8 |
|
#include "standard.h" |
9 |
|
#include "octree.h" |
10 |
|
#include "object.h" |
11 |
+ |
#include "otypes.h" |
12 |
|
#include "mesh.h" |
12 |
– |
#include "lookup.h" |
13 |
|
|
14 |
|
/* An encoded mesh vertex */ |
15 |
|
typedef struct { |
16 |
|
int fl; |
17 |
|
uint4 xyz[3]; |
18 |
|
int4 norm; |
19 |
< |
int4 uv[2]; |
19 |
> |
uint4 uv[2]; |
20 |
|
} MCVERT; |
21 |
|
|
22 |
|
#define MPATCHBLKSIZ 128 /* patch allocation block size */ |
135 |
|
|
136 |
|
|
137 |
|
int |
138 |
< |
getmeshtrivid(tvid, mp, ti) /* get triangle vertex ID's */ |
139 |
< |
int4 tvid[3]; |
140 |
< |
register MESH *mp; |
141 |
< |
OBJECT ti; |
138 |
> |
getmeshtrivid(tvid, mo, mp, ti) /* get triangle vertex ID's */ |
139 |
> |
int4 tvid[3]; |
140 |
> |
OBJECT *mo; |
141 |
> |
MESH *mp; |
142 |
> |
OBJECT ti; |
143 |
|
{ |
144 |
|
int pn = ti >> 10; |
145 |
+ |
MESHPATCH *pp; |
146 |
|
|
147 |
|
if (pn >= mp->npatches) |
148 |
|
return(0); |
149 |
+ |
pp = &mp->patch[pn]; |
150 |
|
ti &= 0x3ff; |
151 |
|
if (!(ti & 0x200)) { /* local triangle */ |
152 |
|
struct PTri *tp; |
153 |
< |
if (ti >= mp->patch[pn].ntris) |
153 |
> |
if (ti >= pp->ntris) |
154 |
|
return(0); |
155 |
< |
tp = &mp->patch[pn].tri[ti]; |
155 |
> |
tp = &pp->tri[ti]; |
156 |
|
tvid[0] = tvid[1] = tvid[2] = pn << 8; |
157 |
|
tvid[0] |= tp->v1; |
158 |
|
tvid[1] |= tp->v2; |
159 |
|
tvid[2] |= tp->v3; |
160 |
+ |
if (pp->trimat != NULL) |
161 |
+ |
*mo = pp->trimat[ti]; |
162 |
+ |
else |
163 |
+ |
*mo = pp->solemat; |
164 |
+ |
if (*mo != OVOID) |
165 |
+ |
*mo += mp->mat0; |
166 |
|
return(1); |
167 |
|
} |
168 |
|
ti &= ~0x200; |
169 |
|
if (!(ti & 0x100)) { /* single link vertex */ |
170 |
|
struct PJoin1 *tp1; |
171 |
< |
if (ti >= mp->patch[pn].nj1tris) |
171 |
> |
if (ti >= pp->nj1tris) |
172 |
|
return(0); |
173 |
< |
tp1 = &mp->patch[pn].j1tri[ti]; |
173 |
> |
tp1 = &pp->j1tri[ti]; |
174 |
|
tvid[0] = tp1->v1j; |
175 |
|
tvid[1] = tvid[2] = pn << 8; |
176 |
|
tvid[1] |= tp1->v2; |
177 |
|
tvid[2] |= tp1->v3; |
178 |
+ |
if ((*mo = tp1->mat) != OVOID) |
179 |
+ |
*mo += mp->mat0; |
180 |
|
return(1); |
181 |
|
} |
182 |
|
ti &= ~0x100; |
183 |
|
{ /* double link vertex */ |
184 |
|
struct PJoin2 *tp2; |
185 |
< |
if (ti >= mp->patch[pn].nj2tris) |
185 |
> |
if (ti >= pp->nj2tris) |
186 |
|
return(0); |
187 |
< |
tp2 = &mp->patch[pn].j2tri[ti]; |
187 |
> |
tp2 = &pp->j2tri[ti]; |
188 |
|
tvid[0] = tp2->v1j; |
189 |
|
tvid[1] = tp2->v2j; |
