bsdf_microfacet_multi.h File Reference

#include "kernel/closure/bsdf_microfacet_multi_impl.h"

Go to the source code of this file.

Macros
#define	MF_NAME_JOIN(x, y)   x##_##y
#define	MF_NAME_EVAL(x, y)   MF_NAME_JOIN(x, y)
#define	MF_FUNCTION_FULL_NAME(prefix)   MF_NAME_EVAL(prefix, MF_PHASE_FUNCTION)
#define	MF_PHASE_FUNCTION   glass
#define	MF_MULTI_GLASS
#define	MF_PHASE_FUNCTION   glossy
#define	MF_MULTI_GLOSSY

Functions
CCL_NAMESPACE_BEGIN ccl_device_forceinline float	D_ggx (float3 wm, float alpha)
ccl_device_forceinline float	D_ggx_aniso (const float3 wm, const float2 alpha)
ccl_device_forceinline float2	mf_sampleP22_11 (const float cosI, const float randx, const float randy)
ccl_device_forceinline float3	mf_sample_vndf (const float3 wi, const float2 alpha, const float randx, const float randy)
ccl_device_forceinline float3	mf_sample_phase_glossy (const float3 wi, float3 *weight, const float3 wm)
ccl_device_forceinline float3	mf_eval_phase_glossy (const float3 w, const float lambda, const float3 wo, const float2 alpha)
ccl_device_forceinline float3	mf_sample_phase_glass (const float3 wi, const float eta, const float3 wm, const float randV, bool *outside)
ccl_device_forceinline float3	mf_eval_phase_glass (const float3 w, const float lambda, const float3 wo, const bool wo_outside, const float2 alpha, const float eta)
ccl_device_forceinline float	mf_lambda (const float3 w, const float2 alpha)
ccl_device_forceinline float	mf_invC1 (const float h)
ccl_device_forceinline float	mf_C1 (const float h)
ccl_device_forceinline float	mf_G1 (const float3 w, const float C1, const float lambda)
ccl_device_forceinline bool	mf_sample_height (const float3 w, float *h, float *C1, float *G1, float *lambda, const float U)
ccl_device_forceinline float	mf_ggx_albedo (float r)
ccl_device_inline float	mf_ggx_transmission_albedo (float a, float ior)
ccl_device_forceinline float	mf_ggx_pdf (const float3 wi, const float3 wo, const float alpha)
ccl_device_forceinline float	mf_ggx_aniso_pdf (const float3 wi, const float3 wo, const float2 alpha)
ccl_device_forceinline float	mf_glass_pdf (const float3 wi, const float3 wo, const float alpha, const float eta)
ccl_device void	bsdf_microfacet_multi_ggx_blur (ShaderClosure *sc, float roughness)
ccl_device int	bsdf_microfacet_multi_ggx_common_setup (MicrofacetBsdf *bsdf)
ccl_device int	bsdf_microfacet_multi_ggx_setup (MicrofacetBsdf *bsdf)
ccl_device int	bsdf_microfacet_multi_ggx_fresnel_setup (MicrofacetBsdf *bsdf, const ShaderData *sd)
ccl_device int	bsdf_microfacet_multi_ggx_refraction_setup (MicrofacetBsdf *bsdf)
ccl_device float3	bsdf_microfacet_multi_ggx_eval_transmit (const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf, ccl_addr_space uint *lcg_state)
ccl_device float3	bsdf_microfacet_multi_ggx_eval_reflect (const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf, ccl_addr_space uint *lcg_state)
ccl_device int	bsdf_microfacet_multi_ggx_sample (KernelGlobals *kg, const ShaderClosure *sc, float3 Ng, float3 I, float3 dIdx, float3 dIdy, float randu, float randv, float3 *eval, float3 *omega_in, float3 *domega_in_dx, float3 *domega_in_dy, float *pdf, ccl_addr_space uint *lcg_state)
ccl_device int	bsdf_microfacet_multi_ggx_glass_setup (MicrofacetBsdf *bsdf)
ccl_device int	bsdf_microfacet_multi_ggx_glass_fresnel_setup (MicrofacetBsdf *bsdf, const ShaderData *sd)
ccl_device float3	bsdf_microfacet_multi_ggx_glass_eval_transmit (const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf, ccl_addr_space uint *lcg_state)
ccl_device float3	bsdf_microfacet_multi_ggx_glass_eval_reflect (const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf, ccl_addr_space uint *lcg_state)
ccl_device int	bsdf_microfacet_multi_ggx_glass_sample (KernelGlobals *kg, const ShaderClosure *sc, float3 Ng, float3 I, float3 dIdx, float3 dIdy, float randu, float randv, float3 *eval, float3 *omega_in, float3 *domega_in_dx, float3 *domega_in_dy, float *pdf, ccl_addr_space uint *lcg_state)

