#include <algorithm>
#include <cassert>
#include <cmath>
#include <cstddef>
#include "RixInterfaces.h"
#include "RixShading.h"
#include "prmanapi.h"
#include "RiTypesHelper.h"
#include "RixPredefinedStrings.hpp"
#include <alloca.h>

Namespaces
	RixConstants

Macros
#define	F_PI (3.14159265f)

#define	F_TWOPI (6.283185307f)

#define	F_FOURPI (12.56637061f)

#define	F_INVPI (0.318309886f)

#define	F_INVPISQ (0.1013211836f)

#define	F_INVTWOPI (0.15915494309f)

#define	F_INVFOURPI (0.0795774715f)

#define	F_PIDIV2 (1.57079632679f)

#define	F_PIDIV4 (0.785398163397f)

#define	F_DEGTORAD (0.017453292520f)

#define	F_RADTODEG (57.2957795131f)

#define	F_INVLN2 (1.44269504089f)

#define	F_INVLN4 (0.72134752f)

#define	F_LOG2E (1.44269504088896f)

#define	F_SQRT2 (1.41421356237f)

#define	F_MAXDIST (1.0e10f)

#define	F_SQRTMIN (1.0842021721e-19f)

#define	F_MINDIVISOR (1.0e-6f)

#define	ALMOSTZERO 0.005f

#define	RixAlloca(s) alloca(s)

Functions
PRMAN_INLINE unsigned int	RixFindFirstSetBit (unsigned long long v)

PRMAN_INLINE float	RixDegreesToRadians (float degrees)

PRMAN_INLINE float	RixRadiansToDegrees (float rads)

template<typename T >
PRMAN_INLINE T	RixSignum (T x)

PRMAN_INLINE int	RixIsFinite (float x)

PRMAN_INLINE int	RixIsFinite (RtFloat3 const &v)

PRMAN_INLINE float	RixMin (float x, float y)

PRMAN_INLINE int	RixMin (int x, int y)

PRMAN_INLINE float	RixMax (float x, float y)

PRMAN_INLINE int	RixMax (int x, int y)

PRMAN_INLINE float	RixClamp (float x, float min, float max)

PRMAN_INLINE int	RixClamp (int x, int min, int max)

PRMAN_INLINE float	RixFractional (float x)

PRMAN_INLINE float	RixMod (float x, float y)

PRMAN_INLINE void	RixFresnelDielectric (float VdN, float eta, float *Kr)

PRMAN_INLINE void	RixFresnelDielectric (const RtVector3 &Vn, const RtNormal3 &Nn, float eta, float Kr, RtVector3 Rn=NULL, RtVector3 *Tn=NULL)

PRMAN_INLINE void	RixFresnelDielectric (RixShadingContext &sCtx, float eta, float Kr, float Kt, RtVector3 R, RtVector3 T)

PRMAN_INLINE void	RixFresnelConductorApprox (float VdN, float eta, float kappa, float *Kr)

PRMAN_INLINE void	RixFresnelConductor (float VdN, float eta, float kappa, float *Kr)

PRMAN_INLINE void	RixFresnelConductor (const RtVector3 &Vn, const RtNormal3 &Nn, float eta, float kappa, float Kr, RtVector3 Rn=NULL)

PRMAN_INLINE void	RixFresnelConductor (float VdN, RtColorRGB const &eta, RtColorRGB const &kappa, RtColorRGB *Kr)

PRMAN_INLINE void	RixFresnelConductor (RtVector3 const &Vn, RtNormal3 const &Nn, RtColorRGB const &eta, RtColorRGB const &kappa, RtColorRGB Kr, RtVector3 Rn=NULL)

PRMAN_INLINE float	RixSchlickFresnelWeight (float NdV)

PRMAN_INLINE RtVector3	RixReflect (const RtVector3 &Vn, const RtNormal3 &Nn)