190 |
|
tvid[2] = pn << 8 | tp2->v3; |
191 |
+ |
if ((*mo = tp2->mat) != OVOID) |
192 |
+ |
*mo += mp->mat0; |
193 |
|
} |
194 |
|
return(1); |
195 |
|
} |
197 |
|
|
198 |
|
int |
199 |
|
getmeshvert(vp, mp, vid, what) /* get triangle vertex from ID */ |
200 |
< |
MESHVERT *vp; |
201 |
< |
register MESH *mp; |
202 |
< |
int4 vid; |
203 |
< |
int what; |
200 |
> |
MESHVERT*vp; |
201 |
> |
MESH *mp; |
202 |
> |
int4 vid; |
203 |
> |
int what; |
204 |
|
{ |
205 |
|
int pn = vid >> 8; |
206 |
|
MESHPATCH *pp; |
230 |
|
/* get (u,v) */ |
231 |
|
if (what & MT_UV && pp->uv != NULL && pp->uv[vid][0]) { |
232 |
|
for (i = 0; i < 2; i++) |
233 |
< |
vp->uv[i] = mp->uvlim[i][0] + |
234 |
< |
(mp->uvlim[i][1] - mp->uvlim[i][0])* |
233 |
> |
vp->uv[i] = mp->uvlim[0][i] + |
234 |
> |
(mp->uvlim[1][i] - mp->uvlim[0][i])* |
235 |
|
(pp->uv[vid][i] + .5)*(1./4294967296.); |
236 |
|
vp->fl |= MT_UV; |
237 |
|
} |
239 |
|
} |
240 |
|
|
241 |
|
|
242 |
+ |
OBJREC * |
243 |
+ |
getmeshpseudo(mp, mo) /* get mesh pseudo object for material */ |
244 |
+ |
MESH *mp; |
245 |
+ |
OBJECT mo; |
246 |
+ |
{ |
247 |
+ |
if (mo < mp->mat0 || mo >= mp->mat0 + mp->nmats) |
248 |
+ |
error(INTERNAL, "modifier out of range in getmeshpseudo"); |
249 |
+ |
if (mp->pseudo == NULL) { |
250 |
+ |
register int i; |
251 |
+ |
mp->pseudo = (OBJREC *)calloc(mp->nmats, sizeof(OBJREC)); |
252 |
+ |
if (mp->pseudo == NULL) |
253 |
+ |
error(SYSTEM, "out of memory in getmeshpseudo"); |
254 |
+ |
for (i = mp->nmats; i--; ) { |
255 |
+ |
mp->pseudo[i].omod = mp->mat0 + i; |
256 |
+ |
mp->pseudo[i].otype = OBJ_FACE; |
257 |
+ |
mp->pseudo[i].oname = "M-Tri"; |
258 |
+ |
} |
259 |
+ |
} |
260 |
+ |
return(&mp->pseudo[mo - mp->mat0]); |
261 |
+ |
} |
262 |
+ |
|
263 |
+ |
|
264 |
|
int |
265 |
< |
getmeshtri(tv, mp, ti, what) /* get triangle vertices */ |
265 |
> |
getmeshtri(tv, mo, mp, ti, wha) /* get triangle vertices */ |
266 |
|
MESHVERT tv[3]; |
267 |
+ |
OBJECT *mo; |
268 |
|
MESH *mp; |
269 |
|
OBJECT ti; |
270 |
< |
int what; |
270 |
> |
int wha; |
271 |
|
{ |
272 |
|
int4 tvid[3]; |
273 |
|
|
274 |
< |
if (!getmeshtrivid(tvid, mp, ti)) |
274 |
> |
if (!getmeshtrivid(tvid, mo, mp, ti)) |
275 |
|
return(0); |
276 |
|
|
277 |
< |
getmeshvert(&tv[0], mp, tvid[0], what); |
278 |
< |
getmeshvert(&tv[1], mp, tvid[1], what); |
279 |
< |
getmeshvert(&tv[2], mp, tvid[2], what); |
277 |
> |
getmeshvert(&tv[0], mp, tvid[0], wha); |
278 |
> |
