| 9 |  | */ | 
| 10 |  |  | 
| 11 |  | #include "ray.h" | 
| 12 | + | #include "platform.h" | 
| 13 |  | #include "source.h" | 
| 14 | + | #include "func.h" | 
| 15 |  | #include "view.h" | 
| 16 |  | #include "random.h" | 
| 17 |  |  | 
| 18 |  | #define DEGREE          (PI/180.) | 
| 19 |  |  | 
| 20 | < | #define MAXNT           180     /* maximum number of theta divisions */ | 
| 20 | > | #define MAXNT           181     /* maximum number of theta divisions */ | 
| 21 |  | #define MAXNP           360     /* maximum number of phi divisions */ | 
| 22 |  |  | 
| 21 | – | extern char     *progname;      /* global argv[0] */ | 
| 23 |  | extern int      nowarn;         /* don't report warnings? */ | 
| 24 |  |  | 
| 25 |  | /* current sensor's perspective */ | 
| 26 | < | VIEW            ourview = STDVIEW; | 
| 26 | > | VIEW            ourview =  {VT_ANG,{0.,0.,0.},{0.,0.,1.},{1.,0.,0.}, | 
| 27 | > | 1.,180.,180.,0.,0.,0.,0., | 
| 28 | > | {0.,0.,0.},{0.,0.,0.},0.,0.}; | 
| 29 |  |  | 
| 30 | < | unsigned long   nsamps = 10000; /* desired number of initial samples */ | 
| 28 | < | unsigned long   nssamps = 9000; /* number of super-samples */ | 
| 30 | > | long            nsamps = 10000; /* desired number of initial samples */ | 
| 31 |  | int             ndsamps = 32;   /* number of direct samples */ | 
| 32 |  | int             nprocs = 1;     /* number of rendering processes */ | 
| 33 |  |  | 
| 34 |  | float           *sensor = NULL; /* current sensor data */ | 
| 35 |  | int             sntp[2];        /* number of sensor theta and phi angles */ | 
| 36 |  | float           maxtheta;       /* maximum theta value for this sensor */ | 
| 37 | < | float           tvals[MAXNT+1]; /* theta values (1-D table of 1-cos(t)) */ | 
| 38 | < | float           *pvals = NULL;  /* phi values (2-D table in radians) */ | 
| 37 | > | float           tvals[MAXNT+1]; /* theta prob. values (1-D table of 1-cos(t)) */ | 
| 38 | > | float           *pvals = NULL;  /* phi prob. values (2-D table in radians) */ | 
| 39 |  | int             ntheta = 0;     /* polar angle divisions */ | 
| 40 |  | int             nphi = 0;       /* azimuthal angle divisions */ | 
| 41 |  | double          gscale = 1.;    /* global scaling value */ | 
| 59 |  | over_options(); | 
| 60 |  | printf("-n %-9d\t\t\t# number of processes\n", nprocs); | 
| 61 |  | printf("-rd %-9ld\t\t\t# ray directions\n", nsamps); | 
| 60 | – | /* printf("-rs %-9ld\t\t\t# ray super-samples\n", nssamps); */ | 
| 62 |  | printf("-dn %-9d\t\t\t# direct number of samples\n", ndsamps); | 
| 63 |  | printf("-vp %f %f %f\t# view point\n", | 
| 64 |  | ourview.vp[0], ourview.vp[1], ourview.vp[2]); | 
