| 1 |
#ifndef lint
|
| 2 |
static const char RCSid[] = "$Id: ratrace.cpp,v 2.2 2023/07/31 23:14:02 greg Exp $";
|
| 3 |
#endif
|
| 4 |
/*
|
| 5 |
* C++ module for individual ray tracing.
|
| 6 |
*/
|
| 7 |
|
| 8 |
/*
|
| 9 |
* Input is in the form:
|
| 10 |
*
|
| 11 |
* xorg yorg zorg xdir ydir zdir
|
| 12 |
*
|
| 13 |
* The direction need not be normalized. Output is flexible.
|
| 14 |
* If the direction vector is (0,0,0), then the output is flushed.
|
| 15 |
* All values default to ascii representation of real
|
| 16 |
* numbers. Binary representations can be selected
|
| 17 |
* with '-ff' for float or '-fd' for double. By default,
|
| 18 |
* radiance is computed. The '-i' or '-I' options indicate that
|
| 19 |
* irradiance values are desired.
|
| 20 |
*/
|
| 21 |
|
| 22 |
#include "copyright.h"
|
| 23 |
|
| 24 |
#include "RtraceSimulManager.h"
|
| 25 |
#include "platform.h"
|
| 26 |
#include "otypes.h"
|
| 27 |
#include "otspecial.h"
|
| 28 |
#include "source.h"
|
| 29 |
#include "resolu.h"
|
| 30 |
|
| 31 |
extern int inform; /* input format */
|
| 32 |
extern int outform; /* output format */
|
| 33 |
|
| 34 |
extern char *tralist[]; /* list of modifers to trace (or no) */
|
| 35 |
extern int traincl; /* include == 1, exclude == 0 */
|
| 36 |
|
| 37 |
extern int hresolu; /* horizontal resolution */
|
| 38 |
extern int vresolu; /* vertical resolution */
|
| 39 |
|
| 40 |
extern int castonly; /* only doing ray-casting? */
|
| 41 |
|
| 42 |
#ifndef MAXTSET
|
| 43 |
#define MAXTSET 8191 /* maximum number in trace set */
|
| 44 |
#endif
|
| 45 |
OBJECT traset[MAXTSET+1]={0}; /* trace include/exclude set */
|
| 46 |
|
| 47 |
// global simulation manager
|
| 48 |
extern RtraceSimulManager myRTmanager;
|
| 49 |
|
| 50 |
static FILE *inpfp = NULL; /* input stream pointer */
|
| 51 |
|
| 52 |
static FVECT *inp_queue = NULL; /* ray input queue if flushing */
|
| 53 |
static int inp_qpos = 0; /* next ray to return */
|
| 54 |
static int inp_qend = 0; /* number of rays in this work group */
|
| 55 |
|
| 56 |
typedef void putf_t(RREAL *v, int n);
|
| 57 |
static putf_t puta, putd, putf, putrgbe;
|
| 58 |
|
| 59 |
typedef void oputf_t(RAY *r);
|
| 60 |
static oputf_t oputo, oputd, oputv, oputV, oputl, oputL, oputc, oputp,
|
| 61 |
oputr, oputR, oputx, oputX, oputn, oputN, oputs,
|
| 62 |
oputw, oputW, oputm, oputM, oputtilde;
|
| 63 |
|
| 64 |
extern void tranotify(OBJECT obj);
|
| 65 |
static void tabin(RAY *r);
|
| 66 |
static RayReportCall ourtrace;
|
| 67 |
static RayReportCall printvals;
|
| 68 |
|
| 69 |
static oputf_t *ray_out[32], *every_out[32];
|
| 70 |
static putf_t *putreal;
|
| 71 |
|
| 72 |
void
|
| 73 |
quit( /* quit program */
|
| 74 |
int code
|
| 75 |
)
|
| 76 |
{
|
| 77 |
int ec = myRTmanager.Cleanup();
|
| 78 |
|
| 79 |
if (ec) code = ec;
|
| 80 |
|
| 81 |
exit(code);
|
| 82 |
}
|
| 83 |
|
| 84 |
const char *
|
| 85 |
formstr( /* return format identifier */
|
| 86 |
int f
|
| 87 |
)
|
| 88 |
{
|
| 89 |
switch (f) {
|
| 90 |
case 'a': return("ascii");
|
| 91 |
case 'f': return("float");
