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
88 struct shadowmesh_s *next;
89 // used for light mesh (NULL on shadow mesh)
90 rtexture_t *map_diffuse;
91 rtexture_t *map_specular;
92 rtexture_t *map_normal;
94 int numverts, maxverts;
95 int numtriangles, maxtriangles;
98 // used for light mesh (NULL on shadow mesh)
105 // used for shadow mesh (NULL on light mesh)
107 // these are NULL after Mod_ShadowMesh_Finish is performed, only used
108 // while building meshes
109 shadowmeshvertexhash_t **vertexhashtable, *vertexhashentries;
114 #include "matrixlib.h"
116 #include "model_brush.h"
117 #include "model_sprite.h"
118 #include "model_alias.h"
120 typedef struct model_alias_s
122 // LordHavoc: Q2/ZYM model support
125 // mdl/md2/md3 models are the same after loading
127 aliasmesh_t *aliasdata_meshes;
130 int aliasnum_tagframes;
131 aliastag_t *aliasdata_tags;
133 // for Zymotic models
139 float *zymdata_texcoords;
140 rtexture_t **zymdata_textures;
141 qbyte *zymdata_trizone;
142 zymbone_t *zymdata_bones;
143 unsigned int *zymdata_vertbonecounts;
144 zymvertex_t *zymdata_verts;
145 unsigned int *zymdata_renderlist;
146 float *zymdata_poses;
150 typedef struct model_sprite_s
153 mspriteframe_t *sprdata_frames;
159 typedef struct model_brush_s
161 // true if this model is a HalfLife .bsp file
163 // string of entity definitions (.map format)
165 // number of submodels in this map (just used by server to know how many
166 // submodels to load)
169 int (*SuperContentsFromNativeContents)(struct model_s *model, int nativecontents);
170 int (*NativeContentsFromSuperContents)(struct model_s *model, int supercontents);
171 qbyte *(*GetPVS)(struct model_s *model, const vec3_t p);
172 int (*FatPVS)(struct model_s *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbufferlength);
173 int (*BoxTouchingPVS)(struct model_s *model, const qbyte *pvs, const vec3_t mins, const vec3_t maxs);
174 void (*LightPoint)(struct model_s *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal);
175 void (*FindNonSolidLocation)(struct model_s *model, const vec3_t in, vec3_t out, vec_t radius);
176 // these are actually only found on brushq1, but NULL is handled gracefully
177 void (*AmbientSoundLevelsForPoint)(struct model_s *model, const vec3_t p, qbyte *out, int outsize);
178 void (*RoundUpToHullSize)(struct model_s *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs);
182 typedef struct model_brushq1_s
184 int firstmodelsurface, nummodelsurfaces;
186 // lightmap format, set to r_lightmaprgba when model is loaded
194 // number of actual leafs (including 0 which is solid)
196 // visible leafs, not counting 0 (solid)
213 msurface_t *surfaces;
214 int *surfacevisframes;
215 int *surfacepvsframes;
216 msurface_t *surfacepvsnext;
217 surfmesh_t *entiremesh;
223 dclipnode_t *clipnodes;
228 hull_t hulls[MAX_MAP_HULLS];
233 int num_compressedpvs;
234 qbyte *data_compressedpvs;
235 qbyte *data_decompressedpvs;
244 mvertex_t *portalpoints;
249 // pvs visibility marking
250 mleaf_t *pvsviewleaf;
251 int pvsviewleafnovis;
253 mleaf_t *pvsleafchain;
255 int pvssurflistlength;
256 // these get rebuilt as the player moves around if this is the world,
257 // otherwise they are left alone (no pvs for bmodels)
258 msurface_t ***pvstexturechains;
259 msurface_t **pvstexturechainsbuffer;
260 int *pvstexturechainslength;
262 // lightmap update chains for light styles
265 int *light_stylevalue;
266 msurface_t ***light_styleupdatechains;
267 msurface_t **light_styleupdatechainsbuffer;
270 mleaf_t *(*PointInLeaf)(struct model_s *model, const float *p);
271 void (*BuildPVSTextureChains)(struct model_s *model);
275 /* MSVC can't compile empty structs, so this is commented out for now
276 typedef struct model_brushq2_s
282 #define Q3MTEXTURERENDERFLAGS_NODRAW 1
