8 |
|
* sm.c |
9 |
|
*/ |
10 |
|
#include "standard.h" |
11 |
– |
|
12 |
– |
#include "object.h" |
13 |
– |
|
11 |
|
#include "sm_list.h" |
12 |
|
#include "sm_geom.h" |
13 |
|
#include "sm.h" |
17 |
|
double smDist_sum=0; |
18 |
|
int smNew_tri_cnt=0; |
19 |
|
|
20 |
+ |
static int smBase_nbrs[4][3] = { {3,2,1},{3,0,2},{3,1,0},{1,2,0}}; |
21 |
+ |
|
22 |
|
#ifdef TEST_DRIVER |
24 |
– |
VIEW View = {0,{0,0,0},{0,0,-1},{0,1,0},60,60,0}; |
23 |
|
VIEW Current_View = {0,{0,0,0},{0,0,-1},{0,1,0},60,60,0}; |
24 |
|
int Pick_cnt =0; |
25 |
< |
int Pick_tri = -1,Picking = FALSE; |
25 |
> |
int Pick_tri = -1,Picking = FALSE,Pick_samp=-1; |
26 |
|
FVECT Pick_point[500],Pick_origin,Pick_dir; |
27 |
|
FVECT Pick_v0[500], Pick_v1[500], Pick_v2[500]; |
28 |
|
FVECT P0,P1,P2; |
224 |
|
{ |
225 |
|
int max_vertices; |
226 |
|
|
229 |
– |
sleep(10); |
230 |
– |
|
227 |
|
/* If n <=0, Just clear the existing structures */ |
228 |
|
if(n <= 0) |
229 |
|
{ |
256 |
|
SM *sm; |
257 |
|
FVECT v0,v1,v2; |
258 |
|
int (*func)(); |
259 |
< |
char *arg; |
259 |
> |
int *arg; |
260 |
|
{ |
261 |
|
STREE *st; |
262 |
< |
char found; |
262 |
> |
int found; |
263 |
|
FVECT p0,p1,p2; |
264 |
|
|
265 |
|
st = SM_LOCATOR(sm); |
266 |
|
|
267 |
< |
point_on_sphere(p0,v0,SM_VIEW_CENTER(sm)); |
268 |
< |
point_on_sphere(p1,v1,SM_VIEW_CENTER(sm)); |
269 |
< |
point_on_sphere(p2,v2,SM_VIEW_CENTER(sm)); |
267 |
> |
VSUB(p0,v0,SM_VIEW_CENTER(sm)); |
268 |
> |
VSUB(p1,v1,SM_VIEW_CENTER(sm)); |
269 |
> |
VSUB(p2,v2,SM_VIEW_CENTER(sm)); |
270 |
|
|
271 |
|
found = stApply_to_tri_cells(st,p0,p1,p2,func,arg); |
272 |
|
|
275 |
|
|
276 |
|
|
277 |
|
int |
278 |
+ |
add_tri_expand(qtptr,q0,q1,q2,t0,t1,t2,n,arg,t_id) |
279 |
+ |
QUADTREE *qtptr; |
280 |
+ |
FVECT q0,q1,q2; |
281 |
+ |
FVECT t0,t1,t2; |
282 |
+ |
int n; |
283 |
+ |
int *arg; |
284 |
+ |
int t_id; |
285 |
+ |
{ |
286 |
+ |
OBJECT tset[QT_MAXSET+1],*optr; |
287 |
+ |
int i,id,found; |
288 |
+ |
FVECT v0,v1,v2; |
289 |
+ |
TRI *tri; |
290 |
+ |
#ifdef DEBUG_TEST_DRIVER |
291 |
+ |
Pick_tri = t_id; |
292 |
+ |
Picking = TRUE; |
293 |
+ |
#endif |
294 |
+ |
|
295 |
+ |
if(QT_IS_EMPTY(*qtptr)) |
296 |
+ |
{ |
297 |
+ |
*qtptr = qtaddelem(*qtptr,t_id); |
298 |
+ |
return(TRUE); |
299 |
+ |
} |
300 |
+ |
|
301 |
+ |
optr = qtqueryset(*qtptr); |
302 |
+ |
if(!inset(optr,t_id)) |
303 |
+ |
{ |
304 |
+ |
if(QT_SET_CNT(optr) < QT_MAXSET) |
305 |
+ |
*qtptr = qtaddelem(*qtptr,t_id); |
306 |
+ |
else |
307 |
+ |
{ |
308 |
+ |
#ifdef DEBUG |
309 |
+ |
eputs("add_tri_expand():no room in set\n"); |
310 |
+ |
#endif |
311 |
+ |
return(FALSE); |
312 |
+ |
} |
313 |
+ |
} |
314 |
+ |
optr = qtqueryset(*qtptr); |
315 |
+ |
if(QT_SET_CNT(optr) >= QT_SET_THRESHOLD) |
316 |
+ |
if (n < QT_MAX_LEVELS) |
317 |
+ |
{ |
318 |
+ |
qtgetset(tset,*qtptr); |
319 |
+ |
/* If set size exceeds threshold: subdivide cell and reinsert tris*/ |
320 |
+ |
qtfreeleaf(*qtptr); |
321 |
+ |
qtSubdivide(qtptr); |
322 |
+ |
|
323 |
+ |
for(optr = QT_SET_PTR(tset),i=QT_SET_CNT(tset); i > 0; i--) |
324 |
+ |
{ |
325 |
+ |
id = QT_SET_NEXT_ELEM(optr); |
326 |
+ |
tri = SM_NTH_TRI(smMesh,id); |
327 |
+ |
VSUB(v0,SM_T_NTH_WV(smMesh,tri,0),SM_VIEW_CENTER(smMesh)); |
328 |
+ |
VSUB(v1,SM_T_NTH_WV(smMesh,tri,1),SM_VIEW_CENTER(smMesh)); |
329 |
+ |
VSUB(v2,SM_T_NTH_WV(smMesh,tri,2),SM_VIEW_CENTER(smMesh)); |
330 |
+ |
found = qtAdd_tri(qtptr,q0,q1,q2,v0,v1,v2,id,n); |
331 |
+ |
#ifdef DEBUG |
332 |
+ |
if(!found) |
333 |
+ |
eputs("add_tri_expand():Reinsert\n"); |
334 |
+ |
#endif |
335 |
+ |
} |
336 |
+ |
return(QT_MODIFIED); |
337 |
+ |
} |
338 |
+ |
else |
339 |
+ |
if(QT_SET_CNT(optr) < QT_MAXSET) |
340 |
+ |
{ |
341 |
+ |
#ifdef DEBUG_TEST_DRIVER |
342 |
+ |
eputs("add_tri_expand():too many levels:can't expand\n"); |
343 |
+ |
#endif |
344 |
+ |
return(TRUE); |
345 |
+ |
} |
346 |
+ |
else |
347 |
+ |
{ |
348 |
+ |
#ifdef DEBUG |
349 |
+ |
eputs("add_tri_expand():too many tris inset:can't add\n"); |