| 70 |  | print_rdefaults(); | 
| 71 |  | } | 
| 72 |  |  | 
| 73 | + |  | 
| 74 | + | void | 
| 75 | + | quit(ec)                        /* make sure exit is called */ | 
| 76 | + | int     ec; | 
| 77 | + | { | 
| 78 | + | if (ray_pnprocs > 0)    /* close children if any */ | 
| 79 | + | ray_pclose(0); | 
| 80 | + | else if (ray_pnprocs < 0) | 
| 81 | + | _exit(ec);      /* avoid flush in child */ | 
| 82 | + | exit(ec); | 
| 83 | + | } | 
| 84 | + |  | 
| 85 | + |  | 
| 86 |  | int | 
| 87 |  | main( | 
| 88 |  | int     argc, | 
| 92 |  | int     doheader = 1; | 
| 93 |  | int     optwarn = 0; | 
| 94 |  | int     i, rval; | 
| 95 | < |  | 
| 96 | < | progname = argv[0]; | 
| 95 | > | /* set global progname */ | 
| 96 | > | fixargv0(argv[0]); | 
| 97 |  | /* set up rendering defaults */ | 
| 98 |  | rand_samp = 1; | 
| 99 | < | dstrsrc = 0.5; | 
| 99 | > | dstrsrc = 0.65; | 
| 100 |  | srcsizerat = 0.1; | 
| 101 |  | directrelay = 3; | 
| 102 |  | ambounce = 1; | 
| 103 |  | maxdepth = -10; | 
| 104 | + | /* initialize calcomp routines */ | 
| 105 | + | initfunc(); | 
| 106 |  | /* get options from command line */ | 
| 107 |  | for (i = 1; i < argc; i++) { | 
| 108 |  | while ((rval = expandarg(&argc, &argv, i)) > 0) | 
| 117 |  | if (!ray_pnprocs) { | 
| 118 |  | over_options(); | 
| 119 |  | if (doheader) { /* print header */ | 
| 120 | + | newheader("RADIANCE", stdout); | 
| 121 |  | printargs(argc, argv, stdout); | 
| 122 |  | fputformat("ascii", stdout); | 
| 123 |  | putchar('\n'); | 
| 124 |  | } | 
| 125 |  | /* start process(es) */ | 
| 126 | < | ray_pinit(argv[argc-1], nprocs); | 
| 126 | > | if (strcmp(argv[argc-1], ".")) | 
| 127 | > | ray_pinit(argv[argc-1], nprocs); | 
| 128 |  | } | 
| 129 |  | comp_sensor(argv[i]);   /* process a sensor file */ | 
| 130 |  | continue; | 
| 132 |  | if (argv[i][1] == 'r') {        /* sampling options */ | 
| 133 |  | if (argv[i][2] == 'd') | 
| 134 |  | nsamps = atol(argv[++i]); | 
| 117 | – | else if (argv[i][2] == 's') | 
| 118 | – | nssamps = atol(argv[++i]); | 
| 135 |  | else { | 
| 136 |  | sprintf(errmsg, "bad option at '%s'", argv[i]); | 
| 137 |  | error(USER, errmsg); | 
| 196 |  | } | 
| 197 |  | i += rval; | 
| 198 |  | } | 
| 199 | < | if (!ray_pnprocs) | 
| 199 | > | if (sensor == NULL) | 
| 200 |  | error(USER, i<argc ? "missing sensor file" : "missing octree"); | 
| 201 |  | quit(0); | 
| 202 |  | } | 
| 208 |  | char    *sfile | 
| 209 |  | ) | 
| 210 |  | { | 
| 211 | + | int     warnedneg; | 
| 212 |  | char    linebuf[8192]; | 
| 213 | + | int     last_pos_val = 0; | 
| 214 |  | int     nelem = 1000; | 
| 215 |  | float   *sarr = (float *)malloc(sizeof(float)*nelem); | 
| 216 |  | FILE    *fp; | 
