ndf_sampler< BSDFMODEL, samplesTheta, samplesPhi, NAME > Class Template Reference

#include <ndf_sampler.h>

Inherits BSDFMODEL.

Classes
struct	backscatter
	Helper Class: Backscatter NDF passthrough. More...

Public Member Functions
	BBM_IMPORT_CONFIG (BSDFMODEL)
template<typename... Ts> requires std::constructible_from<BSDFMODEL, Ts...>
	ndf_sampler (Ts &&... ts)
	forward to parent constructor, with empty _sampler (due to reference to *this)
BsdfSample	sample (const Vec3d &out, const Vec2d &xi, BsdfFlag component=bsdf_flag::All, unit_t unit=unit_t::Radiance, Mask mask=true) const
	Sample the diffuse BSDF given a direction and two random variables.
Value	pdf (const Vec3d &in, const Vec3d &out, BsdfFlag component=bsdf_flag::All, unit_t unit=unit_t::Radiance, Mask mask=true) const
	Compute the pdf given an in and out direction.

Public Attributes
	BBM_BSDF_FORWARD

Static Public Attributes
static constexpr string_literal	name = NAME

Private Member Functions
	BBM_BASETYPES (BSDFMODEL)
	BBM_CHECK_RAW_CONCEPT (concepts::ndf, backscatter)

Private Attributes
Class Attributes
std::map< std::pair< bsdf_flag, unit_t >, ndf::sampler< backscatter, samplesTheta, samplesPhi > >	_samplers

Constructor & Destructor Documentation

ndf_sampler()

ndf_sampler ( Ts &&...  ts )

inline

forward to parent constructor, with empty _sampler (due to reference to *this)

Member Function Documentation

BBM_BASETYPES()

BBM_BASETYPES ( BSDFMODEL  )

private

BBM_CHECK_RAW_CONCEPT()

BBM_CHECK_RAW_CONCEPT ( concepts::ndf  , backscatter    )

private

BBM_IMPORT_CONFIG()

BBM_IMPORT_CONFIG

(

BSDFMODEL

)

pdf()

Value pdf ( const Vec3d &  in, const Vec3d &  out, BsdfFlag  component = bsdf_flag::All, unit_t  unit = unit_t::Radiance, Mask  mask = true  ) const

inline

Compute the pdf given an in and out direction.

Parameters

in	= the incoming (sampled) direction
out	= the outgoing (given) direction
component	= which reflectance component was sampled
unit	= unit of computation (ignored)
mask	= masking of lanes

Returns

the PDF that the incoming direction would be sampled given the outgoing direction.

sample()

BsdfSample sample ( const Vec3d &  out, const Vec2d &  xi, BsdfFlag  component = bsdf_flag::All, unit_t  unit = unit_t::Radiance, Mask  mask = true  ) const

inline

Sample the diffuse BSDF given a direction and two random variables.

Parameters

out	= outgoing direction
xi	= two random variables stored in a Vec2d
component	= which reflectance component to sample
unit	= unit of computation (ignored)
mask	= masking of lanes.

Returns

A bsdfSample containing the sampled direction and the corresponding pdf.

Member Data Documentation

_samplers

std::map< std::pair<bsdf_flag, unit_t>, ndf::sampler<backscatter, samplesTheta, samplesPhi> > _samplers

mutableprivate

BBM_BSDF_FORWARD

BBM_BSDF_FORWARD

name

constexpr string_literal name = NAME

staticconstexpr

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

• include/bbm/ndf_sampler.h