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 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, int hitsupercontentsmask);
163 // these are actually only found on brushq1, but NULL is handled gracefully
164 void (*AmbientSoundLevelsForPoint)(struct model_s *model, const vec3_t p, qbyte *out, int outsize);
165 void (*RoundUpToHullSize)(struct model_s *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs);
169 typedef struct model_brushq1_s
171 int firstmodelsurface, nummodelsurfaces;
173 // lightmap format, set to r_lightmaprgba when model is loaded
181 // number of actual leafs (including 0 which is solid)
183 // visible leafs, not counting 0 (solid)
200 msurface_t *surfaces;
201 int *surfacevisframes;
202 int *surfacepvsframes;
203 msurface_t *surfacepvsnext;
204 surfmesh_t *entiremesh;
205 surfmesh_t *surfmeshes;
211 dclipnode_t *clipnodes;
216 hull_t hulls[MAX_MAP_HULLS];
221 int num_compressedpvs;
222 qbyte *data_compressedpvs;
223 qbyte *data_decompressedpvs;
232 mvertex_t *portalpoints;
237 // pvs visibility marking
238 mleaf_t *pvsviewleaf;
239 int pvsviewleafnovis;
241 mleaf_t *pvsleafchain;
243 int pvssurflistlength;
244 // these get rebuilt as the player moves around if this is the world,
245 // otherwise they are left alone (no pvs for bmodels)
246 msurface_t ***pvstexturechains;
247 msurface_t **pvstexturechainsbuffer;
248 int *pvstexturechainslength;
250 // lightmap update chains for light styles
253 int *light_stylevalue;
254 msurface_t ***light_styleupdatechains;
255 msurface_t **light_styleupdatechainsbuffer;
259 mleaf_t *(*PointInLeaf)(struct model_s *model, const float *p);
260 void (*BuildPVSTextureChains)(struct model_s *model);
264 /* MSVC can't compile empty structs, so this is commented out for now
265 typedef struct model_brushq2_s
271 #define Q3MTEXTURERENDERFLAGS_NODRAW 1
273 typedef struct q3mtexture_s
275 char name[Q3PATHLENGTH];
286 typedef struct q3mnode_s
288 //this part shared between node and leaf
290 struct q3mnode_s *parent;
293 // this part unique to nodes
294 struct mplane_s *plane;
295 struct q3mnode_s *children[2];
299 typedef struct q3mleaf_s
301 //this part shared between node and leaf
303 struct q3mnode_s *parent;
306 // this part unique to leafs
310 struct q3mface_s **firstleafface;
312 struct q3mbrush_s **firstleafbrush;
316 typedef struct q3mmodel_s
321 struct q3mface_s *firstface;
323 struct q3mbrush_s *firstbrush;
327 typedef struct q3mbrush_s
329 struct colbrushf_s *colbrushf;
331 struct q3mbrushside_s *firstbrushside;
332 struct q3mtexture_s *texture;
336 typedef struct q3mbrushside_s
338 struct mplane_s *plane;
339 struct q3mtexture_s *texture;
343 typedef struct q3meffect_s
345 char shadername[Q3PATHLENGTH];
346 struct q3mbrush_s *brush;
347 int unknown; // 5 or -1
351 typedef struct q3mface_s
353 struct q3mtexture_s *texture;
354 struct q3meffect_s *effect;
355 rtexture_t *lightmaptexture;
356 int collisions; // performs per triangle collisions on this surface
357 int collisionmarkframe; // don't collide twice in one trace
364 // used for processing
366 // (world only) visframe == r_framecount means it is visible this frame
368 // bounding box for culling
372 float *data_vertex3f;
373 float *data_texcoordtexture2f;
374 float *data_texcoordlightmap2f;
375 float *data_svector3f;
376 float *data_tvector3f;
377 float *data_normal3f;
381 int *data_neighbor3i;
385 typedef struct model_brushq3_s
387 // if non-zero this is a submodel
388 // (this is the number of the submodel, an index into data_models)
392 q3mtexture_t *data_textures;
395 mplane_t *data_planes;
398 q3mnode_t *data_nodes;
401 q3mleaf_t *data_leafs;
404 q3mbrush_t **data_leafbrushes;
407 q3mface_t **data_leaffaces;
410 q3mmodel_t *data_models;
411 // each submodel gets its own model struct so this is different for each.
412 q3mmodel_t *data_thismodel;
415 q3mbrush_t *data_brushes;
418 q3mbrushside_t *data_brushsides;
421 float *data_vertex3f;
422 float *data_texcoordtexture2f;
423 float *data_texcoordlightmap2f;
424 float *data_svector3f;
425 float *data_tvector3f;
426 float *data_normal3f;
431 int *data_neighbor3i;
434 q3meffect_t *data_effects;
437 q3mface_t *data_faces;
441 rtexture_t **data_lightmaps;
443 // voxel light data with directional shading
445 q3dlightgrid_t *data_lightgrid;
446 // size of each cell (may vary by map, typically 64 64 128)
447 float num_lightgrid_cellsize[3];
448 // 1.0 / num_lightgrid_cellsize
449 float num_lightgrid_scale[3];
450 // dimensions of the world model in lightgrid cells
451 int num_lightgrid_imins[3];
452 int num_lightgrid_imaxs[3];
453 int num_lightgrid_isize[3];
455 int num_lightgrid_dimensions[3];
456 // transform modelspace coordinates to lightgrid index
457 matrix4x4_t num_lightgrid_indexfromworld;
461 int num_pvschainlength;
462 unsigned char *data_pvschains;
464 //pvschain = model->brushq3.data_pvschains + mycluster * model->brushq3.num_pvschainlength;
465 //if (pvschain[thatcluster >> 3] & (1 << (thatcluster & 7)))
469 typedef struct model_s
471 // name and path of model, for example "progs/player.mdl"
472 char name[MAX_QPATH];
473 // model needs to be loaded if this is true
475 // set if the model is used in current map, models which are not, are purged
477 // true if this is the world model (I.E. defines what sky to use, and may contain submodels)
478 qboolean isworldmodel;
479 // CRC of the file this model was loaded from, to reload if changed
481 // mod_brush, mod_alias, mod_sprite
483 // memory pool for allocations
485 // all models use textures...
