5 |
|
#endif |
6 |
|
|
7 |
|
/* |
8 |
< |
* Routines for loading and displaying Radiance objects under OpenGL in rholo. |
8 |
> |
* Routines for loading and displaying Radiance objects in rholo with GLX. |
9 |
|
*/ |
10 |
|
|
11 |
|
#include "radogl.h" |
22 |
|
|
23 |
|
#define AVGREFL 0.5 /* assumed average reflectance */ |
24 |
|
|
25 |
< |
#define MAXAC 64 /* maximum number of args */ |
25 |
> |
#define MAXAC 512 /* maximum number of args */ |
26 |
|
|
27 |
|
#ifndef MINTHRESH |
28 |
< |
#define MINTHRESH 7.0 /* source threshold w.r.t. mean */ |
28 |
> |
#define MINTHRESH 5.0 /* source threshold w.r.t. mean */ |
29 |
|
#endif |
30 |
|
|
31 |
|
#ifndef NALT |
69 |
|
static int lastxfac; /* last number of transform args */ |
70 |
|
static char *lastxfav[MAXAC+1]; /* saved transform arguments */ |
71 |
|
|
72 |
+ |
#define getdcent(c,op) multp3(c,(op)->center,(op)->xfb.f.xfm) |
73 |
+ |
#define getdrad(op) ((op)->radius*(op)->xfb.f.sca) |
74 |
+ |
|
75 |
|
#define RTARGC 8 |
76 |
|
static char *rtargv[RTARGC+1] = {"rtrace", "-h-", "-w-", "-fdd", |
77 |
|
"-x", "1", "-oL"}; |
282 |
|
ncells++; |
283 |
|
} |
284 |
|
if (dlightsets == NULL | ncells < NALT*NAZI/4) { |
285 |
< |
bzero((char *)ssamp, sizeof(ssamp)); |
286 |
< |
return(0); |
285 |
> |
ncells = 0; |
286 |
> |
goto done; |
287 |
|
} |
288 |
|
/* harmonic mean distance */ |
289 |
|
if (dlightsets->ravg > FTINY) |
292 |
|
dlightsets->ravg = FHUGE; |
293 |
|
/* light source threshold */ |
294 |
|
thresh = MINTHRESH*bright(csum)/ncells; |
295 |
+ |
if (thresh <= FTINY) { |
296 |
+ |
ncells = 0; |
297 |
+ |
goto done; |
298 |
+ |
} |
299 |
|
/* avg. reflected brightness */ |
300 |
|
d = AVGREFL / (double)ncells; |
301 |
|
scalecolor(csum, d); |
302 |
|
if (tmCvColors(&dlightsets->larb, TM_NOCHROM, csum, 1) != TM_E_OK) |
303 |
< |
error(CONSISTENCY, "bad tone mapping in ssph_compute"); |
303 |
> |
error(CONSISTENCY, "tone mapping problem in ssph_compute"); |
304 |
|
/* greedy light source clustering */ |
305 |
|
while (dlightsets->nl < MAXLIGHTS) { |
306 |
|
maxbr = 0.; /* find brightest cell */ |
320 |
|
continue; /* too dim */ |
321 |
|
ssph_direc(v, alt, azi); /* else add it in */ |
322 |
|
VSUM(ls->direc, ls->direc, v, d); |
323 |
< |
ls->omega++; |
323 |
> |
ls->omega += 1.; |
324 |
|
addcolor(ls->val, ssamp[alt][azi].val); |
325 |
+ |
/* remove from list */ |
326 |
|
setcolor(ssamp[alt][azi].val, 0., 0., 0.); |
327 |
+ |
ssamp[alt][azi].nsamp = 0; |
328 |
|
} |
329 |
|
d = 1./ls->omega; /* avg. brightness */ |
330 |
|
scalecolor(ls->val, d); |
338 |
|
addcolor(dlightsets->lamb, ssamp[alt][azi].val); |
339 |
|
d = 1.0/ncells; |
340 |
|
scalecolor(dlightsets->lamb, d); |
341 |
< |
/* clear sphere sample array */ |
