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;
236 int num_pvsclusterbytes;
237 unsigned char *data_pvsclusters;
246 mvertex_t *portalpoints;
251 // pvs visibility marking
252 mleaf_t *pvsviewleaf;
253 int pvsviewleafnovis;
255 mleaf_t *pvsleafchain;
257 int pvssurflistlength;
258 // these get rebuilt as the player moves around if this is the world,
259 // otherwise they are left alone (no pvs for bmodels)
260 msurface_t ***pvstexturechains;
261 msurface_t **pvstexturechainsbuffer;
262 int *pvstexturechainslength;
264 // lightmap update chains for light styles
267 int *light_stylevalue;
268 msurface_t ***light_styleupdatechains;
269 msurface_t **light_styleupdatechainsbuffer;
272 mleaf_t *(*PointInLeaf)(struct model_s *model, const float *p);
273 void (*BuildPVSTextureChains)(struct model_s *model);
277 /* MSVC can't compile empty structs, so this is commented out for now
278 typedef struct model_brushq2_s
284 // surfaceflags from bsp
285 #define Q3SURFACEFLAG_NODAMAGE 1
286 #define Q3SURFACEFLAG_SLICK 2
287 #define Q3SURFACEFLAG_SKY 4
288 #define Q3SURFACEFLAG_LADDER 8
289 #define Q3SURFACEFLAG_NOIMPACT 16
290 #define Q3SURFACEFLAG_NOMARKS 32
291 #define Q3SURFACEFLAG_FLESH 64
292 #define Q3SURFACEFLAG_NODRAW 128
293 #define Q3SURFACEFLAG_HINT 256
294 #define Q3SURFACEFLAG_SKIP 512
295 #define Q3SURFACEFLAG_NOLIGHTMAP 1024
296 #define Q3SURFACEFLAG_POINTLIGHT 2048
297 #define Q3SURFACEFLAG_METALSTEPS 4096
298 #define Q3SURFACEFLAG_NOSTEPS 8192
299 #define Q3SURFACEFLAG_NONSOLID 16384
300 #define Q3SURFACEFLAG_LIGHTFILTER 32768
301 #define Q3SURFACEFLAG_ALPHASHADOW 65536
302 #define Q3SURFACEFLAG_NODLIGHT 131072
303 #define Q3SURFACEFLAG_DUST 262144
305 // surfaceparms from shaders
306 #define Q3SURFACEPARM_ALPHASHADOW 1
307 #define Q3SURFACEPARM_AREAPORTAL 2
308 #define Q3SURFACEPARM_CLUSTERPORTAL 4
309 #define Q3SURFACEPARM_DETAIL 8
310 #define Q3SURFACEPARM_DONOTENTER 16
311 #define Q3SURFACEPARM_FOG 32
312 #define Q3SURFACEPARM_LAVA 64
313 #define Q3SURFACEPARM_LIGHTFILTER 128
314 #define Q3SURFACEPARM_METALSTEPS 256
315 #define Q3SURFACEPARM_NODAMAGE 512
316 #define Q3SURFACEPARM_NODLIGHT 1024
317 #define Q3SURFACEPARM_NODRAW 2048
318 #define Q3SURFACEPARM_NODROP 4096
319 #define Q3SURFACEPARM_NOIMPACT 8192
320 #define Q3SURFACEPARM_NOLIGHTMAP 16384
321 #define Q3SURFACEPARM_NOMARKS 32768
322 #define Q3SURFACEPARM_NOMIPMAPS 65536
323 #define Q3SURFACEPARM_NONSOLID 131072
324 #define Q3SURFACEPARM_ORIGIN 262144
325 #define Q3SURFACEPARM_PLAYERCLIP 524288
326 #define Q3SURFACEPARM_SKY 1048576
327 #define Q3SURFACEPARM_SLICK 2197152
328 #define Q3SURFACEPARM_SLIME 4194304
329 #define Q3SURFACEPARM_STRUCTURAL 8388608
330 #define Q3SURFACEPARM_TRANS 16777216
331 #define Q3SURFACEPARM_WATER 33554432
333 typedef struct q3mtexture_s
335 char name[Q3PATHLENGTH];
346 typedef struct q3mnode_s
348 //this part shared between node and leaf
349 struct mplane_s *plane; // != NULL
350 struct q3mnode_s *parent;
353 // this part unique to nodes
354 struct q3mnode_s *children[2];
358 typedef struct q3mleaf_s
360 //this part shared between node and leaf
361 struct mplane_s *plane; // == NULL
362 struct q3mnode_s *parent;
365 // this part unique to leafs
369 struct q3mface_s **firstleafface;
371 struct q3mbrush_s **firstleafbrush;