PRMAN_INLINE RtVector3	RixReflect (RtVector3 const &Vn, RtVector3 const &Nn, float VdN)

PRMAN_INLINE int	RixRefract (const RtVector3 &Vn, const RtNormal3 &Nn, float eta, RtVector3 &Tn)

PRMAN_INLINE RtNormal3	RixGetForwardFacingNormal (RtVector3 const &Vn, RtNormal3 const &Nn, float *VdotNf=NULL)

PRMAN_INLINE RtNormal3	RixGetBackwardFacingNormal (RtVector3 const &Vn, RtNormal3 const &Nn, float *VdotNb=NULL)

PRMAN_INLINE void	RixCosDirectionalDistribution (const RtFloat2 &xi, const RtVector3 &n, const RtVector3 &t0, const RtVector3 &t1, RtVector3 &outDir, float &cosTheta)

PRMAN_INLINE void	RixCosDirectionalDistribution (const RtFloat2 &xi, const RtVector3 &n, RtVector3 &outDir, float &cosTheta)

PRMAN_INLINE void	RixUniformDirectionalDistribution (const RtFloat2 &xi, const RtVector3 &n, const RtVector3 &t0, const RtVector3 &t1, RtVector3 &outDir, float &cosTheta)

PRMAN_INLINE void	RixUniformDirectionalDistribution (const RtFloat2 &xi, const RtVector3 &n, RtVector3 &outDir, float &cosTheta)

PRMAN_INLINE void	RixUniformConeDistribution (const RtFloat2 &xi, const float coneAngle, const RtVector3 &n, const RtVector3 &t0, const RtVector3 &t1, RtVector3 &outDir, float &cosTheta)

PRMAN_INLINE void	RixUniformConeDistribution (const RtFloat2 &xi, const float coneAngle, const RtVector3 &n, RtVector3 &outDir, float &cosTheta)

PRMAN_INLINE RtVector3	RixSphericalDistribution (const RtFloat2 &xi)

PRMAN_INLINE int	RixChooseAndRemap (float &xi, int numThresholds, float *thresholds)

PRMAN_INLINE float	RixTraceBias (const RtPoint3 &, const RtNormal3 &N, const RtVector3 &dir, float biasR, float biasT)

PRMAN_INLINE RtPoint3	RixApplyTraceBias (const RtPoint3 &org, const RtNormal3 &N, const RtVector3 &dir, const float biasR, const float biasT)

PRMAN_INLINE void	RixSinCos (float phi, float sinPhi, float cosPhi)

PRMAN_INLINE RtVector3	RixSphericalDirection (float sinTheta, float cosTheta, float sinPhi, float cosPhi)

PRMAN_INLINE RtVector3	RixSphericalDirection (float sinTheta, float cosTheta, float phi)

PRMAN_INLINE RtVector3	RixChangeBasisFrom (RtVector3 const &in, RtVector3 const &X, RtVector3 const &Y, RtVector3 const &Z)

PRMAN_INLINE RtVector3	RixChangeBasis (RtVector3 const &in, RtVector3 const &X, RtVector3 const &Y, RtVector3 const &Z)

PRMAN_INLINE RtVector3	RixChangeBasisTo (RtVector3 const &in, RtVector3 const &X, RtVector3 const &Y, RtVector3 const &Z)

template<typename T >
PRMAN_INLINE T	RixMix (const T &v0, const T &v1, float m)

template<typename T >
PRMAN_INLINE T	RixSmoothMix (const T &x1, const T &x2, float t)

template<typename T >
PRMAN_INLINE T	RixEaseInMix (const T &x1, const T &x2, float t)

template<typename T >
PRMAN_INLINE T	RixEaseOutMix (const T &x1, const T &x2, float t)

PRMAN_INLINE float	RixBoxStep (float min, float val)

PRMAN_INLINE float	RixLinearStep (float min, float max, float val)

PRMAN_INLINE float	RixSmoothStep (float min, float max, float val)