350 |
+ |
#endif |
351 |
+ |
return(FALSE); |
352 |
+ |
} |
353 |
+ |
} |
354 |
+ |
|
355 |
+ |
|
356 |
+ |
int |
357 |
+ |
add_tri(qtptr,fptr,t_id) |
358 |
+ |
QUADTREE *qtptr; |
359 |
+ |
int *fptr; |
360 |
+ |
int t_id; |
361 |
+ |
{ |
362 |
+ |
|
363 |
+ |
OBJECT *optr; |
364 |
+ |
|
365 |
+ |
#ifdef DEBUG_TEST_DRIVER |
366 |
+ |
Pick_tri = t_id; |
367 |
+ |
Picking = TRUE; |
368 |
+ |
#endif |
369 |
+ |
if(QT_IS_EMPTY(*qtptr)) |
370 |
+ |
{ |
371 |
+ |
*qtptr = qtaddelem(*qtptr,t_id); |
372 |
+ |
if(!QT_FLAG_FILL_TRI(*fptr)) |
373 |
+ |
(*fptr)++; |
374 |
+ |
} |
375 |
+ |
else |
376 |
+ |
{ |
377 |
+ |
optr = qtqueryset(*qtptr); |
378 |
+ |
if(!inset(optr,t_id)) |
379 |
+ |
{ |
380 |
+ |
if(QT_SET_CNT(optr) < QT_MAXSET) |
381 |
+ |
{ |
382 |
+ |
if(QT_SET_CNT(optr) >= QT_SET_THRESHOLD) |
383 |
+ |
(*fptr) |= QT_EXPAND; |
384 |
+ |
if(!QT_FLAG_FILL_TRI(*fptr)) |
385 |
+ |
(*fptr)++; |
386 |
+ |
*qtptr = qtaddelem(*qtptr,t_id); |
387 |
+ |
} |
388 |
+ |
else |
389 |
+ |
{ |
390 |
+ |
#ifdef DEBUG_TESTDRIVER |
391 |
+ |
eputs("add_tri():exceeded set size\n"); |
392 |
+ |
#endif |
393 |
+ |
return(FALSE); |
394 |
+ |
} |
395 |
+ |
} |
396 |
+ |
} |
397 |
+ |
return(TRUE); |
398 |
+ |
} |
399 |
+ |
|
400 |
+ |
|
401 |
+ |
int |
402 |
+ |
stInsert_tri(st,t_id,t0,t1,t2) |
403 |
+ |
STREE *st; |
404 |
+ |
int t_id; |
405 |
+ |
FVECT t0,t1,t2; |
406 |
+ |
{ |
407 |
+ |
int f; |
408 |
+ |
FVECT dir; |
409 |
+ |
|
410 |
+ |
/* First add all of the leaf cells lying on the triangle perimeter: |
411 |
+ |
mark all cells seen on the way |
412 |
+ |
*/ |
413 |
+ |
ST_CLEAR_FLAGS(st); |
414 |
+ |
f = 0; |
415 |
+ |
VSUB(dir,t1,t0); |
416 |
+ |
stTrace_edge(st,t0,dir,1.0,add_tri,&f,t_id); |
417 |
+ |
VSUB(dir,t2,t1); |
418 |
+ |
stTrace_edge(st,t1,dir,1.0,add_tri,&f,t_id); |
419 |
+ |
VSUB(dir,t0,t2); |
420 |
+ |
stTrace_edge(st,t2,dir,1.0,add_tri,&f,t_id); |
421 |
+ |
/* Now visit interior */ |
422 |
+ |
if(QT_FLAG_FILL_TRI(f) || QT_FLAG_UPDATE(f)) |
423 |
+ |
stVisit_tri_interior(st,t0,t1,t2,add_tri_expand,&f,t_id); |
424 |
+ |
} |
425 |
+ |
|
426 |
|
smLocator_add_tri(sm,t_id,v0_id,v1_id,v2_id) |
427 |
|
SM *sm; |
428 |
|
int t_id; |
429 |
|
int v0_id,v1_id,v2_id; |
430 |
|
{ |
431 |
|
STREE *st; |
432 |
< |
FVECT p0,p1,p2; |
432 |
> |
FVECT v0,v1,v2; |
433 |
|
|
434 |
|
st = SM_LOCATOR(sm); |
435 |
|
|
436 |
< |
smDir(sm,p0,v0_id); |
437 |
< |
smDir(sm,p1,v1_id); |
438 |
< |
smDir(sm,p2,v2_id); |
436 |
> |
VSUB(v0,SM_NTH_WV(sm,v0_id),SM_VIEW_CENTER(sm)); |
437 |
> |
VSUB(v1,SM_NTH_WV(sm,v1_id),SM_VIEW_CENTER(sm)); |
438 |
> |
VSUB(v2,SM_NTH_WV(sm,v2_id),SM_VIEW_CENTER(sm)); |
439 |
|
|
440 |
< |
stAdd_tri(st,t_id,p0,p1,p2); |
440 |
> |
stUpdate_tri(st,t_id,v0,v1,v2,add_tri,add_tri_expand); |
441 |
|
|
298 |
– |
return(1); |
442 |
|
} |
443 |
|
|
444 |
|
/* Add a triangle to the base array with vertices v1-v2-v3 */ |
526 |
|
} |
527 |
|
} |
528 |
|
else |
529 |
< |
if(d1 < d2) |
529 |
> |
if(d1 < d0) |
530 |
|
{ |
531 |
|
if((eps < 0) || d1 < eps) |
532 |
|
{ |
534 |
|
d = d1; |
535 |
|
} |
536 |
|
} |
537 |
< |
else |
395 |
< |
if((eps < 0) || d2 < eps) |
396 |
< |
{ |
397 |
< |
closest = v2_id; |
398 |
< |
d = d2; |
399 |
< |
} |
400 |
< |
} |
537 |
> |
} |
538 |
|
if(v2_id != -1) |
539 |
|
{ |
540 |
|
smDir(sm,v,v2_id); |
541 |
|
d2 = DIST(p,v); |
542 |
|
if((eps < 0) || d2 < eps) |
543 |
< |
if(closest== -1 ||(d2 < d)) |
543 |
> |
if(closest == -1 ||(d2 < d)) |
544 |
|
return(v2_id); |
545 |
|
} |
546 |
|
return(closest); |
563 |
|
|
564 |
|
VCOPY(v,SM_NTH_WV(sm,v1_id)); |
565 |
|
d1 = DIST(p,v); |
566 |
< |
if(d1 < d2) |
566 |
> |
if(d1 < d0) |
567 |
|
{ |
568 |
|
closest = v1_id; |
569 |
|
d = d1; |
581 |
|
SM *sm; |
582 |
|
int t_id,t1_id; |
583 |
|
int e,e1; |
584 |
< |
int **tn_id,**tn1_id; |
584 |
> |
int *tn_id,*tn1_id; |
585 |
|
LIST **add,**del; |
586 |
|
|
587 |
|
{ |
606 |
|
verts[eprev] = T_NTH_V(t,eprev); |
607 |
|
ta_id = smAdd_tri(sm,verts[0],verts[1],verts[2],&ta); |