375 typedef struct q3mmodel_s
380 struct q3mface_s *firstface;
382 struct q3mbrush_s *firstbrush;
386 typedef struct q3mbrush_s
388 struct colbrushf_s *colbrushf;
390 struct q3mbrushside_s *firstbrushside;
391 struct q3mtexture_s *texture;
395 typedef struct q3mbrushside_s
397 struct mplane_s *plane;
398 struct q3mtexture_s *texture;
402 typedef struct q3meffect_s
404 char shadername[Q3PATHLENGTH];
405 struct q3mbrush_s *brush;
406 int unknown; // 5 or -1
410 typedef struct q3mface_s
412 struct q3mtexture_s *texture;
413 struct q3meffect_s *effect;
414 rtexture_t *lightmaptexture;
415 int collisions; // performs per triangle collisions on this surface
416 int collisionmarkframe; // don't collide twice in one trace
421 // used for processing
423 // (world only) visframe == r_framecount means it is visible this frame
425 // bounding box for culling
431 float *data_vertex3f;
432 float *data_texcoordtexture2f;
433 float *data_texcoordlightmap2f;
434 float *data_svector3f;
435 float *data_tvector3f;
436 float *data_normal3f;
439 int *data_neighbor3i;
441 // temporary use by light processing
442 int lighttemp_castshadow;
446 typedef struct model_brushq3_s
448 // if non-zero this is a submodel
449 // (this is the number of the submodel, an index into data_models)
453 q3mtexture_t *data_textures;
456 mplane_t *data_planes;
459 q3mnode_t *data_nodes;
462 q3mleaf_t *data_leafs;
465 q3mbrush_t **data_leafbrushes;
468 q3mface_t **data_leaffaces;
471 q3mmodel_t *data_models;
472 // each submodel gets its own model struct so this is different for each.
473 q3mmodel_t *data_thismodel;
476 q3mbrush_t *data_brushes;
479 q3mbrushside_t *data_brushsides;
482 float *data_vertex3f;
483 float *data_texcoordtexture2f;
484 float *data_texcoordlightmap2f;
485 float *data_svector3f;
486 float *data_tvector3f;
487 float *data_normal3f;
492 int *data_neighbor3i;
495 q3meffect_t *data_effects;
498 q3mface_t *data_faces;
502 rtexture_t **data_lightmaps;
504 // voxel light data with directional shading
506 q3dlightgrid_t *data_lightgrid;
507 // size of each cell (may vary by map, typically 64 64 128)
508 float num_lightgrid_cellsize[3];
509 // 1.0 / num_lightgrid_cellsize
510 float num_lightgrid_scale[3];
511 // dimensions of the world model in lightgrid cells
512 int num_lightgrid_imins[3];
513 int num_lightgrid_imaxs[3];
514 int num_lightgrid_isize[3];
516 int num_lightgrid_dimensions[3];
517 // transform modelspace coordinates to lightgrid index
518 matrix4x4_t num_lightgrid_indexfromworld;
522 int num_pvsclusterbytes;
523 unsigned char *data_pvsclusters;
525 //pvschain = model->brushq3.data_pvsclusters + mycluster * model->brushq3.num_pvsclusterbytes;
526 //if (pvschain[thatcluster >> 3] & (1 << (thatcluster & 7)))
530 typedef struct model_s
532 // name and path of model, for example "progs/player.mdl"
533 char name[MAX_QPATH];
534 // model needs to be loaded if this is true
536 // set if the model is used in current map, models which are not, are purged
538 // true if this is the world model (I.E. defines what sky to use, and may contain submodels)
539 qboolean isworldmodel;
540 // CRC of the file this model was loaded from, to reload if changed
542 // mod_brush, mod_alias, mod_sprite
544 // memory pool for allocations
546 // all models use textures...