PRMAN_INLINE float	RixGaussStep (float min, float max, float val)

PRMAN_INLINE float	RixSolidAngle2Spread (float solidangle)

PRMAN_INLINE void	RixComputeShadingBasis (RtNormal3 const &Nf, RtVector3 const &Tn, RtVector3 &TX, RtVector3 &TY)

PRMAN_INLINE void	RixDebugBasis (RixShadingContext *sc, RtPoint3 &o, RtVector3 &x, RtVector3 &y, RtVector3 &z)

PRMAN_INLINE void	RixShiftCtxInU (RixShadingContext *sCtx)

PRMAN_INLINE void	RixShiftCtxInV (RixShadingContext *sCtx)

PRMAN_INLINE void	RixBump (RixShadingContext const sCtx, float const disp, float const dispU, float const dispV, RtNormal3 *Nn)

PRMAN_INLINE int	RixIsMatte (RixShadingContext const &sCtx)

PRMAN_INLINE int	RixIsHoldout (RixShadingContext const &sCtx)

PRMAN_INLINE unsigned long	RixImod (const unsigned long a, const unsigned long b)

PRMAN_INLINE float	RixHash (const char *bufPtr, unsigned long range=65535)

PRMAN_INLINE RtColorRGB	RixLerpRGB (RtColorRGB const &a, RtColorRGB const &b, float const mix)

PRMAN_INLINE void	RixAdjustNormal (float const amount, RtVector3 const &Vn, RtVector3 const &Ngn, RtNormal3 &Nn)

PRMAN_INLINE RtFloat	RixBumpShadowingFactor (RtNormal3 shadingNormal, RtNormal3 bumpNormal, RtVector3 Ln)

PRMAN_INLINE RtFloat	RixProcPrimInstanceHash (RixRenderState *rstate)

PRMAN_INLINE float	RixRayCurvatureToRoughnessSq (float multiplier, float curvature, float incidentRayRadius, float incidentRaySpread)

PRMAN_INLINE float	RixMollifyRoughness (float roughness, float rayCurvatureRoughnessSq)

Macro Definition Documentation

◆ ALMOSTZERO

#define ALMOSTZERO 0.005f

Referenced by RixCosDirectionalDistribution().

◆ F_DEGTORAD

#define F_DEGTORAD (0.017453292520f)

Referenced by RixDegreesToRadians().

◆ F_FOURPI

#define F_FOURPI (12.56637061f)

◆ F_INVFOURPI

#define F_INVFOURPI (0.0795774715f)

◆ F_INVLN2

#define F_INVLN2 (1.44269504089f)

◆ F_INVLN4

#define F_INVLN4 (0.72134752f)

◆ F_INVPI

#define F_INVPI (0.318309886f)

◆ F_INVPISQ

#define F_INVPISQ (0.1013211836f)

◆ F_INVTWOPI

#define F_INVTWOPI (0.15915494309f)

◆ F_LOG2E

#define F_LOG2E (1.44269504088896f)

◆ F_MAXDIST

#define F_MAXDIST (1.0e10f)

◆ F_MINDIVISOR

#define F_MINDIVISOR (1.0e-6f)

◆ F_PI

#define F_PI (3.14159265f)

Referenced by RixIES::EvaluateIESProfile(), and RixIES::ReadIESProfile().

◆ F_PIDIV2

#define F_PIDIV2 (1.57079632679f)

◆ F_PIDIV4

#define F_PIDIV4 (0.785398163397f)

◆ F_RADTODEG

#define F_RADTODEG (57.2957795131f)

Referenced by RixRadiansToDegrees().

◆ F_SQRT2

#define F_SQRT2 (1.41421356237f)

◆ F_SQRTMIN

#define F_SQRTMIN (1.0842021721e-19f)

◆ F_TWOPI

#define F_TWOPI (6.283185307f)

Referenced by RixCosDirectionalDistribution(), RixSphericalDistribution(), RixUniformConeDistribution(), and RixUniformDirectionalDistribution().