getmeshvert(&tv[1], mp, tvid[1], wha); |
279 |
> |
getmeshvert(&tv[2], mp, tvid[2], wha); |
280 |
|
|
281 |
|
return(tv[0].fl & tv[1].fl & tv[2].fl); |
282 |
|
} |
287 |
|
register MESH *mp; |
288 |
|
MESHVERT *vp; |
289 |
|
{ |
254 |
– |
LUTAB *ltp; |
290 |
|
LUENT *lvp; |
291 |
|
MCVERT cv; |
292 |
|
register int i; |
307 |
|
cv.norm = encodedir(vp->n); |
308 |
|
if (vp->fl & MT_UV) |
309 |
|
for (i = 0; i < 2; i++) { |
310 |
< |
if (vp->uv[i] <= mp->uvlim[i][0]) |
310 |
> |
if (vp->uv[i] <= mp->uvlim[0][i]) |
311 |
|
return(-1); |
312 |
< |
if (vp->uv[i] >= mp->uvlim[i][1]) |
312 |
> |
if (vp->uv[i] >= mp->uvlim[1][i]) |
313 |
|
return(-1); |
314 |
|
cv.uv[i] = (uint4)(4294967296. * |
315 |
< |
(vp->uv[i] - mp->uvlim[i][0]) / |
316 |
< |
(mp->uvlim[i][1] - mp->uvlim[i][0])); |
315 |
> |
(vp->uv[i] - mp->uvlim[0][i]) / |
316 |
> |
(mp->uvlim[1][i] - mp->uvlim[0][i])); |
317 |
|
} |
318 |
|
cv.fl = vp->fl; |
319 |
< |
ltp = (LUTAB *)mp->cdata; /* get lookup table */ |
320 |
< |
if (ltp == NULL) { |
321 |
< |
ltp = (LUTAB *)calloc(1, sizeof(LUTAB)); |
322 |
< |
if (ltp == NULL) |
319 |
> |
if (mp->lut.tsiz == 0) { |
320 |
> |
mp->lut.hashf = cvhash; |
321 |
> |
mp->lut.keycmp = cvcmp; |
322 |
> |
mp->lut.freek = free; |
323 |
> |
if (!lu_init(&mp->lut, 50000)) |
324 |
|
goto nomem; |
289 |
– |
ltp->hashf = cvhash; |
290 |
– |
ltp->keycmp = cvcmp; |
291 |
– |
ltp->freek = free; |
292 |
– |
if (!lu_init(ltp, 50000)) |
293 |
– |
goto nomem; |
294 |
– |
mp->cdata = (char *)ltp; |
325 |
|
} |
326 |
|
/* find entry */ |
327 |
< |
lvp = lu_find(ltp, (char *)&cv); |
327 |
> |
lvp = lu_find(&mp->lut, (char *)&cv); |
328 |
|
if (lvp == NULL) |
329 |
|
goto nomem; |
330 |
|
if (lvp->key == NULL) { |
348 |
|
bzero((void *)(mp->patch + mp->npatches), |
349 |
|
MPATCHBLKSIZ*sizeof(MESHPATCH)); |
350 |
|
} |
351 |
< |
if (mp->npatches++ >= 1<<20) |
351 |
> |
if (mp->npatches++ >= 1L<<22) |
352 |
|
error(INTERNAL, "too many mesh patches"); |
353 |
|
} |
354 |
|
pp = &mp->patch[mp->npatches-1]; |
389 |
|
|
390 |
|
|
391 |
|
OBJECT |
392 |
< |
addmeshtri(mp, tv) /* add a new mesh triangle */ |
392 |
> |
addmeshtri(mp, tv, mo) /* add a new mesh triangle */ |
393 |
|
MESH *mp; |
394 |
|
MESHVERT tv[3]; |
395 |
+ |
OBJECT mo; |
396 |
|
{ |
397 |
|
int4 vid[3], t; |
398 |
|
int pn[3], i; |
406 |
|
return(OVOID); |
407 |
|
pn[i] = vid[i] >> 8; |
408 |
|
} |
409 |
+ |
/* normalize material index */ |
410 |
+ |