Macro Definition Documentation

MF_FUNCTION_FULL_NAME

#define MF_FUNCTION_FULL_NAME

(

prefix

)

MF_NAME_EVAL(prefix, MF_PHASE_FUNCTION)

Definition at line 355 of file bsdf_microfacet_multi.h.

MF_MULTI_GLASS

#define MF_MULTI_GLASS

Definition at line 358 of file bsdf_microfacet_multi.h.

MF_MULTI_GLOSSY

#define MF_MULTI_GLOSSY

Definition at line 362 of file bsdf_microfacet_multi.h.

MF_NAME_EVAL

#define MF_NAME_EVAL	(		x,
			y
	)		MF_NAME_JOIN(x, y)

Definition at line 354 of file bsdf_microfacet_multi.h.

MF_NAME_JOIN

#define MF_NAME_JOIN	(		x,
			y
	)		x##_##y

Definition at line 353 of file bsdf_microfacet_multi.h.

MF_PHASE_FUNCTION [1/2]

#define MF_PHASE_FUNCTION   glass

Definition at line 361 of file bsdf_microfacet_multi.h.

MF_PHASE_FUNCTION [2/2]

#define MF_PHASE_FUNCTION   glossy

Definition at line 361 of file bsdf_microfacet_multi.h.

Function Documentation

bsdf_microfacet_multi_ggx_blur()

ccl_device void bsdf_microfacet_multi_ggx_blur	(	ShaderClosure *	sc,
		float	roughness
	)

Definition at line 365 of file bsdf_microfacet_multi.h.

References MicrofacetBsdf::alpha_x, MicrofacetBsdf::alpha_y, fmaxf, and usdtokens::roughness().

Referenced by bsdf_blur().

bsdf_microfacet_multi_ggx_common_setup()

ccl_device int bsdf_microfacet_multi_ggx_common_setup

(

MicrofacetBsdf *

bsdf

)

Definition at line 377 of file bsdf_microfacet_multi.h.

References MicrofacetBsdf::alpha_x, MicrofacetBsdf::alpha_y, clamp(), MicrofacetExtra::color, MicrofacetExtra::cspec0, MicrofacetBsdf::extra, saturate3(), SD_BSDF, SD_BSDF_HAS_EVAL, and SD_BSDF_NEEDS_LCG.

Referenced by bsdf_microfacet_multi_ggx_fresnel_setup(), bsdf_microfacet_multi_ggx_refraction_setup(), and bsdf_microfacet_multi_ggx_setup().

bsdf_microfacet_multi_ggx_eval_reflect()

ccl_device float3 bsdf_microfacet_multi_ggx_eval_reflect	(	const ShaderClosure *	sc,
		const float3	I,
		const float3	omega_in,
		float *	pdf,
		ccl_addr_space uint *	lcg_state
	)

Definition at line 428 of file bsdf_microfacet_multi.h.