608 |
|
*add = push_data(*add,ta_id); |
472 |
– |
|
609 |
|
verts[e1] = T_NTH_V(t1,e1); |
610 |
|
verts[e1next] = T_NTH_V(t,eprev); |
611 |
|
verts[e1prev] = T_NTH_V(t1,e1prev); |
632 |
|
T_NTH_NBR(n,T_NTH_NBR_PTR(t1_id,n)) = tb_id; |
633 |
|
|
634 |
|
/* Delete two parent triangles */ |
635 |
+ |
|
636 |
|
*del = push_data(*del,t_id); |
637 |
< |
if(SM_IS_NTH_T_NEW(sm,t_id)) |
501 |
< |
SM_CLEAR_NTH_T_NEW(sm,t_id); |
502 |
< |
else |
503 |
< |
SM_CLEAR_NTH_T_BASE(sm,t_id); |
637 |
> |
T_VALID_FLAG(t) = -1; |
638 |
|
*del = push_data(*del,t1_id); |
639 |
< |
if(SM_IS_NTH_T_NEW(sm,t1_id)) |
506 |
< |
SM_CLEAR_NTH_T_NEW(sm,t1_id); |
507 |
< |
else |
508 |
< |
SM_CLEAR_NTH_T_BASE(sm,t1_id); |
639 |
> |
T_VALID_FLAG(t1) = -1; |
640 |
|
*tn_id = ta_id; |
641 |
|
*tn1_id = tb_id; |
642 |
|
} |
650 |
|
while(add_list) |
651 |
|
{ |
652 |
|
t_id = pop_list(&add_list); |
653 |
< |
if(!SM_IS_NTH_T_NEW(sm,t_id) && !SM_IS_NTH_T_BASE(sm,t_id)) |
653 |
> |
t = SM_NTH_TRI(sm,t_id); |
654 |
> |
if(!T_IS_VALID(t)) |
655 |
|
{ |
656 |
< |
SM_SET_NTH_T_NEW(sm,t_id); |
656 |
> |
T_VALID_FLAG(t) = 1; |
657 |
|
continue; |
658 |
|
} |
527 |
– |
t = SM_NTH_TRI(sm,t_id); |
659 |
|
smLocator_add_tri(sm,t_id,T_NTH_V(t,0),T_NTH_V(t,1),T_NTH_V(t,2)); |
660 |
|
} |
661 |
|
|
662 |
|
while(del_list) |
663 |
|
{ |
664 |
|
t_id = pop_list(&del_list); |
665 |
< |
if(SM_IS_NTH_T_NEW(sm,t_id)) |
666 |
< |
{ |
667 |
< |
smDelete_tri(sm,t_id); |
668 |
< |
continue; |
665 |
> |
t = SM_NTH_TRI(sm,t_id); |
666 |
> |
if(!T_IS_VALID(t)) |
667 |
> |
{ |
668 |
> |
smLocator_remove_tri(sm,t_id); |
669 |
|
} |
539 |
– |
smLocator_remove_tri(sm,t_id); |
670 |
|
smDelete_tri(sm,t_id); |
671 |
|
} |
672 |
|
} |
673 |
|
/* MUST add check for constrained edges */ |
674 |
|
int |
675 |
< |
smFix_tris(sm,id,tlist) |
675 |
> |
smFix_tris(sm,id,tlist,add_list,del_list) |
676 |
|
SM *sm; |
677 |
|
int id; |
678 |
|
LIST *tlist; |
679 |
+ |
LIST *add_list,*del_list; |
680 |
|
{ |
681 |
|
TRI *t,*t_opp; |
682 |
|
FVECT p,p1,p2,p3; |
683 |
|
int e,e1,swapped = 0; |
684 |
|
int t_id,t_opp_id; |
554 |
– |
LIST *add_list,*del_list; |
685 |
|
|
686 |
|
|
557 |
– |
add_list = del_list = NULL; |
687 |
|
VSUB(p,SM_NTH_WV(sm,id),SM_VIEW_CENTER(sm)); |
688 |
|
while(tlist) |
689 |
|
{ |
692 |
|
e = (T_WHICH_V(t,id)+1)%3; |
693 |
|
t_opp_id = T_NTH_NBR(t,e); |
694 |
|
t_opp = SM_NTH_TRI(sm,t_opp_id); |
695 |
< |
|
695 |
> |
/* |
696 |
> |
VSUB(p1,SM_T_NTH_WV(sm,t_opp,0),SM_VIEW_CENTER(sm)); |
697 |
> |
VSUB(p2,SM_T_NTH_WV(sm,t_opp,1),SM_VIEW_CENTER(sm)); |
698 |
> |
VSUB(p3,SM_T_NTH_WV(sm,t_opp,2),SM_VIEW_CENTER(sm)); |
699 |
> |
*/ |
700 |
|
smDir(sm,p1,T_NTH_V(t_opp,0)); |
701 |
|
smDir(sm,p2,T_NTH_V(t_opp,1)); |
702 |
|
smDir(sm,p3,T_NTH_V(t_opp,2)); |
713 |
|
} |
714 |
|
} |
715 |
|
smUpdate_locator(sm,add_list,del_list); |
583 |
– |
|
716 |
|
return(swapped); |
717 |
|
} |
718 |
|
|
745 |
|
|
746 |
|
T_NTH_V(tri,T_WHICH_V(tri,id)) = nid; |
747 |
|
|
748 |
< |
t_id = smTri_next_ccw_nbr(sm,t,nid); |
749 |
< |
while((t= SM_NTH_TRI(sm,t_id)) != tri) |
748 |
> |
t_id = smTri_next_ccw_nbr(sm,tri,nid); |
749 |
> |
while((t = SM_NTH_TRI(sm,t_id)) != tri) |
750 |
|
{ |
751 |
|
T_NTH_V(t,T_WHICH_V(t,id)) = nid; |
752 |
|
t_id = smTri_next_ccw_nbr(sm,t,nid); |
772 |
|
COLR c; |
773 |
|
FVECT dir,p; |
774 |
|
int tri_id,snew_id; |
775 |
< |
char type,which; |
775 |
> |
int type,which; |
776 |
|
{ |
777 |
|
int n_id,s_id; |
778 |
|
TRI *tri; |
821 |
|
TRI *tri,*t0,*t1,*t2,*nbr; |
822 |
|
int v0_id,v1_id,v2_id,n_id; |
823 |
|
int t0_id,t1_id,t2_id; |
824 |
< |
LIST *tlist; |
824 |
> |
LIST *tlist,*add_list,*del_list; |
825 |
|
FVECT npt; |
826 |
|
|
827 |
+ |
add_list = del_list = NULL; |
828 |
|
if(s_id == SM_INVALID) |
829 |
|
s_id = smAdd_sample_point(sm,c,dir,p); |
830 |
|
|
845 |
|
} |
846 |
|
t0_id = smAdd_tri(sm,s_id,v0_id,v1_id,&t0); |
847 |
|
/* Add triangle to the locator */ |
848 |
< |
smLocator_add_tri(sm,t0_id,s_id,v0_id,v1_id); |
