quadrilateralcowboy/renderer/Model_md3.h
2020-06-12 14:06:25 -07:00

146 lines
4 KiB
C

/*
===========================================================================
Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).
Doom 3 Source Code 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.
Doom 3 Source Code 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 Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#ifndef __MODEL_MD3_H__
#define __MODEL_MD3_H__
/*
========================================================================
.MD3 triangle model file format
Private structures used by the MD3 loader.
========================================================================
*/
#define MD3_IDENT (('3'<<24)+('P'<<16)+('D'<<8)+'I')
#define MD3_VERSION 15
// surface geometry should not exceed these limits
#define SHADER_MAX_VERTEXES 1000
#define SHADER_MAX_INDEXES (6*SHADER_MAX_VERTEXES)
// limits
#define MD3_MAX_LODS 4
#define MD3_MAX_TRIANGLES 8192 // per surface
#define MD3_MAX_VERTS 4096 // per surface
#define MD3_MAX_SHADERS 256 // per surface
#define MD3_MAX_FRAMES 1024 // per model
#define MD3_MAX_SURFACES 32 // per model
#define MD3_MAX_TAGS 16 // per frame
#define MAX_MD3PATH 64 // from quake3
// vertex scales
#define MD3_XYZ_SCALE (1.0/64)
typedef struct md3Frame_s {
idVec3 bounds[2];
idVec3 localOrigin;
float radius;
char name[16];
} md3Frame_t;
typedef struct md3Tag_s {
char name[MAX_MD3PATH]; // tag name
idVec3 origin;
idVec3 axis[3];
} md3Tag_t;
/*
** md3Surface_t
**
** CHUNK SIZE
** header sizeof( md3Surface_t )
** shaders sizeof( md3Shader_t ) * numShaders
** triangles[0] sizeof( md3Triangle_t ) * numTriangles
** st sizeof( md3St_t ) * numVerts
** XyzNormals sizeof( md3XyzNormal_t ) * numVerts * numFrames
*/
typedef struct md3Surface_s {
int ident; //
char name[MAX_MD3PATH]; // polyset name
int flags;
int numFrames; // all surfaces in a model should have the same
int numShaders; // all surfaces in a model should have the same
int numVerts;
int numTriangles;
int ofsTriangles;
int ofsShaders; // offset from start of md3Surface_t
int ofsSt; // texture coords are common for all frames
int ofsXyzNormals; // numVerts * numFrames
int ofsEnd; // next surface follows
} md3Surface_t;
typedef struct {
char name[MAX_MD3PATH];
const idMaterial * shader; // for in-game use
} md3Shader_t;
typedef struct {
int indexes[3];
} md3Triangle_t;
typedef struct {
float st[2];
} md3St_t;
typedef struct {
short xyz[3];
short normal;
} md3XyzNormal_t;
typedef struct md3Header_s {
int ident;
int version;
char name[MAX_MD3PATH]; // model name
int flags;
int numFrames;
int numTags;
int numSurfaces;
int numSkins;
int ofsFrames; // offset for first frame
int ofsTags; // numFrames * numTags
int ofsSurfaces; // first surface, others follow
int ofsEnd; // end of file
} md3Header_t;
#endif /* !__MODEL_MD3_H__ */