References MicrofacetBsdf::alpha_x, MicrofacetBsdf::alpha_y, CLOSURE_BSDF_MICROFACET_MULTI_GGX_FRESNEL_ID, MicrofacetExtra::color, MicrofacetExtra::cspec0, dot(), MicrofacetBsdf::extra, I, MicrofacetBsdf::ior, make_float2, make_float3, make_orthonormals(), make_orthonormals_tangent(), mf_ggx_aniso_pdf(), mf_ggx_pdf(), MicrofacetBsdf::T, X, Y, and Z.

Referenced by bsdf_eval().

bsdf_microfacet_multi_ggx_eval_transmit()

ccl_device float3 bsdf_microfacet_multi_ggx_eval_transmit	(	const ShaderClosure *	sc,
		const float3	I,
		const float3	omega_in,
		float *	pdf,
		ccl_addr_space uint *	lcg_state
	)

Definition at line 418 of file bsdf_microfacet_multi.h.

References make_float3.

Referenced by bsdf_eval().

bsdf_microfacet_multi_ggx_fresnel_setup()

ccl_device int bsdf_microfacet_multi_ggx_fresnel_setup	(	MicrofacetBsdf *	bsdf,
		const ShaderData *	sd
	)

Definition at line 397 of file bsdf_microfacet_multi.h.

References bsdf_microfacet_fresnel_color(), bsdf_microfacet_multi_ggx_common_setup(), CLOSURE_BSDF_MICROFACET_MULTI_GGX_FRESNEL_ID, is_zero(), make_float3, and MicrofacetBsdf::T.

Referenced by MicrofacetMultiGGXFresnelClosure::setup(), MicrofacetMultiGGXAnisoFresnelClosure::setup(), and svm_node_closure_bsdf().

bsdf_microfacet_multi_ggx_glass_eval_reflect()

ccl_device float3 bsdf_microfacet_multi_ggx_glass_eval_reflect	(	const ShaderClosure *	sc,
		const float3	I,
		const float3	omega_in,
		float *	pdf,
		ccl_addr_space uint *	lcg_state
	)

Definition at line 597 of file bsdf_microfacet_multi.h.

References MicrofacetBsdf::alpha_x, MicrofacetBsdf::alpha_y, CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_FRESNEL_ID, MicrofacetExtra::color, MicrofacetExtra::cspec0, dot(), MicrofacetBsdf::extra, I, MicrofacetBsdf::ior, make_float3, make_orthonormals(), mf_glass_pdf(), X, Y, and Z.

Referenced by bsdf_eval().

bsdf_microfacet_multi_ggx_glass_eval_transmit()

ccl_device float3 bsdf_microfacet_multi_ggx_glass_eval_transmit	(	const ShaderClosure *	sc,
		const float3	I,
		const float3	omega_in,
		float *	pdf,
		ccl_addr_space uint *	lcg_state
	)

Definition at line 565 of file bsdf_microfacet_multi.h.

References MicrofacetBsdf::alpha_x, MicrofacetBsdf::alpha_y, MicrofacetExtra::color, dot(), MicrofacetBsdf::extra, I, MicrofacetBsdf::ior, make_float3, make_orthonormals(), mf_glass_pdf(), X, Y, and Z.

Referenced by bsdf_eval().

bsdf_microfacet_multi_ggx_glass_fresnel_setup()

ccl_device int bsdf_microfacet_multi_ggx_glass_fresnel_setup	(	MicrofacetBsdf *	bsdf,
		const ShaderData *	sd
	)

Definition at line 549 of file bsdf_microfacet_multi.h.

References MicrofacetBsdf::alpha_x, MicrofacetBsdf::alpha_y, bsdf_microfacet_fresnel_color(), clamp(), CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_FRESNEL_ID, MicrofacetExtra::color, MicrofacetExtra::cspec0, MicrofacetBsdf::extra, MicrofacetBsdf::ior, max, saturate3(), SD_BSDF, SD_BSDF_HAS_EVAL, and SD_BSDF_NEEDS_LCG.