if (mo != OVOID) |
411 |
+ |
if ((mo -= mp->mat0) >= mp->nmats) |
412 |
+ |
mp->nmats = mo+1; |
413 |
+ |
else if (mo < 0) |
414 |
+ |
error(INTERNAL, "modifier range error in addmeshtri"); |
415 |
|
/* assign triangle */ |
416 |
|
if (pn[0] == pn[1] && pn[1] == pn[2]) { /* local case */ |
417 |
|
pp = &mp->patch[pn[0]]; |
421 |
|
if (pp->tri == NULL) |
422 |
|
goto nomem; |
423 |
|
} |
424 |
< |
if (pp->ntris >= 512) |
425 |
< |
goto toomany; |
426 |
< |
pp->tri[pp->ntris].v1 = vid[0] & 0xff; |
427 |
< |
pp->tri[pp->ntris].v2 = vid[1] & 0xff; |
428 |
< |
pp->tri[pp->ntris].v3 = vid[2] & 0xff; |
429 |
< |
|
430 |
< |
return(pn[0] << 10 | pp->ntris++); |
424 |
> |
if (pp->ntris < 512) { |
425 |
> |
pp->tri[pp->ntris].v1 = vid[0] & 0xff; |
426 |
> |
pp->tri[pp->ntris].v2 = vid[1] & 0xff; |
427 |
> |
pp->tri[pp->ntris].v3 = vid[2] & 0xff; |
428 |
> |
if (pp->ntris == 0) |
429 |
> |
pp->solemat = mo; |
430 |
> |
else if (pp->trimat == NULL && mo != pp->solemat) { |
431 |
> |
pp->trimat = (int2 *)malloc( |
432 |
> |
512*sizeof(int2)); |
433 |
> |
if (pp->trimat == NULL) |
434 |
> |
goto nomem; |
435 |
> |
for (i = pp->ntris; i--; ) |
436 |
> |
pp->trimat[i] = pp->solemat; |
437 |
> |
} |
438 |
> |
if (pp->trimat != NULL) |
439 |
> |
pp->trimat[pp->ntris] = mo; |
440 |
> |
return(pn[0] << 10 | pp->ntris++); |
441 |
> |
} |
442 |
|
} |
443 |
|
if (pn[0] == pn[1]) { |
444 |
< |
t = vid[2]; vid[2] = vid[0]; vid[0] = t; |
445 |
< |
i = pn[2]; pn[2] = pn[0]; pn[0] = i; |
444 |
> |
t = vid[2]; vid[2] = vid[1]; vid[1] = vid[0]; vid[0] = t; |
445 |
> |
i = pn[2]; pn[2] = pn[1]; pn[1] = pn[0]; pn[0] = i; |
446 |
|
} else if (pn[0] == pn[2]) { |
447 |
< |
t = vid[0]; vid[0] = vid[1]; vid[1] = t; |
448 |
< |
i = pn[0]; pn[0] = pn[1]; pn[1] = i; |
447 |
> |
t = vid[0]; vid[0] = vid[1]; vid[1] = vid[2]; vid[2] = t; |
448 |
> |
i = pn[0]; pn[0] = pn[1]; pn[1] = pn[2]; pn[2] = i; |
449 |
|
} |
450 |
|
if (pn[1] == pn[2]) { /* single link */ |
451 |
|
pp = &mp->patch[pn[1]]; |
455 |
|
if (pp->j1tri == NULL) |
456 |
|
goto nomem; |
457 |
|
} |
458 |
< |
if (pp->nj1tris >= 256) |
459 |
< |
goto toomany; |
460 |
< |
pp->j1tri[pp->nj1tris].v1j = pn[0] << 8 | (vid[0] & 0xff); |
461 |
< |
pp->j1tri[pp->nj1tris].v2 = vid[1] & 0xff; |
462 |
< |
pp->j1tri[pp->nj1tris].v3 = vid[2] & 0xff; |
463 |
< |
|
464 |
< |
return(pn[1] << 10 | 0x200 | pp->nj1tris++); |
458 |
> |
if (pp->nj1tris < 256) { |
459 |
> |
pp->j1tri[pp->nj1tris].v1j = vid[0]; |
