2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 typedef enum {ST_SYNC=0, ST_RAND } synctype_t;
31 d*_t structures are on-disk representations
32 m*_t structures are in-memory
36 typedef enum {mod_invalid, mod_brush, mod_sprite, mod_alias, mod_brushq2, mod_brushq3} modtype_t;
38 typedef struct animscene_s
40 char name[32]; // for viewthing support
43 int loop; // true or false
48 typedef struct skinframe_s
50 rtexture_t *base; // original texture without pants/shirt/glow
51 rtexture_t *pants; // pants only (in greyscale)
52 rtexture_t *shirt; // shirt only (in greyscale)
53 rtexture_t *glow; // glow only (fullbrights)
54 rtexture_t *merged; // original texture without glow
55 rtexture_t *fog; // alpha of the base texture (if not opaque)
56 rtexture_t *nmap; // normalmap (bumpmap for dot3)
57 rtexture_t *gloss; // glossmap (for dot3)
58 rtexture_t *detail; // detail texture (silly bumps for non-dot3)
64 typedef struct overridetagname_s
70 // a replacement set of tag names, per skin
71 typedef struct overridetagnameset_s
73 int num_overridetagnames;
74 overridetagname_t *data_overridetagnames;
78 #define SHADOWMESHVERTEXHASH 1024
79 typedef struct shadowmeshvertexhash_s
81 struct shadowmeshvertexhash_s *next;
83 shadowmeshvertexhash_t;
85 typedef struct shadowmesh_s
87 struct shadowmesh_s *next;
88 int numverts, maxverts;
89 int numtriangles, maxtriangles;
93 // these are NULL after Mod_ShadowMesh_Finish is performed, only used
94 // while building meshes
95 shadowmeshvertexhash_t **vertexhashtable, *vertexhashentries;
100 #include "matrixlib.h"
102 #include "model_brush.h"
103 #include "model_sprite.h"
104 #include "model_alias.h"
106 typedef struct model_alias_s
108 // LordHavoc: Q2/ZYM model support
111 // mdl/md2/md3 models are the same after loading
113 aliasmesh_t *aliasdata_meshes;
116 int aliasnum_tagframes;
117 aliastag_t *aliasdata_tags;
119 // for Zymotic models
125 float *zymdata_texcoords;
126 rtexture_t **zymdata_textures;
127 qbyte *zymdata_trizone;
128 zymbone_t *zymdata_bones;
129 unsigned int *zymdata_vertbonecounts;
130 zymvertex_t *zymdata_verts;
131 unsigned int *zymdata_renderlist;
132 float *zymdata_poses;
136 typedef struct model_sprite_s
139 mspriteframe_t *sprdata_frames;
145 typedef struct model_brush_s
148 void (*FindNonSolidLocation)(struct model_s *model, const vec3_t in, vec3_t out, vec_t radius);
149 void (*TraceBox)(struct model_s *model, struct trace_s *trace, const vec3_t boxstartmins, const vec3_t boxstartmaxs, const vec3_t boxendmins, const vec3_t boxendmaxs);
153 typedef struct model_brushq1_s
155 // true if this model is a HalfLife .bsp file
158 int firstmodelsurface, nummodelsurfaces;
160 // lightmap format, set to r_lightmaprgba when model is loaded
169 // number of visible leafs, not counting 0 (solid)
186 msurface_t *surfaces;
187 int *surfacevisframes;
188 int *surfacepvsframes;
189 msurface_t *surfacepvsnext;
190 surfmesh_t *entiremesh;
191 surfmesh_t *surfmeshes;
197 dclipnode_t *clipnodes;
202 hull_t hulls[MAX_MAP_HULLS];
214 mvertex_t *portalpoints;
219 // pvs visibility marking
220 mleaf_t *pvsviewleaf;
221 int pvsviewleafnovis;
223 mleaf_t *pvsleafchain;
225 int pvssurflistlength;
226 // these get rebuilt as the player moves around if this is the world,
227 // otherwise they are left alone (no pvs for bmodels)
228 msurface_t ***pvstexturechains;
229 msurface_t **pvstexturechainsbuffer;
230 int *pvstexturechainslength;
232 // lightmap update chains for light styles
235 int *light_stylevalue;