848 |
> |
|
849 |
> |
add_list = push_data(add_list,t0_id); |
850 |
|
|
851 |
|
t1_id = smAdd_tri(sm,s_id,v1_id,v2_id,&t1); |
852 |
< |
smLocator_add_tri(sm,t1_id,s_id,v1_id,v2_id); |
852 |
> |
add_list = push_data(add_list,t1_id); |
853 |
> |
|
854 |
|
t2_id = smAdd_tri(sm,s_id,v2_id,v0_id,&t2); |
855 |
< |
smLocator_add_tri(sm,t2_id,s_id,v2_id,v0_id); |
855 |
> |
add_list = push_data(add_list,t2_id); |
856 |
|
|
857 |
|
/* Set the neighbor pointers for the new tris */ |
858 |
|
T_NTH_NBR(t0,0) = t2_id; |
873 |
|
nbr = SM_NTH_TRI(sm,T_NTH_NBR(tri,2)); |
874 |
|
T_NTH_NBR(nbr,T_NTH_NBR_PTR(tri_id,nbr)) = t2_id; |
875 |
|
|
876 |
< |
smLocator_remove_tri(sm,tri_id); |
877 |
< |
smDelete_tri(sm,tri_id); |
878 |
< |
|
876 |
> |
del_list = push_data(del_list,tri_id); |
877 |
> |
T_VALID_FLAG(tri) = -1; |
878 |
> |
|
879 |
|
/* Fix up the new triangles*/ |
880 |
|
tlist = push_data(NULL,t0_id); |
881 |
|
tlist = push_data(tlist,t1_id); |
882 |
|
tlist = push_data(tlist,t2_id); |
883 |
|
|
884 |
< |
smFix_tris(sm,s_id,tlist); |
884 |
> |
smFix_tris(sm,s_id,tlist,add_list,del_list); |
885 |
|
|
886 |
|
if(n_id != -1) |
887 |
|
smDelete_point(sm,n_id); |
891 |
|
|
892 |
|
|
893 |
|
int |
894 |
< |
smPointLocate(sm,pt,type,which,norm) |
894 |
> |
smPointLocate(sm,pt,norm) |
895 |
|
SM *sm; |
896 |
|
FVECT pt; |
897 |
< |
char *type,*which; |
763 |
< |
char norm; |
897 |
> |
int norm; |
898 |
|
{ |
899 |
|
STREE *st; |
900 |
|
int tri; |
903 |
|
st = SM_LOCATOR(sm); |
904 |
|
if(norm) |
905 |
|
{ |
906 |
< |
point_on_sphere(npt,pt,SM_VIEW_CENTER(sm)); |
907 |
< |
tri = stPoint_locate(st,npt,type,which); |
906 |
> |
VSUB(npt,pt,SM_VIEW_CENTER(sm)); |
907 |
> |
tri = stPoint_locate(st,npt); |
908 |
|
} |
909 |
|
else |
910 |
< |
tri = stPoint_locate(st,pt,type,which); |
910 |
> |
tri = stPoint_locate(st,pt); |
911 |
|
return(tri); |
912 |
|
} |
913 |
|
|
914 |
|
QUADTREE |
915 |
< |
smPointLocateCell(sm,pt,type,which,norm) |
915 |
> |
smPointLocateCell(sm,pt,norm,v0,v1,v2) |
916 |
|
SM *sm; |
917 |
|
FVECT pt; |
918 |
< |
char *type,*which; |
919 |
< |
char norm; |
918 |
> |
int norm; |
919 |
> |
FVECT v0,v1,v2; |
920 |
|
{ |
921 |
|
STREE *st; |
922 |
< |
QUADTREE qt; |
922 |
> |
QUADTREE *qtptr; |
923 |
|
FVECT npt; |
924 |
|
|
925 |
|
st = SM_LOCATOR(sm); |
926 |
|
if(norm) |
927 |
|
{ |
928 |
< |
point_on_sphere(npt,pt,SM_VIEW_CENTER(sm)); |
928 |
> |
VSUB(npt,pt,SM_VIEW_CENTER(sm)); |
929 |
|
|
930 |
< |
qt = stPoint_locate_cell(st,npt,type,which); |
930 |
> |
qtptr = stPoint_locate_cell(st,npt,v0,v1,v2); |
931 |
|
} |
932 |
|
else |
933 |
< |
qt = stPoint_locate_cell(st,pt,type,which); |
933 |
> |
qtptr = stPoint_locate_cell(st,pt,v0,v1,v2); |
934 |
|
|
935 |
< |
return(qt); |
935 |
> |
if(qtptr) |
936 |
> |
return(*qtptr); |
937 |
> |
else |
938 |
> |
return(EMPTY); |
939 |
|
} |
940 |
|
|
941 |
|
int |
946 |
|
int s_id; |
947 |
|
{ |
948 |
|
int t_id; |
812 |
– |
char type,which; |
949 |
|
double d; |
950 |
|
FVECT p; |
951 |
|
|
956 |
|
d = DIST(pt,SM_VIEW_CENTER(smMesh)); |
957 |
|
smDist_sum += 1.0/d; |
958 |
|
/************************************/ |
959 |
< |
t_id = smPointLocate(smMesh,pt,&type,&which,TRUE); |
960 |
< |
if(type==GT_FACE) |
959 |
> |
t_id = smPointLocate(smMesh,pt,TRUE); |
960 |
> |
if(t_id >= 0) |
961 |
|
s_id = smInsert_point_in_tri(smMesh,c,dir,pt,s_id,t_id); |
826 |
– |
else |
827 |
– |
if(type==GT_VERTEX) |
828 |
– |
s_id = smReplace_vertex(smMesh,c,dir,pt,t_id,s_id,type,which); |
962 |
|
#ifdef DEBUG |
963 |
|
else |
964 |
< |
eputs("smAdd_sample_to_mesh(): unrecognized type\n"); |
964 |
> |
{ |
965 |
> |
c[0] = 255;c[1]=0;c[2]=0; |
966 |
> |
s_id = smAdd_sample_point(sm,c,dir,pt); |
967 |
> |
eputs("smAdd_sample_to_mesh(): not found fg\n"); |
968 |
> |
} |
969 |
|
#endif |
970 |
|
} |
971 |
|
else if(s_id != -1) |
978 |
|
smDist_sum += 1.0/d; |
979 |
|
/************************************/ |
980 |
|
} |
981 |
< |
t_id = smPointLocate(smMesh,p,&type,&which,TRUE); |