Referenced by MicrofacetMultiGGXGlassFresnelClosure::setup(), and svm_node_closure_bsdf().

bsdf_microfacet_multi_ggx_glass_sample()

ccl_device int bsdf_microfacet_multi_ggx_glass_sample	(	KernelGlobals *	kg,
		const ShaderClosure *	sc,
		float3	Ng,
		float3	I,
		float3	dIdx,
		float3	dIdy,
		float	randu,
		float	randv,
		float3 *	eval,
		float3 *	omega_in,
		float3 *	domega_in_dx,
		float3 *	domega_in_dy,
		float *	pdf,
		ccl_addr_space uint *	lcg_state
	)

Definition at line 631 of file bsdf_microfacet_multi.h.

References __RAY_DIFFERENTIALS__, MicrofacetBsdf::alpha_x, MicrofacetBsdf::alpha_y, CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_FRESNEL_ID, MicrofacetExtra::color, MicrofacetExtra::cspec0, dot(), MicrofacetBsdf::extra, fresnel_dielectric(), I, MicrofacetBsdf::ior, LABEL_GLOSSY, LABEL_REFLECT, LABEL_SINGULAR, LABEL_TRANSMIT, make_float3, make_orthonormals(), max, mf_glass_pdf(), R, sqrtf, T, float3::x, X, float3::y, Y, float3::z, and Z.

Referenced by bsdf_sample().

bsdf_microfacet_multi_ggx_glass_setup()

ccl_device int bsdf_microfacet_multi_ggx_glass_setup

(

MicrofacetBsdf *

bsdf

)

Definition at line 537 of file bsdf_microfacet_multi.h.

References MicrofacetBsdf::alpha_x, MicrofacetBsdf::alpha_y, clamp(), CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_ID, MicrofacetExtra::color, MicrofacetBsdf::extra, MicrofacetBsdf::ior, max, saturate3(), SD_BSDF, SD_BSDF_HAS_EVAL, and SD_BSDF_NEEDS_LCG.

Referenced by MicrofacetMultiGGXGlassClosure::setup(), and svm_node_closure_bsdf().

bsdf_microfacet_multi_ggx_refraction_setup()

ccl_device int bsdf_microfacet_multi_ggx_refraction_setup

(

MicrofacetBsdf *

bsdf

)

Definition at line 409 of file bsdf_microfacet_multi.h.

References MicrofacetBsdf::alpha_x, MicrofacetBsdf::alpha_y, bsdf_microfacet_multi_ggx_common_setup(), and CLOSURE_BSDF_MICROFACET_MULTI_GGX_ID.

bsdf_microfacet_multi_ggx_sample()

ccl_device int bsdf_microfacet_multi_ggx_sample	(	KernelGlobals *	kg,
		const ShaderClosure *	sc,
		float3	Ng,
		float3	I,
		float3	dIdx,
		float3	dIdy,
		float	randu,
		float	randv,
		float3 *	eval,
		float3 *	omega_in,
		float3 *	domega_in_dx,
		float3 *	domega_in_dy,
		float *	pdf,
		ccl_addr_space uint *	lcg_state
	)

Definition at line 469 of file bsdf_microfacet_multi.h.

References MicrofacetBsdf::alpha_x, MicrofacetBsdf::alpha_y, CLOSURE_BSDF_MICROFACET_MULTI_GGX_FRESNEL_ID, MicrofacetExtra::color, MicrofacetExtra::cspec0, dot(), MicrofacetBsdf::extra, I, MicrofacetBsdf::ior, LABEL_GLOSSY, LABEL_REFLECT, LABEL_SINGULAR, make_float2, make_float3, make_orthonormals(), make_orthonormals_tangent(), mf_ggx_aniso_pdf(), mf_ggx_pdf(), MicrofacetBsdf::T, float3::x, X, float3::y, Y, float3::z, and Z.