| 238 |  | cp = fskip(cp); | 
| 239 |  | if (cp == NULL) | 
| 240 |  | break; | 
| 241 | + | if (ntp[1] > 1 && sarr[ntp[1]+1] <= sarr[ntp[1]]+FTINY) { | 
| 242 | + | sprintf(errmsg, | 
| 243 | + | "Phi values not monotinically increasing in sensor file '%s'", | 
| 244 | + | sfile); | 
| 245 | + | error(USER, errmsg); | 
| 246 | + | } | 
| 247 |  | ++ntp[1]; | 
| 248 |  | } | 
| 249 | + | warnedneg = 0; | 
| 250 |  | ntp[0] = 0;                             /* get thetas + data */ | 
| 251 |  | while (fgets(linebuf, sizeof(linebuf), fp) != NULL) { | 
| 252 |  | ++ntp[0]; | 
| 264 |  | cp = fskip(cp); | 
| 265 |  | if (cp == NULL) | 
| 266 |  | break; | 
| 267 | + | if (sarr[i] < .0) { | 
| 268 | + | if (!warnedneg++) { | 
| 269 | + | sprintf(errmsg, | 
| 270 | + | "Negative value(s) in sensor file '%s' (ignored)\n", sfile); | 
| 271 | + | error(WARNING, errmsg); | 
| 272 | + | } | 
| 273 | + | sarr[i] = .0; | 
| 274 | + | } else if (sarr[i] > FTINY && i > ntp[0]*(ntp[1]+1)) | 
| 275 | + | last_pos_val = i; | 
| 276 |  | ++i; | 
| 277 |  | } | 
| 278 | < | if (i == ntp[0]*(ntp[1]+1)) | 
| 278 | > | if (i == ntp[0]*(ntp[1]+1))     /* empty line? */ | 
| 279 |  | break; | 
| 280 | + | if (ntp[0] > 1 && sarr[ntp[0]*(ntp[1]+1)] <= | 
| 281 | + | sarr[(ntp[0]-1)*(ntp[1]+1)]) { | 
| 282 | + | sprintf(errmsg, | 
| 283 | + | "Theta values not monotinically increasing in sensor file '%s'", | 
| 284 | + | sfile); | 
| 285 | + | error(USER, errmsg); | 
| 286 | + | } | 
| 287 |  | if (i != (ntp[0]+1)*(ntp[1]+1)) { | 
| 288 |  | sprintf(errmsg, | 
| 289 |  | "bad column count near line %d in sensor file '%s'", | 
| 291 |  | error(USER, errmsg); | 
| 292 |  | } | 
| 293 |  | } | 
| 294 | < | nelem = i; | 
| 294 | > | /* truncate zero region */ | 
| 295 | > | ntp[0] = (last_pos_val + ntp[1])/(ntp[1]+1) - 1; | 
| 296 | > | nelem = (ntp[0]+1)*(ntp[1]+1); | 
| 297 |  | fclose(fp); | 
| 298 |  | errmsg[0] = '\0';                       /* sanity checks */ | 
| 299 | < | if (ntp[0] <= 0) | 
| 300 | < | sprintf(errmsg, "no data in sensor file '%s'", sfile); | 
| 299 | > | if (!last_pos_val) | 
| 300 | > | sprintf(errmsg, "no positive sensor values in file '%s'", sfile); | 
| 301 |  | else if (fabs(sarr[ntp[1]+1]) > FTINY) | 
| 302 |  | sprintf(errmsg, "minimum theta must be 0 in sensor file '%s'", | 
| 303 |  | sfile); | 
| 304 |  | else if (fabs(sarr[1]) > FTINY) | 
| 305 |  | sprintf(errmsg, "minimum phi must be 0 in sensor file '%s'", | 
| 306 |  | sfile); | 
| 307 | < | else if (sarr[ntp[1]] <= FTINY) | 
| 307 | > | else if (sarr[ntp[1]] < 270.-FTINY) | 
| 308 |  | sprintf(errmsg, | 
| 309 | < | "maximum phi must be positive in sensor file '%s'", | 