982 |
< |
if(type==GT_FACE) |
981 |
> |
t_id = smPointLocate(smMesh,p,TRUE); |
982 |
> |
if(t_id != -1) |
983 |
|
s_id = smInsert_point_in_tri(smMesh,c,dir,p,s_id,t_id); |
847 |
– |
else |
848 |
– |
if(type==GT_VERTEX) |
849 |
– |
s_id = smReplace_vertex(smMesh,c,dir,p,t_id,s_id,type,which); |
984 |
|
#ifdef DEBUG |
985 |
|
else |
986 |
< |
eputs("smAdd_sample_to_mesh(): unrecognized type\n"); |
986 |
> |
eputs("smAdd_sample_to_mesh():not found reinsert\n"); |
987 |
|
#endif |
988 |
|
} |
989 |
|
/* Is a BG(sky point) */ |
990 |
|
else |
991 |
|
{ |
992 |
< |
t_id = smPointLocate(smMesh,dir,&type,&which,FALSE); |
993 |
< |
if(type==GT_FACE) |
992 |
> |
t_id = smPointLocate(smMesh,dir,FALSE); |
993 |
> |
if(t_id != -1) |
994 |
|
s_id = smInsert_point_in_tri(smMesh,c,dir,NULL,s_id,t_id); |
995 |
< |
else |
862 |
< |
if(type==GT_VERTEX) |
863 |
< |
s_id = smReplace_vertex(smMesh,c,dir,NULL,t_id,s_id,type,which); |
995 |
> |
|
996 |
|
#ifdef DEBUG |
997 |
|
else |
998 |
< |
eputs("smAdd_sample_to_mesh(): unrecognized type\n"); |
998 |
> |
eputs("smAdd_sample_to_mesh(): not found bg\n"); |
999 |
|
#endif |
1000 |
|
} |
1001 |
|
return(s_id); |
1020 |
|
|
1021 |
|
{ |
1022 |
|
int s_id; |
1023 |
+ |
int debug=0; |
1024 |
|
|
1025 |
|
/* First check if this the first sample: if so initialize mesh */ |
1026 |
|
if(SM_NUM_SAMP(smMesh) == 0) |
894 |
– |
#ifdef TEST_DRIVER |
895 |
– |
smInit_mesh(smMesh,View.vp); |
896 |
– |
#else |
1027 |
|
smInit_mesh(smMesh,odev.v.vp); |
1028 |
< |
#endif |
1029 |
< |
s_id = smAdd_sample_to_mesh(smMesh,c,dir,p,-1); |
900 |
< |
#if 0 |
901 |
< |
{ |
902 |
< |
char buff[100]; |
903 |
< |
sprintf(buff,"Added sample %d\n",s_id); |
904 |
< |
eputs(buff); |
905 |
< |
} |
906 |
< |
#endif |
1028 |
> |
if(!debug) |
1029 |
> |
s_id = smAdd_sample_to_mesh(smMesh,c,dir,p,-1); |
1030 |
|
return(s_id); |
1031 |
|
|
1032 |
|
} |
1100 |
|
SM *sm; |
1101 |
|
int type; |
1102 |
|
{ |
1103 |
< |
int i,id; |
1103 |
> |
int i,id,tri_id,nbr_id; |
1104 |
|
int p[4],ids[4]; |
1105 |
|
int v0_id,v1_id,v2_id; |
1106 |
|
TRI *tris[4]; |
1110 |
|
|
1111 |
|
for(i=0; i < 4; i++) |
1112 |
|
{ |
1113 |
< |
VADD(cntr,stDefault_base[i],SM_VIEW_CENTER(sm)); |
1114 |
< |
point_on_sphere(d,cntr,SM_VIEW_CENTER(sm)); |
1115 |
< |
id = smAdd_base_vertex(sm,cntr,d); |
1113 |
> |
VCOPY(cntr,stDefault_base[i]); |
1114 |
> |
cntr[0] += .01; |
1115 |
> |
cntr[1] += .02; |
1116 |
> |
cntr[2] += .03; |
1117 |
> |
VADD(cntr,cntr,SM_VIEW_CENTER(sm)); |
1118 |
> |
/* WONT use dir */ |
1119 |
> |
point_on_sphere(d,cntr,SM_VIEW_CENTER(sm)); |
1120 |
> |
id = smAdd_base_vertex(sm,cntr,d); |
1121 |
|
/* test to make sure vertex allocated */ |
1122 |
|
if(id != -1) |
1123 |
|
p[i] = id; |
1136 |
|
} |
1137 |
|
/* Set neighbors */ |
1138 |
|
|
1139 |
< |
T_NTH_NBR(tris[0],0) = ids[3]; |
1140 |
< |
T_NTH_NBR(tris[0],1) = ids[2]; |
1141 |
< |
T_NTH_NBR(tris[0],2) = ids[1]; |
1139 |
> |
for(tri_id=0;tri_id < 4; tri_id++) |
1140 |
> |
for(nbr_id=0; nbr_id < 3; nbr_id++) |
1141 |
> |
T_NTH_NBR(tris[tri_id],nbr_id) = smBase_nbrs[tri_id][nbr_id]; |
1142 |
|
|
1015 |
– |
T_NTH_NBR(tris[1],0) = ids[3]; |
1016 |
– |
T_NTH_NBR(tris[1],1) = ids[0]; |
1017 |
– |
T_NTH_NBR(tris[1],2) = ids[2]; |
1018 |
– |
|
1019 |
– |
T_NTH_NBR(tris[2],0) = ids[3]; |
1020 |
– |
T_NTH_NBR(tris[2],1) = ids[1]; |
1021 |
– |
T_NTH_NBR(tris[2],2) = ids[0]; |
1022 |
– |
|
1023 |
– |
T_NTH_NBR(tris[3],0) = ids[1]; |
1024 |
– |
T_NTH_NBR(tris[3],1) = ids[2]; |
1025 |
– |
T_NTH_NBR(tris[3],2) = ids[0]; |
1143 |
|
return(1); |
1144 |
|
|
1145 |
|
} |
1149 |
|
smNext_tri_flag_set(sm,i,which,b) |
1150 |
|
SM *sm; |
1151 |
|
int i,which; |
1152 |
< |
char b; |
1152 |
> |
int b; |
1153 |
|
{ |
1154 |
|
|
1155 |
|
for(; i < SM_TRI_CNT(sm);i++) |
1156 |
|
{ |
1040 |
– |
if(!SM_IS_NTH_T_FLAG(sm,i,which)) |
1041 |
– |
continue; |
1157 |
|
|
1158 |
+ |
if(!SM_IS_NTH_T_FLAG(sm,i,which)) |
1159 |
+ |
continue; |
1160 |
|
