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 // surfaceflags from bsp
283 #define Q3SURFACEFLAG_NODAMAGE 1
284 #define Q3SURFACEFLAG_SLICK 2
285 #define Q3SURFACEFLAG_SKY 4
286 #define Q3SURFACEFLAG_LADDER 8
287 #define Q3SURFACEFLAG_NOIMPACT 16
288 #define Q3SURFACEFLAG_NOMARKS 32
289 #define Q3SURFACEFLAG_FLESH 64
290 #define Q3SURFACEFLAG_NODRAW 128
291 #define Q3SURFACEFLAG_HINT 256
292 #define Q3SURFACEFLAG_SKIP 512
293 #define Q3SURFACEFLAG_NOLIGHTMAP 1024
294 #define Q3SURFACEFLAG_POINTLIGHT 2048
295 #define Q3SURFACEFLAG_METALSTEPS 4096
296 #define Q3SURFACEFLAG_NOSTEPS 8192
297 #define Q3SURFACEFLAG_NONSOLID 16384
298 #define Q3SURFACEFLAG_LIGHTFILTER 32768
299 #define Q3SURFACEFLAG_ALPHASHADOW 65536
300 #define Q3SURFACEFLAG_NODLIGHT 131072
301 #define Q3SURFACEFLAG_DUST 262144
303 // surfaceparms from shaders
304 #define Q3SURFACEPARM_ALPHASHADOW 1
305 #define Q3SURFACEPARM_AREAPORTAL 2
306 #define Q3SURFACEPARM_CLUSTERPORTAL 4
307 #define Q3SURFACEPARM_DETAIL 8
308 #define Q3SURFACEPARM_DONOTENTER 16
309 #define Q3SURFACEPARM_FOG 32
310 #define Q3SURFACEPARM_LAVA 64
311 #define Q3SURFACEPARM_LIGHTFILTER 128
312 #define Q3SURFACEPARM_METALSTEPS 256
313 #define Q3SURFACEPARM_NODAMAGE 512
314 #define Q3SURFACEPARM_NODLIGHT 1024
315 #define Q3SURFACEPARM_NODRAW 2048
316 #define Q3SURFACEPARM_NODROP 4096
317 #define Q3SURFACEPARM_NOIMPACT 8192
318 #define Q3SURFACEPARM_NOLIGHTMAP 16384
319 #define Q3SURFACEPARM_NOMARKS 32768
320 #define Q3SURFACEPARM_NOMIPMAPS 65536
321 #define Q3SURFACEPARM_NONSOLID 131072
322 #define Q3SURFACEPARM_ORIGIN 262144
323 #define Q3SURFACEPARM_PLAYERCLIP 524288
324 #define Q3SURFACEPARM_SKY 1048576
325 #define Q3SURFACEPARM_SLICK 2197152
326 #define Q3SURFACEPARM_SLIME 4194304
327 #define Q3SURFACEPARM_STRUCTURAL 8388608
328 #define Q3SURFACEPARM_TRANS 16777216
329 #define Q3SURFACEPARM_WATER 33554432
331 typedef struct q3mtexture_s
333 char name[Q3PATHLENGTH];
344 typedef struct q3mnode_s
346 //this part shared between node and leaf
348 struct q3mnode_s *parent;
351 // this part unique to nodes
352 struct mplane_s *plane;
353 struct q3mnode_s *children[2];
357 typedef struct q3mleaf_s
359 //this part shared between node and leaf
361 struct q3mnode_s *parent;
364 // this part unique to leafs
368 struct q3mface_s **firstleafface;
370 struct q3mbrush_s **firstleafbrush;
374 typedef struct q3mmodel_s
379 struct q3mface_s *firstface;
381 struct q3mbrush_s *firstbrush;
385 typedef struct q3mbrush_s
387 struct colbrushf_s *colbrushf;
389 struct q3mbrushside_s *firstbrushside;
390 struct q3mtexture_s *texture;
394 typedef struct q3mbrushside_s
396 struct mplane_s *plane;
397 struct q3mtexture_s *texture;
401 typedef struct q3meffect_s
403 char shadername[Q3PATHLENGTH];
404 struct q3mbrush_s *brush;
405 int unknown; // 5 or -1
