetSeed ( unsigned int seed )

inlineoverridevirtual

Set seed and initialize internal state. This function is valid only for

Parameters

seed Seed.

Implements Sampler.

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

/home/travis/build/hi2p-perim/lightmetrica/src/liblightmetrica/pssmlt.sampler.cpp

Public Member Functions

Public Attributes

Member Function Documentation