Blender V4.3
Classes | Typedefs | Functions
bsdf_principled_hair_huang.h File Reference
#include "kernel/closure/bsdf_util.h"
#include "kernel/sample/lcg.h"
#include "kernel/util/color.h"

Go to the source code of this file.

Classes

struct  HuangHairExtra
 
struct  HuangHairBSDF
 

Typedefs

typedef CCL_NAMESPACE_BEGIN struct HuangHairExtra HuangHairExtra
 
typedef struct HuangHairBSDF HuangHairBSDF
 

Functions

ccl_device_forceinline float bsdf_hair_huang_energy_scale (KernelGlobals kg, float mu, float rough, float ior)
 
ccl_device_inline float3 sample_wh (KernelGlobals kg, const float roughness, const float3 wi, const float3 wm, const float2 rand)
 
ccl_device_inline bool microfacet_visible (const float3 v, const float3 m, const float3 h)
 
ccl_device_inline bool microfacet_visible (const float3 wi, const float3 wo, const float3 m, const float3 h)
 
ccl_device_inline float bsdf_Go (float alpha2, float cos_NI, float cos_NO)
 
ccl_device Spectrum bsdf_hair_huang_eval_r (KernelGlobals kg, ccl_private const ShaderClosure *sc, const float3 wi, const float3 wo)
 
ccl_device Spectrum bsdf_hair_huang_eval_trrt (const float T, const float R, const Spectrum A)
 
ccl_device Spectrum bsdf_hair_huang_eval_residual (KernelGlobals kg, ccl_private const ShaderClosure *sc, const float3 wi, const float3 wo, uint rng_quadrature)
 
ccl_device int bsdf_hair_huang_sample (const KernelGlobals kg, ccl_private const ShaderClosure *sc, ccl_private ShaderData *sd, float3 rand, ccl_private Spectrum *eval, ccl_private float3 *wo, ccl_private float *pdf, ccl_private float2 *sampled_roughness)
 
ccl_device Spectrum bsdf_hair_huang_eval (KernelGlobals kg, ccl_private const ShaderData *sd, ccl_private const ShaderClosure *sc, const float3 wo, ccl_private float *pdf)
 
ccl_device void bsdf_hair_huang_blur (ccl_private ShaderClosure *sc, float roughness)
 
ccl_device Spectrum bsdf_hair_huang_albedo (ccl_private const ShaderData *sd, ccl_private const ShaderClosure *sc)
 
Hair coordinate system utils.
ccl_device_inline float sin_theta (const float3 w)
 
ccl_device_inline float cos_theta (const float3 w)
 
ccl_device_inline float tan_theta (const float3 w)
 
ccl_device float sin_phi (const float3 w)
 
ccl_device float2 sincos_phi (const float3 w)
 
ccl_device_inline float dir_theta (const float3 w)
 
ccl_device_inline float dir_phi (const float3 w)
 
ccl_device_inline float2 dir_sph (const float3 w)
 
ccl_device_inline float to_phi (float gamma, float b)
 
ccl_device_inline float to_gamma (float phi, float b)
 
ccl_device_inline float h_to_gamma (const float h_div_r, const float b, const float3 wi)
 
ccl_device_inline float2 to_point (float gamma, float b)
 
ccl_device_inline float3 sphg_dir (float theta, float gamma, float b)
 
ccl_device_inline float arc_length (float e2, float gamma)
 
ccl_device_inline bool is_nearfield (ccl_private const HuangHairBSDF *bsdf)
 

Typedef Documentation

◆ HuangHairBSDF

typedef struct HuangHairBSDF HuangHairBSDF

◆ HuangHairExtra

typedef CCL_NAMESPACE_BEGIN struct HuangHairExtra HuangHairExtra

Function Documentation

◆ arc_length()

ccl_device_inline float arc_length ( float e2,
float gamma )

Definition at line 182 of file bsdf_principled_hair_huang.h.

References sinf, sqr(), and sqrtf.

Referenced by bsdf_hair_huang_eval_r(), bsdf_hair_huang_eval_residual(), compute_bbone_segment_boundaries(), and blender::ed::space_node::viewer_linking::get_viewer_node_position_candidates().

