htrdr_atmosphere_sun.h (2509B)
1 /* Copyright (C) 2018-2019, 2022-2025 Centre National de la Recherche Scientifique 2 * Copyright (C) 2020-2022 Institut Mines Télécom Albi-Carmaux 3 * Copyright (C) 2022-2025 Institut Pierre-Simon Laplace 4 * Copyright (C) 2022-2025 Institut de Physique du Globe de Paris 5 * Copyright (C) 2018-2025 |Méso|Star> (contact@meso-star.com) 6 * Copyright (C) 2022-2025 Observatoire de Paris 7 * Copyright (C) 2022-2025 Université de Reims Champagne-Ardenne 8 * Copyright (C) 2022-2025 Université de Versaille Saint-Quentin 9 * Copyright (C) 2018-2019, 2022-2025 Université Paul Sabatier 10 * 11 * This program is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation, either version 3 of the License, or 14 * (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program. If not, see <http://www.gnu.org/licenses/>. */ 23 24 #ifndef HTRDR_ATMOSPHERE_SUN_H 25 #define HTRDR_ATMOSPHERE_SUN_H 26 27 #include <rsys/rsys.h> 28 29 /* Forward declaration */ 30 struct htrdr; 31 struct htrdr_atmosphere_sun; 32 struct ssp_rng; 33 34 extern LOCAL_SYM res_T 35 htrdr_atmosphere_sun_create 36 (struct htrdr* htrdr, 37 struct htrdr_atmosphere_sun** out_sun); 38 39 extern LOCAL_SYM void 40 htrdr_atmosphere_sun_ref_get 41 (struct htrdr_atmosphere_sun* sun); 42 43 extern LOCAL_SYM void 44 htrdr_atmosphere_sun_ref_put 45 (struct htrdr_atmosphere_sun* sun); 46 47 /* Setup the direction *toward* the sun "center" */ 48 extern LOCAL_SYM void 49 htrdr_atmosphere_sun_set_direction 50 (struct htrdr_atmosphere_sun* sun, 51 const double direction[3]); /* Must be normalized */ 52 53 /* Return a pdf of the sampled dir */ 54 extern LOCAL_SYM double 55 htrdr_atmosphere_sun_sample_direction 56 (struct htrdr_atmosphere_sun* sun, 57 struct ssp_rng* rng, 58 double dir[3]); 59 60 extern LOCAL_SYM double 61 htrdr_atmosphere_sun_get_solid_angle 62 (const struct htrdr_atmosphere_sun* sun); 63 64 extern LOCAL_SYM double /* W/m^2/sr/m */ 65 htrdr_atmosphere_sun_get_radiance 66 (const struct htrdr_atmosphere_sun* sun, 67 const double wavelength); 68 69 extern LOCAL_SYM int 70 htrdr_atmosphere_sun_is_dir_in_solar_cone 71 (const struct htrdr_atmosphere_sun* sun, 72 const double dir[3]); 73 74 #endif /* HTRDR_ATMOSPHERE_SUN_H */