if(!b) |
1161 |
|
break; |
1162 |
|
if((b==1) && !SM_BG_TRI(sm,i)) |
1183 |
|
|
1184 |
|
|
1185 |
|
|
1186 |
< |
qtTri_verts_from_id(t_id,v0,v1,v2) |
1186 |
> |
qtTri_from_id(t_id,v0,v1,v2,n0,n1,n2,v0_idp,v1_idp,v2_idp) |
1187 |
|
int t_id; |
1188 |
|
FVECT v0,v1,v2; |
1189 |
+ |
FVECT n0,n1,n2; |
1190 |
+ |
int *v0_idp,*v1_idp,*v2_idp; |
1191 |
|
{ |
1192 |
|
TRI *t; |
1193 |
|
int v0_id,v1_id,v2_id; |
1197 |
|
v1_id = T_NTH_V(t,1); |
1198 |
|
v2_id = T_NTH_V(t,2); |
1199 |
|
|
1200 |
< |
smDir(smMesh,v0,v0_id); |
1201 |
< |
smDir(smMesh,v1,v1_id); |
1202 |
< |
smDir(smMesh,v2,v2_id); |
1200 |
> |
if(v0) |
1201 |
> |
{ |
1202 |
> |
VCOPY(v0,SM_NTH_WV(smMesh,v0_id)); |
1203 |
> |
VCOPY(v1,SM_NTH_WV(smMesh,v1_id)); |
1204 |
> |
VCOPY(v2,SM_NTH_WV(smMesh,v2_id)); |
1205 |
> |
} |
1206 |
> |
if(n0) |
1207 |
> |
{ |
1208 |
> |
smDir(smMesh,n0,v0_id); |
1209 |
> |
smDir(smMesh,n1,v1_id); |
1210 |
> |
smDir(smMesh,n2,v2_id); |
1211 |
|
|
1212 |
< |
} |
1212 |
> |
} |
1213 |
> |
if(v0_idp) |
1214 |
> |
{ |
1215 |
> |
*v0_idp = v0_id; |
1216 |
> |
*v1_idp = v1_id; |
1217 |
> |
*v2_idp = v2_id; |
1218 |
> |
} |
1219 |
> |
} |
1220 |
|
|
1221 |
|
|
1222 |
< |
int |
1223 |
< |
smIntersectTriSet(sm,t_set,orig,dir,pt) |
1222 |
> |
/* |
1223 |
> |
* int |
1224 |
> |
* smFindSamp(FVECT orig, FVECT dir) |
1225 |
> |
* |
1226 |
> |
* Find the closest sample to the given ray. Returns sample id, -1 on failure. |
1227 |
> |
* "dir" is assumed to be normalized |
1228 |
> |
*/ |
1229 |
> |
|
1230 |
> |
|
1231 |
> |
|
1232 |
> |
smRebuild_mesh(sm,vp) |
1233 |
|
SM *sm; |
1234 |
+ |
FVECT vp; |
1235 |
+ |
{ |
1236 |
+ |
int i; |
1237 |
+ |
FVECT dir; |
1238 |
+ |
COLR c; |
1239 |
+ |
FVECT p,ov; |
1240 |
+ |
|
1241 |
+ |
/* Clear the mesh- and rebuild using the current sample array */ |
1242 |
+ |
|
1243 |
+ |
VSUB(ov,vp,SM_VIEW_CENTER(sm)); |
1244 |
+ |
smInit_mesh(sm,vp); |
1245 |
+ |
|
1246 |
+ |
SM_FOR_ALL_SAMPLES(sm,i) |
1247 |
+ |
{ |
1248 |
+ |
if(SM_NTH_W_DIR(sm,i)==-1) |
1249 |
+ |
VADD(SM_NTH_WV(sm,i),SM_NTH_WV(sm,i),ov); |
1250 |
+ |
smAdd_sample_to_mesh(sm,NULL,NULL,NULL,i); |
1251 |
+ |
} |
1252 |
+ |
} |
1253 |
+ |
|
1254 |
+ |
int |
1255 |
+ |
intersect_tri_set(t_set,orig,dir,pt) |
1256 |
|
OBJECT *t_set; |
1257 |
|
FVECT orig,dir,pt; |
1258 |
|
{ |
1259 |
|
OBJECT *optr; |
1260 |
< |
int i,t_id,v_id; |
1261 |
< |
TRI *tri; |
1262 |
< |
FVECT p0,p1,p2; |
1263 |
< |
char type,which; |
1099 |
< |
int p0_id,p1_id,p2_id; |
1260 |
> |
int i,t_id,id; |
1261 |
> |
int pid0,pid1,pid2; |
1262 |
> |
FVECT p0,p1,p2,p; |
1263 |
> |
TRI *t; |
1264 |
|
|
1265 |
< |
for(optr = QT_SET_PTR(t_set),i = QT_SET_CNT(t_set); i > 0; i--) |
1265 |
> |
optr = QT_SET_PTR(t_set); |
1266 |
> |
for(i = QT_SET_CNT(t_set); i > 0; i--) |
1267 |
|
{ |
1268 |
|
t_id = QT_SET_NEXT_ELEM(optr); |
1269 |
< |
tri = SM_NTH_TRI(sm,t_id); |
1270 |
< |
p0_id = T_NTH_V(tri,0); |
1271 |
< |
p1_id = T_NTH_V(tri,1); |
1272 |
< |
p2_id = T_NTH_V(tri,2); |
1273 |
< |
VCOPY(p0,SM_NTH_WV(sm,p0_id)); |
1274 |
< |
VCOPY(p1,SM_NTH_WV(sm,p1_id)); |
1275 |
< |
VCOPY(p2,SM_NTH_WV(sm,p2_id)); |
1276 |
< |
if(type = ray_intersect_tri(orig,dir,p0,p1,p2,pt,&which)) |
1269 |
> |
|
1270 |
> |
t = SM_NTH_TRI(smMesh,t_id); |
1271 |
> |
pid0 = T_NTH_V(t,0); |
1272 |
> |
pid1 = T_NTH_V(t,1); |
1273 |
> |
pid2 = T_NTH_V(t,2); |
1274 |
> |
VCOPY(p0,SM_NTH_WV(smMesh,pid0)); |
1275 |
> |
VCOPY(p1,SM_NTH_WV(smMesh,pid1)); |
1276 |
> |
VCOPY(p2,SM_NTH_WV(smMesh,pid2)); |
1277 |
> |
if(ray_intersect_tri(orig,dir,p0,p1,p2,p)) |
1278 |
|
{ |
1279 |
< |
if(type==GT_VERTEX) |
1280 |
< |
return(T_NTH_V(tri,which)); |
1281 |
< |
v_id = smClosest_vertex_in_w_tri(sm,p0_id,p1_id,p2_id,pt); |
1282 |
< |
return(v_id); |
1279 |
> |
id = closest_point_in_tri(p0,p1,p2,p,pid0,pid1,pid2); |
1280 |
> |
|
1281 |
> |
if(pt) |
1282 |
> |
VCOPY(pt,p); |
1283 |
> |
#ifdef DEBUG_TEST_DRIVER |
1284 |
> |
Pick_tri = t_id; |
1285 |
> |
Pick_samp = id; |
1286 |
> |
VCOPY(Pick_point[0],p); |
