ref: 3b7f8c554fe6772bab1e6a0b0d341b1a6b5d72b8
dir: /src/doom/r_sky.c/
// // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 2005-2014 Simon Howard // // This program 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 2 // of the License, or (at your option) any later version. // // This program 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. // // DESCRIPTION: // Sky rendering. The DOOM sky is a texture map like any // wall, wrapping around. A 1024 columns equal 360 degrees. // The default sky map is 256 columns and repeats 4 times // on a 320 screen? // // // Needed for FRACUNIT. #include "m_fixed.h" // Needed for Flat retrieval. #include "r_data.h" #include "r_sky.h" // // sky mapping // int skyflatnum; int skytexture; int skytexturemid; // // R_InitSkyMap // Called whenever the view size changes. // void R_InitSkyMap (void) { // skyflatnum = R_FlatNumForName ( SKYFLATNAME ); skytexturemid = SCREENHEIGHT/2*FRACUNIT; }