|
| 92 |
case 'd': return("double");
|
| 93 |
case 'c': return(COLRFMT);
|
| 94 |
}
|
| 95 |
return("unknown");
|
| 96 |
}
|
| 97 |
|
| 98 |
static bool
|
| 99 |
getvec( /* get a vector from fp */
|
| 100 |
FVECT vec,
|
| 101 |
int fmt,
|
| 102 |
FILE *fp
|
| 103 |
)
|
| 104 |
{
|
| 105 |
static char buf[32];
|
| 106 |
float * vf = (float *)buf;
|
| 107 |
double * vd = (double *)buf;
|
| 108 |
int i;
|
| 109 |
|
| 110 |
switch (fmt) {
|
| 111 |
case 'a': /* ascii */
|
| 112 |
for (i = 0; i < 3; i++) {
|
| 113 |
if (fgetword(buf, sizeof(buf), fp) == NULL ||
|
| 114 |
!isflt(buf))
|
| 115 |
return false;
|
| 116 |
vec[i] = atof(buf);
|
| 117 |
}
|
| 118 |
break;
|
| 119 |
#ifdef SMLFLT
|
| 120 |
case 'f': /* binary float */
|
| 121 |
if (getbinary(vec, sizeof(RREAL), 3, fp) != 3)
|
| 122 |
return false;
|
| 123 |
break;
|
| 124 |
case 'd': /* binary double */
|
| 125 |
if (getbinary(vd, sizeof(double), 3, fp) != 3)
|
| 126 |
return false;
|
| 127 |
VCOPY(vec, vd);
|
| 128 |
break;
|
| 129 |
#else
|
| 130 |
case 'f': /* binary float */
|
| 131 |
if (getbinary(vf, sizeof(float), 3, fp) != 3)
|
| 132 |
return false;
|
| 133 |
VCOPY(vec, vf);
|
| 134 |
break;
|
| 135 |
case 'd': /* binary double */
|
| 136 |
if (getbinary(vec, sizeof(RREAL), 3, fp) != 3)
|
| 137 |
return false;
|
| 138 |
break;
|
| 139 |
#endif
|
| 140 |
default:
|
| 141 |
error(CONSISTENCY, "botched input format");
|
| 142 |
}
|
| 143 |
return true;
|
| 144 |
}
|
| 145 |
|
| 146 |
// read ray list from inpfp
|
| 147 |
static int
|
| 148 |
getrays(FVECT org_dir[], int n)
|
| 149 |
{
|
| 150 |
int nread = 0;
|
| 151 |
|
| 152 |
while (n-- > 0) {
|
| 153 |
if (!getvec(org_dir[0], inform, inpfp) ||
|
| 154 |
!getvec(org_dir[1], inform, inpfp))
|
| 155 |
break;
|
| 156 |
++nread;
|
| 157 |
if (IsZeroVec(org_dir[1]))
|
| 158 |
break;
|
| 159 |
org_dir += 2;
|
| 160 |
}
|
| 161 |
return nread;
|
| 162 |
}
|
| 163 |
|
| 164 |
void
|
| 165 |
rtrace( /* trace rays from stdin or file */
|
| 166 |
char *fname,
|
| 167 |
int nproc
|
| 168 |
)
|
| 169 |
{
|
| 170 |
RNUMBER vcount = (hresolu > 1) ? (RNUMBER)hresolu*vresolu
|
| 171 |
: (RNUMBER)vresolu;
|
| 172 |
const int flushIntvl = (!vresolu | (hresolu <= 1)) * hresolu;
|
| 173 |
FVECT * ivbuf = (FVECT *)malloc(2*sizeof(FVECT) *
|
| 174 |
(flushIntvl + !flushIntvl));
|
| 175 |
if (ivbuf == NULL)
|
| 176 |
error(SYSTEM, "cannot allocate input vector buffer");
|
| 177 |
/* set up input */
|
| 178 |
if (fname == NULL)
|
| 179 |
inpfp = stdin;
|
| 180 |
else if ((inpfp = fopen(fname, "r")) == NULL) {
|
| 181 |
sprintf(errmsg, "cannot open input file \"%s\"", fname);
|
| 182 |
error(SYSTEM, errmsg);
|
| 183 |
}
|
| 184 |
#ifdef getc_unlocked
|
| 185 |
flockfile(inpfp); /* avoid lock/unlock overhead */
|
| 186 |
#endif
|
| 187 |
if (inform != 'a')
|
| 188 |
SET_FILE_BINARY(inpfp);
|
| 189 |
/* set up output */
|
| 190 |
if (castonly || every_out[0] != NULL)
|
| 191 |
nproc = 1; /* don't bother multiprocessing */
|
| 192 |
else if (nproc <= 0) // need to get default for system?
