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Blender V2.61 - r43446
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svm_bsdf.h
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00001 /* 00002 * Copyright 2011, Blender Foundation. 00003 * 00004 * This program is free software; you can redistribute it and/or 00005 * modify it under the terms of the GNU General Public License 00006 * as published by the Free Software Foundation; either version 2 00007 * of the License, or (at your option) any later version. 00008 * 00009 * This program is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 * GNU General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU General Public License 00015 * along with this program; if not, write to the Free Software Foundation, 00016 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 00017 */ 00018 00019 #include "bsdf_ashikhmin_velvet.h" 00020 #include "bsdf_diffuse.h" 00021 #include "bsdf_oren_nayar.h" 00022 #include "bsdf_microfacet.h" 00023 #include "bsdf_reflection.h" 00024 #include "bsdf_refraction.h" 00025 #include "bsdf_transparent.h" 00026 #ifdef __DPDU__ 00027 #include "bsdf_ward.h" 00028 #endif 00029 #include "bsdf_westin.h" 00030 00031 CCL_NAMESPACE_BEGIN 00032 00033 __device int svm_bsdf_sample(const ShaderData *sd, const ShaderClosure *sc, float randu, float randv, float3 *eval, float3 *omega_in, differential3 *domega_in, float *pdf) 00034 { 00035 int label; 00036 00037 switch(sc->type) { 00038 case CLOSURE_BSDF_DIFFUSE_ID: 00039 label = bsdf_diffuse_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00040 break; 00041 #ifdef __SVM__ 00042 case CLOSURE_BSDF_OREN_NAYAR_ID: 00043 label = bsdf_oren_nayar_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00044 break; 00045 case CLOSURE_BSDF_TRANSLUCENT_ID: 00046 label = bsdf_translucent_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00047 break; 00048 case CLOSURE_BSDF_REFLECTION_ID: 00049 label = bsdf_reflection_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00050 break; 00051 case CLOSURE_BSDF_REFRACTION_ID: 00052 label = bsdf_refraction_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00053 break; 00054 case CLOSURE_BSDF_TRANSPARENT_ID: 00055 label = bsdf_transparent_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00056 break; 00057 case CLOSURE_BSDF_MICROFACET_GGX_ID: 00058 case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID: 00059 label = bsdf_microfacet_ggx_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00060 break; 00061 case CLOSURE_BSDF_MICROFACET_BECKMANN_ID: 00062 case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID: 00063 label = bsdf_microfacet_beckmann_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00064 break; 00065 #ifdef __DPDU__ 00066 case CLOSURE_BSDF_WARD_ID: 00067 label = bsdf_ward_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00068 break; 00069 #endif 00070 case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID: 00071 label = bsdf_ashikhmin_velvet_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00072 break; 00073 case CLOSURE_BSDF_WESTIN_BACKSCATTER_ID: 00074 label = bsdf_westin_backscatter_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00075 break; 00076 case CLOSURE_BSDF_WESTIN_SHEEN_ID: 00077 label = bsdf_westin_sheen_sample(sd, sc, randu, randv, eval, omega_in, &domega_in->dx, &domega_in->dy, pdf); 00078 break; 00079 #endif 00080 default: 00081 label = LABEL_NONE; 00082 break; 00083 } 00084 00085 return label; 00086 } 00087 00088 __device float3 svm_bsdf_eval(const ShaderData *sd, const ShaderClosure *sc, const float3 omega_in, float *pdf) 00089 { 00090 float3 eval; 00091 00092 if(dot(sd->Ng, omega_in) >= 0.0f) { 00093 switch(sc->type) { 00094 case CLOSURE_BSDF_DIFFUSE_ID: 00095 eval = bsdf_diffuse_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00096 break; 00097 #ifdef __SVM__ 00098 case CLOSURE_BSDF_OREN_NAYAR_ID: 00099 eval = bsdf_oren_nayar_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00100 break; 00101 case CLOSURE_BSDF_TRANSLUCENT_ID: 00102 eval = bsdf_translucent_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00103 break; 00104 case CLOSURE_BSDF_REFLECTION_ID: 00105 eval = bsdf_reflection_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00106 break; 00107 case CLOSURE_BSDF_REFRACTION_ID: 00108 eval = bsdf_refraction_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00109 break; 00110 case CLOSURE_BSDF_TRANSPARENT_ID: 00111 eval = bsdf_transparent_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00112 break; 00113 case CLOSURE_BSDF_MICROFACET_GGX_ID: 00114 case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID: 