341 |
> |
done: /* clear sphere sample array */ |
342 |
|
bzero((char *)ssamp, sizeof(ssamp)); |
343 |
|
return(ncells); |
344 |
|
} |
358 |
|
if (op->drawcode != DO_LIGHT) |
359 |
|
return(0); |
360 |
|
/* check for usable light set */ |
361 |
< |
multp3(ocent, op->center, op->xfb.f.xfm); |
361 |
> |
getdcent(ocent, op); |
362 |
|
for (dl = dlightsets; dl != NULL; dl = dl->next) |
363 |
|
if ((d2 = dist2(dl->lcent, ocent)) < mind2) { |
364 |
|
op->ol = dl; |
365 |
|
mind2 = d2; |
366 |
|
} |
367 |
|
/* the following is heuristic */ |
368 |
< |
d2 = 2.*op->radius*op->xfb.f.sca; d2 *= d2; |
368 |
> |
d2 = 2.*getdrad(op); d2 *= d2; |
369 |
|
if ((dl = op->ol) != NULL && (mind2 < 0.0625*dl->ravg*dl->ravg || |
370 |
< |
mind2 < 4.*op->radius*op->xfb.f.sca*op->radius*op->xfb.f.sca)) |
370 |
> |
mind2 < 4.*getdrad(op)*getdrad(op))) |
371 |
|
return(1); |
372 |
|
if (!force) |
373 |
|
return(0); |
432 |
|
char *cmd; |
433 |
|
register char *args; |
434 |
|
{ |
435 |
+ |
int somechange = 0; |
436 |
+ |
VIEW sameview; |
437 |
|
int cn, na, doxfm; |
438 |
|
register int nn; |
439 |
|
char *alist[MAXAC+1], *nm; |
464 |
|
else |
465 |
|
return(cmderror(cn, "need octree [name]")); |
466 |
|
break; |
467 |
< |
case DO_UNLOAD: /* unload an object */ |
467 |
> |
case DO_UNLOAD: /* clear an object */ |
468 |
|
if (na > 1) goto toomany; |
469 |
|
if (na && alist[0][0] == '*') |
470 |
< |
dobj_cleanup(); |
470 |
> |
somechange += dobj_cleanup(); |
471 |
|
else |
472 |
< |
dobj_unload(na ? alist[0] : curname); |
472 |
> |
somechange += dobj_unload(na ? alist[0] : curname); |
473 |
|
break; |
474 |
|
case DO_XFORM: /* transform object */ |
475 |
|
case DO_MOVE: |
480 |
|
} |
481 |
|
if (cn == DO_MOVE && nn >= na) |
482 |
|
return(cmderror(cn, "missing transform")); |
483 |
< |
dobj_xform(nm, cn==DO_MOVE, na-nn, alist+nn); |
483 |
> |
somechange += dobj_xform(nm, cn==DO_MOVE, na-nn, alist+nn); |
484 |
|
break; |
485 |
|
case DO_UNMOVE: /* undo last transform */ |
486 |
< |
dobj_unmove(); |
486 |
> |
somechange += dobj_unmove(); |
487 |
|
break; |
488 |
|
case DO_OBJECT: /* print object statistics */ |
489 |
< |
dobj_putstats(na ? alist[0] : curname, sstdout); |
489 |
> |
if (dobj_putstats(na ? alist[0] : curname, sstdout)) |
490 |
> |
if (na && alist[0][0] != '*' && (curobj == NULL || |
491 |
> |
strcmp(alist[0], curobj->name))) |
492 |
> |
savedxf(curobj = getdobj(alist[0])); |
493 |
|
break; |
494 |
|
case DO_DUP: /* duplicate object */ |
495 |
|
for (nn = 0; nn < na; nn++) |
510 |
|
if (!dobj_dup(nm, alist[nn-1])) |
511 |
|
break; |
512 |
|
if (na > nn) |
513 |
< |
dobj_xform(curname, 1, na-nn, alist+nn); |
513 |
> |
somechange += dobj_xform(curname, 1, na-nn, alist+nn); |
514 |