| 309 | > | "maximum phi must be 270 or greater in sensor file '%s'", | 
| 310 |  | sfile); | 
| 311 | < | else if (sarr[ntp[0]*(ntp[1]+1)] <= FTINY) | 
| 311 | > | else if (sarr[ntp[1]] >= 360.-FTINY) | 
| 312 |  | sprintf(errmsg, | 
| 313 | < | "maximum theta must be positive in sensor file '%s'", | 
| 313 | > | "maximum phi must be less than 360 in sensor file '%s'", | 
| 314 |  | sfile); | 
| 315 |  | if (errmsg[0]) | 
| 316 |  | error(USER, errmsg); | 
| 323 |  | char    *sfile | 
| 324 |  | ) | 
| 325 |  | { | 
| 326 | < | int     samptot = nsamps; | 
| 326 | > | long    samptot = nsamps; | 
| 327 |  | float   *rowp, *rowp1; | 
| 328 |  | double  rowsum[MAXNT], rowomega[MAXNT]; | 
| 329 |  | double  thdiv[MAXNT+1], phdiv[MAXNP+1]; | 
| 355 |  | error(INTERNAL, errmsg); | 
| 356 |  | } | 
| 357 |  | /* compute boundary angles */ | 
| 358 | < | maxtheta = 1.5f*s_theta(sntp[0]-1) - 0.5f*s_theta(sntp[0]-2); | 
| 358 | > | maxtheta = DEGREE*(1.5f*s_theta(sntp[0]-1) - 0.5f*s_theta(sntp[0]-2)); | 
| 359 | > | if (maxtheta > PI) | 
| 360 | > | maxtheta = PI; | 
| 361 |  | thdiv[0] = .0; | 
| 362 |  | for (t = 1; t < sntp[0]; t++) | 
| 363 |  | thdiv[t] = DEGREE/2.*(s_theta(t-1) + s_theta(t)); | 
| 364 | < | thdiv[sntp[0]] = maxtheta*DEGREE; | 
| 365 | < | phdiv[0] = .0; | 
| 364 | > | thdiv[sntp[0]] = maxtheta; | 
| 365 | > | phdiv[0] = DEGREE*(1.5f*s_phi(0) - 0.5f*s_phi(1)); | 
| 366 |  | for (p = 1; p < sntp[1]; p++) | 
| 367 |  | phdiv[p] = DEGREE/2.*(s_phi(p-1) + s_phi(p)); | 
| 368 | < | phdiv[sntp[1]] = 2.*PI; | 
| 368 | > | phdiv[sntp[1]] = DEGREE*(1.5f*s_phi(sntp[1]-1) - 0.5f*s_phi(sntp[1]-2)); | 
| 369 |  | /* size our table */ | 
| 370 | < | tsize = 1. - cos(maxtheta*DEGREE); | 
| 371 | < | psize = PI*tsize/(maxtheta*DEGREE); | 
| 370 | > | tsize = 1. - cos(maxtheta); | 
| 371 | > | psize = PI*tsize/maxtheta; | 
| 372 |  | if (sntp[0]*sntp[1] < samptot)  /* don't overdo resolution */ | 
| 373 |  | samptot = sntp[0]*sntp[1]; | 
| 374 | < | ntheta = (int)(sqrt((double)samptot*tsize/psize) + 0.5); | 
| 374 | > | ntheta = (int)(sqrt((double)samptot*tsize/psize)*sntp[0]/sntp[1]) + 1; | 
| 375 |  | if (ntheta > MAXNT) | 
| 376 |  | ntheta = MAXNT; | 
| 377 |  | nphi = samptot/ntheta; | 
| 378 | < | pvals = (float *)malloc(sizeof(float)*ntheta*(nphi+1)); | 
| 378 | > | pvals = (float *)malloc(sizeof(float)*(ntheta+1)*(nphi+1)); | 
| 379 |  | if (pvals == NULL) | 
| 380 |  | error(SYSTEM, "out of memory in init_ptable()"); | 
| 381 |  | gscale = .0;                    /* compute our inverse table */ | 
| 382 |  | for (i = 0; i < sntp[0]; i++) { | 
| 383 |  | rowp = &s_val(i,0); | 
| 384 | < | rowsum[i] = 0.; | 
| 384 | > | rowsum[i] = 1e-20; | 