486 rtexturepool_t *texturepool;
487 // flags from the model file
489 // engine calculated flags, ones that can not be set in the file
491 // LordHavoc: if true (normally only for sprites) the model/sprite/bmodel is always rendered fullbright
493 // number of QC accessible frame(group)s in the model
495 // number of QC accessible skin(group)s in the model
497 // whether to randomize animated framegroups
499 // bounding box at angles '0 0 0'
500 vec3_t normalmins, normalmaxs;
501 // bounding box if yaw angle is not 0, but pitch and roll are
502 vec3_t yawmins, yawmaxs;
503 // bounding box if pitch or roll are used
504 vec3_t rotatedmins, rotatedmaxs;
505 // sphere radius, usable at any angles
507 // squared sphere radius for easier comparisons
509 // skin animation info
510 animscene_t *skinscenes; // [numskins]
511 // skin animation info
512 animscene_t *animscenes; // [numframes]
513 // draw the model's sky polygons (only used by brush models)
514 void(*DrawSky)(struct entity_render_s *ent);
515 // draw the model using lightmap/dlight shading
516 void(*Draw)(struct entity_render_s *ent);
517 // draw a fake shadow for the model
518 void(*DrawFakeShadow)(struct entity_render_s *ent);
519 // draw a shadow volume for the model based on light source
520 void(*DrawShadowVolume)(struct entity_render_s *ent, vec3_t relativelightorigin, float lightradius);
521 // draw the lighting on a model (through stencil)
522 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);
523 // fields belonging to each type of model
525 model_sprite_t sprite;
527 model_brushq1_t brushq1;
528 /* MSVC can't handle an empty struct, so this is commented out for now
529 model_brushq2_t brushq2;
531 model_brushq3_t brushq3;
532 // skin files can have different tags for each skin
533 overridetagnameset_t *data_overridetagnamesforskin;
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;
547 extern model_t *loadmodel;
548 extern qbyte *mod_base;
549 // sky/water subdivision
550 //extern cvar_t gl_subdivide_size;
551 // texture fullbrights
552 extern cvar_t r_fullbrights;
554 void Mod_Init (void);
555 void Mod_CheckLoaded (model_t *mod);
556 void Mod_ClearAll (void);
557 model_t *Mod_FindName (const char *name);
558 model_t *Mod_ForName (const char *name, qboolean crash, qboolean checkdisk, qboolean isworldmodel);
559 void Mod_TouchModel (const char *name);
560 void Mod_UnloadModel (model_t *mod);
562 void Mod_ClearUsed(void);
563 void Mod_PurgeUnused(void);
564 void Mod_LoadModels(void);
566 extern model_t *loadmodel;
567 extern char loadname[32]; // for hunk tags
569 int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore);
570 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles);
571 void Mod_ValidateElements(const int *elements, int numtriangles, int numverts, const char *filename, int fileline);
572 void Mod_BuildTextureVectorsAndNormals(int numverts, int numtriangles, const float *vertex, const float *texcoord, const int *elements, float *svectors, float *tvectors, float *normals);
574 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts);
575 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh);
576 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *v);
577 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, float *vert0, float *vert1, float *vert2);
578 void Mod_ShadowMesh_AddPolygon(mempool_t *mempool, shadowmesh_t *mesh, int numverts, float *verts);
579 void Mod_ShadowMesh_AddMesh(mempool_t *mempool, shadowmesh_t *mesh, float *verts, int numtris, int *elements);
580 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int initialnumtriangles);
581 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh);
582 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius);
583 void Mod_ShadowMesh_Free(shadowmesh_t *mesh);
585 int Mod_LoadSkinFrame(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture);
586 int Mod_LoadSkinFrame_Internal(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture, qbyte *skindata, int width, int height);
588 // used for talking to the QuakeC mainly
589 int Mod_Q1BSP_NativeContentsFromSuperContents(struct model_s *model, int supercontents);
590 int Mod_Q1BSP_SuperContentsFromNativeContents(struct model_s *model, int nativecontents);
592 extern cvar_t r_mipskins;
594 typedef struct skinfileitem_s
596 struct skinfileitem_s *next;
597 char name[MAX_QPATH];
598 char replacement[MAX_QPATH];
602 typedef struct skinfile_s
604 struct skinfile_s *next;
605 skinfileitem_t *items;
609 skinfile_t *Mod_LoadSkinFiles(void);
610 void Mod_FreeSkinFiles(skinfile_t *skinfile);
611 int Mod_CountSkinFiles(skinfile_t *skinfile);
613 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f);