Blender  V2.93
bsdf.h
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1 /*
2  * Copyright 2011-2013 Blender Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 // clang-format off
18 #include "kernel/closure/bsdf_ashikhmin_velvet.h"
19 #include "kernel/closure/bsdf_diffuse.h"
20 #include "kernel/closure/bsdf_oren_nayar.h"
21 #include "kernel/closure/bsdf_phong_ramp.h"
22 #include "kernel/closure/bsdf_diffuse_ramp.h"
23 #include "kernel/closure/bsdf_microfacet.h"
24 #include "kernel/closure/bsdf_microfacet_multi.h"
25 #include "kernel/closure/bsdf_reflection.h"
26 #include "kernel/closure/bsdf_refraction.h"
27 #include "kernel/closure/bsdf_transparent.h"
28 #include "kernel/closure/bsdf_ashikhmin_shirley.h"
29 #include "kernel/closure/bsdf_toon.h"
30 #include "kernel/closure/bsdf_hair.h"
31 #include "kernel/closure/bsdf_hair_principled.h"
32 #include "kernel/closure/bsdf_principled_diffuse.h"
33 #include "kernel/closure/bsdf_principled_sheen.h"
34 #include "kernel/closure/bssrdf.h"
35 #include "kernel/closure/volume.h"
36 // clang-format on
37 
38 CCL_NAMESPACE_BEGIN
39 
40 /* Returns the square of the roughness of the closure if it has roughness,
41  * 0 for singular closures and 1 otherwise. */
42 ccl_device_inline float bsdf_get_specular_roughness_squared(const ShaderClosure *sc)
43 {
44  if (CLOSURE_IS_BSDF_SINGULAR(sc->type)) {
45  return 0.0f;
46  }
47 
48  if (CLOSURE_IS_BSDF_MICROFACET(sc->type)) {
49  MicrofacetBsdf *bsdf = (MicrofacetBsdf *)sc;
50  return bsdf->alpha_x * bsdf->alpha_y;
51  }
52 
53  return 1.0f;
54 }
55 
56 ccl_device_inline float bsdf_get_roughness_squared(const ShaderClosure *sc)
57 {
58  /* This version includes diffuse, mainly for baking Principled BSDF
59  * where specular and metallic zero otherwise does not bake the
60  * specified roughness parameter. */
61  if (sc->type == CLOSURE_BSDF_OREN_NAYAR_ID) {
62  OrenNayarBsdf *bsdf = (OrenNayarBsdf *)sc;
63  return sqr(sqr(bsdf->roughness));
64  }
65 
66  if (sc->type == CLOSURE_BSDF_PRINCIPLED_DIFFUSE_ID) {
67  PrincipledDiffuseBsdf *bsdf = (PrincipledDiffuseBsdf *)sc;
68  return sqr(sqr(bsdf->roughness));
69  }
70 
71  if (CLOSURE_IS_BSDF_DIFFUSE(sc->type)) {
72  return 0.0f;
73  }
74 
75  return bsdf_get_specular_roughness_squared(sc);
76 }
77 
78 /* An additional term to smooth illumination on grazing angles when using bump mapping.
79  * Based on "Taming the Shadow Terminator" by Matt Jen-Yuan Chiang,
80  * Yining Karl Li and Brent Burley. */
81 ccl_device_inline float bump_shadowing_term(float3 Ng, float3 N, float3 I)
82 {
83  float g = safe_divide(dot(Ng, I), dot(N, I) * dot(Ng, N));
84 
85  /* If the incoming light is on the unshadowed side, return full brightness. */
86  if (g >= 1.0f) {
87  return 1.0f;
88  }
89 
90  /* If the incoming light points away from the surface, return black. */
91  if (g < 0.0f) {
92  return 0.0f;
93  }
94 
95  /* Return smoothed value to avoid discontinuity at perpendicular angle. */
96  float g2 = sqr(g);
97  return -g2 * g + g2 + g;
98 }
99 
100 /* Shadow terminator workaround, taken from Appleseed.
101  * Original code is under the MIT License
102  * Copyright (c) 2019 Francois Beaune, The appleseedhq Organization */
103 ccl_device_inline float shift_cos_in(float cos_in, const float frequency_multiplier)
104 {
105  cos_in = min(cos_in, 1.0f);
106 
107  const float angle = fast_acosf(cos_in);
108  const float val = max(cosf(angle * frequency_multiplier), 0.0f) / cos_in;
109  return val;
110 }
111 
112 ccl_device_inline int bsdf_sample(KernelGlobals *kg,
113  ShaderData *sd,
114  const ShaderClosure *sc,
115  float randu,
116  float randv,
117  float3 *eval,
118  float3 *omega_in,
119  differential3 *domega_in,
120  float *pdf)
121 {
122  /* For curves use the smooth normal, particularly for ribbons the geometric
123  * normal gives too much darkening otherwise. */
124  int label;
125  const float3 Ng = (sd->type & PRIMITIVE_ALL_CURVE) ? sc->N : sd->Ng;
126 
127  switch (sc->type) {
128  case CLOSURE_BSDF_DIFFUSE_ID:
129  case CLOSURE_BSDF_BSSRDF_ID:
130  label = bsdf_diffuse_sample(sc,
131  Ng,
132  sd->I,
133  sd->dI.dx,
134  sd->dI.dy,
135  randu,
136  randv,
137  eval,
138  omega_in,
139  &domega_in->dx,
140  &domega_in->dy,
141  pdf);
142  break;
143 #ifdef __SVM__
144  case CLOSURE_BSDF_OREN_NAYAR_ID:
145  label = bsdf_oren_nayar_sample(sc,
146  Ng,
147  sd->I,
148  sd->dI.dx,
149  sd->dI.dy,
150  randu,
151  randv,
152  eval,
153  omega_in,
154  &domega_in->dx,
155  &domega_in->dy,
156  pdf);
157  break;
158 # ifdef __OSL__
159  case CLOSURE_BSDF_PHONG_RAMP_ID:
160  label = bsdf_phong_ramp_sample(sc,
161  Ng,
162  sd->I,
163  sd->dI.dx,
164  sd->dI.dy,
165  randu,
166  randv,
167  eval,
168  omega_in,
169  &domega_in->dx,
170  &domega_in->dy,
171  pdf);
172  break;
173  case CLOSURE_BSDF_DIFFUSE_RAMP_ID:
174  label = bsdf_diffuse_ramp_sample(sc,
175  Ng,
176  sd->I,
177  sd->dI.dx,
178  sd->dI.dy,
179  randu,