◆ RixAlloca

#define RixAlloca ( s ) alloca(s)

Function Documentation

◆ RixAdjustNormal()

PRMAN_INLINE void RixAdjustNormal	(	float const	amount,
		RtVector3 const &	Vn,
		RtVector3 const &	Ngn,
		RtNormal3 &	Nn
	)

◆ RixApplyTraceBias()

PRMAN_INLINE RtPoint3 RixApplyTraceBias	(	const RtPoint3 &	org,
		const RtNormal3 &	N,
		const RtVector3 &	dir,
		const float	biasR,
		const float	biasT
	)

References RixTraceBias().

◆ RixBoxStep()

PRMAN_INLINE float RixBoxStep	(	float	min,
		float	val
	)

Referenced by RixGaussStep(), RixLinearStep(), and RixSmoothStep().

◆ RixBump()

PRMAN_INLINE void RixBump	(	RixShadingContext const *	sCtx,
		float const *	disp,
		float const *	dispU,
		float const *	dispV,
		RtNormal3 *	Nn
	)

References RixShadingContext::GetBuiltinVar(), RixShadingContext::GetPrimVar(), RixShadingContext::k_dPdu, RixShadingContext::k_dPdv, RixShadingContext::k_du, RixShadingContext::k_dv, RixShadingContext::k_Naon, RixShadingContext::k_Ngn, RixShadingContext::k_Nn, k_RixSCInvalidDetail, and RixShadingContext::numPts.

◆ RixBumpShadowingFactor()

PRMAN_INLINE RtFloat RixBumpShadowingFactor	(	RtNormal3	shadingNormal,
		RtNormal3	bumpNormal,
		RtVector3	Ln
	)

References RixClamp(), RixMax(), and RixMin().

◆ RixChangeBasis()

PRMAN_INLINE RtVector3 RixChangeBasis	(	RtVector3 const &	in,
		RtVector3 const &	X,
		RtVector3 const &	Y,
		RtVector3 const &	Z
	)

References RixChangeBasisFrom().

◆ RixChangeBasisFrom()

PRMAN_INLINE RtVector3 RixChangeBasisFrom	(	RtVector3 const &	in,
		RtVector3 const &	X,
		RtVector3 const &	Y,
		RtVector3 const &	Z
	)

Referenced by RixChangeBasis().

◆ RixChangeBasisTo()

PRMAN_INLINE RtVector3 RixChangeBasisTo	(	RtVector3 const &	in,
		RtVector3 const &	X,
		RtVector3 const &	Y,
		RtVector3 const &	Z
	)

◆ RixChooseAndRemap()

PRMAN_INLINE int RixChooseAndRemap	(	float &	xi,
		int	numThresholds,
		float *	thresholds
	)

◆ RixClamp() [1/2]

PRMAN_INLINE float RixClamp	(	float	x,
		float	min,
		float	max
	)

Referenced by RixBumpShadowingFactor(), RixColorClamp(), RixContrast(), RixHslCorrect(), RixHsvCorrect(), and RixLerpRGB().

◆ RixClamp() [2/2]

PRMAN_INLINE int RixClamp	(	int	x,
		int	min,
		int	max
	)

◆ RixComputeShadingBasis()

PRMAN_INLINE void RixComputeShadingBasis	(	RtNormal3 const &	Nf,
		RtVector3 const &	Tn,
		RtVector3 &	TX,
		RtVector3 &	TY
	)

◆ RixCosDirectionalDistribution() [1/2]

PRMAN_INLINE void RixCosDirectionalDistribution	(	const RtFloat2 &	xi,
		const RtVector3 &	n,
		const RtVector3 &	t0,
		const RtVector3 &	t1,
		RtVector3 &	outDir,
		float &	cosTheta
	)

References ALMOSTZERO, F_TWOPI, RtFloat2::x, and RtFloat2::y.