| 385 |  | for (j = 0; j < sntp[1]; j++) | 
| 386 |  | rowsum[i] += *rowp++; | 
| 387 |  | rowomega[i] = cos(thdiv[i]) - cos(thdiv[i+1]); | 
| 388 |  | rowomega[i] *= 2.*PI / (double)sntp[1]; | 
| 389 |  | gscale += rowsum[i] * rowomega[i]; | 
| 390 |  | } | 
| 391 | + | if (gscale <= FTINY) { | 
| 392 | + | sprintf(errmsg, "Sensor values sum to zero in file '%s'", sfile); | 
| 393 | + | error(USER, errmsg); | 
| 394 | + | } | 
| 395 |  | for (i = 0; i < ntheta; i++) { | 
| 396 |  | prob = (double)i / (double)ntheta; | 
| 397 |  | for (t = 0; t < sntp[0]; t++) | 
| 403 |  | tvals[i] = 1. - ( (1.-frac)*cos(thdiv[t]) + | 
| 404 |  | frac*cos(thdiv[t+1]) ); | 
| 405 |  | /* offset b/c sensor values are centered */ | 
| 406 | < | if (t <= 0 || frac > 0.5) | 
| 406 | > | if ((t < sntp[0]-1) & (!t | (frac >= 0.5))) { | 
| 407 |  | frac -= 0.5; | 
| 408 | < | else if (t >= sntp[0]-1 || frac < 0.5) { | 
| 408 | > | } else { | 
| 409 |  | frac += 0.5; | 
| 410 |  | --t; | 
| 411 |  | } | 
| 412 | < | pvals[i*(nphi+1)] = .0f; | 
| 412 | > | pvals[i*(nphi+1)] = phdiv[0]; | 
| 413 |  | for (j = 1; j < nphi; j++) { | 
| 414 |  | prob = (double)j / (double)nphi; | 
| 415 |  | rowp = &s_val(t,0); | 
| 416 |  | rowp1 = &s_val(t+1,0); | 
| 417 | < | for (p = 0; p < sntp[1]; p++) { | 
| 417 | > | for (p = 0; p < sntp[1]; p++) | 
| 418 |  | if ((prob -= (1.-frac)*rowp[p]/rowsum[t] + | 
| 419 |  | frac*rowp1[p]/rowsum[t+1]) <= .0) | 
| 420 |  | break; | 
| 421 | < | if (p >= sntp[1]) | 
| 422 | < | error(INTERNAL, | 
| 423 | < | "code error 2 in init_ptable()"); | 
| 375 | < | frac1 = 1. + prob/((1.-frac)*rowp[p]/rowsum[t] | 
| 376 | < | + frac*rowp1[p]/rowsum[t+1]); | 
| 377 | < | pvals[i*(nphi+1) + j] = (1.-frac1)*phdiv[p] + | 
| 378 | < | frac1*phdiv[p+1]; | 
| 421 | > | if (p >= sntp[1]) {     /* should never happen? */ | 
| 422 | > | p = sntp[1] - 1; | 
| 423 | > | prob = .5; | 
| 424 |  | } | 
| 425 | + | frac1 = 1. + prob/((1.-frac)*rowp[p]/rowsum[t] | 
| 426 | + | + frac*rowp1[p]/rowsum[t+1]); | 
| 427 | + | pvals[i*(nphi+1) + j] = (1.-frac1)*phdiv[p] + | 
| 428 | + | frac1*phdiv[p+1]; | 
| 429 |  | } | 
| 430 | < | pvals[i*(nphi+1) + nphi] = (float)(2.*PI); | 
| 430 | > | pvals[i*(nphi+1) + nphi] = phdiv[sntp[1]]; | 
| 431 |  | } | 
| 432 | + | /* duplicate final row */ | 
| 433 | + | memcpy(pvals+ntheta*(nphi+1), pvals+(ntheta-1)*(nphi+1), | 
| 434 | + | sizeof(*pvals)*(nphi+1)); | 
| 435 |  | tvals[0] = .0f; | 
| 436 |  | tvals[ntheta] = (float)tsize; | 
| 437 |  | } | 
| 478 |  | int     t, p; | 
| 479 |  |  | 
| 480 |  | dv[2] = DOT(dvec, ourview.vdir); | 
| 481 | < | theta = (float)((1./DEGREE) * acos(dv[2])); | 
| 481 | > | theta = acos(dv[2]); | 