460 |
> |
pp->j1tri[pp->nj1tris].v2 = vid[1] & 0xff; |
461 |
> |
pp->j1tri[pp->nj1tris].v3 = vid[2] & 0xff; |
462 |
> |
pp->j1tri[pp->nj1tris].mat = mo; |
463 |
> |
return(pn[1] << 10 | 0x200 | pp->nj1tris++); |
464 |
> |
} |
465 |
|
} |
466 |
|
/* double link */ |
467 |
|
pp = &mp->patch[pn[2]]; |
472 |
|
goto nomem; |
473 |
|
} |
474 |
|
if (pp->nj2tris >= 256) |
475 |
< |
goto toomany; |
476 |
< |
pp->j2tri[pp->nj2tris].v1j = pn[0] << 8 | (vid[0] & 0xff); |
477 |
< |
pp->j2tri[pp->nj2tris].v2j = pn[1] << 8 | (vid[1] & 0xff); |
475 |
> |
error(INTERNAL, "too many patch triangles in addmeshtri"); |
476 |
> |
pp->j2tri[pp->nj2tris].v1j = vid[0]; |
477 |
> |
pp->j2tri[pp->nj2tris].v2j = vid[1]; |
478 |
|
pp->j2tri[pp->nj2tris].v3 = vid[2] & 0xff; |
479 |
< |
|
479 |
> |
pp->j2tri[pp->nj2tris].mat = mo; |
480 |
|
return(pn[2] << 10 | 0x300 | pp->nj2tris++); |
481 |
|
nomem: |
482 |
|
error(SYSTEM, "out of memory in addmeshtri"); |
483 |
|
return(OVOID); |
436 |
– |
toomany: |
437 |
– |
error(CONSISTENCY, "too many patch triangles in addmeshtri"); |
438 |
– |
return(OVOID); |
484 |
|
} |
485 |
|
|
486 |
|
|
487 |
+ |
char * |
488 |
+ |
checkmesh(mp) /* validate mesh data */ |
489 |
+ |
register MESH *mp; |
490 |
+ |
{ |
491 |
+ |
static char embuf[128]; |
492 |
+ |
int nouvbounds = 1; |
493 |
+ |
register int i; |
494 |
+ |
/* basic checks */ |
495 |
+ |
if (mp == NULL) |
496 |
+ |
return("NULL mesh pointer"); |
497 |
+ |
if (!mp->ldflags) |
498 |
+ |
return("unassigned mesh"); |
499 |
+ |
if (mp->name == NULL) |
500 |
+ |
return("missing mesh name"); |
501 |
+ |
if (mp->nref <= 0) |
502 |
+ |
return("unreferenced mesh"); |
503 |
+ |
/* check boundaries */ |
504 |
+ |
if (mp->ldflags & IO_BOUNDS) { |
505 |
+ |
if (mp->mcube.cusize <= FTINY) |
506 |
+ |
return("illegal octree bounds in mesh"); |
507 |
+ |
nouvbounds = (mp->uvlim[1][0] - mp->uvlim[0][0] <= FTINY || |
508 |
+ |
mp->uvlim[1][1] - mp->uvlim[0][1] <= FTINY); |
509 |
+ |
} |
510 |
+ |
/* check octree */ |
511 |
+ |
if (mp->ldflags & IO_TREE) { |
512 |
+ |
if (isempty(mp->mcube.cutree)) |
513 |
+ |
error(WARNING, "empty mesh octree"); |
514 |
+ |
} |
515 |
+ |
/* check scene data */ |
516 |
+ |
if (mp->ldflags & IO_SCENE) { |
517 |
+ |
if (!(mp->ldflags & IO_BOUNDS)) |
518 |
+ |
return("unbounded scene in mesh"); |
519 |
+ |
if (mp->mat0 < 0 || mp->mat0+mp->nmats > nobjects) |
520 |
+ |
return("bad mesh modifier range"); |