180  randv,
181  eval,
182  omega_in,
183  &domega_in->dx,
184  &domega_in->dy,
185  pdf);
186  break;
187 # endif
188  case CLOSURE_BSDF_TRANSLUCENT_ID:
189  label = bsdf_translucent_sample(sc,
190  Ng,
191  sd->I,
192  sd->dI.dx,
193  sd->dI.dy,
194  randu,
195  randv,
196  eval,
197  omega_in,
198  &domega_in->dx,
199  &domega_in->dy,
200  pdf);
201  break;
202  case CLOSURE_BSDF_REFLECTION_ID:
203  label = bsdf_reflection_sample(sc,
204  Ng,
205  sd->I,
206  sd->dI.dx,
207  sd->dI.dy,
208  randu,
209  randv,
210  eval,
211  omega_in,
212  &domega_in->dx,
213  &domega_in->dy,
214  pdf);
215  break;
216  case CLOSURE_BSDF_REFRACTION_ID:
217  label = bsdf_refraction_sample(sc,
218  Ng,
219  sd->I,
220  sd->dI.dx,
221  sd->dI.dy,
222  randu,
223  randv,
224  eval,
225  omega_in,
226  &domega_in->dx,
227  &domega_in->dy,
228  pdf);
229  break;
230  case CLOSURE_BSDF_TRANSPARENT_ID:
231  label = bsdf_transparent_sample(sc,
232  Ng,
233  sd->I,
234  sd->dI.dx,
235  sd->dI.dy,
236  randu,
237  randv,
238  eval,
239  omega_in,
240  &domega_in->dx,
241  &domega_in->dy,
242  pdf);
243  break;
244  case CLOSURE_BSDF_MICROFACET_GGX_ID:
245  case CLOSURE_BSDF_MICROFACET_GGX_FRESNEL_ID:
246  case CLOSURE_BSDF_MICROFACET_GGX_CLEARCOAT_ID:
247  case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID:
248  label = bsdf_microfacet_ggx_sample(kg,
249  sc,
250  Ng,
251  sd->I,
252  sd->dI.dx,
253  sd->dI.dy,
254  randu,
255  randv,
256  eval,
257  omega_in,
258  &domega_in->dx,
259  &domega_in->dy,
260  pdf);
261  break;
262  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_ID:
263  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_FRESNEL_ID:
264  label = bsdf_microfacet_multi_ggx_sample(kg,
265  sc,
266  Ng,
267  sd->I,
268  sd->dI.dx,
269  sd->dI.dy,
270  randu,
271  randv,
272  eval,
273  omega_in,
274  &domega_in->dx,
275  &domega_in->dy,
276  pdf,
277  &sd->lcg_state);
278  break;
279  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_ID:
280  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_FRESNEL_ID:
281  label = bsdf_microfacet_multi_ggx_glass_sample(kg,
282  sc,
283  Ng,
284  sd->I,
285  sd->dI.dx,
286  sd->dI.dy,
287  randu,
288  randv,
289  eval,
290  omega_in,
291  &domega_in->dx,
292  &domega_in->dy,
293  pdf,
294  &sd->lcg_state);
295  break;
296  case CLOSURE_BSDF_MICROFACET_BECKMANN_ID:
297  case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID:
298  label = bsdf_microfacet_beckmann_sample(kg,
299  sc,
300  Ng,
301  sd->I,
302  sd->dI.dx,
303  sd->dI.dy,
304  randu,
305  randv,
306  eval,
307  omega_in,
308  &domega_in->dx,
309  &domega_in->dy,
310  pdf);
311  break;
312  case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID:
313  label = bsdf_ashikhmin_shirley_sample(sc,
314  Ng,
315  sd->I,
316  sd->dI.dx,
317  sd->dI.dy,
318  randu,
319  randv,
320  eval,
321  omega_in,
322  &domega_in->dx,
323  &domega_in->dy,
324  pdf);
325  break;
326  case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID:
327  label = bsdf_ashikhmin_velvet_sample(sc,
328  Ng,
329  sd->I,
330  sd->dI.dx,
331  sd->dI.dy,
332  randu,
333  randv,
334  eval,
335  omega_in,
336  &domega_in->dx,
337  &domega_in->dy,
338  pdf);
339  break;
340  case CLOSURE_BSDF_DIFFUSE_TOON_ID:
341  label = bsdf_diffuse_toon_sample(sc,
342  Ng,
343  sd->I,
344  sd->dI.dx,
345  sd->dI.dy,
346  randu,
347  randv,
348  eval,
349  omega_in,
350  &domega_in->dx,
351  &domega_in->dy,
352  pdf);
353  break;
354  case CLOSURE_BSDF_GLOSSY_TOON_ID:
355  label = bsdf_glossy_toon_sample(sc,
356  Ng,
357  sd->I,
358  sd->dI.dx,
359  sd->dI.dy,
360  randu,
361  randv,
362  eval,
363  omega_in,
364  &domega_in->dx,
365  &domega_in->dy,
366  pdf);
367  break;
368  case CLOSURE_BSDF_HAIR_REFLECTION_ID:
369  label = bsdf_hair_reflection_sample(sc,
370  Ng,
371  sd->I,
372  sd->dI.dx,
373  sd->dI.dy,
374  randu,
375  randv,
376  eval,
377  omega_in,
378  &domega_in->dx,
379  &domega_in->dy,
380  pdf);
381  break;
382  case CLOSURE_BSDF_HAIR_TRANSMISSION_ID:
383  label = bsdf_hair_transmission_sample(sc,
384  Ng,
385  sd->I,
386  sd->dI.dx,
387  sd->dI.dy,
388  randu,
389  randv,
390  eval,
391  omega_in,
392  &domega_in->dx,
393  &domega_in->dy,
394  pdf);
395  break;
396  case CLOSURE_BSDF_HAIR_PRINCIPLED_ID:
397  label = bsdf_principled_hair_sample(
398  kg, sc, sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf);
399  break;
400 # ifdef __PRINCIPLED__
401  case CLOSURE_BSDF_PRINCIPLED_DIFFUSE_ID:
402  case CLOSURE_BSDF_BSSRDF_PRINCIPLED_ID:
403  label = bsdf_principled_diffuse_sample(sc,
404  Ng,
405  sd->I,
406  sd->dI.dx,
407  sd->dI.dy,
408  randu,
409  randv,
410  eval,
411  omega_in,
412  &domega_in->dx,
413  &domega_in->dy,
414  pdf);
415  break;
416  case CLOSURE_BSDF_PRINCIPLED_SHEEN_ID:
417  label = bsdf_principled_sheen_sample(sc,
418  Ng,
419  sd->I,
420  sd->dI.dx,
421  sd->dI.dy,
422  randu,
423  randv,
424  eval,
425  omega_in,
426  &domega_in->dx,