1287 |
> |
#endif |
1288 |
> |
return(id); |
1289 |
|
} |
1290 |
|
} |
1291 |
|
return(-1); |
1292 |
|
} |
1293 |
|
|
1294 |
< |
/* |
1295 |
< |
* int |
1296 |
< |
* smTraceRay(SM *sm,FVECT orig, FVECT dir,FVECT v0,FVECT v1,FVECT v2,FVECT r) |
1297 |
< |
* |
1298 |
< |
* Intersect the ray with triangle v0v1v2, return intersection point in r |
1299 |
< |
* |
1128 |
< |
* Assumes orig,v0,v1,v2 are in spherical coordinates, and orig is |
1129 |
< |
* unit |
1130 |
< |
*/ |
1131 |
< |
char |
1132 |
< |
smTraceRay(sm,orig,dir,v0,v1,v2,r) |
1133 |
< |
SM *sm; |
1134 |
< |
FVECT orig,dir; |
1135 |
< |
FVECT v0,v1,v2; |
1136 |
< |
FVECT r; |
1294 |
> |
int |
1295 |
> |
ray_trace_check_set(qtptr,orig,dir,tptr,os) |
1296 |
> |
QUADTREE *qtptr; |
1297 |
> |
FVECT orig,dir; |
1298 |
> |
int *tptr; |
1299 |
> |
OBJECT *os; |
1300 |
|
{ |
1301 |
< |
FVECT n,p[3],d; |
1302 |
< |
double pt[3],r_eps; |
1303 |
< |
char i; |
1304 |
< |
int which; |
1305 |
< |
|
1306 |
< |
/* Find the plane equation for the triangle defined by the edge v0v1 and |
1307 |
< |
the view center*/ |
1308 |
< |
VCROSS(n,v0,v1); |
1309 |
< |
/* Intersect the ray with this plane */ |
1310 |
< |
i = intersect_ray_plane(orig,dir,n,0.0,&(pt[0]),p[0]); |
1311 |
< |
if(i) |
1312 |
< |
which = 0; |
1313 |
< |
else |
1314 |
< |
which = -1; |
1315 |
< |
|
1316 |
< |
VCROSS(n,v1,v2); |
1317 |
< |
i = intersect_ray_plane(orig,dir,n,0.0,&(pt[1]),p[1]); |
1318 |
< |
if(i) |
1319 |
< |
if((which==-1) || pt[1] < pt[0]) |
1320 |
< |
which = 1; |
1321 |
< |
|
1159 |
< |
VCROSS(n,v2,v0); |
1160 |
< |
i = intersect_ray_plane(orig,dir,n,0.0,&(pt[2]),p[2]); |
1161 |
< |
if(i) |
1162 |
< |
if((which==-1) || pt[2] < pt[which]) |
1163 |
< |
which = 2; |
1164 |
< |
|
1165 |
< |
if(which != -1) |
1166 |
< |
{ |
1167 |
< |
/* Return point that is K*eps along projection of the ray on |
1168 |
< |
the sphere to push intersection point p[which] into next cell |
1169 |
< |
*/ |
1170 |
< |
normalize(p[which]); |
1171 |
< |
/* Calculate the ray perpendicular to the intersection point: approx |
1172 |
< |
the direction moved along the sphere a distance of K*epsilon*/ |
1173 |
< |
r_eps = -DOT(p[which],dir); |
1174 |
< |
VSUM(n,dir,p[which],r_eps); |
1175 |
< |
/* Calculate the length along ray p[which]-dir needed to move to |
1176 |
< |
cause a move along the sphere of k*epsilon |
1177 |
< |
*/ |
1178 |
< |
r_eps = DOT(n,dir); |
1179 |
< |
VSUM(r,p[which],dir,(20*FTINY)/r_eps); |
1180 |
< |
normalize(r); |
1181 |
< |
return(TRUE); |
1182 |
< |
} |
1183 |
< |
else |
1184 |
< |
{ |
1185 |
< |
/* Unable to find intersection: move along ray and try again */ |
1186 |
< |
r_eps = -DOT(orig,dir); |
1187 |
< |
VSUM(n,dir,orig,r_eps); |
1188 |
< |
r_eps = DOT(n,dir); |
1189 |
< |
VSUM(r,orig,dir,(20*FTINY)/r_eps); |
1190 |
< |
normalize(r); |
1191 |
< |
#ifdef DEBUG |
1192 |
< |
eputs("smTraceRay:Ray does not intersect triangle"); |
1193 |
< |
#endif |
1194 |
< |
return(FALSE); |
1195 |
< |
} |
1301 |
> |
OBJECT tset[QT_MAXSET+1]; |
1302 |
> |
double dt,t; |
1303 |
> |
int found; |
1304 |
> |
FVECT o; |
1305 |
> |
|
1306 |
> |
|
1307 |
> |
if(!QT_IS_EMPTY(*qtptr)) |
1308 |
> |
{ |
1309 |
> |
VADD(o,orig,SM_VIEW_CENTER(smMesh)); |
1310 |
> |
qtgetset(tset,*qtptr); |
1311 |
> |
/* Check triangles in set against those seen so far(os):only |
1312 |
> |
check new triangles for intersection (t_set') |
1313 |
> |
*/ |
1314 |
> |
check_set(tset,os); |
1315 |
> |
if((found = intersect_tri_set(tset,o,dir,NULL))!= -1) |
1316 |
> |
{ |
1317 |
> |
*tptr = found; |
1318 |
> |
return(QT_DONE); |
1319 |
> |
} |
1320 |
> |
} |
1321 |
> |
return(FALSE); |
1322 |
|
} |
1323 |
|
|
1198 |
– |
|
1199 |
– |
/* |
1200 |
– |
* int |
1201 |
– |
* smFindSamp(FVECT orig, FVECT dir) |
1202 |
– |
* |
1203 |
– |
* Find the closest sample to the given ray. Returns sample id, -1 on failure. |
1204 |
– |
* "dir" is assumed to be normalized |
1205 |
– |
*/ |
1324 |
|
int |
1325 |
|
