/* * Copyright (C) 2021 Christopher J. Howard * * This file is part of Antkeeper source code. * * Antkeeper source code 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 3 of the License, or * (at your option) any later version. * * Antkeeper source code 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 Antkeeper source code. If not, see . */ #ifndef ANTKEEPER_BLACKBODY_HPP #define ANTKEEPER_BLACKBODY_HPP #include "utility/fundamental-types.hpp" namespace ast { /** * Calculates the color of an ideal black-body radiator, given its temperature in Kelvin. * * @param t Temperature, in Kelvin. * @return Correlated color, in linear RGB space. * * @see https://en.wikipedia.org/wiki/Planckian_locus * @see https://en.wikipedia.org/wiki/CIE_1960_color_space * @see https://google.github.io/filament/Filament.html */ double3 blackbody(double t); } // namespace ast #endif // ANTKEEPER_BLACKBODY_HPP