|
| 193 |
nproc = myRTmanager.GetNCores();
|
| 194 |
if ((flushIntvl > 0) & (nproc > flushIntvl)) {
|
| 195 |
error(WARNING, "reducing number of processes to match flush interval");
|
| 196 |
nproc = flushIntvl;
|
| 197 |
}
|
| 198 |
nproc = myRTmanager.SetThreadCount(nproc);
|
| 199 |
if (ray_out[0])
|
| 200 |
myRTmanager.SetCookedCall(printvals);
|
| 201 |
if (every_out[0])
|
| 202 |
myRTmanager.SetTraceCall(ourtrace);
|
| 203 |
myRTmanager.rtFlags |= RTdoFIFO;
|
| 204 |
if (hresolu > 0) { // print resolution string if appropriate
|
| 205 |
if (vresolu > 0)
|
| 206 |
fprtresolu(hresolu, vresolu, stdout);
|
| 207 |
else
|
| 208 |
fflush(stdout);
|
| 209 |
}
|
| 210 |
int n; /* process input rays */
|
| 211 |
bool pending = false;
|
| 212 |
while ((n = getrays(ivbuf, flushIntvl + !flushIntvl)) > 0) {
|
| 213 |
if ((vcount > 0) & (n > vcount)) {
|
| 214 |
error(WARNING, "extra ray(s) past end of input");
|
| 215 |
n = vcount;
|
| 216 |
} // put ray(s) into queue
|
| 217 |
if (myRTmanager.EnqueueBundle(ivbuf, n) < n)
|
| 218 |
error(USER, "ray queuing failure");
|
| 219 |
pending |= (n > 1); // time to flush output?
|
| 220 |
bool atZero = IsZeroVec(ivbuf[2*n-1]);
|
| 221 |
if (pending & (atZero | (n == flushIntvl))) {
|
| 222 |
if (!myRTmanager.FlushQueue())
|
| 223 |
error(USER, "ray flush error");
|
| 224 |
fflush(stdout);
|
| 225 |
pending = false;
|
| 226 |
} else
|
| 227 |
pending |= !atZero;
|
| 228 |
if (ferror(stdout))
|
| 229 |
error(SYSTEM, "write error");
|
| 230 |
if (vcount && !(vcount -= n)) /* check for end */
|
| 231 |
break;
|
| 232 |
}
|
| 233 |
if (vcount)
|
| 234 |
error(WARNING, feof(inpfp) ? "unexpected EOF on input" :
|
| 235 |
"input read error");
|
| 236 |
if (fflush(stdout) < 0)
|
| 237 |
error(SYSTEM, "write error");
|
| 238 |
if (fname != NULL) {
|
| 239 |
fclose(inpfp);
|
| 240 |
inpfp = NULL;
|
| 241 |
}
|
| 242 |
free(ivbuf);
|
| 243 |
}
|
| 244 |
|
| 245 |
int
|
| 246 |
setrtoutput(const char *outvals) /* set up output tables, return #comp */
|
| 247 |
{
|
| 248 |
const char *vs = outvals;
|
| 249 |
oputf_t **table = ray_out;
|
| 250 |
int ncomp = 0;
|
| 251 |
|
| 252 |
if (!*vs)
|
| 253 |
error(USER, "empty output specification");
|
| 254 |
|
| 255 |
switch (outform) { /* make sure (*putreal)() calls someone! */
|
| 256 |
case 'a': putreal = puta; break;
|
| 257 |
case 'f': putreal = putf; break;
|
| 258 |
case 'd': putreal = putd; break;
|
| 259 |
case 'c':
|
| 260 |
if (outvals[1] || !strchr("vrx", outvals[0]))