283 #define Q3MTEXTURERENDERFLAGS_SKY 2
285 typedef struct q3mtexture_s
287 char name[Q3PATHLENGTH];
298 typedef struct q3mnode_s
300 //this part shared between node and leaf
302 struct q3mnode_s *parent;
305 // this part unique to nodes
306 struct mplane_s *plane;
307 struct q3mnode_s *children[2];
311 typedef struct q3mleaf_s
313 //this part shared between node and leaf
315 struct q3mnode_s *parent;
318 // this part unique to leafs
322 struct q3mface_s **firstleafface;
324 struct q3mbrush_s **firstleafbrush;
328 typedef struct q3mmodel_s
333 struct q3mface_s *firstface;
335 struct q3mbrush_s *firstbrush;
339 typedef struct q3mbrush_s
341 struct colbrushf_s *colbrushf;
343 struct q3mbrushside_s *firstbrushside;
344 struct q3mtexture_s *texture;
348 typedef struct q3mbrushside_s
350 struct mplane_s *plane;
351 struct q3mtexture_s *texture;
355 typedef struct q3meffect_s
357 char shadername[Q3PATHLENGTH];
358 struct q3mbrush_s *brush;
359 int unknown; // 5 or -1
363 typedef struct q3mface_s
365 struct q3mtexture_s *texture;
366 struct q3meffect_s *effect;
367 rtexture_t *lightmaptexture;
368 int collisions; // performs per triangle collisions on this surface
369 int collisionmarkframe; // don't collide twice in one trace
374 // used for processing
376 // (world only) visframe == r_framecount means it is visible this frame
378 // bounding box for culling
384 float *data_vertex3f;
385 float *data_texcoordtexture2f;
386 float *data_texcoordlightmap2f;
387 float *data_svector3f;
388 float *data_tvector3f;
389 float *data_normal3f;
392 int *data_neighbor3i;
394 // temporary use by light processing
395 int lighttemp_castshadow;
399 typedef struct model_brushq3_s
401 // if non-zero this is a submodel
402 // (this is the number of the submodel, an index into data_models)
406 q3mtexture_t *data_textures;
409 mplane_t *data_planes;
412 q3mnode_t *data_nodes;
415 q3mleaf_t *data_leafs;
418 q3mbrush_t **data_leafbrushes;
421 q3mface_t **data_leaffaces;
424 q3mmodel_t *data_models;
425 // each submodel gets its own model struct so this is different for each.
426 q3mmodel_t *data_thismodel;
429 q3mbrush_t *data_brushes;
432 q3mbrushside_t *data_brushsides;
435 float *data_vertex3f;
436 float *data_texcoordtexture2f;
437 float *data_texcoordlightmap2f;
438 float *data_svector3f;
439 float *data_tvector3f;
440 float *data_normal3f;
445 int *data_neighbor3i;
448 q3meffect_t *data_effects;
451 q3mface_t *data_faces;
455 rtexture_t **data_lightmaps;
457 // voxel light data with directional shading
459 q3dlightgrid_t *data_lightgrid;
460 // size of each cell (may vary by map, typically 64 64 128)
461 float num_lightgrid_cellsize[3];
462 // 1.0 / num_lightgrid_cellsize
463 float num_lightgrid_scale[3];
464 // dimensions of the world model in lightgrid cells
465 int num_lightgrid_imins[3];
466 int num_lightgrid_imaxs[3];
467 int num_lightgrid_isize[3];
469 int num_lightgrid_dimensions[3];
470 // transform modelspace coordinates to lightgrid index
471 matrix4x4_t num_lightgrid_indexfromworld;
475 int num_pvschainlength;
476 unsigned char *data_pvschains;
478 //pvschain = model->brushq3.data_pvschains + mycluster * model->brushq3.num_pvschainlength;
479 //if (pvschain[thatcluster >> 3] & (1 << (thatcluster & 7)))
483 typedef struct model_s
485 // name and path of model, for example "progs/player.mdl"
486 char name[MAX_QPATH];
487 // model needs to be loaded if this is true
489 // set if the model is used in current map, models which are not, are purged
491 // true if this is the world model (I.E. defines what sky to use, and may contain submodels)
492 qboolean isworldmodel;
493 // CRC of the file this model was loaded from, to reload if changed
495 // mod_brush, mod_alias, mod_sprite
497 // memory pool for allocations
499 // all models use textures...
