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 *stain; // inverse modulate with background (used for decals and such)
51 rtexture_t *merged; // original texture without glow
52 rtexture_t *base; // original texture without pants/shirt/glow
53 rtexture_t *pants; // pants only (in greyscale)
54 rtexture_t *shirt; // shirt only (in greyscale)
55 rtexture_t *nmap; // normalmap (bumpmap for dot3)
56 rtexture_t *gloss; // glossmap (for dot3)
57 rtexture_t *detail; // detail texture (silly bumps for non-dot3)
58 rtexture_t *glow; // glow only (fullbrights)
59 rtexture_t *fog; // alpha of the base texture (if not opaque)
65 typedef struct overridetagname_s
71 // a replacement set of tag names, per skin
72 typedef struct overridetagnameset_s
74 int num_overridetagnames;
75 overridetagname_t *data_overridetagnames;
79 #define SHADOWMESHVERTEXHASH 1024
80 typedef struct shadowmeshvertexhash_s
82 struct shadowmeshvertexhash_s *next;
84 shadowmeshvertexhash_t;
86 typedef struct shadowmesh_s
89 struct shadowmesh_s *next;
90 // used for light mesh (NULL on shadow mesh)
91 rtexture_t *map_diffuse;
92 rtexture_t *map_specular;
93 rtexture_t *map_normal;
95 int numverts, maxverts;
96 int numtriangles, maxtriangles;
99 // used for light mesh (NULL on shadow mesh)
106 // used for shadow mesh (NULL on light mesh)
108 // these are NULL after Mod_ShadowMesh_Finish is performed, only used
109 // while building meshes
110 shadowmeshvertexhash_t **vertexhashtable, *vertexhashentries;
115 #include "matrixlib.h"
117 #include "model_brush.h"
118 #include "model_sprite.h"
119 #include "model_alias.h"
121 typedef struct model_alias_s
123 // LordHavoc: Q2/ZYM model support
126 // mdl/md2/md3 models are the same after loading
128 aliasmesh_t *aliasdata_meshes;
131 int aliasnum_tagframes;
132 aliastag_t *aliasdata_tags;
134 // for Zymotic models
140 float *zymdata_texcoords;
141 rtexture_t **zymdata_textures;
142 qbyte *zymdata_trizone;
143 zymbone_t *zymdata_bones;
144 unsigned int *zymdata_vertbonecounts;
145 zymvertex_t *zymdata_verts;
146 unsigned int *zymdata_renderlist;
147 float *zymdata_poses;
151 typedef struct model_sprite_s
154 mspriteframe_t *sprdata_frames;
160 typedef struct model_brush_s
162 // true if this model is a HalfLife .bsp file
164 // string of entity definitions (.map format)
166 // number of submodels in this map (just used by server to know how many
167 // submodels to load)
172 int num_pvsclusterbytes;
173 unsigned char *data_pvsclusters;
175 //pvschain = model->brush.data_pvsclusters + mycluster * model->brush.num_pvsclusterbytes;
176 //if (pvschain[thatcluster >> 3] & (1 << (thatcluster & 7)))
178 // a mesh containing all shadow casting geometry for the whole model (including submodels), portions of this are referenced by each surface's num_firstshadowmeshtriangle
179 shadowmesh_t *shadowmesh;
182 int (*SuperContentsFromNativeContents)(struct model_s *model, int nativecontents);
183 int (*NativeContentsFromSuperContents)(struct model_s *model, int supercontents);
184 qbyte *(*GetPVS)(struct model_s *model, const vec3_t p);
185 int (*FatPVS)(struct model_s *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbufferlength);
186 int (*BoxTouchingPVS)(struct model_s *model, const qbyte *pvs, const vec3_t mins, const vec3_t maxs);
187 void (*LightPoint)(struct model_s *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal);
188 void (*FindNonSolidLocation)(struct model_s *model, const vec3_t in, vec3_t out, vec_t radius);
189 // these are actually only found on brushq1, but NULL is handled gracefully
