1 /** 2 * Mandelbulber v2, a 3D fractal generator ,=#MKNmMMKmmßMNWy, 3 * ,B" ]L,,p%%%,,,§;, "K 4 * Copyright (C) 2016-21 Mandelbulber Team §R-==%w["'~5]m%=L.=~5N 5 * ,=mm=§M ]=4 yJKA"/-Nsaj "Bw,==,, 6 * This file is part of Mandelbulber. §R.r= jw",M Km .mM FW ",§=ß., ,TN 7 * ,4R =%["w[N=7]J '"5=],""]]M,w,-; T=]M 8 * Mandelbulber is free software: §R.ß~-Q/M=,=5"v"]=Qf,'§"M= =,M.§ Rz]M"Kw 9 * you can redistribute it and/or §w "xDY.J ' -"m=====WeC=\ ""%""y=%"]"" § 10 * modify it under the terms of the "§M=M =D=4"N #"%==A%p M§ M6 R' #"=~.4M 11 * GNU General Public License as §W =, ][T"]C § § '§ e===~ U !§[Z ]N 12 * published by the 4M",,Jm=,"=e~ § § j]]""N BmM"py=ßM 13 * Free Software Foundation, ]§ T,M=& 'YmMMpM9MMM%=w=,,=MT]M m§;'§, 14 * either version 3 of the License, TWw [.j"5=~N[=§%=%W,T ]R,"=="Y[LFT ]N 15 * or (at your option) TW=,-#"%=;[ =Q:["V"" ],,M.m == ]N 16 * any later version. J§"mr"] ,=,," =="""J]= M"M"]==ß" 17 * §= "=C=4 §"eM "=B:m|4"]#F,§~ 18 * Mandelbulber is distributed in "9w=,,]w em%wJ '"~" ,=,,ß" 19 * the hope that it will be useful, . "K= ,=RMMMßM""" 20 * but WITHOUT ANY WARRANTY; .''' 21 * without even the implied warranty 22 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 23 * 24 * See the GNU General Public License for more details. 25 * You should have received a copy of the GNU General Public License 26 * along with Mandelbulber. If not, see <http://www.gnu.org/licenses/>. 27 * 28 * ########################################################################### 29 * 30 * Authors: Krzysztof Marczak (buddhi1980@gmail.com) 31 * 32 * 3d projection functions - CalculateViewVector() and InvProjection3D() 33 * 34 * perspective based view vector calculation 35 */ 36 37 #ifndef MANDELBULBER2_SRC_PROJECTION_3D_HPP_ 38 #define MANDELBULBER2_SRC_PROJECTION_3D_HPP_ 39 40 #include "algebra.hpp" 41 42 namespace params 43 { 44 enum enumPerspectiveType 45 { 46 perspThreePoint = 0, 47 perspFishEye = 1, 48 perspEquirectangular = 2, 49 perspFishEyeCut = 3 50 }; 51 } 52 53 double CalcFOV(double fovDeegres, params::enumPerspectiveType perspType); 54 55 CVector3 InvProjection3D(const CVector3 &point, const CVector3 &camera, 56 const CRotationMatrix &mRotInv, params::enumPerspectiveType perspectiveType, double fov, 57 double imgWidth, double imgHeight); 58 CVector3 CalculateViewVector(CVector2<double> normalizedPoint, double fov, 59 params::enumPerspectiveType perspType, const CRotationMatrix &mRot); 60 61 #endif /* MANDELBULBER2_SRC_PROJECTION_3D_HPP_ */ 62