409 typedef struct q3mface_s
411 struct q3mtexture_s *texture;
412 struct q3meffect_s *effect;
413 rtexture_t *lightmaptexture;
414 int collisions; // performs per triangle collisions on this surface
415 int collisionmarkframe; // don't collide twice in one trace
420 // used for processing
422 // (world only) visframe == r_framecount means it is visible this frame
424 // bounding box for culling
430 float *data_vertex3f;
431 float *data_texcoordtexture2f;
432 float *data_texcoordlightmap2f;
433 float *data_svector3f;
434 float *data_tvector3f;
435 float *data_normal3f;
438 int *data_neighbor3i;
440 // temporary use by light processing
441 int lighttemp_castshadow;
445 typedef struct model_brushq3_s
447 // if non-zero this is a submodel
448 // (this is the number of the submodel, an index into data_models)
452 q3mtexture_t *data_textures;
455 mplane_t *data_planes;
458 q3mnode_t *data_nodes;
461 q3mleaf_t *data_leafs;
464 q3mbrush_t **data_leafbrushes;
467 q3mface_t **data_leaffaces;
470 q3mmodel_t *data_models;
471 // each submodel gets its own model struct so this is different for each.
472 q3mmodel_t *data_thismodel;
475 q3mbrush_t *data_brushes;
478 q3mbrushside_t *data_brushsides;
481 float *data_vertex3f;
482 float *data_texcoordtexture2f;
483 float *data_texcoordlightmap2f;
484 float *data_svector3f;
485 float *data_tvector3f;
486 float *data_normal3f;
491 int *data_neighbor3i;
494 q3meffect_t *data_effects;
497 q3mface_t *data_faces;
501 rtexture_t **data_lightmaps;
503 // voxel light data with directional shading
505 q3dlightgrid_t *data_lightgrid;
506 // size of each cell (may vary by map, typically 64 64 128)
507 float num_lightgrid_cellsize[3];
508 // 1.0 / num_lightgrid_cellsize
509 float num_lightgrid_scale[3];
510 // dimensions of the world model in lightgrid cells
511 int num_lightgrid_imins[3];
512 int num_lightgrid_imaxs[3];
513 int num_lightgrid_isize[3];
515 int num_lightgrid_dimensions[3];
516 // transform modelspace coordinates to lightgrid index
517 matrix4x4_t num_lightgrid_indexfromworld;
521 int num_pvschainlength;
522 unsigned char *data_pvschains;
524 //pvschain = model->brushq3.data_pvschains + mycluster * model->brushq3.num_pvschainlength;
525 //if (pvschain[thatcluster >> 3] & (1 << (thatcluster & 7)))
529 typedef struct model_s
531 // name and path of model, for example "progs/player.mdl"
532 char name[MAX_QPATH];
533 // model needs to be loaded if this is true
535 // set if the model is used in current map, models which are not, are purged
537 // true if this is the world model (I.E. defines what sky to use, and may contain submodels)
538 qboolean isworldmodel;
539 // CRC of the file this model was loaded from, to reload if changed
541 // mod_brush, mod_alias, mod_sprite
543 // memory pool for allocations
545 // all models use textures...
