qzdoom/src/r_sky.h

57 lines
1.7 KiB
C

//-----------------------------------------------------------------------------
//
// Copyright 1993-1996 id Software
// Copyright 1999-2016 Randy Heit
// Copyright 2002-2016 Christoph Oelckers
//
// 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 3 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.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see http://www.gnu.org/licenses/
//
//-----------------------------------------------------------------------------
//
// DESCRIPTION:
// Sky rendering.
//
//-----------------------------------------------------------------------------
#ifndef __R_SKY_H__
#define __R_SKY_H__
#include "textures/textures.h"
extern FTextureID skyflatnum;
extern fixed_t sky1cyl, sky2cyl;
extern FTextureID sky1texture, sky2texture;
extern double sky1pos, sky2pos;
extern float hw_sky1pos, hw_sky2pos;
extern double skytexturemid;
extern float skyiscale;
extern double skyscale;
extern bool skystretch;
extern int freelookviewheight;
#define SKYSTRETCH_HEIGHT 228
// Called whenever the sky changes.
void R_InitSkyMap ();
void R_UpdateSky (uint64_t mstime);
// 57 world units roughly represent one sky texel for the glTranslate call.
enum
{
skyoffsetfactor = 57
};
#endif //__R_SKY_H__