◆ bsdf_Go()

ccl_device_inline float bsdf_Go ( float alpha2,
float cos_NI,
float cos_NO )

Definition at line 313 of file bsdf_principled_hair_huang.h.

References bsdf_lambda().

Referenced by bsdf_hair_huang_eval_residual(), and bsdf_hair_huang_sample().

◆ bsdf_hair_huang_albedo()

ccl_device Spectrum bsdf_hair_huang_albedo ( ccl_private const ShaderData * sd,
ccl_private const ShaderClosure * sc )

Definition at line 889 of file bsdf_principled_hair_huang.h.

References ccl_private, cos_from_sin(), dot(), exp(), fresnel_dielectric(), make_float3(), one_spectrum, refract_angle(), safe_divide(), sqr(), and float3::y.

Referenced by bsdf_albedo().

◆ bsdf_hair_huang_blur()

ccl_device void bsdf_hair_huang_blur ( ccl_private ShaderClosure * sc,
float roughness )

Definition at line 880 of file bsdf_principled_hair_huang.h.

References ccl_private, fmaxf, and HuangHairBSDF::roughness.

Referenced by bsdf_blur().

◆ bsdf_hair_huang_energy_scale()

ccl_device_forceinline float bsdf_hair_huang_energy_scale ( KernelGlobals kg,
float mu,
float rough,
float ior )

Definition at line 270 of file bsdf_principled_hair_huang.h.

References fabsf, kernel_data, lookup_table_read_3D(), sqrtf, and z().

Referenced by bsdf_hair_huang_eval_r(), bsdf_hair_huang_eval_residual(), and bsdf_hair_huang_sample().

◆ bsdf_hair_huang_eval()

ccl_device Spectrum bsdf_hair_huang_eval ( KernelGlobals kg,
ccl_private const ShaderData * sd,
ccl_private const ShaderClosure * sc,
const float3 wo,
ccl_private float * pdf )

Definition at line 787 of file bsdf_principled_hair_huang.h.

References acosf, b, bsdf_hair_huang_eval_r(), bsdf_hair_huang_eval_residual(), ccl_private, cos_theta(), dir_phi(), dot(), fabsf, fmaxf, fminf, h_to_gamma(), is_nearfield(), isnan_safe(), kernel_assert, M_2PI_F, make_float3(), max, min, tan_theta(), tanf, to_gamma(), X, Y, and zero_spectrum.

Referenced by bsdf_eval().

◆ bsdf_hair_huang_eval_r()

ccl_device Spectrum bsdf_hair_huang_eval_r ( KernelGlobals kg,
ccl_private const ShaderClosure * sc,
const float3 wi,
const float3 wo )

Definition at line 320 of file bsdf_principled_hair_huang.h.

References arc_length(), b, bsdf_D(), bsdf_G(), bsdf_hair_huang_energy_scale(), ccl_private, ceilf, dot(), float, fresnel_dielectric_cos(), G, make_float3(), make_spectrum, microfacet_visible(), normalize(), sphg_dir(), sqr(), sqrtf, float3::x, float3::z, and zero_float3().

Referenced by bsdf_hair_huang_eval().

◆ bsdf_hair_huang_eval_residual()

ccl_device Spectrum bsdf_hair_huang_eval_residual ( KernelGlobals kg,
ccl_private const ShaderClosure * sc,
const float3 wi,
const float3 wo,
uint rng_quadrature )

Definition at line 386 of file bsdf_principled_hair_huang.h.

References arc_length(), b, bsdf_D(), bsdf_G(), bsdf_Go(), bsdf_hair_huang_energy_scale(), bsdf_hair_huang_eval_trrt(), ccl_private, ceilf, cos_theta(), cosf, dir_phi(), dot(), exp(), fabsf, fresnel_dielectric(), fresnel_dielectric_cos(), isfinite_safe(), lcg_step_float(), len, longitudinal_scattering(), M, M_PI_F, make_float2(), microfacet_visible(), N, reflect(), refract_angle(), sample_wh(), sin_theta(), sphg_dir(), sqr(), sqrtf, T1, T2, T3, to_phi(), to_point(), and zero_spectrum.

Referenced by bsdf_hair_huang_eval().