427  &domega_in->dy,
428  pdf);
429  break;
430 # endif /* __PRINCIPLED__ */
431 #endif
432 #ifdef __VOLUME__
433  case CLOSURE_VOLUME_HENYEY_GREENSTEIN_ID:
434  label = volume_henyey_greenstein_sample(sc,
435  sd->I,
436  sd->dI.dx,
437  sd->dI.dy,
438  randu,
439  randv,
440  eval,
441  omega_in,
442  &domega_in->dx,
443  &domega_in->dy,
444  pdf);
445  break;
446 #endif
447  default:
448  label = LABEL_NONE;
449  break;
450  }
451 
452  /* Test if BSDF sample should be treated as transparent for background. */
453  if (label & LABEL_TRANSMIT) {
454  float threshold_squared = kernel_data.background.transparent_roughness_squared_threshold;
455 
456  if (threshold_squared >= 0.0f) {
457  if (bsdf_get_specular_roughness_squared(sc) <= threshold_squared) {
458  label |= LABEL_TRANSMIT_TRANSPARENT;
459  }
460  }
461  }
462  else {
463  /* Shadow terminator offset. */
464  const float frequency_multiplier =
465  kernel_tex_fetch(__objects, sd->object).shadow_terminator_offset;
466  if (frequency_multiplier > 1.0f) {
467  *eval *= shift_cos_in(dot(*omega_in, sc->N), frequency_multiplier);
468  }
469  if (label & LABEL_DIFFUSE) {
470  if (!isequal_float3(sc->N, sd->N)) {
471  *eval *= bump_shadowing_term((label & LABEL_TRANSMIT) ? -sd->N : sd->N, sc->N, *omega_in);
472  }
473  }
474  }
475 
476  return label;
477 }
478 
479 #ifndef __KERNEL_CUDA__
480 ccl_device
481 #else
482 ccl_device_inline
483 #endif
484  float3
485  bsdf_eval(KernelGlobals *kg,
486  ShaderData *sd,
487  const ShaderClosure *sc,
488  const float3 omega_in,
489  float *pdf)
490 {
491  /* For curves use the smooth normal, particularly for ribbons the geometric
492  * normal gives too much darkening otherwise. */
493  const float3 Ng = (sd->type & PRIMITIVE_ALL_CURVE) ? sd->N : sd->Ng;
494  float3 eval;
495 
496  if (dot(Ng, omega_in) >= 0.0f) {
497  switch (sc->type) {
498  case CLOSURE_BSDF_DIFFUSE_ID:
499  case CLOSURE_BSDF_BSSRDF_ID:
500  eval = bsdf_diffuse_eval_reflect(sc, sd->I, omega_in, pdf);
501  break;
502 #ifdef __SVM__
503  case CLOSURE_BSDF_OREN_NAYAR_ID:
504  eval = bsdf_oren_nayar_eval_reflect(sc, sd->I, omega_in, pdf);
505  break;
506 # ifdef __OSL__
507  case CLOSURE_BSDF_PHONG_RAMP_ID:
508  eval = bsdf_phong_ramp_eval_reflect(sc, sd->I, omega_in, pdf);
509  break;
510  case CLOSURE_BSDF_DIFFUSE_RAMP_ID:
511  eval = bsdf_diffuse_ramp_eval_reflect(sc, sd->I, omega_in, pdf);
512  break;
513 # endif
514  case CLOSURE_BSDF_TRANSLUCENT_ID:
515  eval = bsdf_translucent_eval_reflect(sc, sd->I, omega_in, pdf);
516  break;
517  case CLOSURE_BSDF_REFLECTION_ID:
518  eval = bsdf_reflection_eval_reflect(sc, sd->I, omega_in, pdf);
519  break;
520  case CLOSURE_BSDF_REFRACTION_ID:
521  eval = bsdf_refraction_eval_reflect(sc, sd->I, omega_in, pdf);
522  break;
523  case CLOSURE_BSDF_TRANSPARENT_ID:
524  eval = bsdf_transparent_eval_reflect(sc, sd->I, omega_in, pdf);
525  break;
526  case CLOSURE_BSDF_MICROFACET_GGX_ID:
527  case CLOSURE_BSDF_MICROFACET_GGX_FRESNEL_ID:
528  case CLOSURE_BSDF_MICROFACET_GGX_CLEARCOAT_ID:
529  case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID:
530  eval = bsdf_microfacet_ggx_eval_reflect(sc, sd->I, omega_in, pdf);
531  break;
532  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_ID:
533  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_FRESNEL_ID:
534  eval = bsdf_microfacet_multi_ggx_eval_reflect(sc, sd->I, omega_in, pdf, &sd->lcg_state);
535  break;
536  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_ID:
537  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_FRESNEL_ID:
538  eval = bsdf_microfacet_multi_ggx_glass_eval_reflect(
539  sc, sd->I, omega_in, pdf, &sd->lcg_state);
540  break;
541  case CLOSURE_BSDF_MICROFACET_BECKMANN_ID:
542  case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID:
543  eval = bsdf_microfacet_beckmann_eval_reflect(sc, sd->I, omega_in, pdf);
544  break;
545  case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID:
546  eval = bsdf_ashikhmin_shirley_eval_reflect(sc, sd->I, omega_in, pdf);
547  break;
548  case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID:
549  eval = bsdf_ashikhmin_velvet_eval_reflect(sc, sd->I, omega_in, pdf);
550  break;
551  case CLOSURE_BSDF_DIFFUSE_TOON_ID:
552  eval = bsdf_diffuse_toon_eval_reflect(sc, sd->I, omega_in, pdf);
553  break;
554  case CLOSURE_BSDF_GLOSSY_TOON_ID:
555  eval = bsdf_glossy_toon_eval_reflect(sc, sd->I, omega_in, pdf);
556  break;
557  case CLOSURE_BSDF_HAIR_PRINCIPLED_ID:
558  eval = bsdf_principled_hair_eval(kg, sd, sc, omega_in, pdf);
559  break;
560  case CLOSURE_BSDF_HAIR_REFLECTION_ID:
561  eval = bsdf_hair_reflection_eval_reflect(sc, sd->I, omega_in, pdf);
562  break;
563  case CLOSURE_BSDF_HAIR_TRANSMISSION_ID:
564  eval = bsdf_hair_transmission_eval_reflect(sc, sd->I, omega_in, pdf);
565  break;
566 # ifdef __PRINCIPLED__
567  case CLOSURE_BSDF_PRINCIPLED_DIFFUSE_ID:
568  case CLOSURE_BSDF_BSSRDF_PRINCIPLED_ID:
569  eval = bsdf_principled_diffuse_eval_reflect(sc, sd->I, omega_in, pdf);
570  break;
571  case CLOSURE_BSDF_PRINCIPLED_SHEEN_ID:
572  eval = bsdf_principled_sheen_eval_reflect(sc, sd->I, omega_in, pdf);
573  break;
574 # endif /* __PRINCIPLED__ */
575 #endif
576 #ifdef __VOLUME__
577  case CLOSURE_VOLUME_HENYEY_GREENSTEIN_ID:
578  eval = volume_henyey_greenstein_eval_phase(sc, sd->I, omega_in, pdf);
579  break;
580 #endif
581  default:
582  eval = make_float3(0.0f, 0.0f, 0.0f);
583  break;
584  }
585  if (CLOSURE_IS_BSDF_DIFFUSE(sc->type)) {
586  if (!isequal_float3(sc->N, sd->N)) {
587  eval *= bump_shadowing_term(sd->N, sc->N, omega_in);
588  }
589  }
590  /* Shadow terminator offset. */
591  const float frequency_multiplier =
592  kernel_tex_fetch(__objects, sd->object).shadow_terminator_offset;
593  if (frequency_multiplier > 1.0f) {
594  eval *= shift_cos_in(dot(omega_in, sc->N), frequency_multiplier);
595  }
596  }
597  else {
598  switch (sc->type) {
599  case CLOSURE_BSDF_DIFFUSE_ID:
600  case CLOSURE_BSDF_BSSRDF_ID:
601  eval = bsdf_diffuse_eval_transmit(sc, sd->I, omega_in, pdf);
602  break;
603 #ifdef __SVM__
604  case CLOSURE_BSDF_OREN_NAYAR_ID:
605  eval = bsdf_oren_nayar_eval_transmit(sc, sd->I, omega_in, pdf);
606  break;
607  case CLOSURE_BSDF_TRANSLUCENT_ID:
608  eval = bsdf_translucent_eval_transmit(sc, sd->I, omega_in, pdf);
609  break;
610  case CLOSURE_BSDF_REFLECTION_ID:
611  eval = bsdf_reflection_eval_transmit(sc, sd->I, omega_in, pdf);
612  break;
613  case CLOSURE_BSDF_REFRACTION_ID:
614  eval = bsdf_refraction_eval_transmit(sc, sd->I, omega_in, pdf);
615  break;
616  case CLOSURE_BSDF_TRANSPARENT_ID:
617  eval = bsdf_transparent_eval_transmit(sc, sd->I, omega_in, pdf);
618  break;
619  case CLOSURE_BSDF_MICROFACET_GGX_ID:
620  case CLOSURE_BSDF_MICROFACET_GGX_FRESNEL_ID:
621  case CLOSURE_BSDF_MICROFACET_GGX_CLEARCOAT_ID:
622  case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID:
623  eval = bsdf_microfacet_ggx_eval_transmit(sc, sd->I, omega_in, pdf);
624  break;
625  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_ID:
626  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_FRESNEL_ID:
627  eval = bsdf_microfacet_multi_ggx_eval_transmit(sc, sd->I, omega_in, pdf, &sd->lcg_state);
628  break;
629  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_ID:
630  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_FRESNEL_ID:
631  eval = bsdf_microfacet_multi_ggx_glass_eval_transmit(
632  sc, sd->I, omega_in, pdf, &sd->lcg_state);
633  break;
634  case CLOSURE_BSDF_MICROFACET_BECKMANN_ID:
635  case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID:
636  eval = bsdf_microfacet_beckmann_eval_transmit(sc, sd->I, omega_in, pdf);
637  break;
638  case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID:
639  eval = bsdf_ashikhmin_shirley_eval_transmit(sc, sd->I, omega_in, pdf);
640  break;
641  case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID:
642  eval = bsdf_ashikhmin_velvet_eval_transmit(sc, sd->I, omega_in, pdf);
643  break;
644  case CLOSURE_BSDF_DIFFUSE_TOON_ID:
645  eval = bsdf_diffuse_toon_eval_transmit(sc, sd->I, omega_in, pdf);
646  break;
647  case CLOSURE_BSDF_GLOSSY_TOON_ID:
648  eval = bsdf_glossy_toon_eval_transmit(sc, sd->I, omega_in, pdf);
649  break;
650  case CLOSURE_BSDF_HAIR_PRINCIPLED_ID:
651  eval = bsdf_principled_hair_eval(kg, sd, sc, omega_in, pdf);
652  break;
653  case CLOSURE_BSDF_HAIR_REFLECTION_ID:
654  eval = bsdf_hair_reflection_eval_transmit(sc, sd->I, omega_in, pdf);
655  break;
656  case CLOSURE_BSDF_HAIR_TRANSMISSION_ID:
657  eval = bsdf_hair_transmission_eval_transmit(sc, sd->I, omega_in, pdf);
658  break;
659 # ifdef __PRINCIPLED__
660  case CLOSURE_BSDF_PRINCIPLED_DIFFUSE_ID:
661  case CLOSURE_BSDF_BSSRDF_PRINCIPLED_ID:
662  eval = bsdf_principled_diffuse_eval_transmit(sc, sd->I, omega_in, pdf);
663  break;
664  case CLOSURE_BSDF_PRINCIPLED_SHEEN_ID:
665  eval = bsdf_principled_sheen_eval_transmit(sc, sd->I, omega_in, pdf);
666  break;
667 # endif /* __PRINCIPLED__ */
668 #endif
669 #ifdef __VOLUME__
670  case CLOSURE_VOLUME_HENYEY_GREENSTEIN_ID:
671  eval = volume_henyey_greenstein_eval_phase(sc, sd->I, omega_in, pdf);
672  break;
673 #endif
674  default:
675  eval = make_float3(0.0f, 0.0f, 0.0f);
676  break;
677  }
678  if (CLOSURE_IS_BSDF_DIFFUSE(sc->type)) {
679  if (!isequal_float3(sc->N, sd->N)) {
680  eval *= bump_shadowing_term(-sd->N, sc->N, omega_in);
681  }
682  }
683  }
684 
685  return eval;
686 }
687 
688 ccl_device void bsdf_blur(KernelGlobals *kg, ShaderClosure *sc, float roughness)
689 {
690  /* ToDo: do we want to blur volume closures? */
691 #ifdef __SVM__
692  switch (sc->type) {
693  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_ID:
694  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_FRESNEL_ID:
695  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_ID:
696  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_FRESNEL_ID:
697  bsdf_microfacet_multi_ggx_blur(sc, roughness);
698  break;
699  case CLOSURE_BSDF_MICROFACET_GGX_ID:
700  case CLOSURE_BSDF_MICROFACET_GGX_FRESNEL_ID:
701  case CLOSURE_BSDF_MICROFACET_GGX_CLEARCOAT_ID:
702  case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID:
703  bsdf_microfacet_ggx_blur(sc, roughness);
704  break;
705  case CLOSURE_BSDF_MICROFACET_BECKMANN_ID:
706  case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID:
707  bsdf_microfacet_beckmann_blur(sc, roughness);
708  break;
709  case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID:
710  bsdf_ashikhmin_shirley_blur(sc, roughness);
711  break;
712  case CLOSURE_BSDF_HAIR_PRINCIPLED_ID:
713  bsdf_principled_hair_blur(sc, roughness);
714  break;
715  default:
716  break;
717  }
718 #endif
719 }
720 
721 ccl_device bool bsdf_merge(ShaderClosure *a, ShaderClosure *b)
722 {
723 #ifdef __SVM__
724  switch (a->type) {
725  case CLOSURE_BSDF_TRANSPARENT_ID:
726  return true;
727  case CLOSURE_BSDF_DIFFUSE_ID:
728  case CLOSURE_BSDF_BSSRDF_ID:
729  case CLOSURE_BSDF_TRANSLUCENT_ID:
730  return bsdf_diffuse_merge(a, b);
731  case CLOSURE_BSDF_OREN_NAYAR_ID:
732  return bsdf_oren_nayar_merge(a, b);
733  case CLOSURE_BSDF_REFLECTION_ID:
734  case CLOSURE_BSDF_REFRACTION_ID:
735  case CLOSURE_BSDF_MICROFACET_GGX_ID:
736  case CLOSURE_BSDF_MICROFACET_GGX_FRESNEL_ID:
737  case CLOSURE_BSDF_MICROFACET_GGX_CLEARCOAT_ID:
738  case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID:
739  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_ID:
740  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_FRESNEL_ID:
741  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_ID:
742  case CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_FRESNEL_ID:
743  case CLOSURE_BSDF_MICROFACET_BECKMANN_ID:
744  case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID:
745  case CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID:
746  return bsdf_microfacet_merge(a, b);
747  case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID:
748  return bsdf_ashikhmin_velvet_merge(a, b);
749  case CLOSURE_BSDF_DIFFUSE_TOON_ID:
750  case CLOSURE_BSDF_GLOSSY_TOON_ID:
751  return bsdf_toon_merge(a, b);
752  case CLOSURE_BSDF_HAIR_REFLECTION_ID:
753  case CLOSURE_BSDF_HAIR_TRANSMISSION_ID:
754  return bsdf_hair_merge(a, b);
755 # ifdef __PRINCIPLED__
756  case CLOSURE_BSDF_PRINCIPLED_DIFFUSE_ID:
757  case CLOSURE_BSDF_BSSRDF_PRINCIPLED_ID:
758  return bsdf_principled_diffuse_merge(a, b);
759 # endif
760 # ifdef __VOLUME__
761  case CLOSURE_VOLUME_HENYEY_GREENSTEIN_ID:
762  return volume_henyey_greenstein_merge(a, b);
763 # endif
764  default:
765  return false;
766  }
767 #else
768  return false;
769 #endif
770 }
771 
772 CCL_NAMESPACE_END
safe_divide
MINLINE float safe_divide(float a, float b)
Definition: math_base_safe_inline.c:27
if
if(data)
Definition: bmesh_operator_api_inline.h:177
bsdf_sample
ccl_device_inline int bsdf_sample(KernelGlobals *kg, ShaderData *sd, const ShaderClosure *sc, float randu, float randv, float3 *eval, float3 *omega_in, differential3 *domega_in, float *pdf)
Definition: bsdf.h:112
shift_cos_in
ccl_device_inline float shift_cos_in(float cos_in, const float frequency_multiplier)
Definition: bsdf.h:103
bsdf_get_specular_roughness_squared
CCL_NAMESPACE_BEGIN ccl_device_inline float bsdf_get_specular_roughness_squared(const ShaderClosure *sc)
Definition: bsdf.h:42
bump_shadowing_term
ccl_device_inline float bump_shadowing_term(float3 Ng, float3 N, float3 I)
Definition: bsdf.h:81
bsdf_merge
ccl_device bool bsdf_merge(ShaderClosure *a, ShaderClosure *b)
Definition: bsdf.h:721
bsdf_get_roughness_squared
ccl_device_inline float bsdf_get_roughness_squared(const ShaderClosure *sc)
Definition: bsdf.h:56
bsdf_blur
ccl_device void bsdf_blur(KernelGlobals *kg, ShaderClosure *sc, float roughness)
Definition: bsdf.h:688
bsdf_eval
ccl_device float3 bsdf_eval(KernelGlobals *kg, ShaderData *sd, const ShaderClosure *sc, const float3 omega_in, float *pdf)
Definition: bsdf.h:485
bsdf_ashikhmin_shirley.h
bsdf_ashikhmin_shirley_blur
ccl_device void bsdf_ashikhmin_shirley_blur(ShaderClosure *sc, float roughness)
Definition: bsdf_ashikhmin_shirley.h:43
bsdf_ashikhmin_shirley_eval_reflect
ccl_device_forceinline float3 bsdf_ashikhmin_shirley_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_ashikhmin_shirley.h:56
bsdf_ashikhmin_shirley_sample
ccl_device int bsdf_ashikhmin_shirley_sample(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)
Definition: bsdf_ashikhmin_shirley.h:140
bsdf_ashikhmin_shirley_eval_transmit
ccl_device float3 bsdf_ashikhmin_shirley_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_ashikhmin_shirley.h:123
bsdf_ashikhmin_velvet.h
bsdf_ashikhmin_velvet_eval_reflect
ccl_device float3 bsdf_ashikhmin_velvet_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_ashikhmin_velvet.h:65
bsdf_ashikhmin_velvet_merge