547 rtexturepool_t *texturepool;
548 // flags from the model file
550 // engine calculated flags, ones that can not be set in the file
552 // LordHavoc: if true (normally only for sprites) the model/sprite/bmodel is always rendered fullbright
554 // number of QC accessible frame(group)s in the model
556 // number of QC accessible skin(group)s in the model
558 // whether to randomize animated framegroups
560 // bounding box at angles '0 0 0'
561 vec3_t normalmins, normalmaxs;
562 // bounding box if yaw angle is not 0, but pitch and roll are
563 vec3_t yawmins, yawmaxs;
564 // bounding box if pitch or roll are used
565 vec3_t rotatedmins, rotatedmaxs;
566 // sphere radius, usable at any angles
568 // squared sphere radius for easier comparisons
570 // skin animation info
571 animscene_t *skinscenes; // [numskins]
572 // skin animation info
573 animscene_t *animscenes; // [numframes]
574 // draw the model's sky polygons (only used by brush models)
575 void(*DrawSky)(struct entity_render_s *ent);
576 // draw the model using lightmap/dlight shading
577 void(*Draw)(struct entity_render_s *ent);
578 // draw a shadow volume for the model based on light source
579 void(*DrawShadowVolume)(struct entity_render_s *ent, vec3_t relativelightorigin, float lightradius);
580 // draw the lighting on a model (through stencil)
581 void(*DrawLight)(struct entity_render_s *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltolight, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz, rtexture_t *lightcubemap);
582 // trace a box against this model
583 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);
584 // fields belonging to each type of model
586 model_sprite_t sprite;
588 model_brushq1_t brushq1;
589 /* MSVC can't handle an empty struct, so this is commented out for now
590 model_brushq2_t brushq2;
592 model_brushq3_t brushq3;
593 // skin files can have different tags for each skin
594 overridetagnameset_t *data_overridetagnamesforskin;
595 // flags this model for offseting sounds to the model center (used by brush models)
600 //============================================================================
602 // this can be used for anything without a valid texture
603 extern rtexture_t *r_notexture;
604 #define NUM_DETAILTEXTURES 1
605 extern rtexture_t *mod_shared_detailtextures[NUM_DETAILTEXTURES];
606 // every texture must be in a pool...
607 extern rtexturepool_t *mod_shared_texturepool;
609 extern rtexture_t *mod_shared_distorttexture[64];
612 extern model_t *loadmodel;
613 extern qbyte *mod_base;
614 // sky/water subdivision
615 //extern cvar_t gl_subdivide_size;
616 // texture fullbrights
617 extern cvar_t r_fullbrights;
619 void Mod_Init (void);
620 void Mod_CheckLoaded (model_t *mod);
621 void Mod_ClearAll (void);
622 model_t *Mod_FindName (const char *name);
623 model_t *Mod_ForName (const char *name, qboolean crash, qboolean checkdisk, qboolean isworldmodel);
624 void Mod_TouchModel (const char *name);
625 void Mod_UnloadModel (model_t *mod);
627 void Mod_ClearUsed(void);
628 void Mod_PurgeUnused(void);
629 void Mod_LoadModels(void);
631 extern model_t *loadmodel;
632 extern char loadname[32]; // for hunk tags
634 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles);
635 void Mod_ValidateElements(const int *elements, int numtriangles, int numverts, const char *filename, int fileline);
636 void Mod_BuildTextureVectorsAndNormals(int numverts, int numtriangles, const float *vertex, const float *texcoord, const int *elements, float *svectors, float *tvectors, float *normals);
638 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);
639 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors);
640 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f);
641 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f);
642 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);
643 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);
644 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, int light, int neighbors);
645 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius);
646 void Mod_ShadowMesh_Free(shadowmesh_t *mesh);
648 int Mod_LoadSkinFrame(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture);
649 int Mod_LoadSkinFrame_Internal(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture, qbyte *skindata, int width, int height);
651 // used for talking to the QuakeC mainly
652 int Mod_Q1BSP_NativeContentsFromSuperContents(struct model_s *model, int supercontents);
653 int Mod_Q1BSP_SuperContentsFromNativeContents(struct model_s *model, int nativecontents);
655 extern cvar_t r_mipskins;
657 typedef struct skinfileitem_s
659 struct skinfileitem_s *next;
660 char name[MAX_QPATH];
661 char replacement[MAX_QPATH];
665 typedef struct skinfile_s
667 struct skinfile_s *next;
668 skinfileitem_t *items;
672 skinfile_t *Mod_LoadSkinFiles(void);
673 void Mod_FreeSkinFiles(skinfile_t *skinfile);
674 int Mod_CountSkinFiles(skinfile_t *skinfile);
676 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f);