◆ bsdf_hair_huang_eval_trrt()

ccl_device Spectrum bsdf_hair_huang_eval_trrt ( const float T,
const float R,
const Spectrum A )

Definition at line 376 of file bsdf_principled_hair_huang.h.

References A, max, one_spectrum, R, and sqr().

Referenced by bsdf_hair_huang_eval_residual().

◆ bsdf_hair_huang_sample()

ccl_device int bsdf_hair_huang_sample ( const KernelGlobals kg,
ccl_private const ShaderClosure * sc,
ccl_private ShaderData * sd,
float3 rand,
ccl_private Spectrum * eval,
ccl_private float3 * wo,
ccl_private float * pdf,
ccl_private float2 * sampled_roughness )

Definition at line 569 of file bsdf_principled_hair_huang.h.

References average(), b, bsdf_Go(), bsdf_hair_huang_energy_scale(), ccl_private, cos_from_sin(), cos_theta(), cosf, dir_phi(), dot(), exp(), expf, fabsf, fast_sincosf(), fresnel_dielectric(), h_to_gamma(), is_nearfield(), kernel_assert, LABEL_GLOSSY, LABEL_NONE, LABEL_REFLECT, lcg_step_float(), len, logf, M_2PI_F, M_PI_F, make_float2(), make_float3(), make_spectrum, max, microfacet_visible(), one_spectrum, R, reflect(), refract_angle(), HuangHairBSDF::roughness, sample_wh(), sin_theta(), sphg_dir(), sqr(), sqrt(), sqrtf, T1, T2, T3, to_phi(), to_point(), TR, X, float3::x, Y, float3::y, Z, float3::z, and zero_spectrum.

Referenced by bsdf_sample().

◆ cos_theta()

ccl_device_inline float cos_theta ( const float3 w)

Definition at line 79 of file bsdf_principled_hair_huang.h.

References safe_sqrtf(), sqr(), and w().

Referenced by bsdf_ashikhmin_shirley_sample(), bsdf_ashikhmin_shirley_sample_first_quadrant(), bsdf_hair_huang_eval(), bsdf_hair_huang_eval_residual(), bsdf_hair_huang_sample(), dir_theta(), light_tree_importance(), pdf_cos_hemisphere(), phase_draine(), phase_draine_sample(), phase_fournier_forand(), phase_fournier_forand_impl(), phase_fournier_forand_newton(), phase_fournier_forand_sample(), phase_henyey_greenstein(), phase_henyey_greenstein_sample(), phase_rayleigh(), phase_rayleigh_sample(), phase_sample_direction(), point_light_sample(), blender::eevee::Sampling::sample_hemisphere(), blender::eevee::Sampling::sample_sphere(), sample_uniform_cone(), sin_phi(), sincos_phi(), sphg_dir(), spot_light_sample(), tan_theta(), volume_draine_eval(), volume_fournier_forand_eval(), volume_henyey_greenstein_eval(), and volume_rayleigh_eval().

◆ dir_phi()

ccl_device_inline float dir_phi ( const float3 w)

Definition at line 111 of file bsdf_principled_hair_huang.h.

References atan2f, and w().

Referenced by bsdf_hair_huang_eval(), bsdf_hair_huang_eval_residual(), bsdf_hair_huang_sample(), and dir_sph().

◆ dir_sph()

ccl_device_inline float2 dir_sph ( const float3 w)

Definition at line 118 of file bsdf_principled_hair_huang.h.

References dir_phi(), dir_theta(), make_float2(), and w().

◆ dir_theta()

ccl_device_inline float dir_theta ( const float3 w)

Definition at line 104 of file bsdf_principled_hair_huang.h.

References atan2f, cos_theta(), sin_theta(), and w().

Referenced by dir_sph().

◆ h_to_gamma()

ccl_device_inline float h_to_gamma ( const float h_div_r,
const float b,
const float3 wi )

Definition at line 147 of file bsdf_principled_hair_huang.h.

References acosf, asinf, atan2f, b, float3::x, and float3::z.

Referenced by bsdf_hair_huang_eval(), and bsdf_hair_huang_sample().

◆ is_nearfield()

ccl_device_inline bool is_nearfield ( ccl_private const HuangHairBSDF * bsdf)

Definition at line 187 of file bsdf_principled_hair_huang.h.