ccl_device bool bsdf_ashikhmin_velvet_merge(const ShaderClosure *a, const ShaderClosure *b)
Definition: bsdf_ashikhmin_velvet.h:57
bsdf_ashikhmin_velvet_eval_transmit
ccl_device float3 bsdf_ashikhmin_velvet_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_ashikhmin_velvet.h:107
bsdf_ashikhmin_velvet_sample
ccl_device int bsdf_ashikhmin_velvet_sample(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)
Definition: bsdf_ashikhmin_velvet.h:115
bsdf_diffuse.h
bsdf_diffuse_eval_reflect
ccl_device float3 bsdf_diffuse_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_diffuse.h:60
bsdf_diffuse_sample
ccl_device int bsdf_diffuse_sample(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)
Definition: bsdf_diffuse.h:81
bsdf_diffuse_merge
ccl_device bool bsdf_diffuse_merge(const ShaderClosure *a, const ShaderClosure *b)
Definition: bsdf_diffuse.h:52
bsdf_translucent_eval_transmit
ccl_device float3 bsdf_translucent_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_diffuse.h:130
bsdf_translucent_eval_reflect
ccl_device float3 bsdf_translucent_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_diffuse.h:122
bsdf_diffuse_eval_transmit
ccl_device float3 bsdf_diffuse_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_diffuse.h:73
bsdf_translucent_sample
ccl_device int bsdf_translucent_sample(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)
Definition: bsdf_diffuse.h:143
bsdf_diffuse_ramp.h
bsdf_hair.h
bsdf_hair_merge
ccl_device bool bsdf_hair_merge(const ShaderClosure *a, const ShaderClosure *b)
Definition: bsdf_hair.h:65
bsdf_hair_reflection_sample
ccl_device int bsdf_hair_reflection_sample(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)
Definition: bsdf_hair.h:183
bsdf_hair_reflection_eval_transmit
ccl_device float3 bsdf_hair_reflection_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_hair.h:129
bsdf_hair_transmission_eval_transmit
ccl_device float3 bsdf_hair_transmission_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_hair.h:137
bsdf_hair_transmission_eval_reflect
ccl_device float3 bsdf_hair_transmission_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_hair.h:121
bsdf_hair_reflection_eval_reflect
ccl_device float3 bsdf_hair_reflection_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_hair.h:74
bsdf_hair_transmission_sample
ccl_device int bsdf_hair_transmission_sample(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)
Definition: bsdf_hair.h:244
bsdf_hair_principled.h
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)
Definition: bsdf_hair_principled.h:359
bsdf_principled_hair_blur
ccl_device void bsdf_principled_hair_blur(ShaderClosure *sc, float roughness)
Definition: bsdf_hair_principled.h:486
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: bsdf_hair_principled.h:281
bsdf_microfacet.h
bsdf_microfacet_beckmann_sample
ccl_device int bsdf_microfacet_beckmann_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)
Definition: bsdf_microfacet.h:989
bsdf_microfacet_ggx_sample
ccl_device int bsdf_microfacet_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)
Definition: bsdf_microfacet.h:561
bsdf_microfacet_beckmann_eval_reflect
ccl_device float3 bsdf_microfacet_beckmann_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_microfacet.h:855
bsdf_microfacet_merge
ccl_device bool bsdf_microfacet_merge(const ShaderClosure *a, const ShaderClosure *b)
Definition: bsdf_microfacet.h:355
bsdf_microfacet_ggx_eval_transmit
ccl_device float3 bsdf_microfacet_ggx_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_microfacet.h:503
bsdf_microfacet_ggx_eval_reflect
ccl_device float3 bsdf_microfacet_ggx_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_microfacet.h:390
bsdf_microfacet_beckmann_eval_transmit
ccl_device float3 bsdf_microfacet_beckmann_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_microfacet.h:934
bsdf_microfacet_ggx_blur
ccl_device void bsdf_microfacet_ggx_blur(ShaderClosure *sc, float roughness)
Definition: bsdf_microfacet.h:382
bsdf_microfacet_beckmann_blur
ccl_device void bsdf_microfacet_beckmann_blur(ShaderClosure *sc, float roughness)
Definition: bsdf_microfacet.h:816
bsdf_microfacet_multi.h
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: bsdf_microfacet_multi.h:418
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: bsdf_microfacet_multi.h:631
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: bsdf_microfacet_multi.h:565
bsdf_microfacet_multi_ggx_blur
ccl_device void bsdf_microfacet_multi_ggx_blur(ShaderClosure *sc, float roughness)
Definition: bsdf_microfacet_multi.h:365
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: bsdf_microfacet_multi.h:597
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: bsdf_microfacet_multi.h:428
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: bsdf_microfacet_multi.h:469
bsdf_oren_nayar.h
bsdf_oren_nayar_eval_transmit
ccl_device float3 bsdf_oren_nayar_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_oren_nayar.h:88
bsdf_oren_nayar_sample