546 rtexturepool_t *texturepool;
547 // flags from the model file
549 // engine calculated flags, ones that can not be set in the file
551 // LordHavoc: if true (normally only for sprites) the model/sprite/bmodel is always rendered fullbright
553 // number of QC accessible frame(group)s in the model
555 // number of QC accessible skin(group)s in the model
557 // whether to randomize animated framegroups
559 // bounding box at angles '0 0 0'
560 vec3_t normalmins, normalmaxs;
561 // bounding box if yaw angle is not 0, but pitch and roll are
562 vec3_t yawmins, yawmaxs;
563 // bounding box if pitch or roll are used
564 vec3_t rotatedmins, rotatedmaxs;
565 // sphere radius, usable at any angles
567 // squared sphere radius for easier comparisons
569 // skin animation info
570 animscene_t *skinscenes; // [numskins]
571 // skin animation info
572 animscene_t *animscenes; // [numframes]
573 // draw the model's sky polygons (only used by brush models)
574 void(*DrawSky)(struct entity_render_s *ent);
575 // draw the model using lightmap/dlight shading
576 void(*Draw)(struct entity_render_s *ent);
577 // draw a shadow volume for the model based on light source
578 void(*DrawShadowVolume)(struct entity_render_s *ent, vec3_t relativelightorigin, float lightradius);
579 // draw the lighting on a model (through stencil)
580 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);
581 // trace a box against this model
582 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);
583 // fields belonging to each type of model
585 model_sprite_t sprite;
587 model_brushq1_t brushq1;
588 /* MSVC can't handle an empty struct, so this is commented out for now
589 model_brushq2_t brushq2;
591 model_brushq3_t brushq3;
592 // skin files can have different tags for each skin
593 overridetagnameset_t *data_overridetagnamesforskin;
594 // flags this model for offseting sounds to the model center (used by brush models)
599 //============================================================================
601 // this can be used for anything without a valid texture
602 extern rtexture_t *r_notexture;
603 #define NUM_DETAILTEXTURES 1
604 extern rtexture_t *mod_shared_detailtextures[NUM_DETAILTEXTURES];
605 // every texture must be in a pool...
606 extern rtexturepool_t *mod_shared_texturepool;
608 extern rtexture_t *mod_shared_distorttexture[64];
611 extern model_t *loadmodel;
612 extern qbyte *mod_base;
613 // sky/water subdivision
614 //extern cvar_t gl_subdivide_size;
615 // texture fullbrights
616 extern cvar_t r_fullbrights;
618 void Mod_Init (void);
619 void Mod_CheckLoaded (model_t *mod);
620 void Mod_ClearAll (void);
621 model_t *Mod_FindName (const char *name);
622 model_t *Mod_ForName (const char *name, qboolean crash, qboolean checkdisk, qboolean isworldmodel);
623 void Mod_TouchModel (const char *name);
624 void Mod_UnloadModel (model_t *mod);
626 void Mod_ClearUsed(void);
627 void Mod_PurgeUnused(void);
628 void Mod_LoadModels(void);
630 extern model_t *loadmodel;
631 extern char loadname[32]; // for hunk tags
633 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles);
634 void Mod_ValidateElements(const int *elements, int numtriangles, int numverts, const char *filename, int fileline);
635 void Mod_BuildTextureVectorsAndNormals(int numverts, int numtriangles, const float *vertex, const float *texcoord, const int *elements, float *svectors, float *tvectors, float *normals);
637 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);
638 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors);
639 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f);
640 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f);
641 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);
642 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);
643 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, int light, int neighbors);
644 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius);
645 void Mod_ShadowMesh_Free(shadowmesh_t *mesh);
647 int Mod_LoadSkinFrame(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture);
648 int Mod_LoadSkinFrame_Internal(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture, qbyte *skindata, int width, int height);
650 // used for talking to the QuakeC mainly
651 int Mod_Q1BSP_NativeContentsFromSuperContents(struct model_s *model, int supercontents);
652 int Mod_Q1BSP_SuperContentsFromNativeContents(struct model_s *model, int nativecontents);
654 extern cvar_t r_mipskins;
656 typedef struct skinfileitem_s
658 struct skinfileitem_s *next;
659 char name[MAX_QPATH];
660 char replacement[MAX_QPATH];
664 typedef struct skinfile_s
666 struct skinfile_s *next;
667 skinfileitem_t *items;
671 skinfile_t *Mod_LoadSkinFiles(void);
672 void Mod_FreeSkinFiles(skinfile_t *skinfile);
673 int Mod_CountSkinFiles(skinfile_t *skinfile);
675 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f);