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146 lines
4 KiB
C
146 lines
4 KiB
C
/*
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===========================================================================
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Doom 3 GPL Source Code
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Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
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Doom 3 Source Code is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Doom 3 Source Code is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
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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.
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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.
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===========================================================================
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*/
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#ifndef __MODEL_MD3_H__
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#define __MODEL_MD3_H__
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/*
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========================================================================
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.MD3 triangle model file format
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Private structures used by the MD3 loader.
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========================================================================
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*/
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#define MD3_IDENT (('3'<<24)+('P'<<16)+('D'<<8)+'I')
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#define MD3_VERSION 15
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// surface geometry should not exceed these limits
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#define SHADER_MAX_VERTEXES 1000
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#define SHADER_MAX_INDEXES (6*SHADER_MAX_VERTEXES)
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// limits
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#define MD3_MAX_LODS 4
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#define MD3_MAX_TRIANGLES 8192 // per surface
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#define MD3_MAX_VERTS 4096 // per surface
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#define MD3_MAX_SHADERS 256 // per surface
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#define MD3_MAX_FRAMES 1024 // per model
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#define MD3_MAX_SURFACES 32 // per model
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#define MD3_MAX_TAGS 16 // per frame
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#define MAX_MD3PATH 64 // from quake3
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// vertex scales
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#define MD3_XYZ_SCALE (1.0/64)
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typedef struct md3Frame_s {
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idVec3 bounds[2];
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idVec3 localOrigin;
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float radius;
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char name[16];
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} md3Frame_t;
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typedef struct md3Tag_s {
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char name[MAX_MD3PATH]; // tag name
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idVec3 origin;
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idVec3 axis[3];
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} md3Tag_t;
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/*
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** md3Surface_t
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**
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** CHUNK SIZE
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** header sizeof( md3Surface_t )
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** shaders sizeof( md3Shader_t ) * numShaders
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** triangles[0] sizeof( md3Triangle_t ) * numTriangles
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** st sizeof( md3St_t ) * numVerts
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** XyzNormals sizeof( md3XyzNormal_t ) * numVerts * numFrames
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*/
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typedef struct md3Surface_s {
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int ident; //
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char name[MAX_MD3PATH]; // polyset name
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int flags;
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int numFrames; // all surfaces in a model should have the same
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int numShaders; // all surfaces in a model should have the same
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int numVerts;
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int numTriangles;
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int ofsTriangles;
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int ofsShaders; // offset from start of md3Surface_t
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int ofsSt; // texture coords are common for all frames
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int ofsXyzNormals; // numVerts * numFrames
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int ofsEnd; // next surface follows
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} md3Surface_t;
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typedef struct {
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char name[MAX_MD3PATH];
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const idMaterial * shader; // for in-game use
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} md3Shader_t;
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typedef struct {
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int indexes[3];
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} md3Triangle_t;
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typedef struct {
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float st[2];
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} md3St_t;
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typedef struct {
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short xyz[3];
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short normal;
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} md3XyzNormal_t;
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typedef struct md3Header_s {
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int ident;
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int version;
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char name[MAX_MD3PATH]; // model name
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int flags;
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int numFrames;
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int numTags;
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int numSurfaces;
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int numSkins;
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int ofsFrames; // offset for first frame
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int ofsTags; // numFrames * numTags
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int ofsSurfaces; // first surface, others follow
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int ofsEnd; // end of file
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} md3Header_t;
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#endif /* !__MODEL_MD3_H__ */
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