| 482 |  | if (theta >= maxtheta) | 
| 483 |  | return(.0f); | 
| 484 |  | dv[0] = DOT(dvec, ourview.hvec); | 
| 485 |  | dv[1] = DOT(dvec, ourview.vvec); | 
| 486 | < | phi = (float)((1./DEGREE) * atan2(-dv[0], dv[1])); | 
| 487 | < | while (phi < .0f) phi += 360.f; | 
| 486 | > | phi = atan2(-dv[0], dv[1]); | 
| 487 | > | while (phi < .0f) phi += (float)(2.*PI); | 
| 488 |  | t = (int)(theta/maxtheta * sntp[0]); | 
| 489 | < | p = (int)(phi*(1./360.) * sntp[1]); | 
| 489 | > | p = (int)(phi*(1./(2.*PI)) * sntp[1]); | 
| 490 |  | /* hack for non-uniform sensor grid */ | 
| 491 | + | theta *= (float)(1./DEGREE); | 
| 492 | + | phi *= (float)(1./DEGREE); | 
| 493 |  | while (t+1 < sntp[0] && theta >= s_theta(t+1)) | 
| 494 |  | ++t; | 
| 495 |  | while (t-1 >= 0 && theta <= s_theta(t-1)) | 
| 501 |  | return(s_val(t,p)); | 
| 502 |  | } | 
| 503 |  |  | 
| 504 | + | /* Print origin and direction */ | 
| 505 | + | static void | 
| 506 | + | print_ray( | 
| 507 | + | FVECT rorg, | 
| 508 | + | FVECT rdir | 
| 509 | + | ) | 
| 510 | + | { | 
| 511 | + | printf("%.6g %.6g %.6g %.8f %.8f %.8f\n", | 
| 512 | + | rorg[0], rorg[1], rorg[2], | 
| 513 | + | rdir[0], rdir[1], rdir[2]); | 
| 514 | + | } | 
| 515 | + |  | 
| 516 |  | /* Compute sensor output */ | 
| 517 |  | static void | 
| 518 |  | comp_sensor( | 
| 523 |  | ndsamps > 0 ? 1 : 0; | 
| 524 |  | char    *err; | 
| 525 |  | int     nt, np; | 
| 526 | < | COLOR   vsum; | 
| 526 | > | SCOLOR  vsum; | 
| 527 |  | RAY     rr; | 
| 528 | + | double  sf; | 
| 529 |  | int     i, j; | 
| 530 |  | /* set view */ | 
| 531 |  | ourview.type = VT_ANG; | 
| 536 |  | error(USER, err); | 
| 537 |  | /* assign probability table */ | 
| 538 |  | init_ptable(sfile); | 
| 539 | < | /* do Monte Carlo sampling */ | 
| 540 | < | setcolor(vsum, .0f, .0f, .0f); | 
| 539 | > | /* stratified MC sampling */ | 
| 540 | > | scolorblack(vsum); | 
| 541 |  | nt = (int)(sqrt((double)nsamps*ntheta/nphi) + .5); | 
| 542 |  | np = nsamps/nt; | 
| 543 | < | VCOPY(rr.rorg, ourview.vp); | 
| 477 | < | rr.rmax = .0; | 
| 543 | > | sf = gscale/nsamps; | 
| 544 |  | for (i = 0; i < nt; i++) | 
| 545 |  | for (j = 0; j < np; j++) { | 
| 546 | + | VCOPY(rr.rorg, ourview.vp); | 
| 547 |  | get_direc(rr.rdir, (i+frandom())/nt, (j+frandom())/np); | 
| 548 | < | rayorigin(&rr, PRIMARY, NULL, NULL); | 
| 548 | > | if (ourview.vfore > FTINY) | 
| 549 | > | VSUM(rr.rorg, rr.rorg, rr.rdir, ourview.vfore); | 
| 550 | > | if (!ray_pnprocs) { | 
| 551 | > | print_ray(rr.rorg, rr.rdir); | 
| 552 | > | continue; | 
| 553 | > | } | 
| 554 | > | rr.rmax = .0; | 
| 555 | > | rayorigin(&rr, PRIMARY|SPECULAR, NULL, NULL); | 
| 556 | > | scalescolor(rr.rcoef, sf); | 
