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
147 // true if this model is a HalfLife .bsp file
149 // string of entity definitions (.map format)
151 // number of submodels in this map (just used by server to know how many
152 // submodels to load)
155 int (*SuperContentsFromNativeContents)(struct model_s *model, int nativecontents);
156 int (*NativeContentsFromSuperContents)(struct model_s *model, int supercontents);
157 qbyte *(*GetPVS)(struct model_s *model, const vec3_t p);
158 int (*FatPVS)(struct model_s *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbufferlength);
159 int (*BoxTouchingPVS)(struct model_s *model, const qbyte *pvs, const vec3_t mins, const vec3_t maxs);
160 void (*LightPoint)(struct model_s *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal);
161 void (*FindNonSolidLocation)(struct model_s *model, const vec3_t in, vec3_t out, vec_t radius);
162 // these are actually only found on brushq1, but NULL is handled gracefully
163 void (*AmbientSoundLevelsForPoint)(struct model_s *model, const vec3_t p, qbyte *out, int outsize);
164 void (*RoundUpToHullSize)(struct model_s *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs);
168 typedef struct model_brushq1_s
170 int firstmodelsurface, nummodelsurfaces;
172 // lightmap format, set to r_lightmaprgba when model is loaded
180 // number of actual leafs (including 0 which is solid)
182 // visible leafs, not counting 0 (solid)
199 msurface_t *surfaces;
200 int *surfacevisframes;
201 int *surfacepvsframes;
202 msurface_t *surfacepvsnext;
203 surfmesh_t *entiremesh;
209 dclipnode_t *clipnodes;
214 hull_t hulls[MAX_MAP_HULLS];
219 int num_compressedpvs;
220 qbyte *data_compressedpvs;
221 qbyte *data_decompressedpvs;
230 mvertex_t *portalpoints;
235 // pvs visibility marking
236 mleaf_t *pvsviewleaf;
237 int pvsviewleafnovis;
239 mleaf_t *pvsleafchain;
241 int pvssurflistlength;
242 // these get rebuilt as the player moves around if this is the world,
243 // otherwise they are left alone (no pvs for bmodels)
244 msurface_t ***pvstexturechains;
245 msurface_t **pvstexturechainsbuffer;
246 int *pvstexturechainslength;
248 // lightmap update chains for light styles
251 int *light_stylevalue;
252 msurface_t ***light_styleupdatechains;
253 msurface_t **light_styleupdatechainsbuffer;
257 mleaf_t *(*PointInLeaf)(struct model_s *model, const float *p);
258 void (*BuildPVSTextureChains)(struct model_s *model);
262 /* MSVC can't compile empty structs, so this is commented out for now
263 typedef struct model_brushq2_s
269 #define Q3MTEXTURERENDERFLAGS_NODRAW 1
270 #define Q3MTEXTURERENDERFLAGS_SKY 2
272 typedef struct q3mtexture_s
274 char name[Q3PATHLENGTH];
285 typedef struct q3mnode_s
287 //this part shared between node and leaf
289 struct q3mnode_s *parent;
292 // this part unique to nodes
293 struct mplane_s *plane;
294 struct q3mnode_s *children[2];
298 typedef struct q3mleaf_s
300 //this part shared between node and leaf
302 struct q3mnode_s *parent;
305 // this part unique to leafs
309 struct q3mface_s **firstleafface;
311 struct q3mbrush_s **firstleafbrush;
315 typedef struct q3mmodel_s
320 struct q3mface_s *firstface;
322 struct q3mbrush_s *firstbrush;
326 typedef struct q3mbrush_s
328 struct colbrushf_s *colbrushf;
330 struct q3mbrushside_s *firstbrushside;
331 struct q3mtexture_s *texture;
335 typedef struct q3mbrushside_s
337 struct mplane_s *plane;
338 struct q3mtexture_s *texture;
342 typedef struct q3meffect_s
344 char shadername[Q3PATHLENGTH];
345 struct q3mbrush_s *brush;
346 int unknown; // 5 or -1
350 typedef struct q3mface_s
352 struct q3mtexture_s *texture;
353 struct q3meffect_s *effect;
354 rtexture_t *lightmaptexture;
355 int collisions; // performs per triangle collisions on this surface
356 int collisionmarkframe; // don't collide twice in one trace
361 // used for processing
363 // (world only) visframe == r_framecount means it is visible this frame
365 // bounding box for culling
371 float *data_vertex3f;
372 float *data_texcoordtexture2f;
373 float *data_texcoordlightmap2f;
374 float *data_svector3f;
375 float *data_tvector3f;
376 float *data_normal3f;
379 int *data_neighbor3i;
383 typedef struct model_brushq3_s
385 // if non-zero this is a submodel
386 // (this is the number of the submodel, an index into data_models)
390 q3mtexture_t *data_textures;
393 mplane_t *data_planes;
396 q3mnode_t *data_nodes;
399 q3mleaf_t *data_leafs;
402 q3mbrush_t **data_leafbrushes;
405 q3mface_t **data_leaffaces;
408 q3mmodel_t *data_models;
409 // each submodel gets its own model struct so this is different for each.