500 rtexturepool_t *texturepool;
501 // flags from the model file
503 // engine calculated flags, ones that can not be set in the file
505 // LordHavoc: if true (normally only for sprites) the model/sprite/bmodel is always rendered fullbright
507 // number of QC accessible frame(group)s in the model
509 // number of QC accessible skin(group)s in the model
511 // whether to randomize animated framegroups
513 // bounding box at angles '0 0 0'
514 vec3_t normalmins, normalmaxs;
515 // bounding box if yaw angle is not 0, but pitch and roll are
516 vec3_t yawmins, yawmaxs;
517 // bounding box if pitch or roll are used
518 vec3_t rotatedmins, rotatedmaxs;
519 // sphere radius, usable at any angles
521 // squared sphere radius for easier comparisons
523 // skin animation info
524 animscene_t *skinscenes; // [numskins]
525 // skin animation info
526 animscene_t *animscenes; // [numframes]
527 // draw the model's sky polygons (only used by brush models)
528 void(*DrawSky)(struct entity_render_s *ent);
529 // draw the model using lightmap/dlight shading
530 void(*Draw)(struct entity_render_s *ent);
531 // draw a shadow volume for the model based on light source
532 void(*DrawShadowVolume)(struct entity_render_s *ent, vec3_t relativelightorigin, float lightradius);
533 // draw the lighting on a model (through stencil)
534 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);
535 // trace a box against this model
536 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);
537 // fields belonging to each type of model
539 model_sprite_t sprite;
541 model_brushq1_t brushq1;
542 /* MSVC can't handle an empty struct, so this is commented out for now
543 model_brushq2_t brushq2;
545 model_brushq3_t brushq3;
546 // skin files can have different tags for each skin
547 overridetagnameset_t *data_overridetagnamesforskin;
548 // flags this model for offseting sounds to the model center (used by brush models)
553 //============================================================================
555 // this can be used for anything without a valid texture
556 extern rtexture_t *r_notexture;
557 #define NUM_DETAILTEXTURES 1
558 extern rtexture_t *mod_shared_detailtextures[NUM_DETAILTEXTURES];
559 // every texture must be in a pool...
560 extern rtexturepool_t *mod_shared_texturepool;
562 extern rtexture_t *mod_shared_distorttexture[64];
565 extern model_t *loadmodel;
566 extern qbyte *mod_base;
567 // sky/water subdivision
568 //extern cvar_t gl_subdivide_size;
569 // texture fullbrights
570 extern cvar_t r_fullbrights;
572 void Mod_Init (void);
573 void Mod_CheckLoaded (model_t *mod);
574 void Mod_ClearAll (void);
575 model_t *Mod_FindName (const char *name);
576 model_t *Mod_ForName (const char *name, qboolean crash, qboolean checkdisk, qboolean isworldmodel);
577 void Mod_TouchModel (const char *name);
578 void Mod_UnloadModel (model_t *mod);
580 void Mod_ClearUsed(void);
581 void Mod_PurgeUnused(void);
582 void Mod_LoadModels(void);
584 extern model_t *loadmodel;
585 extern char loadname[32]; // for hunk tags
587 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles);
588 void Mod_ValidateElements(const int *elements, int numtriangles, int numverts, const char *filename, int fileline);
589 void Mod_BuildTextureVectorsAndNormals(int numverts, int numtriangles, const float *vertex, const float *texcoord, const int *elements, float *svectors, float *tvectors, float *normals);
591 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable);
592 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors);
593 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f);
594 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f);
595 void Mod_ShadowMesh_AddMesh(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, int numtris, int *element3i);
596 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable);
597 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, int light, int neighbors);
598 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius);
599 void Mod_ShadowMesh_Free(shadowmesh_t *mesh);
601 int Mod_LoadSkinFrame(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture);
602 int Mod_LoadSkinFrame_Internal(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture, qbyte *skindata, int width, int height);
604 // used for talking to the QuakeC mainly
605 int Mod_Q1BSP_NativeContentsFromSuperContents(struct model_s *model, int supercontents);
606 int Mod_Q1BSP_SuperContentsFromNativeContents(struct model_s *model, int nativecontents);
608 extern cvar_t r_mipskins;
610 typedef struct skinfileitem_s
612 struct skinfileitem_s *next;
613 char name[MAX_QPATH];
614 char replacement[MAX_QPATH];
618 typedef struct skinfile_s
620 struct skinfile_s *next;
621 skinfileitem_t *items;
625 skinfile_t *Mod_LoadSkinFiles(void);
626 void Mod_FreeSkinFiles(skinfile_t *skinfile);
627 int Mod_CountSkinFiles(skinfile_t *skinfile);
629 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f);