#include "kernel/kernel_color.h"

Classes
struct	PrincipledHairExtra

struct	PrincipledHairBSDF

Macros
#define	__BSDF_HAIR_PRINCIPLED_H__

Typedefs
typedef ccl_addr_space struct PrincipledHairBSDF	PrincipledHairBSDF

Functions
ccl_device_inline float	cos_from_sin (const float s)

ccl_device_inline float	delta_phi (int p, float gamma_o, float gamma_t)

ccl_device_inline float	wrap_angle (float a)

ccl_device_inline float	logistic (float x, float s)

ccl_device_inline float	logistic_cdf (float x, float s)

ccl_device_inline float	bessel_I0 (float x)

ccl_device_inline float	log_bessel_I0 (float x)

ccl_device_inline float	trimmed_logistic (float x, float s)

ccl_device_inline float	sample_trimmed_logistic (float u, float s)

ccl_device_inline float	azimuthal_scattering (float phi, int p, float s, float gamma_o, float gamma_t)

ccl_device_inline float	longitudinal_scattering (float sin_theta_i, float cos_theta_i, float sin_theta_o, float cos_theta_o, float v)

ccl_device_inline float4	combine_with_energy (KernelGlobals *kg, float3 c)

ccl_device_inline void	hair_attenuation (KernelGlobals kg, float f, float3 T, float4 Ap)

ccl_device_inline void	hair_alpha_angles (float sin_theta_i, float cos_theta_i, float alpha, float *angles)

ccl_device float3	bsdf_principled_hair_eval (KernelGlobals kg, const ShaderData sd, const ShaderClosure sc, const float3 omega_in, float pdf)

ccl_device int	bsdf_principled_hair_sample (KernelGlobals kg, const ShaderClosure sc, ShaderData sd, float randu, float randv, float3 eval, float3 omega_in, float3 domega_in_dx, float3 domega_in_dy, float pdf)

ccl_device void	bsdf_principled_hair_blur (ShaderClosure *sc, float roughness)

ccl_device_inline float	bsdf_principled_hair_albedo_roughness_scale (const float azimuthal_roughness)

ccl_device float3	bsdf_principled_hair_albedo (ShaderClosure *sc)

ccl_device_inline float3	bsdf_principled_hair_sigma_from_reflectance (const float3 color, const float azimuthal_roughness)

ccl_device_inline float3	bsdf_principled_hair_sigma_from_concentration (const float eumelanin, const float pheomelanin)

Variables
CCL_NAMESPACE_BEGIN typedef ccl_addr_space struct PrincipledHairExtra	PrincipledHairExtra

Macro Definition Documentation

◆ __BSDF_HAIR_PRINCIPLED_H__

#define __BSDF_HAIR_PRINCIPLED_H__

Definition at line 24 of file bsdf_hair_principled.h.

Typedef Documentation

◆ PrincipledHairBSDF

typedef ccl_addr_space struct PrincipledHairBSDF PrincipledHairBSDF

Function Documentation

◆ azimuthal_scattering()

ccl_device_inline float azimuthal_scattering	(	float	phi,
		int	p,
		float	s,
		float	gamma_o,
		float	gamma_t
	)

Definition at line 156 of file bsdf_hair_principled.h.

References delta_phi(), trimmed_logistic(), and wrap_angle().

Referenced by bsdf_principled_hair_eval(), and bsdf_principled_hair_sample().

◆ bessel_I0()

ccl_device_inline float bessel_I0 ( float x )

Definition at line 103 of file bsdf_hair_principled.h.

References sqr(), and x.

Referenced by log_bessel_I0(), and longitudinal_scattering().

◆ bsdf_principled_hair_albedo()

ccl_device float3 bsdf_principled_hair_albedo ( ShaderClosure * sc )

Definition at line 504 of file bsdf_hair_principled.h.

References bsdf_principled_hair_albedo_roughness_scale(), exp3(), PrincipledHairBSDF::sigma, sqrt(), and PrincipledHairBSDF::v.

◆ bsdf_principled_hair_albedo_roughness_scale()

ccl_device_inline float bsdf_principled_hair_albedo_roughness_scale ( const float azimuthal_roughness )

Definition at line 497 of file bsdf_hair_principled.h.

References x.

Referenced by bsdf_principled_hair_albedo(), and bsdf_principled_hair_sigma_from_reflectance().

◆ bsdf_principled_hair_blur()

ccl_device void bsdf_principled_hair_blur	(	ShaderClosure *	sc,
		float	roughness
	)

Definition at line 486 of file bsdf_hair_principled.h.

References fmaxf, PrincipledHairBSDF::m0_roughness, usdtokens::roughness(), PrincipledHairBSDF::s, and PrincipledHairBSDF::v.

Referenced by bsdf_blur().

◆ bsdf_principled_hair_eval()

ccl_device float3 bsdf_principled_hair_eval	(	KernelGlobals *	kg,
		const ShaderData *	sd,
		const ShaderClosure *	sc,
		const float3	omega_in,
		float *	pdf
	)

Definition at line 281 of file bsdf_hair_principled.h.

References PrincipledHairBSDF::alpha, atan2f, azimuthal_scattering(), cos_from_sin(), cross(), dot(), PrincipledHairBSDF::eta, exp3(), PrincipledHairBSDF::extra, F, fabsf, float4_to_float3(), fresnel_dielectric_cos(), PrincipledHairExtra::geom, hair_alpha_angles(), hair_attenuation(), isfinite3_safe(), isfinite_safe(), kernel_assert, kg, longitudinal_scattering(), PrincipledHairBSDF::m0_roughness, M_1_2PI_F, make_float3, PrincipledHairBSDF::s, safe_asinf(), safe_normalize(), PrincipledHairBSDF::sigma, sqr(), sqrtf, T, PrincipledHairBSDF::v, float3::x, X, float3::y, Y, float3::z, and Z.

Referenced by bsdf_eval().

◆ bsdf_principled_hair_sample()

ccl_device int bsdf_principled_hair_sample	(	KernelGlobals *	kg,
		const ShaderClosure *	sc,
		ShaderData *	sd,
		float	randu,
		float	randv,
		float3 *	eval,
		float3 *	omega_in,
		float3 *	domega_in_dx,
		float3 *	domega_in_dy,
		float *	pdf
	)