Referenced by RixCosDirectionalDistribution().

◆ RixCosDirectionalDistribution() [2/2]

PRMAN_INLINE void RixCosDirectionalDistribution	(	const RtFloat2 &	xi,
		const RtVector3 &	n,
		RtVector3 &	outDir,
		float &	cosTheta
	)

References RixCosDirectionalDistribution().

◆ RixDebugBasis()

PRMAN_INLINE void RixDebugBasis	(	RixShadingContext *	sc,
		RtPoint3 &	o,
		RtVector3 &	x,
		RtVector3 &	y,
		RtVector3 &	z
	)

References RixGeoDebugger::EmitPointNormal(), RixContext::GetRixInterface(), k_RixGeoDebugger, and PIXAR_ARGUSED.

◆ RixDegreesToRadians()

PRMAN_INLINE float RixDegreesToRadians ( float degrees )

References F_DEGTORAD.

◆ RixEaseInMix()

template<typename T >

PRMAN_INLINE T RixEaseInMix	(	const T &	x1,
		const T &	x2,
		float	t
	)

◆ RixEaseOutMix()

template<typename T >

PRMAN_INLINE T RixEaseOutMix	(	const T &	x1,
		const T &	x2,
		float	t
	)

◆ RixFindFirstSetBit()

PRMAN_INLINE unsigned int RixFindFirstSetBit ( unsigned long long v )

Referenced by RixBXLobeWeights::GetActiveLobes(), RixBXLobeWeights::GetActiveLobesIntersection(), and RixLPEScatterEvent::RixLPEScatterEvent().

◆ RixFractional()

PRMAN_INLINE float RixFractional ( float x )

Referenced by RixHslCorrect(), and RixHsvCorrect().

◆ RixFresnelConductor() [1/4]

PRMAN_INLINE void RixFresnelConductor	(	float	VdN,
		float	eta,
		float	kappa,
		float *	Kr
	)

References RixFresnelDielectric().

Referenced by RixFresnelConductor().

◆ RixFresnelConductor() [2/4]

PRMAN_INLINE void RixFresnelConductor	(	const RtVector3 &	Vn,
		const RtNormal3 &	Nn,
		float	eta,
		float	kappa,
		float *	Kr,
		RtVector3 *	Rn = `NULL`
	)

References RixFresnelConductorApprox().

◆ RixFresnelConductor() [3/4]

PRMAN_INLINE void RixFresnelConductor	(	float	VdN,
		RtColorRGB const &	eta,
		RtColorRGB const &	kappa,
		RtColorRGB *	Kr
	)

References RixFresnelConductorApprox().

◆ RixFresnelConductor() [4/4]

PRMAN_INLINE void RixFresnelConductor	(	RtVector3 const &	Vn,
		RtNormal3 const &	Nn,
		RtColorRGB const &	eta,
		RtColorRGB const &	kappa,
		RtColorRGB *	Kr,
		RtVector3 *	Rn = `NULL`
	)

References RixFresnelConductor().

◆ RixFresnelConductorApprox()

PRMAN_INLINE void RixFresnelConductorApprox	(	float	VdN,
		float	eta,
		float	kappa,
		float *	Kr
	)

References RixFresnelDielectric().

Referenced by RixFresnelConductor().

◆ RixFresnelDielectric() [1/3]

PRMAN_INLINE void RixFresnelDielectric	(	float	VdN,
		float	eta,
		float *	Kr
	)

Referenced by RixFresnelConductor(), RixFresnelConductorApprox(), and RixFresnelDielectric().