smFindSamp(orig,dir) |
1326 |
|
FVECT orig,dir; |
1327 |
|
{ |
1328 |
< |
FVECT r,v0,v1,v2,a,b,p; |
1329 |
< |
OBJECT os[MAXCSET+1],t_set[MAXSET+1]; |
1328 |
> |
FVECT b,p,o; |
1329 |
> |
OBJECT *ts; |
1330 |
|
QUADTREE qt; |
1331 |
|
int s_id; |
1332 |
|
double d; |
1346 |
|
either case, do a single test against the cell containing the |
1347 |
|
intersection of "dir" and the sphere |
1348 |
|
*/ |
1349 |
+ |
/* orig will be updated-so preserve original value */ |
1350 |
+ |
if(!smMesh) |
1351 |
+ |
return; |
1352 |
|
point_on_sphere(b,orig,SM_VIEW_CENTER(smMesh)); |
1353 |
|
d = -DOT(b,dir); |
1354 |
|
if(EQUAL_VEC3(orig,SM_VIEW_CENTER(smMesh)) || EQUAL(fabs(d),1.0)) |
1355 |
|
{ |
1356 |
< |
qt = smPointLocateCell(smMesh,dir,NULL,NULL,FALSE); |
1356 |
> |
qt = smPointLocateCell(smMesh,dir,FALSE,NULL,NULL,NULL); |
1357 |
|
/* Test triangles in the set for intersection with Ray:returns |
1358 |
|
first found |
1359 |
|
*/ |
1360 |
< |
qtgetset(t_set,qt); |
1361 |
< |
s_id = smIntersectTriSet(smMesh,t_set,orig,dir,p); |
1362 |
< |
#ifdef TEST_DRIVER |
1360 |
> |
ts = qtqueryset(qt); |
1361 |
> |
s_id = intersect_tri_set(ts,orig,dir,p); |
1362 |
> |
#ifdef DEBUG_TEST_DRIVER |
1363 |
|
VCOPY(Pick_point[0],p); |
1364 |
|
#endif |
1244 |
– |
return(s_id); |
1365 |
|
} |
1366 |
|
else |
1367 |
|
{ |
1368 |
< |
/* Starting with orig, Walk along projection of ray onto sphere */ |
1369 |
< |
point_on_sphere(r,orig,SM_VIEW_CENTER(smMesh)); |
1370 |
< |
qt = smPointLocateCell(smMesh,r,NULL,NULL,FALSE); |
1371 |
< |
qtgetset(t_set,qt); |
1372 |
< |
/* os will contain all triangles seen thus far */ |
1373 |
< |
setcopy(os,t_set); |
1374 |
< |
|
1375 |
< |
/* Calculate ray perpendicular to dir: when projection ray is // to dir, |
1256 |
< |
the dot product will become negative. |
1257 |
< |
*/ |
1258 |
< |
VSUM(a,b,dir,d); |
1259 |
< |
d = DOT(a,b); |
1260 |
< |
while(d > 0) |
1261 |
< |
{ |
1262 |
< |
s_id = smIntersectTriSet(smMesh,t_set,orig,dir,p); |
1263 |
< |
#ifdef TEST_DRIVER |
1264 |
< |
VCOPY(Pick_point[0],p); |
1265 |
< |
#endif |
1266 |
< |
if(s_id != EMPTY) |
1267 |
< |
return(s_id); |
1268 |
< |
/* Find next cell that projection of ray intersects */ |
1269 |
< |
smTraceRay(smMesh,r,dir,v0,v1,v2,r); |
1270 |
< |
qt = smPointLocateCell(smMesh,r,NULL,NULL,FALSE); |
1271 |
< |
qtgetset(t_set,qt); |
1272 |
< |
/* Check triangles in set against those seen so far(os):only |
1273 |
< |
check new triangles for intersection (t_set') |
1274 |
< |
*/ |
1275 |
< |
check_set(t_set,os); |
1276 |
< |
d = DOT(a,r); |
1277 |
< |
} |
1278 |
< |
} |
1279 |
< |
#ifdef DEBUG |
1280 |
< |
eputs("smFindSamp():Pick Ray did not intersect mesh"); |
1281 |
< |
#endif |
1282 |
< |
return(EMPTY); |
1368 |
> |
OBJECT t_set[QT_MAXCSET+1]; |
1369 |
> |
/* Test each of the root triangles against point id */ |
1370 |
> |
QT_CLEAR_SET(t_set); |
1371 |
> |
VSUB(o,orig,SM_VIEW_CENTER(smMesh)); |
1372 |
> |
ST_CLEAR_FLAGS(SM_LOCATOR(smMesh)); |
1373 |
> |
s_id=stTrace_ray(SM_LOCATOR(smMesh),o,dir,ray_trace_check_set,&s_id,t_set); |
1374 |
> |
} |
1375 |
> |
return(s_id); |
1376 |
|
} |
1284 |
– |
|
1377 |
|
|
1286 |
– |
smRebuild_mesh(sm,vptr) |
1287 |
– |
SM *sm; |
1288 |
– |
VIEW *vptr; |
1289 |
– |
{ |
1290 |
– |
int i; |
1291 |
– |
FVECT dir; |
1292 |
– |
COLR c; |
1293 |
– |
FVECT p,ov; |
1378 |
|
|
1295 |
– |
/* Clear the mesh- and rebuild using the current sample array */ |
1296 |
– |
#ifdef TEST_DRIVER |
1297 |
– |
View = *vptr; |
1298 |
– |
#endif |
1379 |
|
|
1380 |
< |
VSUB(ov,vptr->vp,SM_VIEW_CENTER(sm)); |
1381 |
< |
smInit_mesh(sm,vptr->vp); |
1382 |
< |
|
1383 |
< |
SM_FOR_ALL_SAMPLES(sm,i) |
1384 |
< |
{ |
1385 |
< |
if(SM_NTH_W_DIR(sm,i)==-1) |
1386 |
< |
VADD(SM_NTH_WV(sm,i),SM_NTH_WV(sm,i),ov); |
1307 |
< |
smAdd_sample_to_mesh(sm,NULL,NULL,NULL,i); |
1308 |
< |
} |
1309 |
< |
} |
1380 |
> |
|
1381 |
> |
|
1382 |
> |
|
1383 |
> |
|
1384 |
> |
|
1385 |
> |
|
1386 |
> |
|
1387 |
|
|
1388 |
|
|