lighting.h

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/*
Copyright (C) 1997-2001 Id Software, Inc.

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.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

#pragma once

#include "common/shared.h"
#include "common/bspfile.h"
#include "common/polylib.h"

#define MAX_PATCHES 65000           /* larger will cause 32 bit overflows */

typedef struct patch_s {
    dBspSurface_t*  face;
    winding_t*      winding;

    vec3_t          origin;
    vec3_t          normal;

    float           area;
    vec3_t          light;      
    struct patch_s* next;       
} patch_t;

extern patch_t* face_patches[MAX_MAP_FACES];
extern vec3_t face_offset[MAX_MAP_FACES];

void BuildFacelights(unsigned int facenum);
void FinalLightFace(unsigned int facenum);
void ExportLightmaps(const char* bspFileName);
void BuildLights(void);

void BuildPatches(void);
void SubdividePatches(void);
void CalcTextureReflectivity(void);
void LightWorld(void);
void BuildVertexNormals(void);
void FreePatches(void);