190 void (*AmbientSoundLevelsForPoint)(struct model_s *model, const vec3_t p, qbyte *out, int outsize);
191 void (*RoundUpToHullSize)(struct model_s *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs);
197 typedef struct model_brushq1_s
199 // lightmap format, set to r_lightmaprgba when model is loaded
207 // number of actual leafs (including 0 which is solid)
209 // visible leafs, not counting 0 (solid)
226 msurface_t *surfaces;
227 int *surfacevisframes;
228 int *surfacepvsframes;
229 msurface_t *surfacepvsnext;
230 surfmesh_t *entiremesh;
236 dclipnode_t *clipnodes;
241 hull_t hulls[MAX_MAP_HULLS];
246 int num_compressedpvs;
247 qbyte *data_compressedpvs;
256 mvertex_t *portalpoints;
261 // pvs visibility marking
262 mleaf_t *pvsviewleaf;
263 int pvsviewleafnovis;
265 mleaf_t *pvsleafchain;
267 int pvssurflistlength;
268 // these get rebuilt as the player moves around if this is the world,
269 // otherwise they are left alone (no pvs for bmodels)
270 msurface_t ***pvstexturechains;
271 msurface_t **pvstexturechainsbuffer;
272 int *pvstexturechainslength;
274 // lightmap update chains for light styles
277 int *light_stylevalue;
278 msurface_t ***light_styleupdatechains;
279 msurface_t **light_styleupdatechainsbuffer;
281 mleaf_t *(*PointInLeaf)(struct model_s *model, const float *p);
282 void (*BuildPVSTextureChains)(struct model_s *model);
286 /* MSVC can't compile empty structs, so this is commented out for now
287 typedef struct model_brushq2_s
293 // surfaceflags from bsp
294 #define Q3SURFACEFLAG_NODAMAGE 1
295 #define Q3SURFACEFLAG_SLICK 2
296 #define Q3SURFACEFLAG_SKY 4
297 #define Q3SURFACEFLAG_LADDER 8
298 #define Q3SURFACEFLAG_NOIMPACT 16
299 #define Q3SURFACEFLAG_NOMARKS 32
300 #define Q3SURFACEFLAG_FLESH 64
301 #define Q3SURFACEFLAG_NODRAW 128
302 #define Q3SURFACEFLAG_HINT 256
303 #define Q3SURFACEFLAG_SKIP 512
304 #define Q3SURFACEFLAG_NOLIGHTMAP 1024
305 #define Q3SURFACEFLAG_POINTLIGHT 2048
306 #define Q3SURFACEFLAG_METALSTEPS 4096
307 #define Q3SURFACEFLAG_NOSTEPS 8192
308 #define Q3SURFACEFLAG_NONSOLID 16384
309 #define Q3SURFACEFLAG_LIGHTFILTER 32768
310 #define Q3SURFACEFLAG_ALPHASHADOW 65536
311 #define Q3SURFACEFLAG_NODLIGHT 131072
312 #define Q3SURFACEFLAG_DUST 262144
314 // surfaceparms from shaders
315 #define Q3SURFACEPARM_ALPHASHADOW 1
316 #define Q3SURFACEPARM_AREAPORTAL 2
317 #define Q3SURFACEPARM_CLUSTERPORTAL 4
318 #define Q3SURFACEPARM_DETAIL 8
319 #define Q3SURFACEPARM_DONOTENTER 16
320 #define Q3SURFACEPARM_FOG 32
321 #define Q3SURFACEPARM_LAVA 64
322 #define Q3SURFACEPARM_LIGHTFILTER 128
323 #define Q3SURFACEPARM_METALSTEPS 256
324 #define Q3SURFACEPARM_NODAMAGE 512
325 #define Q3SURFACEPARM_NODLIGHT 1024
326 #define Q3SURFACEPARM_NODRAW 2048
327 #define Q3SURFACEPARM_NODROP 4096
328 #define Q3SURFACEPARM_NOIMPACT 8192
329 #define Q3SURFACEPARM_NOLIGHTMAP 16384
330 #define Q3SURFACEPARM_NOMARKS 32768
331 #define Q3SURFACEPARM_NOMIPMAPS 65536
332 #define Q3SURFACEPARM_NONSOLID 131072
333 #define Q3SURFACEPARM_ORIGIN 262144
334 #define Q3SURFACEPARM_PLAYERCLIP 524288
335 #define Q3SURFACEPARM_SKY 1048576
336 #define Q3SURFACEPARM_SLICK 2197152
337 #define Q3SURFACEPARM_SLIME 4194304
338 #define Q3SURFACEPARM_STRUCTURAL 8388608
339 #define Q3SURFACEPARM_TRANS 16777216
340 #define Q3SURFACEPARM_WATER 33554432
342 typedef struct q3mtexture_s
344 char name[Q3PATHLENGTH];
355 typedef struct q3mnode_s
357 //this part shared between node and leaf
358 struct mplane_s *plane; // != NULL
359 struct q3mnode_s *parent;
362 // this part unique to nodes
363 struct q3mnode_s *children[2];