◆ RixFresnelDielectric() [2/3]

PRMAN_INLINE void RixFresnelDielectric	(	const RtVector3 &	Vn,
		const RtNormal3 &	Nn,
		float	eta,
		float *	Kr,
		RtVector3 *	Rn = `NULL`,
		RtVector3 *	Tn = `NULL`
	)

◆ RixFresnelDielectric() [3/3]

PRMAN_INLINE void RixFresnelDielectric	(	RixShadingContext &	sCtx,
		float	eta,
		float *	Kr,
		float *	Kt,
		RtVector3 *	R,
		RtVector3 *	T
	)

References RixShadingContext::GetBuiltinVar(), RixShadingContext::k_Nn, RixShadingContext::k_Vn, RixShadingContext::numPts, and RixFresnelDielectric().

◆ RixGaussStep()

PRMAN_INLINE float RixGaussStep	(	float	min,
		float	max,
		float	val
	)

References RixBoxStep().

◆ RixGetBackwardFacingNormal()

PRMAN_INLINE RtNormal3 RixGetBackwardFacingNormal	(	RtVector3 const &	Vn,
		RtNormal3 const &	Nn,
		float *	VdotNb = `NULL`
	)

◆ RixGetForwardFacingNormal()

PRMAN_INLINE RtNormal3 RixGetForwardFacingNormal	(	RtVector3 const &	Vn,
		RtNormal3 const &	Nn,
		float *	VdotNf = `NULL`
	)

◆ RixHash()

PRMAN_INLINE float RixHash	(	const char *	bufPtr,
		unsigned long	range = `65535`
	)

References RixImod().

◆ RixImod()

PRMAN_INLINE unsigned long RixImod	(	const unsigned long	a,
		const unsigned long	b
	)

Referenced by RixHash().

◆ RixIsFinite() [1/2]

PRMAN_INLINE int RixIsFinite ( float x )

Referenced by RixIsFinite(), and RtRayGeometry::SetRaySpread().

◆ RixIsFinite() [2/2]

PRMAN_INLINE int RixIsFinite ( RtFloat3 const & v )

References RixIsFinite().

◆ RixIsHoldout()

PRMAN_INLINE int RixIsHoldout ( RixShadingContext const & sCtx )

References RixContext::GetRixInterface(), and k_RixRenderState.

◆ RixIsMatte()

PRMAN_INLINE int RixIsMatte ( RixShadingContext const & sCtx )

References RixContext::GetRixInterface(), and k_RixRenderState.

Referenced by PxrGeoAOV::Splat().

◆ RixLerpRGB()

PRMAN_INLINE RtColorRGB RixLerpRGB	(	RtColorRGB const &	a,
		RtColorRGB const &	b,
		float const	mix
	)

References RixClamp().

◆ RixLinearStep()

PRMAN_INLINE float RixLinearStep	(	float	min,
		float	max,
		float	val
	)

References RixBoxStep().

◆ RixMax() [1/2]

PRMAN_INLINE float RixMax	(	float	x,
		float	y
	)

Referenced by RixBumpShadowingFactor(), RixGamma(), and RixSaturation().

◆ RixMax() [2/2]

PRMAN_INLINE int RixMax	(	int	x,
		int	y
	)

◆ RixMin() [1/2]

PRMAN_INLINE float RixMin	(	float	x,
		float	y
	)

Referenced by RixBumpShadowingFactor(), and RixContrast().

◆ RixMin() [2/2]

PRMAN_INLINE int RixMin	(	int	x,
		int	y
	)

◆ RixMix()

template<typename T >

PRMAN_INLINE T RixMix	(	const T &	v0,
		const T &	v1,
		float	m
	)

◆ RixMod()

PRMAN_INLINE float RixMod	(	float	x,
		float	y
	)

◆ RixMollifyRoughness()

PRMAN_INLINE float RixMollifyRoughness	(	float	roughness,
		float	rayCurvatureRoughnessSq
	)

◆ RixProcPrimInstanceHash()

PRMAN_INLINE RtFloat RixProcPrimInstanceHash ( RixRenderState * rstate )

References RixRenderState::GetAttribute().

◆ RixRadiansToDegrees()

PRMAN_INLINE float RixRadiansToDegrees ( float rads )

References F_RADTODEG.