Referenced by bsdf_sample().

bsdf_microfacet_multi_ggx_setup()

ccl_device int bsdf_microfacet_multi_ggx_setup

(

MicrofacetBsdf *

bsdf

)

Definition at line 387 of file bsdf_microfacet_multi.h.

References bsdf_microfacet_multi_ggx_common_setup(), CLOSURE_BSDF_MICROFACET_MULTI_GGX_ID, is_zero(), make_float3, and MicrofacetBsdf::T.

Referenced by MicrofacetMultiGGXClosure::setup(), MicrofacetMultiGGXAnisoClosure::setup(), and svm_node_closure_bsdf().

D_ggx()

CCL_NAMESPACE_BEGIN ccl_device_forceinline float D_ggx	(	float3	wm,
		float	alpha
	)

Definition at line 25 of file bsdf_microfacet_multi.h.

References alpha, M_PI_F, max, and float3::z.

Referenced by mf_eval(), mf_eval_phase_glass(), mf_eval_phase_glossy(), mf_ggx_pdf(), and mf_glass_pdf().

D_ggx_aniso()

ccl_device_forceinline float D_ggx_aniso	(	const float3	wm,
		const float2	alpha
	)

Definition at line 34 of file bsdf_microfacet_multi.h.

References alpha, M_PI_F, max, float3::x, float3::y, and float3::z.

Referenced by mf_eval(), mf_eval_phase_glossy(), and mf_ggx_aniso_pdf().

mf_C1()

ccl_device_forceinline float mf_C1

(

const float

h

)

Definition at line 218 of file bsdf_microfacet_multi.h.

References saturate().

Referenced by mf_eval().

mf_eval_phase_glass()

ccl_device_forceinline float3 mf_eval_phase_glass	(	const float3	w,
		const float	lambda,
		const float3	wo,
		const bool	wo_outside,
		const float2	alpha,
		const float	eta
	)

Definition at line 156 of file bsdf_microfacet_multi.h.

References alpha, D_ggx(), dot(), fresnel_dielectric_cos(), if(), make_float3, max, normalize(), v, w(), and float3::z.

Referenced by mf_eval().

mf_eval_phase_glossy()

ccl_device_forceinline float3 mf_eval_phase_glossy	(	const float3	w,
		const float	lambda,
		const float3	wo,
		const float2	alpha
	)

Definition at line 112 of file bsdf_microfacet_multi.h.

References alpha, D_ggx(), D_ggx_aniso(), make_float3, max, normalize(), w(), and float3::z.

Referenced by mf_eval().

mf_G1()

ccl_device_forceinline float mf_G1	(	const float3	w,
		const float	C1,
		const float	lambda
	)

Definition at line 224 of file bsdf_microfacet_multi.h.

References powf, and w().

Referenced by mf_eval(), mf_sample(), and mf_sample_height().

mf_ggx_albedo()

ccl_device_forceinline float mf_ggx_albedo

(

float

r

)

Definition at line 266 of file bsdf_microfacet_multi.h.

References expf, r, and saturate().

Referenced by mf_ggx_aniso_pdf(), mf_ggx_pdf(), and mf_glass_pdf().

mf_ggx_aniso_pdf()

ccl_device_forceinline float mf_ggx_aniso_pdf	(	const float3	wi,
		const float3	wo,
		const float2	alpha
	)

Definition at line 308 of file bsdf_microfacet_multi.h.

References alpha, D(), D_ggx_aniso(), M_1_PI_F, max, mf_ggx_albedo(), mf_lambda(), normalize(), sqrtf, and float3::z.

Referenced by bsdf_microfacet_multi_ggx_eval_reflect(), and bsdf_microfacet_multi_ggx_sample().

mf_ggx_pdf()

ccl_device_forceinline float mf_ggx_pdf	(	const float3	wi,
		const float3	wo,
		const float	alpha
	)

Definition at line 296 of file bsdf_microfacet_multi.h.