236 msurface_t ***light_styleupdatechains;
237 msurface_t **light_styleupdatechainsbuffer;
241 mleaf_t *(*PointInLeaf)(struct model_s *model, const float *p);
242 qbyte *(*LeafPVS)(struct model_s *model, mleaf_t *leaf);
243 void (*BuildPVSTextureChains)(struct model_s *model);
247 /* MSVC can't compile empty structs, so this is commented out for now
248 typedef struct model_brushq2_s
254 typedef struct q3mtexture_s
256 char name[Q3PATHLENGTH];
265 typedef struct q3mnode_s
268 struct q3mnode_s *parent;
269 struct mplane_s *plane;
270 struct q3mnode_s *children[2];
274 typedef struct q3mleaf_s
277 struct q3mnode_s *parent;
281 struct q3mface_s **firstleafface;
283 struct q3mbrush_s **firstleafbrush;
289 typedef struct q3mmodel_s
294 struct q3mface_s *firstface;
296 struct q3mbrush_s *firstbrush;
300 typedef struct q3mbrush_s
302 struct colbrushf_s *colbrushf;
304 struct q3mbrushside_s *firstbrushside;
305 struct q3mtexture_s *texture;
309 typedef struct q3mbrushside_s
311 struct mplane_s *plane;
312 struct q3mtexture_s *texture;
316 typedef struct q3meffect_s
318 char shadername[Q3PATHLENGTH];
319 struct q3mbrush_s *brush;
320 int unknown; // 5 or -1
324 typedef struct q3mface_s
326 struct q3mtexture_s *texture;
327 struct q3meffect_s *effect;
328 rtexture_t *lightmaptexture;
336 float *data_vertex3f;
337 float *data_texturetexcoord2f;
338 float *data_lightmaptexcoord2f;
339 float *data_svector3f;
340 float *data_tvector3f;
341 float *data_normal3f;
345 int *data_neighbor3i;
349 typedef struct model_brushq3_s
352 q3mtexture_t *data_textures;
355 mplane_t *data_planes;
358 q3mnode_t *data_nodes;
361 q3mleaf_t *data_leafs;
364 q3mbrush_t **data_leafbrushes;
367 q3mface_t **data_leaffaces;
370 q3mmodel_t *data_models;
371 // each submodel gets its own model struct so this is different for each.
372 q3mmodel_t data_thismodel;
375 q3mbrush_t *data_brushes;
378 q3mbrushside_t *data_brushsides;
381 float *data_vertex3f;
382 float *data_texturetexcoord2f;
383 float *data_lightmaptexcoord2f;
384 float *data_svector3f;
385 float *data_tvector3f;
386 float *data_normal3f;
391 int *data_neighbor3i;
394 q3meffect_t *data_effects;
397 q3mface_t *data_faces;
401 rtexture_t **data_lightmaps;
403 // voxel light data with directional shading
405 q3dlightgrid_t *data_lightgrid;
406 // size of each cell (may vary by map, typically 64 64 128)
407 float num_lightgrid_cellsize[3];
408 // 1.0 / num_lightgrid_cellsize
409 float num_lightgrid_scale[3];
410 // dimensions of the world model in lightgrid cells
411 int num_lightgrid_imins[3];
412 int num_lightgrid_imaxs[3];
413 int num_lightgrid_isize[3];
415 int num_lightgrid_dimensions[3];
416 // transform modelspace coordinates to lightgrid index
417 matrix4x4_t num_lightgrid_indexfromworld;
421 int num_pvschainlength;
422 unsigned char *data_pvschains;
424 //pvschain = model->brushq3.data_pvschains + mycluster * model->brushq3.num_pvschainlength;
425 //if (pvschain[thatcluster >> 3] & (1 << (thatcluster & 7)))
429 typedef struct model_s
431 // name and path of model, for example "progs/player.mdl"
432 char name[MAX_QPATH];
433 // model needs to be loaded if this is true
435 // set if the model is used in current map, models which are not, are purged
437 // true if this is the world model (I.E. defines what sky to use, and may contain submodels)
438 qboolean isworldmodel;
439 // CRC of the file this model was loaded from, to reload if changed
441 // mod_brush, mod_alias, mod_sprite
443 // memory pool for allocations
445 // all models use textures...