367 typedef struct q3mleaf_s
369 //this part shared between node and leaf
370 struct mplane_s *plane; // == NULL
371 struct q3mnode_s *parent;
374 // this part unique to leafs
378 struct q3mface_s **firstleafface;
380 struct q3mbrush_s **firstleafbrush;
384 typedef struct q3mmodel_s
389 struct q3mface_s *firstface;
391 struct q3mbrush_s *firstbrush;
395 typedef struct q3mbrush_s
397 struct colbrushf_s *colbrushf;
399 struct q3mbrushside_s *firstbrushside;
400 struct q3mtexture_s *texture;
404 typedef struct q3mbrushside_s
406 struct mplane_s *plane;
407 struct q3mtexture_s *texture;
411 typedef struct q3meffect_s
413 char shadername[Q3PATHLENGTH];
414 struct q3mbrush_s *brush;
415 int unknown; // 5 or -1
419 typedef struct q3mface_s
421 struct q3mtexture_s *texture;
422 struct q3meffect_s *effect;
423 rtexture_t *lightmaptexture;
424 int collisions; // performs per triangle collisions on this surface
425 int collisionmarkframe; // don't collide twice in one trace
430 // used for processing
432 // (world only) visframe == r_framecount means it is visible this frame
434 // bounding box for culling
440 float *data_vertex3f;
441 float *data_texcoordtexture2f;
442 float *data_texcoordlightmap2f;
443 float *data_svector3f;
444 float *data_tvector3f;
445 float *data_normal3f;
448 int *data_neighbor3i;
450 int num_collisionvertices;
451 int num_collisiontriangles;
452 float *data_collisionvertex3f;
453 int *data_collisionelement3i;
455 // index into model->brush.shadowmesh
456 int num_firstshadowmeshtriangle;
458 // used for shadow volume generation
461 // temporary use by light processing
462 int lighttemp_castshadow;
466 typedef struct model_brushq3_s
468 // if non-zero this is a submodel
469 // (this is the number of the submodel, an index into data_models)
473 q3mtexture_t *data_textures;
476 mplane_t *data_planes;
479 q3mnode_t *data_nodes;
482 q3mleaf_t *data_leafs;
485 q3mbrush_t **data_leafbrushes;
488 q3msurface_t **data_leaffaces;
491 q3mmodel_t *data_models;
492 // each submodel gets its own model struct so this is different for each.
493 q3mmodel_t *data_thismodel;
496 q3mbrush_t *data_brushes;
499 q3mbrushside_t *data_brushsides;
502 float *data_vertex3f;
503 float *data_texcoordtexture2f;
504 float *data_texcoordlightmap2f;
505 float *data_svector3f;
506 float *data_tvector3f;
507 float *data_normal3f;
512 int *data_neighbor3i;
515 q3meffect_t *data_effects;
518 q3msurface_t *data_faces;
522 rtexture_t **data_lightmaps;
524 // voxel light data with directional shading
526 q3dlightgrid_t *data_lightgrid;
527 // size of each cell (may vary by map, typically 64 64 128)
528 float num_lightgrid_cellsize[3];
529 // 1.0 / num_lightgrid_cellsize
530 float num_lightgrid_scale[3];
531 // dimensions of the world model in lightgrid cells
532 int num_lightgrid_imins[3];
533 int num_lightgrid_imaxs[3];
534 int num_lightgrid_isize[3];
536 int num_lightgrid_dimensions[3];
537 // transform modelspace coordinates to lightgrid index
538 matrix4x4_t num_lightgrid_indexfromworld;
542 typedef struct model_s
544 // name and path of model, for example "progs/player.mdl"
545 char name[MAX_QPATH];
546 // model needs to be loaded if this is true
548 // set if the model is used in current map, models which are not, are purged
550 // true if this is the world model (I.E. defines what sky to use, and may contain submodels)
551 qboolean isworldmodel;
552 // CRC of the file this model was loaded from, to reload if changed
554 // mod_brush, mod_alias, mod_sprite
556 // memory pool for allocations
558 // all models use textures...