00115 eval = bsdf_microfacet_ggx_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00116 break; 00117 case CLOSURE_BSDF_MICROFACET_BECKMANN_ID: 00118 case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID: 00119 eval = bsdf_microfacet_beckmann_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00120 break; 00121 #ifdef __DPDU__ 00122 case CLOSURE_BSDF_WARD_ID: 00123 eval = bsdf_ward_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00124 break; 00125 #endif 00126 case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID: 00127 eval = bsdf_ashikhmin_velvet_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00128 break; 00129 case CLOSURE_BSDF_WESTIN_BACKSCATTER_ID: 00130 eval = bsdf_westin_backscatter_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00131 break; 00132 case CLOSURE_BSDF_WESTIN_SHEEN_ID: 00133 eval = bsdf_westin_sheen_eval_reflect(sd, sc, sd->I, omega_in, pdf); 00134 break; 00135 #endif 00136 default: 00137 eval = make_float3(0.0f, 0.0f, 0.0f); 00138 break; 00139 } 00140 } 00141 else { 00142 switch(sc->type) { 00143 case CLOSURE_BSDF_DIFFUSE_ID: 00144 eval = bsdf_diffuse_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00145 break; 00146 #ifdef __SVM__ 00147 case CLOSURE_BSDF_OREN_NAYAR_ID: 00148 eval = bsdf_oren_nayar_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00149 break; 00150 case CLOSURE_BSDF_TRANSLUCENT_ID: 00151 eval = bsdf_translucent_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00152 break; 00153 case CLOSURE_BSDF_REFLECTION_ID: 00154 eval = bsdf_reflection_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00155 break; 00156 case CLOSURE_BSDF_REFRACTION_ID: 00157 eval = bsdf_refraction_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00158 break; 00159 case CLOSURE_BSDF_TRANSPARENT_ID: 00160 eval = bsdf_transparent_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00161 break; 00162 case CLOSURE_BSDF_MICROFACET_GGX_ID: 00163 case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID: 00164 eval = bsdf_microfacet_ggx_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00165 break; 00166 case CLOSURE_BSDF_MICROFACET_BECKMANN_ID: 00167 case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID: 00168 eval = bsdf_microfacet_beckmann_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00169 break; 00170 #ifdef __DPDU__ 00171 case CLOSURE_BSDF_WARD_ID: 00172 eval = bsdf_ward_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00173 break; 00174 #endif 00175 case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID: 00176 eval = bsdf_ashikhmin_velvet_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00177 break; 00178 case CLOSURE_BSDF_WESTIN_BACKSCATTER_ID: 00179 eval = bsdf_westin_backscatter_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00180 break; 00181 case CLOSURE_BSDF_WESTIN_SHEEN_ID: 00182 eval = bsdf_westin_sheen_eval_transmit(sd, sc, sd->I, omega_in, pdf); 00183 break; 00184 #endif 00185 default: 00186 eval = make_float3(0.0f, 0.0f, 0.0f); 00187 break; 00188 } 00189 } 00190 00191 return eval; 00192 } 00193 00194 __device void svm_bsdf_blur(ShaderClosure *sc, float roughness) 00195 { 00196 switch(sc->type) { 00197 case CLOSURE_BSDF_DIFFUSE_ID: 00198 bsdf_diffuse_blur(sc, roughness); 00199 break; 00200 #ifdef __SVM__ 00201 case CLOSURE_BSDF_OREN_NAYAR_ID: 00202 bsdf_oren_nayar_blur(sc, roughness); 00203 break; 00204 case CLOSURE_BSDF_TRANSLUCENT_ID: 00205 bsdf_translucent_blur(sc, roughness); 00206 break; 00207 case CLOSURE_BSDF_REFLECTION_ID: 00208 bsdf_reflection_blur(sc, roughness); 00209 break; 00210 case CLOSURE_BSDF_REFRACTION_ID: 00211 bsdf_refraction_blur(sc, roughness); 00212 break; 00213 case CLOSURE_BSDF_TRANSPARENT_ID: 00214 bsdf_transparent_blur(sc, roughness); 00215 break; 00216 case CLOSURE_BSDF_MICROFACET_GGX_ID: 00217 case CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID: 00218 bsdf_microfacet_ggx_blur(sc, roughness); 00219 break; 00220 case CLOSURE_BSDF_MICROFACET_BECKMANN_ID: 00221 case CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID: 00222 bsdf_microfacet_beckmann_blur(sc, roughness); 00223 break; 00224 #ifdef __DPDU__ 00225 case CLOSURE_BSDF_WARD_ID: 00226 bsdf_ward_blur(sc, roughness); 00227 break; 00228 #endif 00229 case CLOSURE_BSDF_ASHIKHMIN_VELVET_ID: 00230 bsdf_ashikhmin_velvet_blur(sc, roughness); 00231 break; 00232 case CLOSURE_BSDF_WESTIN_BACKSCATTER_ID: 00233 bsdf_westin_backscatter_blur(sc, roughness); 00234 break; 00235 case CLOSURE_BSDF_WESTIN_SHEEN_ID: 00236 bsdf_westin_sheen_blur(sc, roughness); 00237 break; 00238 #endif 00239 default: 00240 break; 00241 } 00242 } 00243 00244 CCL_NAMESPACE_END 00245