|
| 261 |
error(USER, "color format only with -ov, -or, -ox");
|
| 262 |
putreal = putrgbe; break;
|
| 263 |
default:
|
| 264 |
error(CONSISTENCY, "botched output format");
|
| 265 |
}
|
| 266 |
castonly = 1; /* sets castonly as side-effect */
|
| 267 |
do
|
| 268 |
switch (*vs) {
|
| 269 |
case 'T': /* trace sources */
|
| 270 |
myRTmanager.rtFlags |= RTtraceSources;
|
| 271 |
/* fall through */
|
| 272 |
case 't': /* trace */
|
| 273 |
if (!vs[1]) break;
|
| 274 |
*table = NULL;
|
| 275 |
table = every_out;
|
| 276 |
castonly = 0;
|
| 277 |
break;
|
| 278 |
case 'o': /* origin */
|
| 279 |
*table++ = oputo;
|
| 280 |
ncomp += 3;
|
| 281 |
break;
|
| 282 |
case 'd': /* direction */
|
| 283 |
*table++ = oputd;
|
| 284 |
ncomp += 3;
|
| 285 |
break;
|
| 286 |
case 'r': /* reflected contrib. */
|
| 287 |
*table++ = oputr;
|
| 288 |
ncomp += 3;
|
| 289 |
castonly = 0;
|
| 290 |
break;
|
| 291 |
case 'R': /* reflected distance */
|
| 292 |
*table++ = oputR;
|
| 293 |
ncomp++;
|
| 294 |
castonly = 0;
|
| 295 |
break;
|
| 296 |
case 'x': /* xmit contrib. */
|
| 297 |
*table++ = oputx;
|
| 298 |
ncomp += 3;
|
| 299 |
castonly = 0;
|
| 300 |
break;
|
| 301 |
case 'X': /* xmit distance */
|
| 302 |
*table++ = oputX;
|
| 303 |
ncomp++;
|
| 304 |
castonly = 0;
|
| 305 |
break;
|
| 306 |
case 'v': /* value */
|
| 307 |
*table++ = oputv;
|
| 308 |
ncomp += 3;
|
| 309 |
castonly = 0;
|
| 310 |
break;
|
| 311 |
case 'V': /* contribution */
|
| 312 |
*table++ = oputV;
|
| 313 |
ncomp += 3;
|
| 314 |
castonly = 0;
|
| 315 |
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0))
|
| 316 |
error(WARNING,
|
| 317 |
"-otV accuracy depends on -aa 0 -as 0");
|
| 318 |
break;
|
| 319 |
case 'l': /* effective distance */
|
| 320 |
*table++ = oputl;
|
| 321 |
ncomp++;
|
| 322 |
castonly = 0;
|
| 323 |
break;
|
| 324 |
case 'c': /* local coordinates */
|
| 325 |
*table++ = oputc;
|
| 326 |
ncomp += 2;
|
| 327 |
break;
|
| 328 |
case 'L': /* single ray length */
|
| 329 |
*table++ = oputL;
|
| 330 |
ncomp++;
|
| 331 |
break;
|
| 332 |
case 'p': /* point */
|
| 333 |
*table++ = oputp;
|
| 334 |
ncomp += 3;
|
| 335 |
break;
|
| 336 |
case 'n': /* perturbed normal */
|
| 337 |
*table++ = oputn;
|
| 338 |
ncomp += 3;
|
| 339 |
castonly = 0;
|
| 340 |
break;
|
| 341 |
case 'N': /* unperturbed normal */
|
| 342 |
*table++ = oputN;
|
| 343 |
ncomp += 3;
|
| 344 |
break;
|
| 345 |
case 's': /* surface */
|
| 346 |
*table++ = oputs;
|
| 347 |
ncomp++;
|
| 348 |