410 q3mmodel_t *data_thismodel;
413 q3mbrush_t *data_brushes;
416 q3mbrushside_t *data_brushsides;
419 float *data_vertex3f;
420 float *data_texcoordtexture2f;
421 float *data_texcoordlightmap2f;
422 float *data_svector3f;
423 float *data_tvector3f;
424 float *data_normal3f;
429 int *data_neighbor3i;
432 q3meffect_t *data_effects;
435 q3mface_t *data_faces;
439 rtexture_t **data_lightmaps;
441 // voxel light data with directional shading
443 q3dlightgrid_t *data_lightgrid;
444 // size of each cell (may vary by map, typically 64 64 128)
445 float num_lightgrid_cellsize[3];
446 // 1.0 / num_lightgrid_cellsize
447 float num_lightgrid_scale[3];
448 // dimensions of the world model in lightgrid cells
449 int num_lightgrid_imins[3];
450 int num_lightgrid_imaxs[3];
451 int num_lightgrid_isize[3];
453 int num_lightgrid_dimensions[3];
454 // transform modelspace coordinates to lightgrid index
455 matrix4x4_t num_lightgrid_indexfromworld;
459 int num_pvschainlength;
460 unsigned char *data_pvschains;
462 //pvschain = model->brushq3.data_pvschains + mycluster * model->brushq3.num_pvschainlength;
463 //if (pvschain[thatcluster >> 3] & (1 << (thatcluster & 7)))
467 typedef struct model_s
469 // name and path of model, for example "progs/player.mdl"
470 char name[MAX_QPATH];
471 // model needs to be loaded if this is true
473 // set if the model is used in current map, models which are not, are purged
475 // true if this is the world model (I.E. defines what sky to use, and may contain submodels)
476 qboolean isworldmodel;
477 // CRC of the file this model was loaded from, to reload if changed
479 // mod_brush, mod_alias, mod_sprite
481 // memory pool for allocations
483 // all models use textures...