559 rtexturepool_t *texturepool;
560 // flags from the model file
562 // engine calculated flags, ones that can not be set in the file
564 // LordHavoc: if true (normally only for sprites) the model/sprite/bmodel is always rendered fullbright
566 // number of QC accessible frame(group)s in the model
568 // number of QC accessible skin(group)s in the model
570 // whether to randomize animated framegroups
572 // bounding box at angles '0 0 0'
573 vec3_t normalmins, normalmaxs;
574 // bounding box if yaw angle is not 0, but pitch and roll are
575 vec3_t yawmins, yawmaxs;
576 // bounding box if pitch or roll are used
577 vec3_t rotatedmins, rotatedmaxs;
578 // sphere radius, usable at any angles
580 // squared sphere radius for easier comparisons
582 // skin animation info
583 animscene_t *skinscenes; // [numskins]
584 // skin animation info
585 animscene_t *animscenes; // [numframes]
586 // range of surface numbers in this (sub)model
587 int firstmodelsurface;
588 int nummodelsurfaces;
589 // list of surface numbers in this (sub)model
591 // draw the model's sky polygons (only used by brush models)
592 void(*DrawSky)(struct entity_render_s *ent);
593 // draw the model using lightmap/dlight shading
594 void(*Draw)(struct entity_render_s *ent);
595 // gathers info on which clusters and surfaces are lit by light, as well as calculating a bounding box
596 void(*GetLightInfo)(struct entity_render_s *ent, vec3_t relativelightorigin, float lightradius, vec3_t outmins, vec3_t outmaxs, int *outclusterlist, qbyte *outclusterpvs, int *outnumclusterspointer, int *outsurfacelist, qbyte *outsurfacepvs, int *outnumsurfacespointer);
597 // draw a shadow volume for the model based on light source
598 void(*DrawShadowVolume)(struct entity_render_s *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist);
599 // draw the lighting on a model (through stencil)
600 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, int numsurfaces, const int *surfacelist);
601 // trace a box against this model
602 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);
603 // fields belonging to each type of model
605 model_sprite_t sprite;
607 model_brushq1_t brushq1;
608 /* MSVC can't handle an empty struct, so this is commented out for now
609 model_brushq2_t brushq2;
611 model_brushq3_t brushq3;
612 // skin files can have different tags for each skin
613 overridetagnameset_t *data_overridetagnamesforskin;
614 // flags this model for offseting sounds to the model center (used by brush models)
619 //============================================================================
621 // this can be used for anything without a valid texture
622 extern rtexture_t *r_notexture;
623 #define NUM_DETAILTEXTURES 1
624 extern rtexture_t *mod_shared_detailtextures[NUM_DETAILTEXTURES];
625 // every texture must be in a pool...
626 extern rtexturepool_t *mod_shared_texturepool;
628 extern rtexture_t *mod_shared_distorttexture[64];
631 extern model_t *loadmodel;
632 extern qbyte *mod_base;
633 // sky/water subdivision
634 //extern cvar_t gl_subdivide_size;
635 // texture fullbrights
636 extern cvar_t r_fullbrights;
638 void Mod_Init (void);
639 void Mod_CheckLoaded (model_t *mod);
640 void Mod_ClearAll (void);
641 model_t *Mod_FindName (const char *name);
642 model_t *Mod_ForName (const char *name, qboolean crash, qboolean checkdisk, qboolean isworldmodel);
643 void Mod_TouchModel (const char *name);
644 void Mod_UnloadModel (model_t *mod);
646 void Mod_ClearUsed(void);
647 void Mod_PurgeUnused(void);
648 void Mod_LoadModels(void);
650 extern model_t *loadmodel;
651 extern char loadname[32]; // for hunk tags
653 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles);
654 void Mod_ValidateElements(const int *elements, int numtriangles, int numverts, const char *filename, int fileline);
655 void Mod_BuildTextureVectorsAndNormals(int numverts, int numtriangles, const float *vertex, const float *texcoord, const int *elements, float *svectors, float *tvectors, float *normals);
657 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);
658 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors);
659 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f);
660 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f);
661 void Mod_ShadowMesh_AddMesh(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, const float *vertex3f, const float *svector3f, const float *tvector3f, const float *normal3f, const float *texcoord2f, int numtris, const int *element3i);
662 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);
663 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, int light, int neighbors);
664 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius);
665 void Mod_ShadowMesh_Free(shadowmesh_t *mesh);
667 int Mod_LoadSkinFrame(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture);
668 int Mod_LoadSkinFrame_Internal(skinframe_t *skinframe, char *basename, int textureflags, int loadpantsandshirt, int usedetailtexture, int loadglowtexture, qbyte *skindata, int width, int height);
670 // used for talking to the QuakeC mainly
671 int Mod_Q1BSP_NativeContentsFromSuperContents(struct model_s *model, int supercontents);
672 int Mod_Q1BSP_SuperContentsFromNativeContents(struct model_s *model, int nativecontents);
674 extern cvar_t r_mipskins;
676 typedef struct skinfileitem_s
678 struct skinfileitem_s *next;
679 char name[MAX_QPATH];
680 char replacement[MAX_QPATH];
684 typedef struct skinfile_s
686 struct skinfile_s *next;
687 skinfileitem_t *items;
691 skinfile_t *Mod_LoadSkinFiles(void);
692 void Mod_FreeSkinFiles(skinfile_t *skinfile);
693 int Mod_CountSkinFiles(skinfile_t *skinfile);
695 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f);