446 rtexturepool_t *texturepool;
447 // flags from the model file
449 // engine calculated flags, ones that can not be set in the file
451 // LordHavoc: if true (normally only for sprites) the model/sprite/bmodel is always rendered fullbright
453 // number of QC accessible frame(group)s in the model
455 // number of QC accessible skin(group)s in the model
457 // whether to randomize animated framegroups
459 // bounding box at angles '0 0 0'
460 vec3_t normalmins, normalmaxs;
461 // bounding box if yaw angle is not 0, but pitch and roll are
462 vec3_t yawmins, yawmaxs;
463 // bounding box if pitch or roll are used
464 vec3_t rotatedmins, rotatedmaxs;
465 // sphere radius, usable at any angles
467 // squared sphere radius for easier comparisons
469 // skin animation info
470 animscene_t *skinscenes; // [numskins]
471 // skin animation info
472 animscene_t *animscenes; // [numframes]
473 // draw the model's sky polygons (only used by brush models)
474 void(*DrawSky)(struct entity_render_s *ent);
475 // draw the model using lightmap/dlight shading
476 void(*Draw)(struct entity_render_s *ent);
477 // draw a fake shadow for the model
478 void(*DrawFakeShadow)(struct entity_render_s *ent);
479 // draw a shadow volume for the model based on light source
480 void(*DrawShadowVolume)(struct entity_render_s *ent, vec3_t relativelightorigin, float lightradius);
481 // draw the lighting on a model (through stencil)
482 void(*DrawLight)(struct entity_render_s *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz);
483 // fields belonging to each type of model
485 model_sprite_t sprite;
487 model_brushq1_t brushq1;
488 /* MSVC can't handle an empty struct, so this is commented out for now
489 model_brushq2_t brushq2;
491 model_brushq3_t brushq3;
492 // skin files can have different tags for each skin
493 overridetagnameset_t *data_overridetagnamesforskin;
497 //============================================================================
499 // this can be used for anything without a valid texture
500 extern rtexture_t *r_notexture;
501 #define NUM_DETAILTEXTURES 1
502 extern rtexture_t *mod_shared_detailtextures[NUM_DETAILTEXTURES];
503 // every texture must be in a pool...
504 extern rtexturepool_t *mod_shared_texturepool;
507 extern model_t *loadmodel;
508 extern qbyte *mod_base;
509 // sky/water subdivision
510 //extern cvar_t gl_subdivide_size;
511 // texture fullbrights
512 extern cvar_t r_fullbrights;
514 void Mod_Init (void);
515 void Mod_CheckLoaded (model_t *mod);
516 void Mod_ClearAll (void);
517 model_t *Mod_FindName (const char *name);
518 model_t *Mod_ForName (const char *name, qboolean crash, qboolean checkdisk, qboolean isworldmodel);
519 void Mod_TouchModel (const char *name);
520 void Mod_UnloadModel (model_t *mod);
522 void Mod_ClearUsed(void);
523 void Mod_PurgeUnused(void);
524 void Mod_LoadModels(void);
526 extern model_t *loadmodel;
527 extern char loadname[32]; // for hunk tags
529 int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore);
530 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles);
531 void Mod_ValidateElements(const int *elements, int numtriangles, int numverts, const char *filename, int fileline);
532 void Mod_BuildTextureVectorsAndNormals(int numverts, int numtriangles, const float *vertex, const float *texcoord, const int *elements, float *svectors, float *tvectors, float *normals);
534 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts);
535 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh);
536 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *v);
537 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, float *vert0, float *vert1, float *vert2);
538 void Mod_ShadowMesh_AddPolygon(mempool_t *mempool, shadowmesh_t *mesh, int numverts, float *verts);
539 void Mod_ShadowMesh_AddMesh(mempool_t *mempool, shadowmesh_t *mesh, float *verts, int numtris, int *elements);
540 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int initialnumtriangles);
541 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh);
542 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius);
543 void Mod_ShadowMesh_Free(shadowmesh_t *mesh);
545 int Mod_LoadSkinFrame(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture);
546 int Mod_LoadSkinFrame_Internal(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture, qbyte *skindata, int width, int height);
548 extern cvar_t r_mipskins;
550 typedef struct skinfileitem_s
552 struct skinfileitem_s *next;
553 char name[MAX_QPATH];
554 char replacement[MAX_QPATH];
558 typedef struct skinfile_s
560 struct skinfile_s *next;
561 skinfileitem_t *items;
565 skinfile_t *Mod_LoadSkinFiles(void);
566 void Mod_FreeSkinFiles(skinfile_t *skinfile);
567 int Mod_CountSkinFiles(skinfile_t *skinfile);