break;
|
| 349 |
case 'w': /* weight */
|
| 350 |
*table++ = oputw;
|
| 351 |
ncomp++;
|
| 352 |
break;
|
| 353 |
case 'W': /* coefficient */
|
| 354 |
*table++ = oputW;
|
| 355 |
ncomp += 3;
|
| 356 |
castonly = 0;
|
| 357 |
if (ambounce > 0 && (ambacc > FTINY) | (ambssamp > 0))
|
| 358 |
error(WARNING,
|
| 359 |
"-otW accuracy depends on -aa 0 -as 0");
|
| 360 |
break;
|
| 361 |
case 'm': /* modifier */
|
| 362 |
*table++ = oputm;
|
| 363 |
ncomp++;
|
| 364 |
break;
|
| 365 |
case 'M': /* material */
|
| 366 |
*table++ = oputM;
|
| 367 |
ncomp++;
|
| 368 |
break;
|
| 369 |
case '~': /* tilde */
|
| 370 |
*table++ = oputtilde;
|
| 371 |
break;
|
| 372 |
default:
|
| 373 |
sprintf(errmsg, "unrecognized output option '%c'", *vs);
|
| 374 |
error(USER, errmsg);
|
| 375 |
}
|
| 376 |
while (*++vs);
|
| 377 |
|
| 378 |
*table = NULL;
|
| 379 |
if (*every_out != NULL)
|
| 380 |
ncomp = 0;
|
| 381 |
/* compatibility */
|
| 382 |
if ((do_irrad | (myRTmanager.rtFlags & RTimmIrrad)) && castonly)
|
| 383 |
error(USER, "-I+ and -i+ options require some value output");
|
| 384 |
for (table = ray_out; *table != NULL; table++) {
|
| 385 |
if ((*table == oputV) | (*table == oputW))
|
| 386 |
error(WARNING, "-oVW options require trace mode");
|
| 387 |
if ((do_irrad | (myRTmanager.rtFlags & RTimmIrrad)) &&
|
| 388 |
(*table == oputr) | (*table == oputR) |
|
| 389 |
(*table == oputx) | (*table == oputX))
|
| 390 |
error(WARNING, "-orRxX options incompatible with -I+ and -i+");
|
| 391 |
}
|
| 392 |
return(ncomp);
|
| 393 |
}
|
| 394 |
|
| 395 |
static void
|
| 396 |
printvals( /* print requested ray values */
|
| 397 |
RAY *r, void *cd
|
| 398 |
)
|
| 399 |
{
|
| 400 |
oputf_t **tp;
|
| 401 |
|
| 402 |
if (ray_out[0] == NULL)
|
| 403 |
return;
|
| 404 |
#ifdef getc_unlocked
|
| 405 |
flockfile(stdout);
|
| 406 |
#endif
|
| 407 |
for (tp = ray_out; *tp != NULL; tp++)
|
| 408 |
(**tp)(r);
|
| 409 |
if (outform == 'a')
|
| 410 |
putchar('\n');
|
| 411 |
#ifdef getc_unlocked
|
| 412 |
funlockfile(stdout);
|
| 413 |
#endif
|
| 414 |
}
|
| 415 |
|
| 416 |
void
|
| 417 |
tranotify( /* record new modifier */
|
| 418 |
OBJECT obj
|
| 419 |
)
|
| 420 |
{
|
| 421 |
static int hitlimit = 0;
|
| 422 |
OBJREC *o = objptr(obj);
|
| 423 |
char **tralp;
|
| 424 |
|
| 425 |
if (obj == OVOID) { /* starting over */
|
| 426 |
traset[0] = 0;
|
| 427 |
hitlimit = 0;
|
| 428 |
return;
|
| 429 |
}
|
| 430 |
if (hitlimit || !ismodifier(o->otype))
|
| 431 |
return;
|
| 432 |