521 |
+ |
for (i = mp->mat0+mp->nmats; i-- > mp->mat0; ) { |
522 |
+ |
int otyp = objptr(i)->otype; |
523 |
+ |
if (!ismodifier(otyp)) { |
524 |
+ |
sprintf(embuf, |
525 |
+ |
"non-modifier in mesh (%s \"%s\")", |
526 |
+ |
ofun[otyp].funame, objptr(i)->oname); |
527 |
+ |
return(embuf); |
528 |
+ |
} |
529 |
+ |
} |
530 |
+ |
if (mp->npatches <= 0) |
531 |
+ |
error(WARNING, "no patches in mesh"); |
532 |
+ |
for (i = 0; i < mp->npatches; i++) { |
533 |
+ |
register MESHPATCH *pp = &mp->patch[i]; |
534 |
+ |
if (pp->nverts <= 0) |
535 |
+ |
error(WARNING, "no vertices in patch"); |
536 |
+ |
else { |
537 |
+ |
if (pp->xyz == NULL) |
538 |
+ |
return("missing patch vertex list"); |
539 |
+ |
if (nouvbounds && pp->uv != NULL) |
540 |
+ |
return("unreferenced uv coordinates"); |
541 |
+ |
} |
542 |
+ |
if (pp->ntris + pp->nj1tris + pp->nj2tris <= 0) |
543 |
+ |
error(WARNING, "no triangles in patch"); |
544 |
+ |
if (pp->ntris > 0 && pp->tri == NULL) |
545 |
+ |
return("missing patch triangle list"); |
546 |
+ |
if (pp->nj1tris > 0 && pp->j1tri == NULL) |
547 |
+ |
return("missing patch joiner triangle list"); |
548 |
+ |
if (pp->nj2tris > 0 && pp->j2tri == NULL) |
549 |
+ |
return("missing patch double-joiner list"); |
550 |
+ |
} |
551 |
+ |
} |
552 |
+ |
return(NULL); /* seems OK */ |
553 |
+ |
} |
554 |
+ |
|
555 |
+ |
|
556 |
|
static void |
557 |
|
tallyoctree(ot, ecp, lcp, ocp) /* tally octree size */ |
558 |
|
OCTREE ot; |
608 |
|
t2cnt += pp->nj2tris; |
609 |
|
} |
610 |
|
fprintf(fp, "Mesh statistics:\n"); |
611 |
+ |
fprintf(fp, "\t%d materials\n", ms->nmats); |
612 |
|
fprintf(fp, "\t%d patches (%.2f MBytes)\n", ms->npatches, |
613 |
|
(ms->npatches*sizeof(MESHPATCH) + |
614 |
|
vcnt*3*sizeof(uint4) + |
632 |
|
|
633 |
|
void |
634 |
|
freemesh(ms) /* free mesh data */ |
635 |
< |
MESH *ms; |
635 |
> |
register MESH *ms; |
636 |
|
{ |
637 |
|
MESH mhead; |
638 |
|
MESH *msp; |
658 |
|
/* free mesh data */ |
659 |
|
freestr(ms->name); |
660 |
|
octfree(ms->mcube.cutree); |
661 |
< |
if (ms->cdata != NULL) |
547 |
< |
lu_done((LUTAB *)ms->cdata); |
661 |
> |
lu_done(&ms->lut); |
662 |
|
if (ms->npatches > 0) { |
663 |
|
register MESHPATCH *pp = ms->patch + ms->npatches; |
664 |
|
while (pp-- > ms->patch) { |
677 |
|
} |
678 |
|
free((void *)ms->patch); |
679 |
|
} |
680 |
+ |
if (ms->pseudo != NULL) |
681 |
+ |
free((void *)ms->pseudo); |
682 |
|
free((void *)ms); |
683 |
|
} |
684 |
|
|