ccl_device int bsdf_oren_nayar_sample(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)
Definition: bsdf_oren_nayar.h:96
bsdf_oren_nayar_eval_reflect
ccl_device float3 bsdf_oren_nayar_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_oren_nayar.h:72
bsdf_oren_nayar_merge
ccl_device bool bsdf_oren_nayar_merge(const ShaderClosure *a, const ShaderClosure *b)
Definition: bsdf_oren_nayar.h:64
bsdf_phong_ramp.h
bsdf_principled_diffuse.h
bsdf_principled_diffuse_eval_reflect
ccl_device float3 bsdf_principled_diffuse_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_principled_diffuse.h:72
bsdf_principled_diffuse_eval_transmit
ccl_device float3 bsdf_principled_diffuse_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_principled_diffuse.h:94
bsdf_principled_diffuse_merge
ccl_device bool bsdf_principled_diffuse_merge(const ShaderClosure *a, const ShaderClosure *b)
Definition: bsdf_principled_diffuse.h:64
bsdf_principled_diffuse_sample
ccl_device int bsdf_principled_diffuse_sample(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)
Definition: bsdf_principled_diffuse.h:102
bsdf_principled_sheen.h
bsdf_principled_sheen_sample
ccl_device int bsdf_principled_sheen_sample(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)
Definition: bsdf_principled_sheen.h:103
bsdf_principled_sheen_eval_transmit
ccl_device float3 bsdf_principled_sheen_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_principled_sheen.h:95
bsdf_principled_sheen_eval_reflect
ccl_device float3 bsdf_principled_sheen_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_principled_sheen.h:73
bsdf_reflection.h
bsdf_reflection_sample
ccl_device int bsdf_reflection_sample(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)
Definition: bsdf_reflection.h:62
bsdf_reflection_eval_reflect
ccl_device float3 bsdf_reflection_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_reflection.h:46
bsdf_reflection_eval_transmit
ccl_device float3 bsdf_reflection_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_reflection.h:54
bsdf_refraction.h
bsdf_refraction_eval_transmit
ccl_device float3 bsdf_refraction_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_refraction.h:54
bsdf_refraction_sample
ccl_device int bsdf_refraction_sample(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)
Definition: bsdf_refraction.h:62
bsdf_refraction_eval_reflect
ccl_device float3 bsdf_refraction_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_refraction.h:46
bsdf_toon.h
bsdf_diffuse_toon_eval_transmit
ccl_device float3 bsdf_diffuse_toon_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_toon.h:108
bsdf_glossy_toon_sample
ccl_device int bsdf_glossy_toon_sample(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)
Definition: bsdf_toon.h:201
bsdf_diffuse_toon_eval_reflect
ccl_device float3 bsdf_diffuse_toon_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_toon.h:86
bsdf_glossy_toon_eval_transmit
ccl_device float3 bsdf_glossy_toon_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_toon.h:193
bsdf_glossy_toon_eval_reflect
ccl_device float3 bsdf_glossy_toon_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_toon.h:165
bsdf_diffuse_toon_sample
ccl_device int bsdf_diffuse_toon_sample(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)
Definition: bsdf_toon.h:116
bsdf_toon_merge
ccl_device bool bsdf_toon_merge(const ShaderClosure *a, const ShaderClosure *b)
Definition: bsdf_toon.h:58
bsdf_transparent.h
bsdf_transparent_sample
ccl_device int bsdf_transparent_sample(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)
Definition: bsdf_transparent.h:101
bsdf_transparent_eval_transmit
ccl_device float3 bsdf_transparent_eval_transmit(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_transparent.h:93
bsdf_transparent_eval_reflect
ccl_device float3 bsdf_transparent_eval_reflect(const ShaderClosure *sc, const float3 I, const float3 omega_in, float *pdf)
Definition: bsdf_transparent.h:85
angle
SIMD_FORCE_INLINE btScalar angle(const btVector3 &v) const
Return the angle between this and another vector.
Definition: btVector3.h:356
label
const char * label
Definition: deg_debug_stats_gnuplot.cc:47
volume_henyey_greenstein_sample
ccl_device int volume_henyey_greenstein_sample(const ShaderClosure *sc, 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)
Definition: kernel/closure/volume.h:125
volume_henyey_greenstein_eval_phase
ccl_device float3 volume_henyey_greenstein_eval_phase(const ShaderClosure *sc, const float3 I, float3 omega_in, float *pdf)
Definition: kernel/closure/volume.h:73
volume_henyey_greenstein_merge
ccl_device bool volume_henyey_greenstein_merge(const ShaderClosure *a, const ShaderClosure *b)
Definition: kernel/closure/volume.h:65
kernel_data
#define kernel_data
Definition: kernel_compat_cpu.h:120
kernel_tex_fetch
#define kernel_tex_fetch(tex, index)
Definition: kernel_compat_cpu.h:113
cosf
#define cosf(x)
Definition: kernel_compat_cuda.h:171
ccl_device