|
else |
515 |
|
curobj->drawcode = DO_HIDE; |
516 |
+ |
savedxf(curobj); |
517 |
|
break; |
518 |
|
case DO_SHOW: /* change rendering option */ |
519 |
|
case DO_LIGHT: |
520 |
|
case DO_HIDE: |
521 |
|
if (na > 1) goto toomany; |
522 |
|
dobj_lighting(na ? alist[0] : curname, cn); |
523 |
+ |
somechange++; |
524 |
|
break; |
525 |
|
default: |
526 |
|
error(CONSISTENCY, "bad command id in dobj_command"); |
527 |
|
} |
528 |
< |
dev_view(&odev.v); /* redraw */ |
528 |
> |
if (somechange) { |
529 |
> |
copystruct(&sameview, &odev.v); /* make 'em think new view */ |
530 |
> |
dev_view(&sameview); /* redraw */ |
531 |
> |
} |
532 |
|
return(cn); |
533 |
|
toomany: |
534 |
|
return(cmderror(cn, "too many arguments")); |
554 |
|
error(COMMAND, "illegal name"); |
555 |
|
return(0); |
556 |
|
} |
557 |
+ |
if (getdobj(nam) != NULL) { |
558 |
+ |
error(COMMAND, "name already taken (clear first)"); |
559 |
+ |
return(0); |
560 |
+ |
} |
561 |
|
/* get octree path */ |
562 |
|
if ((fpp = getpath(oct, getlibpath(), R_OK)) == NULL) { |
563 |
|
sprintf(errmsg, "cannot find octree \"%s\"", oct); |
565 |
|
return(0); |
566 |
|
} |
567 |
|
strcpy(fpath, fpp); |
545 |
– |
freedobj(getdobj(nam)); /* free previous use of nam */ |
568 |
|
op = (DOBJECT *)malloc(sizeof(DOBJECT)); |
569 |
|
if (op == NULL) |
570 |
|
error(SYSTEM, "out of memory in dobj_load"); |
577 |
|
op->xfav[op->xfac=0] = NULL; |
578 |
|
/* load octree into display list */ |
579 |
|
dolights = 0; |
580 |
+ |
domats = 1; |
581 |
|
op->listid = rgl_octlist(fpath, op->center, &op->radius); |
582 |
|
/* start rtrace */ |
583 |
|
rtargv[RTARGC-1] = fpath; |
621 |
|
} |
622 |
|
|
623 |
|
|
624 |
< |
dobj_xform(nam, add, ac, av) /* set/add transform for nam */ |
624 |
> |
dobj_xform(nam, rel, ac, av) /* set/add transform for nam */ |
625 |
|
char *nam; |
626 |
< |
int add, ac; |
626 |
> |
int rel, ac; |
627 |
|
char **av; |
628 |
|
{ |
629 |
|
register DOBJECT *op; |
630 |
+ |
FVECT cent; |
631 |
+ |
double rad; |
632 |
+ |
char scoord[16]; |
633 |
+ |
int i; |
634 |
|
|
635 |
|
if ((op = getdobj(nam)) == NULL) { |
636 |
|
error(COMMAND, "no object"); |
637 |
|
return(0); |
638 |
|
} |
639 |
< |
if (add) add = op->xfac; |
640 |
< |
if (ac + add > MAXAC) { |
639 |
> |
if (rel) |
640 |
> |
rel = op->xfac + 8; |
641 |
> |
if (ac + rel > MAXAC) { |
642 |
|
error(COMMAND, "too many transform arguments"); |
643 |
|
return(0); |
644 |
|
} |
645 |
< |
savedxf(curobj = op); |
646 |
< |
if (!add) |
645 |
> |
savedxf(curobj = op); /* remember current transform */ |
646 |
> |
if (rel && ac == 4 && !strcmp(av[0], "-t")) |
647 |
> |
rel = -1; /* don't move for translate */ |
648 |
> |
else { |
649 |
> |
getdcent(cent, op); /* don't move if near orig. */ |