◆ RixRayCurvatureToRoughnessSq()

PRMAN_INLINE float RixRayCurvatureToRoughnessSq	(	float	multiplier,
		float	curvature,
		float	incidentRayRadius,
		float	incidentRaySpread
	)

◆ RixReflect() [1/2]

PRMAN_INLINE RtVector3 RixReflect	(	const RtVector3 &	Vn,
		const RtNormal3 &	Nn
	)

◆ RixReflect() [2/2]

PRMAN_INLINE RtVector3 RixReflect	(	RtVector3 const &	Vn,
		RtVector3 const &	Nn,
		float	VdN
	)

◆ RixRefract()

PRMAN_INLINE int RixRefract	(	const RtVector3 &	Vn,
		const RtNormal3 &	Nn,
		float	eta,
		RtVector3 &	Tn
	)

◆ RixSchlickFresnelWeight()

PRMAN_INLINE float RixSchlickFresnelWeight ( float NdV )

◆ RixShiftCtxInU()

PRMAN_INLINE void RixShiftCtxInU ( RixShadingContext * sCtx )

References RixShadingContext::Allocator::AllocForPattern(), RixShadingContext::GetBuiltinVar(), RixShadingContext::k_du, RixShadingContext::k_u, RixShadingContext::numPts, and RixShadingContext::SetBuiltinVar().

◆ RixShiftCtxInV()

PRMAN_INLINE void RixShiftCtxInV ( RixShadingContext * sCtx )

References RixShadingContext::Allocator::AllocForPattern(), RixShadingContext::GetBuiltinVar(), RixShadingContext::k_dv, RixShadingContext::k_v, RixShadingContext::numPts, and RixShadingContext::SetBuiltinVar().

◆ RixSignum()

template<typename T >

PRMAN_INLINE T RixSignum ( T x )

◆ RixSinCos()

PRMAN_INLINE void RixSinCos	(	float	phi,
		float *	sinPhi,
		float *	cosPhi
	)

Referenced by RixSphericalDirection().

◆ RixSmoothMix()

template<typename T >

PRMAN_INLINE T RixSmoothMix	(	const T &	x1,
		const T &	x2,
		float	t
	)

◆ RixSmoothStep()

PRMAN_INLINE float RixSmoothStep	(	float	min,
		float	max,
		float	val
	)

References RixBoxStep().

◆ RixSolidAngle2Spread()

PRMAN_INLINE float RixSolidAngle2Spread ( float solidangle )

◆ RixSphericalDirection() [1/2]

PRMAN_INLINE RtVector3 RixSphericalDirection	(	float	sinTheta,
		float	cosTheta,
		float	sinPhi,
		float	cosPhi
	)

Referenced by RixSphericalDirection().

◆ RixSphericalDirection() [2/2]

PRMAN_INLINE RtVector3 RixSphericalDirection	(	float	sinTheta,
		float	cosTheta,
		float	phi
	)

References RixSinCos(), and RixSphericalDirection().

◆ RixSphericalDistribution()

PRMAN_INLINE RtVector3 RixSphericalDistribution ( const RtFloat2 & xi )

References F_TWOPI, RtFloat2::x, and RtFloat2::y.

◆ RixTraceBias()

PRMAN_INLINE float RixTraceBias	(	const RtPoint3 &	,
		const RtNormal3 &	N,
		const RtVector3 &	dir,
		float	biasR,
		float	biasT
	)

Referenced by RixApplyTraceBias().

◆ RixUniformConeDistribution() [1/2]

PRMAN_INLINE void RixUniformConeDistribution	(	const RtFloat2 &	xi,
		const float	coneAngle,
		const RtVector3 &	n,
		const RtVector3 &	t0,
		const RtVector3 &	t1,
		RtVector3 &	outDir,
		float &	cosTheta
	)

References F_TWOPI, RtFloat2::x, and RtFloat2::y.

