diff options
Diffstat (limited to 'intern/cycles/kernel/svm/svm_bsdf.h')
| -rw-r--r-- | intern/cycles/kernel/svm/svm_bsdf.h | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/intern/cycles/kernel/svm/svm_bsdf.h b/intern/cycles/kernel/svm/svm_bsdf.h new file mode 100644 index 00000000000..f02dc786c6b --- /dev/null +++ b/intern/cycles/kernel/svm/svm_bsdf.h @@ -0,0 +1,228 @@ +/* + * Copyright 2011, Blender Foundation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "bsdf_ashikhmin_velvet.h" +#include "bsdf_diffuse.h" +#include "bsdf_microfacet.h" +#include "bsdf_reflection.h" +#include "bsdf_refraction.h" +#include "bsdf_transparent.h" +#ifdef __DPDU__ +#include "bsdf_ward.h" +#endif +#include "bsdf_westin.h" + +CCL_NAMESPACE_BEGIN + +__device int svm_bsdf_sample(const ShaderData *sd, float randu, float randv, float3 *eval, float3 *omega_in, differential3 *domega_in, float *pdf) +{ + int label; + + switch(sd->svm_closure) { + case CLOSURE_BSDF_DIFFUSE_ID: + label = bsdf_diffuse_sample(sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); + break; + case CLOSURE_BSDF_TRANSLUCENT_ID: + label = bsdf_translucent_sample(sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); + break; + case CLOSURE_BSDF_REFLECTION_ID: + label = bsdf_reflection_sample(sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); + break; + case CLOSURE_BSDF_REFRACTION_ID: + label = bsdf_refraction_sample(sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); + break; + case CLOSURE_BSDF_TRANSPARENT_ID: + label = bsdf_transparent_sample(sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); + break; + case CLOSURE_BSDF_MICROFACET_GGX_ID: + case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID: + label = bsdf_microfacet_ggx_sample(sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); + break; + case CLOSURE_BSDF_MICROFACET_BECKMANN_ID: + case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID: + label = bsdf_microfacet_beckmann_sample(sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); + break; +#ifdef __DPDU__ + case CLOSURE_BSDF_WARD_ID: + label = bsdf_ward_sample(sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); + break; +#endif + case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID: + label = bsdf_ashikhmin_velvet_sample(sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); + break; + case CLOSURE_BSDF_WESTIN_BACKSCATTER_ID: + label = bsdf_westin_backscatter_sample(sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); + break; + case CLOSURE_BSDF_WESTIN_SHEEN_ID: + label = bsdf_westin_sheen_sample(sd, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); + break; + default: + label = LABEL_NONE; + break; + } + + *eval *= sd->svm_closure_weight; + + return label; +} + +__device float3 svm_bsdf_eval(const ShaderData *sd, const float3 omega_in, float *pdf) +{ + float3 eval; + + if(dot(sd->Ng, omega_in) >= 0.0f) { + switch(sd->svm_closure) { + case CLOSURE_BSDF_DIFFUSE_ID: + eval = bsdf_diffuse_eval_reflect(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_TRANSLUCENT_ID: + eval = bsdf_translucent_eval_reflect(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_REFLECTION_ID: + eval = bsdf_reflection_eval_reflect(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_REFRACTION_ID: + eval = bsdf_refraction_eval_reflect(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_TRANSPARENT_ID: + eval = bsdf_transparent_eval_reflect(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_MICROFACET_GGX_ID: + case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID: + eval = bsdf_microfacet_ggx_eval_reflect(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_MICROFACET_BECKMANN_ID: + case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID: + eval = bsdf_microfacet_beckmann_eval_reflect(sd, sd->I, omega_in, pdf); + break; +#ifdef __DPDU__ + case CLOSURE_BSDF_WARD_ID: + eval = bsdf_ward_eval_reflect(sd, sd->I, omega_in, pdf); + break; +#endif + case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID: + eval = bsdf_ashikhmin_velvet_eval_reflect(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_WESTIN_BACKSCATTER_ID: + eval = bsdf_westin_backscatter_eval_reflect(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_WESTIN_SHEEN_ID: + eval = bsdf_westin_sheen_eval_reflect(sd, sd->I, omega_in, pdf); + break; + default: + eval = make_float3(0.0f, 0.0f, 0.0f); + break; + } + } + else { + switch(sd->svm_closure) { + case CLOSURE_BSDF_DIFFUSE_ID: + eval = bsdf_diffuse_eval_transmit(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_TRANSLUCENT_ID: + eval = bsdf_translucent_eval_transmit(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_REFLECTION_ID: + eval = bsdf_reflection_eval_transmit(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_REFRACTION_ID: + eval = bsdf_refraction_eval_transmit(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_TRANSPARENT_ID: + eval = bsdf_transparent_eval_transmit(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_MICROFACET_GGX_ID: + case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID: + eval = bsdf_microfacet_ggx_eval_transmit(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_MICROFACET_BECKMANN_ID: + case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID: + eval = bsdf_microfacet_beckmann_eval_transmit(sd, sd->I, omega_in, pdf); + break; +#ifdef __DPDU__ + case CLOSURE_BSDF_WARD_ID: + eval = bsdf_ward_eval_transmit(sd, sd->I, omega_in, pdf); + break; +#endif + case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID: + eval = bsdf_ashikhmin_velvet_eval_transmit(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_WESTIN_BACKSCATTER_ID: + eval = bsdf_westin_backscatter_eval_transmit(sd, sd->I, omega_in, pdf); + break; + case CLOSURE_BSDF_WESTIN_SHEEN_ID: + eval = bsdf_westin_sheen_eval_transmit(sd, sd->I, omega_in, pdf); + break; + default: + eval = make_float3(0.0f, 0.0f, 0.0f); + break; + } + } + + eval *= sd->svm_closure_weight; + + return eval; +} + +__device void svm_bsdf_blur(ShaderData *sd, float roughness) +{ + switch(sd->svm_closure) { + case CLOSURE_BSDF_DIFFUSE_ID: + bsdf_diffuse_blur(sd, roughness); + break; + case CLOSURE_BSDF_TRANSLUCENT_ID: + bsdf_translucent_blur(sd, roughness); + break; + case CLOSURE_BSDF_REFLECTION_ID: + bsdf_reflection_blur(sd, roughness); + break; + case CLOSURE_BSDF_REFRACTION_ID: + bsdf_refraction_blur(sd, roughness); + break; + case CLOSURE_BSDF_TRANSPARENT_ID: + bsdf_transparent_blur(sd, roughness); + break; + case CLOSURE_BSDF_MICROFACET_GGX_ID: + case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID: + bsdf_microfacet_ggx_blur(sd, roughness); + break; + case CLOSURE_BSDF_MICROFACET_BECKMANN_ID: + case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID: + bsdf_microfacet_beckmann_blur(sd, roughness); + break; +#ifdef __DPDU__ + case CLOSURE_BSDF_WARD_ID: + bsdf_ward_blur(sd, roughness); + break; +#endif + case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID: + bsdf_ashikhmin_velvet_blur(sd, roughness); + break; + case CLOSURE_BSDF_WESTIN_BACKSCATTER_ID: + bsdf_westin_backscatter_blur(sd, roughness); + break; + case CLOSURE_BSDF_WESTIN_SHEEN_ID: + bsdf_westin_sheen_blur(sd, roughness); + break; + default: + break; + } +} + +CCL_NAMESPACE_END + |