ssol_material_c.h (2689B)
1 /* Copyright (C) 2018-2026 |Meso|Star> (contact@meso-star.com) 2 * Copyright (C) 2016, 2018 CNRS 3 * 4 * This program is free software: you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation, either version 3 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program. If not, see <http://www.gnu.org/licenses/>. */ 16 17 #ifndef SSOL_MATERIAL_C_H 18 #define SSOL_MATERIAL_C_H 19 20 #include <rsys/ref_count.h> 21 22 struct s3d_hit; 23 struct s3d_primitive; 24 struct ssf_bsdf; 25 struct ssol_device; 26 27 struct dielectric { 28 int dummy; 29 }; 30 31 struct matte { 32 ssol_shader_getter_T reflectivity; 33 }; 34 35 struct mirror { 36 ssol_shader_getter_T reflectivity; 37 ssol_shader_getter_T roughness; 38 enum ssol_microfacet_distribution distrib; 39 }; 40 41 struct thin_dielectric { 42 struct ssol_medium slab_medium; 43 double thickness; 44 }; 45 46 struct ssol_material { 47 enum ssol_material_type type; 48 49 ssol_shader_getter_T normal; 50 51 union { 52 struct dielectric dielectric; 53 struct matte matte; 54 struct mirror mirror; 55 struct thin_dielectric thin_dielectric; 56 } data; 57 58 struct ssol_medium out_medium; 59 struct ssol_medium in_medium; 60 61 struct ssol_param_buffer* buf; 62 struct ssol_device* dev; 63 ref_T ref; 64 }; 65 66 extern LOCAL_SYM void 67 surface_fragment_setup 68 (struct ssol_surface_fragment* fragment, 69 const double pos[3], 70 const double dir[3], 71 const double normal[3], 72 const struct s3d_primitive* primitive, 73 const float uv[2]); 74 75 extern LOCAL_SYM void 76 material_shade_normal 77 (const struct ssol_material* mtl, 78 const struct ssol_surface_fragment* fragment, 79 const double wavelength, 80 double N[3]); 81 82 extern LOCAL_SYM res_T 83 material_create_bsdf 84 (const struct ssol_material* mtl, 85 const struct ssol_surface_fragment* fragment, 86 const double wavelength, /* In nanometer */ 87 const struct ssol_medium* medium, /* Current medium */ 88 const int rendering, /* Is material used for rendering purposes */ 89 struct ssf_bsdf** bsdf); /* Bidirectional Scattering Distribution Function */ 90 91 extern LOCAL_SYM res_T 92 material_get_next_medium 93 (const struct ssol_material* mtl, 94 const struct ssol_medium* medium, /* Current mediu */ 95 struct ssol_medium* next_medium); 96 97 extern LOCAL_SYM int 98 media_ceq(const struct ssol_medium* a, const struct ssol_medium* b); 99 100 #endif /* SSOL_MATERIAL_C_H */ 101