#define ccl_device
Definition: kernel_compat_cuda.h:59
ccl_device_inline
#define ccl_device_inline
Definition: kernel_compat_cuda.h:61
CCL_NAMESPACE_END
#define CCL_NAMESPACE_END
Definition: kernel_compat_cuda.h:23
make_float3
#define make_float3(x, y, z)
Definition: kernel_compat_opencl.h:109
kg
kg
Definition: kernel_split_function.h:63
PRIMITIVE_ALL_CURVE
@ PRIMITIVE_ALL_CURVE
Definition: kernel_types.h:698
ShaderData
ShaderData
Definition: kernel_types.h:1015
LABEL_TRANSMIT
@ LABEL_TRANSMIT
Definition: kernel_types.h:328
LABEL_TRANSMIT_TRANSPARENT
@ LABEL_TRANSMIT_TRANSPARENT
Definition: kernel_types.h:335
LABEL_DIFFUSE
@ LABEL_DIFFUSE
Definition: kernel_types.h:330
LABEL_NONE
@ LABEL_NONE
Definition: kernel_types.h:327
ShaderClosure
ShaderClosure
Definition: kernel_types.h:831
CCL_NAMESPACE_BEGIN
Definition: blender_python.cpp:54
Freestyle::a
static unsigned a[3]
Definition: RandGen.cpp:92
usdtokens::roughness
static const pxr::TfToken roughness("roughness", pxr::TfToken::Immortal)
I
#define I
Definition: node_texture_proc.c:40
N
params N
Definition: osl_closures.cpp:106
min
#define min(a, b)
Definition: sort.c:51
CLOSURE_IS_BSDF_MICROFACET
#define CLOSURE_IS_BSDF_MICROFACET(type)
Definition: svm_types.h:612
CLOSURE_IS_BSDF_SINGULAR
#define CLOSURE_IS_BSDF_SINGULAR(type)
Definition: svm_types.h:605
CLOSURE_IS_BSDF_DIFFUSE
#define CLOSURE_IS_BSDF_DIFFUSE(type)
Definition: svm_types.h:596
CLOSURE_BSDF_MICROFACET_GGX_CLEARCOAT_ID
@ CLOSURE_BSDF_MICROFACET_GGX_CLEARCOAT_ID
Definition: svm_types.h:546
CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID
@ CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID
Definition: svm_types.h:559
CLOSURE_VOLUME_HENYEY_GREENSTEIN_ID
@ CLOSURE_VOLUME_HENYEY_GREENSTEIN_ID
Definition: svm_types.h:587
CLOSURE_BSDF_PHONG_RAMP_ID
@ CLOSURE_BSDF_PHONG_RAMP_ID
Definition: svm_types.h:552
CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID
@ CLOSURE_BSDF_ASHIKHMIN_SHIRLEY_ID
Definition: svm_types.h:550
CLOSURE_BSDF_DIFFUSE_RAMP_ID
@ CLOSURE_BSDF_DIFFUSE_RAMP_ID
Definition: svm_types.h:536
CLOSURE_BSDF_HAIR_PRINCIPLED_ID
@ CLOSURE_BSDF_HAIR_PRINCIPLED_ID
Definition: svm_types.h:565
CLOSURE_BSDF_PRINCIPLED_DIFFUSE_ID
@ CLOSURE_BSDF_PRINCIPLED_DIFFUSE_ID
Definition: svm_types.h:537
CLOSURE_BSDF_DIFFUSE_ID
@ CLOSURE_BSDF_DIFFUSE_ID
Definition: svm_types.h:534
CLOSURE_BSDF_TRANSPARENT_ID
@ CLOSURE_BSDF_TRANSPARENT_ID
Definition: svm_types.h:571
CLOSURE_BSDF_DIFFUSE_TOON_ID
@ CLOSURE_BSDF_DIFFUSE_TOON_ID
Definition: svm_types.h:539
CLOSURE_BSDF_MICROFACET_GGX_ID
@ CLOSURE_BSDF_MICROFACET_GGX_ID
Definition: svm_types.h:544
CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID
@ CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID
Definition: svm_types.h:558
CLOSURE_BSDF_MICROFACET_MULTI_GGX_ID
@ CLOSURE_BSDF_MICROFACET_MULTI_GGX_ID
Definition: svm_types.h:548
CLOSURE_BSDF_PRINCIPLED_SHEEN_ID
@ CLOSURE_BSDF_PRINCIPLED_SHEEN_ID
Definition: svm_types.h:538
CLOSURE_BSDF_HAIR_TRANSMISSION_ID
@ CLOSURE_BSDF_HAIR_TRANSMISSION_ID
Definition: svm_types.h:566
CLOSURE_BSDF_REFRACTION_ID
@ CLOSURE_BSDF_REFRACTION_ID
Definition: svm_types.h:557
CLOSURE_BSDF_BSSRDF_PRINCIPLED_ID
@ CLOSURE_BSDF_BSSRDF_PRINCIPLED_ID
Definition: svm_types.h:570
CLOSURE_BSDF_MICROFACET_BECKMANN_ID
@ CLOSURE_BSDF_MICROFACET_BECKMANN_ID
Definition: svm_types.h:547
CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_ID
@ CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_ID
Definition: svm_types.h:560
CLOSURE_BSDF_OREN_NAYAR_ID
@ CLOSURE_BSDF_OREN_NAYAR_ID
Definition: svm_types.h:535
CLOSURE_BSDF_GLOSSY_TOON_ID
@ CLOSURE_BSDF_GLOSSY_TOON_ID
Definition: svm_types.h:553
CLOSURE_BSDF_MICROFACET_GGX_FRESNEL_ID
@ CLOSURE_BSDF_MICROFACET_GGX_FRESNEL_ID
Definition: svm_types.h:545
CLOSURE_BSDF_BSSRDF_ID
@ CLOSURE_BSDF_BSSRDF_ID
Definition: svm_types.h:569
CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_FRESNEL_ID
@ CLOSURE_BSDF_MICROFACET_MULTI_GGX_GLASS_FRESNEL_ID
Definition: svm_types.h:563
CLOSURE_BSDF_MICROFACET_MULTI_GGX_FRESNEL_ID
@ CLOSURE_BSDF_MICROFACET_MULTI_GGX_FRESNEL_ID
Definition: svm_types.h:549
CLOSURE_BSDF_HAIR_REFLECTION_ID
@ CLOSURE_BSDF_HAIR_REFLECTION_ID
Definition: svm_types.h:554
CLOSURE_BSDF_TRANSLUCENT_ID
@ CLOSURE_BSDF_TRANSLUCENT_ID
Definition: svm_types.h:540
CLOSURE_BSDF_REFLECTION_ID
@ CLOSURE_BSDF_REFLECTION_ID
Definition: svm_types.h:543
CLOSURE_BSDF_ASHIKHMIN_VELVET_ID
@ CLOSURE_BSDF_ASHIKHMIN_VELVET_ID
Definition: svm_types.h:551
max
float max
Definition: transform_gizmo_3d.c:107
sqr
ccl_device_inline float sqr(float a)
Definition: util_math.h:651
fast_acosf
ccl_device float fast_acosf(float x)
Definition: util_math_fast.h:278
dot
ccl_device_inline float dot(const float2 &a, const float2 &b)
Definition: util_math_float2.h:193
isequal_float3
ccl_device_inline bool isequal_float3(const float3 a, const float3 b)
Definition: util_math_float3.h:484
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