1 /* Emacs style mode select -*- C++ -*- 2 *----------------------------------------------------------------------------- 3 * 4 * 5 * PrBoom: a Doom port merged with LxDoom and LSDLDoom 6 * based on BOOM, a modified and improved DOOM engine 7 * Copyright (C) 1999 by 8 * id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman 9 * Copyright (C) 1999-2000 by 10 * Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze 11 * Copyright 2005, 2006 by 12 * Florian Schulze, Colin Phipps, Neil Stevens, Andrey Budko 13 * 14 * This program is free software; you can redistribute it and/or 15 * modify it under the terms of the GNU General Public License 16 * as published by the Free Software Foundation; either version 2 17 * of the License, or (at your option) any later version. 18 * 19 * This program is distributed in the hope that it will be useful, 20 * but WITHOUT ANY WARRANTY; without even the implied warranty of 21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 22 * GNU General Public License for more details. 23 * 24 * You should have received a copy of the GNU General Public License 25 * along with this program; if not, write to the Free Software 26 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 27 * 02111-1307, USA. 28 * 29 * DESCRIPTION: 30 * Sky rendering. 31 * 32 *-----------------------------------------------------------------------------*/ 33 34 #ifndef __R_SKY__ 35 #define __R_SKY__ 36 37 #include "m_fixed.h" 38 39 /* SKY, store the number for name. */ 40 #define SKYFLATNAME "F_SKY1" 41 42 /* The sky map is 256*128*4 maps. */ 43 #define ANGLETOSKYSHIFT 22 44 45 extern int skytexture; 46 extern int skytexturemid; 47 48 // Sky stretching (see https://zdoom.org/wiki/Sky_stretching ) 49 #define SKYSTRETCH_HEIGHT 228 50 extern dbool r_stretchsky; // user option 51 extern dbool skystretch; 52 53 54 55 /* Called whenever the view size changes. */ 56 void R_InitSkyMap(void); 57 58 #endif 59