| 557 |  | if (ray_pqueue(&rr) == 1) | 
| 558 | < | addcolor(vsum, rr.rcol); | 
| 558 | > | saddscolor(vsum, rr.rcol); | 
| 559 |  | } | 
| 560 | < | /* finish MC calculation */ | 
| 561 | < | while (ray_presult(&rr, 0) > 0) | 
| 562 | < | addcolor(vsum, rr.rcol); | 
| 563 | < | scalecolor(vsum, gscale/(nt*np)); | 
| 564 | < | /* compute direct component */ | 
| 560 | > | /* remaining rays pure MC */ | 
| 561 | > | for (i = nsamps - nt*np; i-- > 0; ) { | 
| 562 | > | VCOPY(rr.rorg, ourview.vp); | 
| 563 | > | get_direc(rr.rdir, frandom(), frandom()); | 
| 564 | > | if (ourview.vfore > FTINY) | 
| 565 | > | VSUM(rr.rorg, rr.rorg, rr.rdir, ourview.vfore); | 
| 566 | > | if (!ray_pnprocs) { | 
| 567 | > | print_ray(rr.rorg, rr.rdir); | 
| 568 | > | continue; | 
| 569 | > | } | 
| 570 | > | rr.rmax = .0; | 
| 571 | > | rayorigin(&rr, PRIMARY|SPECULAR, NULL, NULL); | 
| 572 | > | scalescolor(rr.rcoef, sf); | 
| 573 | > | if (ray_pqueue(&rr) == 1) | 
| 574 | > | saddscolor(vsum, rr.rcol); | 
| 575 | > | } | 
| 576 | > | if (!ray_pnprocs)                       /* just printing rays */ | 
| 577 | > | return; | 
| 578 | > | /* scale partial result */ | 
| 579 | > | scalescolor(vsum, sf); | 
| 580 | > | /* add direct component */ | 
| 581 |  | for (i = ndirs; i-- > 0; ) { | 
| 582 |  | SRCINDEX        si; | 
| 583 |  | initsrcindex(&si); | 
| 584 |  | while (srcray(&rr, NULL, &si)) { | 
| 585 | < | double  d = sens_val(rr.rdir); | 
| 586 | < | if (d <= FTINY) | 
| 585 | > | sf = sens_val(rr.rdir); | 
| 586 | > | if (sf <= FTINY) | 
| 587 |  | continue; | 
| 588 | < | d *= si.dom/ndirs; | 
| 589 | < | scalecolor(rr.rcoef, d); | 
| 588 | > | sf *= si.dom/ndirs; | 
| 589 | > | scalescolor(rr.rcoef, sf); | 
| 590 |  | if (ray_pqueue(&rr) == 1) { | 
| 591 | < | multcolor(rr.rcol, rr.rcoef); | 
| 592 | < | addcolor(vsum, rr.rcol); | 
| 591 | > | smultscolor(rr.rcol, rr.rcoef); | 
| 592 | > | saddscolor(vsum, rr.rcol); | 
| 593 |  | } | 
| 594 |  | } | 
| 595 |  | } | 
| 596 | < | /* finish direct calculation */ | 
| 597 | < | while (ray_presult(&rr, 0) > 0) { | 
| 598 | < | multcolor(rr.rcol, rr.rcoef); | 
| 508 | < | addcolor(vsum, rr.rcol); | 
| 596 | > | while (ray_presult(&rr, 0) > 0) {       /* finish our calculation */ | 
| 597 | > | smultscolor(rr.rcol, rr.rcoef); | 
| 598 | > | saddscolor(vsum, rr.rcol); | 
| 599 |  | } | 
| 600 | < | /* print our result */ | 
| 601 | < | printf("%.4e %.4e %.4e\n", colval(vsum,RED), | 
| 602 | < | colval(vsum,GRN), colval(vsum,BLU)); | 
| 600 | > | for (i = 0; i < NCSAMP; i++)            /* print our result */ | 
| 601 | > | printf(" %.4e", vsum[i]); | 
| 602 | > | fputc('\n', stdout); | 
| 603 |  | } |