for (tralp = tralist; *tralp != NULL; tralp++)
|
| 433 |
if (!strcmp(o->oname, *tralp)) {
|
| 434 |
if (traset[0] >= MAXTSET) {
|
| 435 |
error(WARNING, "too many modifiers in trace list");
|
| 436 |
hitlimit++;
|
| 437 |
return; /* should this be fatal? */
|
| 438 |
}
|
| 439 |
insertelem(traset, obj);
|
| 440 |
return;
|
| 441 |
}
|
| 442 |
}
|
| 443 |
|
| 444 |
static void
|
| 445 |
ourtrace( /* print ray values */
|
| 446 |
RAY *r, void *cd
|
| 447 |
)
|
| 448 |
{
|
| 449 |
oputf_t **tp;
|
| 450 |
|
| 451 |
if (every_out[0] == NULL)
|
| 452 |
return;
|
| 453 |
if (r->ro == NULL) {
|
| 454 |
if (traincl == 1)
|
| 455 |
return;
|
| 456 |
} else if (traincl != -1 && traincl != inset(traset, r->ro->omod))
|
| 457 |
return;
|
| 458 |
#ifdef getc_unlocked
|
| 459 |
flockfile(stdout);
|
| 460 |
#endif
|
| 461 |
tabin(r);
|
| 462 |
for (tp = every_out; *tp != NULL; tp++)
|
| 463 |
(**tp)(r);
|
| 464 |
if (outform == 'a')
|
| 465 |
putchar('\n');
|
| 466 |
#ifdef getc_unlocked
|
| 467 |
funlockfile(stdout);
|
| 468 |
#endif
|
| 469 |
}
|
| 470 |
|
| 471 |
static void
|
| 472 |
tabin( /* tab in appropriate amount */
|
| 473 |
RAY *r
|
| 474 |
)
|
| 475 |
{
|
| 476 |
const RAY *rp;
|
| 477 |
|
| 478 |
for (rp = r->parent; rp != NULL; rp = rp->parent)
|
| 479 |
putchar('\t');
|
| 480 |
}
|
| 481 |
|
| 482 |
static void
|
| 483 |
oputo( /* print origin */
|
| 484 |
RAY *r
|
| 485 |
)
|
| 486 |
{
|
| 487 |
(*putreal)(r->rorg, 3);
|
| 488 |
}
|
| 489 |
|
| 490 |
static void
|
| 491 |
oputd( /* print direction */
|
| 492 |
RAY *r
|
| 493 |
)
|
| 494 |
{
|
| 495 |
(*putreal)(r->rdir, 3);
|
| 496 |
}
|
| 497 |
|
| 498 |
static void
|
| 499 |
oputr( /* print mirrored contribution */
|
| 500 |
RAY *r
|
| 501 |
)
|
| 502 |
{
|
| 503 |
RREAL cval[3];
|
| 504 |
|
| 505 |
cval[0] = colval(r->mcol,RED);
|
| 506 |
cval[1] = colval(r->mcol,GRN);
|
| 507 |
cval[2] = colval(r->mcol,BLU);
|
| 508 |
(*putreal)(cval, 3);
|
| 509 |
}
|
| 510 |
|
| 511 |
static void
|
| 512 |
oputR( /* print mirrored distance */
|
| 513 |
RAY *r
|
| 514 |
)
|
| 515 |
{
|
| 516 |
(*putreal)(&r->rmt, 1);
|
| 517 |
}
|
| 518 |
|
| 519 |
static void
|
| 520 |
oputx( /* print unmirrored contribution */
|
| 521 |
RAY *r
|
| 522 |
)
|
| 523 |
{
|
| 524 |
RREAL cval[3];
|
| 525 |
|
| 526 |
cval[0] = colval(r->rcol,RED) - colval(r->mcol,RED);
|
| 527 |
cval[1] = colval(r->rcol,GRN) - colval(r->mcol,GRN);
|
| 528 |
cval[2] = colval(r->rcol,BLU) - colval(r->mcol,BLU);
|
| 529 |
(*putreal)(cval, 3);
