star-sf

Set of surface and volume scattering functions
git clone git://git.meso-star.fr/star-sf.git
Log | Files | Refs | README | LICENSE

ssf_fresnel_c.h (1521B)


      1 /* Copyright (C) 2016-2018, 2021-2025 |Méso|Star> (contact@meso-star.com)
      2  *
      3  * This program is free software: you can redistribute it and/or modify
      4  * it under the terms of the GNU General Public License as published by
      5  * the Free Software Foundation, either version 3 of the License, or
      6  * (at your option) any later version.
      7  *
      8  * This program is distributed in the hope that it will be useful,
      9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     11  * GNU General Public License for more details.
     12  *
     13  * You should have received a copy of the GNU General Public License
     14  * along with this program. If not, see <http://www.gnu.org/licenses/>. */
     15 
     16 #ifndef SSF_FRESNEL_C_H
     17 #define SSF_FRESNEL_C_H
     18 
     19 #include "ssf.h"
     20 #include <rsys/ref_count.h>
     21 
     22 struct mem_allocator;
     23 
     24 struct ssf_fresnel {
     25   struct ssf_fresnel_type type;
     26   void* data; /* Specific internal data of the Fresnel term */
     27 
     28   /* Private data */
     29   ref_T ref;
     30   struct mem_allocator* allocator;
     31 };
     32 
     33 #define FRESNEL_TYPE_EQ(A, B)                                                  \
     34   (  (A)->init == (B)->init                                                    \
     35   && (A)->release == (B)->release                                              \
     36   && (A)->eval == (B)->eval                                                    \
     37   && (A)->sizeof_fresnel == (B)->sizeof_fresnel                                \
     38   && (A)->alignof_fresnel == (B)->alignof_fresnel)
     39 
     40 #endif /* SSF_FRESNEL_C_H */
     41