650 |
> |
rad = getdrad(op); |
651 |
> |
if (DOT(cent,cent) < rad*rad) |
652 |
> |
rel = -1; |
653 |
> |
} |
654 |
> |
if (!rel) { /* remove old transform */ |
655 |
|
while (op->xfac) |
656 |
|
freestr(op->xfav[--op->xfac]); |
657 |
+ |
} else if (rel > 0) { /* relative move */ |
658 |
+ |
op->xfav[op->xfac++] = savestr("-t"); |
659 |
+ |
for (i = 0; i < 3; i++) { |
660 |
+ |
sprintf(scoord, "%.4e", -cent[i]); |
661 |
+ |
op->xfav[op->xfac++] = savestr(scoord); |
662 |
+ |
} |
663 |
+ |
} |
664 |
|
while (ac--) |
665 |
|
op->xfav[op->xfac++] = savestr(*av++); |
666 |
+ |
if (rel > 0) { /* move back */ |
667 |
+ |
op->xfav[op->xfac++] = savestr("-t"); |
668 |
+ |
for (i = 0; i < 3; i++) { |
669 |
+ |
sprintf(scoord, "%.4e", cent[i]); |
670 |
+ |
op->xfav[op->xfac++] = savestr(scoord); |
671 |
+ |
} |
672 |
+ |
} |
673 |
|
op->xfav[op->xfac] = NULL; |
674 |
|
if (fullxf(&op->xfb, op->xfac, op->xfav) != op->xfac) { |
675 |
|
error(COMMAND, "bad transform arguments"); |
705 |
|
error(COMMAND, "unknown object"); |
706 |
|
return(0); |
707 |
|
} |
708 |
< |
multp3(ocent, op->center, op->xfb.f.xfm); |
709 |
< |
fprintf(fp, "%s: %s, center [%f %f %f], radius %f", op->name, |
710 |
< |
op->drawcode==DO_HIDE ? "hid" : |
711 |
< |
op->drawcode==DO_LIGHT && op->ol!=NULL ? "lit" : |
708 |
> |
getdcent(ocent, op); |
709 |
> |
fprintf(fp, "%s: %s, center [%g %g %g], radius %g", op->name, |
710 |
> |
op->drawcode==DO_HIDE ? "hidden" : |
711 |
> |
op->drawcode==DO_LIGHT && op->ol!=NULL ? "lighted" : |
712 |
|
"shown", |
713 |
< |
ocent[0],ocent[1],ocent[2], op->radius*op->xfb.f.sca); |
713 |
> |
ocent[0],ocent[1],ocent[2], getdrad(op)); |
714 |
|
if (op->xfac) |
715 |
|
fputs(", (xform", fp); |
716 |
|
for (i = 0; i < op->xfac; i++) { |
767 |
|
error(COMMAND, "illegal name"); |
768 |
|
return(0); |
769 |
|
} |
770 |
+ |
if (getdobj(nam) != NULL) { |
771 |
+ |
error(COMMAND, "name already taken (clear first)"); |
772 |
+ |
return(0); |
773 |
+ |
} |
774 |
|
/* allocate and copy struct */ |
775 |
|
opdup = (DOBJECT *)malloc(sizeof(DOBJECT)); |
776 |
|
if (opdup == NULL) |
810 |
|
} else if ((op = getdobj(nam)) == NULL) { |
811 |
|
error(COMMAND, "unknown object"); |
812 |
|
return(0); |
813 |
< |
} else if ((op->drawcode = cn) == DO_LIGHT) |
814 |
< |
getdlights(op, 1); |
815 |
< |
else |
813 |
> |
} else if ((op->drawcode = cn) == DO_LIGHT) { |
814 |
> |
if (!getdlights(op, 1)) |
815 |
> |
error(COMMAND, "insufficient samples to light object"); |
816 |
> |
} else |
817 |
|
op->ol = NULL; |
818 |
|
|
819 |
|
if (dobj_lightsamp != NULL) { /* restore beam set */ |
827 |
|
|
828 |
|
|
829 |
|
double |
830 |
< |
dobj_trace(rorg, rdir) /* check for ray intersection with objects */ |