484 rtexturepool_t *texturepool;
485 // flags from the model file
487 // engine calculated flags, ones that can not be set in the file
489 // LordHavoc: if true (normally only for sprites) the model/sprite/bmodel is always rendered fullbright
491 // number of QC accessible frame(group)s in the model
493 // number of QC accessible skin(group)s in the model
495 // whether to randomize animated framegroups
497 // bounding box at angles '0 0 0'
498 vec3_t normalmins, normalmaxs;
499 // bounding box if yaw angle is not 0, but pitch and roll are
500 vec3_t yawmins, yawmaxs;
501 // bounding box if pitch or roll are used
502 vec3_t rotatedmins, rotatedmaxs;
503 // sphere radius, usable at any angles
505 // squared sphere radius for easier comparisons
507 // skin animation info
508 animscene_t *skinscenes; // [numskins]
509 // skin animation info
510 animscene_t *animscenes; // [numframes]
511 // draw the model's sky polygons (only used by brush models)
512 void(*DrawSky)(struct entity_render_s *ent);
513 // draw the model using lightmap/dlight shading
514 void(*Draw)(struct entity_render_s *ent);
515 // draw a shadow volume for the model based on light source
516 void(*DrawShadowVolume)(struct entity_render_s *ent, vec3_t relativelightorigin, float lightradius);
517 // draw the lighting on a model (through stencil)
518 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);
519 // trace a box against this model
520 void (*TraceBox)(struct model_s *model, int frame, struct trace_s *trace, const vec3_t boxstartmins, const vec3_t boxstartmaxs, const vec3_t boxendmins, const vec3_t boxendmaxs, int hitsupercontentsmask);
521 // fields belonging to each type of model
523 model_sprite_t sprite;
525 model_brushq1_t brushq1;
526 /* MSVC can't handle an empty struct, so this is commented out for now
527 model_brushq2_t brushq2;
529 model_brushq3_t brushq3;
530 // skin files can have different tags for each skin
531 overridetagnameset_t *data_overridetagnamesforskin;
532 // flags this model for offseting sounds to the model center (used by brush models)
537 //============================================================================
539 // this can be used for anything without a valid texture
540 extern rtexture_t *r_notexture;
541 #define NUM_DETAILTEXTURES 1
542 extern rtexture_t *mod_shared_detailtextures[NUM_DETAILTEXTURES];
543 // every texture must be in a pool...
544 extern rtexturepool_t *mod_shared_texturepool;
546 extern rtexture_t *mod_shared_distorttexture[64];
549 extern model_t *loadmodel;
550 extern qbyte *mod_base;
551 // sky/water subdivision
552 //extern cvar_t gl_subdivide_size;
553 // texture fullbrights
554 extern cvar_t r_fullbrights;
556 void Mod_Init (void);
557 void Mod_CheckLoaded (model_t *mod);
558 void Mod_ClearAll (void);
559 model_t *Mod_FindName (const char *name);
560 model_t *Mod_ForName (const char *name, qboolean crash, qboolean checkdisk, qboolean isworldmodel);
561 void Mod_TouchModel (const char *name);
562 void Mod_UnloadModel (model_t *mod);
564 void Mod_ClearUsed(void);
565 void Mod_PurgeUnused(void);
566 void Mod_LoadModels(void);
568 extern model_t *loadmodel;
569 extern char loadname[32]; // for hunk tags
571 int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore);
572 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles);
573 void Mod_ValidateElements(const int *elements, int numtriangles, int numverts, const char *filename, int fileline);
574 void Mod_BuildTextureVectorsAndNormals(int numverts, int numtriangles, const float *vertex, const float *texcoord, const int *elements, float *svectors, float *tvectors, float *normals);
576 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts);
577 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh);
578 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *v);
579 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, float *vert0, float *vert1, float *vert2);
580 void Mod_ShadowMesh_AddPolygon(mempool_t *mempool, shadowmesh_t *mesh, int numverts, float *verts);
581 void Mod_ShadowMesh_AddMesh(mempool_t *mempool, shadowmesh_t *mesh, float *verts, int numtris, int *elements);
582 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int initialnumtriangles);
583 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh);
584 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius);
585 void Mod_ShadowMesh_Free(shadowmesh_t *mesh);
587 int Mod_LoadSkinFrame(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture);
588 int Mod_LoadSkinFrame_Internal(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture, qbyte *skindata, int width, int height);
590 // used for talking to the QuakeC mainly
591 int Mod_Q1BSP_NativeContentsFromSuperContents(struct model_s *model, int supercontents);
592 int Mod_Q1BSP_SuperContentsFromNativeContents(struct model_s *model, int nativecontents);
594 extern cvar_t r_mipskins;
596 typedef struct skinfileitem_s
598 struct skinfileitem_s *next;
599 char name[MAX_QPATH];
600 char replacement[MAX_QPATH];
604 typedef struct skinfile_s
606 struct skinfile_s *next;
607 skinfileitem_t *items;
611 skinfile_t *Mod_LoadSkinFiles(void);
612 void Mod_FreeSkinFiles(skinfile_t *skinfile);
613 int Mod_CountSkinFiles(skinfile_t *skinfile);
615 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f);