BSDFUtils Class Reference

Helper utility function for BSDF computations. More...

#include <bsdfutils.h>

Public Member Functions
	LM_DISABLE_CONSTRUCT (BSDFUtils)

Static Public Member Functions
static auto	ShadingNormalCorrection (const SurfaceGeometry &geom, const Vec3 &wi, const Vec3 &wo, TransportDirection transDir) -> Float
	Compute correction factor for shading normal. More...
static auto	LocalReflect (const Vec3 &wi) -> Vec3
	Compute reflection in the local coordinates. More...
static auto	LocalRefract (const Vec3 &wi, Float eta, Float cosThetaT) -> Vec3
	Compute refraction in the local coordinates. More...

Detailed Description

Helper utility function for BSDF computations.

Member Function Documentation

static auto BSDFUtils::LocalReflect ( const Vec3 &  wi ) -> Vec3

inlinestatic

Compute reflection in the local coordinates.

Parameters

wi	Incident direction in the local coordinates.

Returns

Reflected outgoing direction in the local coordinates.

static auto BSDFUtils::LocalRefract ( const Vec3 &  wi, Float  eta, Float  cosThetaT  ) -> Vec3

inlinestatic

Compute refraction in the local coordinates.

Parameters

wi	Incident direction in the local coordinates.
eta	Index of refraction.
cosThetaT	Inner product between surface normal and the refracted vector.

Returns

Refracted outgoing direction in the local coordinates.

static auto BSDFUtils::ShadingNormalCorrection ( const SurfaceGeometry &  geom, const Vec3 &  wi, const Vec3 &  wo, TransportDirection  transDir  ) -> Float

inlinestatic

Compute correction factor for shading normal.

Parameters

transportDir	Transport direction.
geom	Surface geometry.
localWi	wi in local shading coordinates.
localWo	wo in local shading coordinates.
worldWi	wi in world coordinates.
worldWo	wo in world coordinates.