830 |
> |
dobj_trace(nm, rorg, rdir) /* check for ray intersection with object(s) */ |
831 |
> |
char nm[]; |
832 |
|
FVECT rorg, rdir; |
833 |
|
{ |
834 |
|
register DOBJECT *op; |
835 |
|
FVECT xorg, xdir; |
836 |
< |
double darr[6], mindist = FHUGE; |
837 |
< |
/* check each visible object */ |
838 |
< |
for (op = dobjects; op != NULL; op = op->next) { |
839 |
< |
if (op->drawcode == DO_HIDE) |
840 |
< |
continue; |
841 |
< |
if (op->xfac) { /* transform ray */ |
842 |
< |
multp3(xorg, rorg, op->xfb.b.xfm); |
843 |
< |
multv3(xdir, rdir, op->xfb.b.xfm); |
844 |
< |
VCOPY(darr, xorg); VCOPY(darr+3, xdir); |
845 |
< |
} else { |
846 |
< |
VCOPY(darr, rorg); VCOPY(darr+3, rdir); |
836 |
> |
double darr[6]; |
837 |
> |
/* check each visible object? */ |
838 |
> |
if (nm == NULL || *nm == '*') { |
839 |
> |
double dist, mindist = 1.01*FHUGE; |
840 |
> |
|
841 |
> |
if (nm != NULL) nm[0] = '\0'; |
842 |
> |
for (op = dobjects; op != NULL; op = op->next) { |
843 |
> |
if (op->drawcode == DO_HIDE) |
844 |
> |
continue; |
845 |
> |
dist = dobj_trace(op->name, rorg, rdir); |
846 |
> |
if (dist < mindist) { |
847 |
> |
if (nm != NULL) strcpy(nm, op->name); |
848 |
> |
mindist = dist; |
849 |
> |
} |
850 |
|
} |
851 |
< |
/* trace it */ |
793 |
< |
if (process(op->rtp, darr, darr, sizeof(double), |
794 |
< |
6*sizeof(double)) != sizeof(double)) |
795 |
< |
error(SYSTEM, "rtrace communication error"); |
796 |
< |
/* get closest */ |
797 |
< |
if ((darr[0] *= op->xfb.f.sca) < mindist) |
798 |
< |
mindist = darr[0]; |
851 |
> |
return(mindist); |
852 |
|
} |
853 |
< |
return(mindist); |
853 |
> |
/* else check particular object */ |
854 |
> |
if ((op = getdobj(nm)) == NULL) { |
855 |
> |
error(COMMAND, "unknown object"); |
856 |
> |
return(FHUGE); |
857 |
> |
} |
858 |
> |
if (op->xfac) { /* put ray in local coordinates */ |
859 |
> |
multp3(xorg, rorg, op->xfb.b.xfm); |
860 |
> |
multv3(xdir, rdir, op->xfb.b.xfm); |
861 |
> |
VCOPY(darr, xorg); VCOPY(darr+3, xdir); |
862 |
> |
} else { |
863 |
> |
VCOPY(darr, rorg); VCOPY(darr+3, rdir); |
864 |
> |
} |
865 |
> |
/* trace it */ |
866 |
> |
if (process(op->rtp, darr, darr, sizeof(double), |
867 |
> |
6*sizeof(double)) != sizeof(double)) |
868 |
> |
error(SYSTEM, "rtrace communication error"); |
869 |
> |
/* return distance */ |
870 |
> |
if (darr[0] >= .99*FHUGE) |
871 |
> |
return(FHUGE); |
872 |
> |
return(darr[0]*op->xfb.f.sca); |
873 |
|
} |
874 |
|
|
875 |
|
|
876 |
+ |
int |
877 |
|
dobj_render() /* render our objects in OpenGL */ |
878 |
|
{ |
879 |
+ |
int nrendered = 0; |
880 |
|
GLboolean normalizing; |
881 |
|
GLfloat vec[4]; |
882 |
+ |
FVECT v1; |
883 |
|
register DOBJECT *op; |
884 |
|
register int i; |