References alpha, D(), D_ggx(), M_1_PI_F, make_float2, max, mf_ggx_albedo(), mf_lambda(), normalize(), and float3::z.

Referenced by bsdf_microfacet_multi_ggx_eval_reflect(), and bsdf_microfacet_multi_ggx_sample().

mf_ggx_transmission_albedo()

ccl_device_inline float mf_ggx_transmission_albedo	(	float	a,
		float	ior
	)

Definition at line 278 of file bsdf_microfacet_multi.h.

References Freestyle::a, clamp(), expf, and saturate().

Referenced by mf_glass_pdf().

mf_glass_pdf()

ccl_device_forceinline float mf_glass_pdf	(	const float3	wi,
		const float3	wo,
		const float	alpha,
		const float	eta
	)

Definition at line 320 of file bsdf_microfacet_multi.h.

References alpha, D(), D_ggx(), dot(), fabsf, fresnel_dielectric_cos(), M_1_PI_F, make_float2, max, mf_ggx_albedo(), mf_ggx_transmission_albedo(), mf_lambda(), normalize_len(), and float3::z.

Referenced by bsdf_microfacet_multi_ggx_glass_eval_reflect(), bsdf_microfacet_multi_ggx_glass_eval_transmit(), and bsdf_microfacet_multi_ggx_glass_sample().

mf_invC1()

ccl_device_forceinline float mf_invC1

(

const float

h

)

Definition at line 213 of file bsdf_microfacet_multi.h.

References saturate().

Referenced by mf_sample_height().

mf_lambda()

ccl_device_forceinline float mf_lambda	(	const float3	w,
		const float2	alpha
	)

Definition at line 196 of file bsdf_microfacet_multi.h.

References alpha, dot(), make_float2, max, sqrtf, v, and w().

Referenced by mf_eval(), mf_ggx_aniso_pdf(), mf_ggx_pdf(), mf_glass_pdf(), and mf_sample().

mf_sample_height()

ccl_device_forceinline bool mf_sample_height	(	const float3	w,
		float *	h,
		float *	C1,
		float *	G1,
		float *	lambda,
		const float	U
	)

Definition at line 235 of file bsdf_microfacet_multi.h.

References fabsf, mf_G1(), mf_invC1(), powf, U, and w().

Referenced by mf_eval(), and mf_sample().

mf_sample_phase_glass()

ccl_device_forceinline float3 mf_sample_phase_glass	(	const float3	wi,
		const float	eta,
		const float3	wm,
		const float	randV,
		bool *	outside
	)

Definition at line 141 of file bsdf_microfacet_multi.h.

References dot(), fresnel_dielectric_cos(), normalize(), and safe_sqrtf().

Referenced by mf_eval(), and mf_sample().

mf_sample_phase_glossy()

ccl_device_forceinline float3 mf_sample_phase_glossy	(	const float3	wi,
		float3 *	weight,
		const float3	wm
	)

Definition at line 105 of file bsdf_microfacet_multi.h.

References dot().

Referenced by mf_eval(), and mf_sample().

mf_sample_vndf()

ccl_device_forceinline float3 mf_sample_vndf	(	const float3	wi,
		const float2	alpha,
		const float	randx,
		const float	randy
	)

Definition at line 86 of file bsdf_microfacet_multi.h.

References alpha, CCL_NAMESPACE_BEGIN::isfinite(), kernel_assert, make_float3, mf_sampleP22_11(), normalize(), safe_normalize(), float2::x, float3::x, float2::y, float3::y, and float3::z.

Referenced by mf_eval(), and mf_sample().

mf_sampleP22_11()

ccl_device_forceinline float2 mf_sampleP22_11	(	const float	cosI,
		const float	randx,
		const float	randy
	)

Definition at line 44 of file bsdf_microfacet_multi.h.

References A, cosf, D(), fabsf, M_2PI_F, make_float2, max, r, safe_sqrtf(), sinf, sqrtf, and z.

Referenced by mf_sample_vndf().