|
| 530 |
}
|
| 531 |
|
| 532 |
static void
|
| 533 |
oputX( /* print unmirrored distance */
|
| 534 |
RAY *r
|
| 535 |
)
|
| 536 |
{
|
| 537 |
(*putreal)(&r->rxt, 1);
|
| 538 |
}
|
| 539 |
|
| 540 |
static void
|
| 541 |
oputv( /* print value */
|
| 542 |
RAY *r
|
| 543 |
)
|
| 544 |
{
|
| 545 |
RREAL cval[3];
|
| 546 |
|
| 547 |
cval[0] = colval(r->rcol,RED);
|
| 548 |
cval[1] = colval(r->rcol,GRN);
|
| 549 |
cval[2] = colval(r->rcol,BLU);
|
| 550 |
(*putreal)(cval, 3);
|
| 551 |
}
|
| 552 |
|
| 553 |
static void
|
| 554 |
oputV( /* print value contribution */
|
| 555 |
RAY *r
|
| 556 |
)
|
| 557 |
{
|
| 558 |
RREAL contr[3];
|
| 559 |
|
| 560 |
raycontrib(contr, r, PRIMARY);
|
| 561 |
multcolor(contr, r->rcol);
|
| 562 |
(*putreal)(contr, 3);
|
| 563 |
}
|
| 564 |
|
| 565 |
static void
|
| 566 |
oputl( /* print effective distance */
|
| 567 |
RAY *r
|
| 568 |
)
|
| 569 |
{
|
| 570 |
RREAL d = raydistance(r);
|
| 571 |
|
| 572 |
(*putreal)(&d, 1);
|
| 573 |
}
|
| 574 |
|
| 575 |
static void
|
| 576 |
oputL( /* print single ray length */
|
| 577 |
RAY *r
|
| 578 |
)
|
| 579 |
{
|
| 580 |
(*putreal)(&r->rot, 1);
|
| 581 |
}
|
| 582 |
|
| 583 |
static void
|
| 584 |
oputc( /* print local coordinates */
|
| 585 |
RAY *r
|
| 586 |
)
|
| 587 |
{
|
| 588 |
(*putreal)(r->uv, 2);
|
| 589 |
}
|
| 590 |
|
| 591 |
static RREAL vdummy[3] = {0.0, 0.0, 0.0};
|
| 592 |
|
| 593 |
static void
|
| 594 |
oputp( /* print intersection point */
|
| 595 |
RAY *r
|
| 596 |
)
|
| 597 |
{
|
| 598 |
(*putreal)(r->rop, 3); /* set to ray origin if distant or no hit */
|
| 599 |
}
|
| 600 |
|
| 601 |
static void
|
| 602 |
oputN( /* print unperturbed normal */
|
| 603 |
RAY *r
|
| 604 |
)
|
| 605 |
{
|
| 606 |
if (r->ro == NULL) { /* zero vector if clipped or no hit */
|
| 607 |
(*putreal)(vdummy, 3);
|
| 608 |
return;
|
| 609 |
}
|
| 610 |
if (r->rflips & 1) { /* undo any flippin' flips */
|
| 611 |
FVECT unrm;
|
| 612 |
unrm[0] = -r->ron[0];
|
| 613 |
unrm[1] = -r->ron[1];
|
| 614 |
unrm[2] = -r->ron[2];
|
| 615 |
(*putreal)(unrm, 3);
|
| 616 |
} else
|
| 617 |
(*putreal)(r->ron, 3);
|
| 618 |
}
|
| 619 |
|
| 620 |
static void
|
| 621 |
oputn( /* print perturbed normal */
|
| 622 |
RAY *r
|
| 623 |
)
|
| 624 |
{
|
| 625 |
FVECT pnorm;
|
| 626 |
|
| 627 |
if (r->ro == NULL) { /* clipped or no hit */
|
| 628 |
(*putreal)(vdummy, 3);
|
| 629 |
return;
|
| 630 |
}
|
| 631 |
raynormal(pnorm, r);
|
| 632 |
(*putreal)(pnorm, 3);
|
| 633 |
}
|
| 634 |
|
| 635 |