Referenced by RixUniformConeDistribution().

◆ RixUniformConeDistribution() [2/2]

PRMAN_INLINE void RixUniformConeDistribution	(	const RtFloat2 &	xi,
		const float	coneAngle,
		const RtVector3 &	n,
		RtVector3 &	outDir,
		float &	cosTheta
	)

References RixUniformConeDistribution().

◆ RixUniformDirectionalDistribution() [1/2]

PRMAN_INLINE void RixUniformDirectionalDistribution	(	const RtFloat2 &	xi,
		const RtVector3 &	n,
		const RtVector3 &	t0,
		const RtVector3 &	t1,
		RtVector3 &	outDir,
		float &	cosTheta
	)

References F_TWOPI, RtFloat2::x, and RtFloat2::y.

Referenced by RixUniformDirectionalDistribution().

◆ RixUniformDirectionalDistribution() [2/2]

PRMAN_INLINE void RixUniformDirectionalDistribution	(	const RtFloat2 &	xi,
		const RtVector3 &	n,
		RtVector3 &	outDir,
		float &	cosTheta
	)

References RixUniformDirectionalDistribution().

Namespaces

Macros

Functions

Macro Definition Documentation

◆ ALMOSTZERO

◆ F_DEGTORAD

◆ F_FOURPI

◆ F_INVFOURPI

◆ F_INVLN2

◆ F_INVLN4

◆ F_INVPI

◆ F_INVPISQ

◆ F_INVTWOPI

◆ F_LOG2E

◆ F_MAXDIST

◆ F_MINDIVISOR

◆ F_PI

◆ F_PIDIV2

◆ F_PIDIV4

◆ F_RADTODEG

◆ F_SQRT2

◆ F_SQRTMIN

◆ F_TWOPI

◆ RixAlloca

Function Documentation

◆ RixAdjustNormal()

◆ RixApplyTraceBias()

◆ RixBoxStep()

◆ RixBump()

◆ RixBumpShadowingFactor()

◆ RixChangeBasis()

◆ RixChangeBasisFrom()

◆ RixChangeBasisTo()

◆ RixChooseAndRemap()

◆ RixClamp() [1/2]

◆ RixClamp() [2/2]

◆ RixComputeShadingBasis()

◆ RixCosDirectionalDistribution() [1/2]

◆ RixCosDirectionalDistribution() [2/2]

◆ RixDebugBasis()

◆ RixDegreesToRadians()

◆ RixEaseInMix()

◆ RixEaseOutMix()

◆ RixFindFirstSetBit()

◆ RixFractional()

◆ RixFresnelConductor() [1/4]

◆ RixFresnelConductor() [2/4]

◆ RixFresnelConductor() [3/4]

◆ RixFresnelConductor() [4/4]

◆ RixFresnelConductorApprox()

◆ RixFresnelDielectric() [1/3]

◆ RixFresnelDielectric() [2/3]

◆ RixFresnelDielectric() [3/3]

◆ RixGaussStep()

◆ RixGetBackwardFacingNormal()

◆ RixGetForwardFacingNormal()

◆ RixHash()

◆ RixImod()

◆ RixIsFinite() [1/2]

◆ RixIsFinite() [2/2]

◆ RixIsHoldout()

◆ RixIsMatte()

◆ RixLerpRGB()

◆ RixLinearStep()

◆ RixMax() [1/2]

◆ RixMax() [2/2]

◆ RixMin() [1/2]

◆ RixMin() [2/2]

◆ RixMix()

◆ RixMod()

◆ RixMollifyRoughness()

◆ RixProcPrimInstanceHash()

◆ RixRadiansToDegrees()

◆ RixRayCurvatureToRoughnessSq()

◆ RixReflect() [1/2]

◆ RixReflect() [2/2]

◆ RixRefract()

◆ RixSchlickFresnelWeight()

◆ RixShiftCtxInU()

◆ RixShiftCtxInV()