Referenced by bsdf_hair_huang_eval(), and bsdf_hair_huang_sample().

◆ microfacet_visible() [1/2]

ccl_device_inline bool microfacet_visible ( const float3 v,
const float3 m,
const float3 h )

Definition at line 298 of file bsdf_principled_hair_huang.h.

References dot(), and v.

Referenced by bsdf_hair_huang_eval_r(), bsdf_hair_huang_eval_residual(), bsdf_hair_huang_sample(), and microfacet_visible().

◆ microfacet_visible() [2/2]

ccl_device_inline bool microfacet_visible ( const float3 wi,
const float3 wo,
const float3 m,
const float3 h )

Definition at line 304 of file bsdf_principled_hair_huang.h.

References microfacet_visible().

◆ sample_wh()

ccl_device_inline float3 sample_wh ( KernelGlobals kg,
const float roughness,
const float3 wi,
const float3 wm,
const float2 rand )

Definition at line 282 of file bsdf_principled_hair_huang.h.

References dot(), make_float3(), make_orthonormals(), microfacet_ggx_sample_vndf(), float3::x, float3::y, and float3::z.

Referenced by bsdf_hair_huang_eval_residual(), and bsdf_hair_huang_sample().

◆ sin_phi()

ccl_device float sin_phi ( const float3 w)

Definition at line 91 of file bsdf_principled_hair_huang.h.

References cos_theta(), and w().

Referenced by bmo_create_cone_exec(), bmo_create_uvsphere_exec(), bsdf_ashikhmin_shirley_sample(), bsdf_ashikhmin_shirley_sample_first_quadrant(), sphg_dir(), to_gamma(), and triangle_light_sample().

◆ sin_theta()

ccl_device_inline float sin_theta ( const float3 w)

Definition at line 73 of file bsdf_principled_hair_huang.h.

References w().

Referenced by background_cdf(), background_map_pdf(), background_map_sample(), bsdf_ashikhmin_shirley_sample(), bsdf_hair_huang_eval_residual(), bsdf_hair_huang_sample(), blender::geometry::calculate_sphere_vertex_data(), dir_theta(), equirectangular_range_to_direction(), light_tree_importance(), phase_sample_direction(), blender::eevee::Sampling::sample_hemisphere(), blender::eevee::Sampling::sample_sphere(), spherical_to_direction(), sphg_dir(), and tan_theta().

◆ sincos_phi()

ccl_device float2 sincos_phi ( const float3 w)

Definition at line 96 of file bsdf_principled_hair_huang.h.

References cos_theta(), make_float2(), and w().

◆ sphg_dir()

ccl_device_inline float3 sphg_dir ( float theta,
float gamma,
float b )

Definition at line 162 of file bsdf_principled_hair_huang.h.

References b, cos_theta(), fabsf, fast_sincosf(), inversesqrtf(), make_float3(), signf(), sin_phi(), sin_theta(), and sqr().

Referenced by bsdf_hair_huang_eval_r(), bsdf_hair_huang_eval_residual(), and bsdf_hair_huang_sample().

◆ tan_theta()

ccl_device_inline float tan_theta ( const float3 w)

Definition at line 85 of file bsdf_principled_hair_huang.h.

References cos_theta(), sin_theta(), and w().

Referenced by bsdf_hair_huang_eval().

◆ to_gamma()

ccl_device_inline float to_gamma ( float phi,
float b )

Definition at line 134 of file bsdf_principled_hair_huang.h.

References atan2f, b, fast_sincosf(), and sin_phi().

Referenced by bsdf_hair_huang_eval().

◆ to_phi()

ccl_device_inline float to_phi ( float gamma,
float b )

Definition at line 124 of file bsdf_principled_hair_huang.h.

References atan2f, b, and fast_sincosf().

Referenced by bsdf_hair_huang_eval_residual(), and bsdf_hair_huang_sample().

◆ to_point()

ccl_device_inline float2 to_point ( float gamma,
float b )

Definition at line 154 of file bsdf_principled_hair_huang.h.

References b, fast_sincosf(), and make_float2().

Referenced by bsdf_hair_huang_eval_residual(), and bsdf_hair_huang_sample().

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