885 |
|
/* anything to render? */ |
887 |
|
if (op->drawcode != DO_HIDE) |
888 |
|
break; |
889 |
|
if (op == NULL) |
890 |
< |
return(1); |
890 |
> |
return(0); |
891 |
|
/* set up general rendering params */ |
892 |
|
glGetBooleanv(GL_NORMALIZE, &normalizing); |
893 |
< |
glPushAttrib(GL_LIGHTING_BIT|GL_TRANSFORM_BIT| |
894 |
< |
GL_DEPTH_BUFFER_BIT|GL_POLYGON_BIT); |
893 |
> |
glPushAttrib(GL_LIGHTING_BIT|GL_TRANSFORM_BIT|GL_ENABLE_BIT| |
894 |
> |
GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_POLYGON_BIT); |
895 |
|
glDepthFunc(GL_LESS); |
896 |
|
glEnable(GL_DEPTH_TEST); |
897 |
|
glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE); |
911 |
|
if (op->drawcode == DO_LIGHT && op->ol != NULL) { |
912 |
|
BYTE pval; |
913 |
|
double expval, d; |
914 |
< |
|
914 |
> |
/* use computed sources */ |
915 |
|
if (tmMapPixels(&pval, &op->ol->larb, TM_NOCHROM, 1) |
916 |
|
!= TM_E_OK) |
917 |
|
error(CONSISTENCY, "dobj_render w/o tone map"); |
937 |
|
glLightfv(glightid[i], GL_AMBIENT, vec); |
938 |
|
glEnable(glightid[i]); |
939 |
|
} |
940 |
< |
} else { |
941 |
< |
vec[0] = vec[1] = vec[2] = 1.; vec[3] = 1.; |
940 |
> |
} else { /* fake lighting */ |
941 |
> |
vec[0] = vec[1] = vec[2] = 0.; vec[3] = 1.; |
942 |
|
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, vec); |
943 |
+ |
getdcent(v1, op); |
944 |
+ |
VSUB(v1, odev.v.vp, v1); |
945 |
+ |
if (normalize(v1) <= getdrad(op)) { |
946 |
+ |
vec[0] = -odev.v.vdir[0]; |
947 |
+ |
vec[1] = -odev.v.vdir[1]; |
948 |
+ |
vec[2] = -odev.v.vdir[2]; |
949 |
+ |
} else |
950 |
+ |
VCOPY(vec, v1); |
951 |
+ |
vec[3] = 0.; |
952 |
+ |
glLightfv(GL_LIGHT0, GL_POSITION, vec); |
953 |
+ |
vec[0] = vec[1] = vec[2] = .7; vec[3] = 1.; |
954 |
+ |
glLightfv(GL_LIGHT0, GL_SPECULAR, vec); |
955 |
+ |
glLightfv(GL_LIGHT0, GL_DIFFUSE, vec); |
956 |
+ |
vec[0] = vec[1] = vec[2] = .3; vec[3] = 1.; |
957 |
+ |
glLightfv(GL_LIGHT0, GL_AMBIENT, vec); |
958 |
+ |
glEnable(GL_LIGHT0); |
959 |
|
} |
960 |
|
/* set up object transform */ |
961 |
|
if (op->xfac) { |
973 |
|
} |
974 |
|
/* render the display list */ |
975 |
|
glCallList(op->listid); |
976 |
+ |
nrendered++; |
977 |
|
/* restore matrix */ |
978 |
|
if (op->xfac) { |
979 |
|
glMatrixMode(GL_MODELVIEW); |
985 |
|
if (op->drawcode == DO_LIGHT && op->ol != NULL) |
986 |
|
for (i = op->ol->nl; i--; ) |
987 |
|
glDisable(glightid[i]); |
988 |
+ |
else |
989 |
+ |
glDisable(GL_LIGHT0); |
990 |
|
/* check errors */ |
897 |
– |
rgl_checkerr("rendering object in dobj_render"); |
991 |
|
} |
992 |
|
glPopAttrib(); /* restore rendering params */ |
993 |
< |
return(1); |
993 |
> |
rgl_checkerr("rendering objects in dobj_render"); |
994 |
> |
return(nrendered); |
995 |
|
} |