static void
|
| 636 |
oputs( /* print name */
|
| 637 |
RAY *r
|
| 638 |
)
|
| 639 |
{
|
| 640 |
if (r->ro != NULL)
|
| 641 |
fputs(r->ro->oname, stdout);
|
| 642 |
else
|
| 643 |
putchar('*');
|
| 644 |
putchar('\t');
|
| 645 |
}
|
| 646 |
|
| 647 |
static void
|
| 648 |
oputw( /* print weight */
|
| 649 |
RAY *r
|
| 650 |
)
|
| 651 |
{
|
| 652 |
RREAL rwt = r->rweight;
|
| 653 |
|
| 654 |
(*putreal)(&rwt, 1);
|
| 655 |
}
|
| 656 |
|
| 657 |
static void
|
| 658 |
oputW( /* print coefficient */
|
| 659 |
RAY *r
|
| 660 |
)
|
| 661 |
{
|
| 662 |
RREAL contr[3];
|
| 663 |
/* shadow ray not on source? */
|
| 664 |
if (r->rsrc >= 0 && source[r->rsrc].so != r->ro)
|
| 665 |
setcolor(contr, 0.0, 0.0, 0.0);
|
| 666 |
else
|
| 667 |
raycontrib(contr, r, PRIMARY);
|
| 668 |
|
| 669 |
(*putreal)(contr, 3);
|
| 670 |
}
|
| 671 |
|
| 672 |
static void
|
| 673 |
oputm( /* print modifier */
|
| 674 |
RAY *r
|
| 675 |
)
|
| 676 |
{
|
| 677 |
if (r->ro != NULL)
|
| 678 |
if (r->ro->omod != OVOID)
|
| 679 |
fputs(objptr(r->ro->omod)->oname, stdout);
|
| 680 |
else
|
| 681 |
fputs(VOIDID, stdout);
|
| 682 |
else
|
| 683 |
putchar('*');
|
| 684 |
putchar('\t');
|
| 685 |
}
|
| 686 |
|
| 687 |
static void
|
| 688 |
oputM( /* print material */
|
| 689 |
RAY *r
|
| 690 |
)
|
| 691 |
{
|
| 692 |
OBJREC *mat;
|
| 693 |
|
| 694 |
if (r->ro != NULL) {
|
| 695 |
if ((mat = findmaterial(r->ro)) != NULL)
|
| 696 |
fputs(mat->oname, stdout);
|
| 697 |
else
|
| 698 |
fputs(VOIDID, stdout);
|
| 699 |
} else
|
| 700 |
putchar('*');
|
| 701 |
putchar('\t');
|
| 702 |
}
|
| 703 |
|
| 704 |
static void
|
| 705 |
oputtilde( /* output tilde (spacer) */
|
| 706 |
RAY *r
|
| 707 |
)
|
| 708 |
{
|
| 709 |
fputs("~\t", stdout);
|
| 710 |
}
|
| 711 |
|
| 712 |
static void
|
| 713 |
puta( /* print ascii value(s) */
|
| 714 |
RREAL *v, int n
|
| 715 |
)
|
| 716 |
{
|
| 717 |
if (n == 3) {
|
| 718 |
printf("%e\t%e\t%e\t", v[0], v[1], v[2]);
|
| 719 |
return;
|
| 720 |
}
|
| 721 |
while (n--)
|
| 722 |
printf("%e\t", *v++);
|
| 723 |
}
|
| 724 |
|
| 725 |
static void
|
| 726 |
putd(RREAL *v, int n) /* output binary double(s) */
|
| 727 |
{
|
| 728 |
#ifdef SMLFLT
|
| 729 |
double da[3];
|
| 730 |
int i;
|
| 731 |
|
| 732 |
if (n > 3)
|
| 733 |
error(INTERNAL, "code error in putd()");
|
| 734 |
for (i = n; i--; )
|
| 735 |
da[i] = v[i];
|
| 736 |
putbinary(da, sizeof(double), n, stdout);
|
| 737 |
#else
|
| 738 |
putbinary(v, sizeof(RREAL), n, stdout);
|
| 739 |
#endif
|
| 740 |
}
|
| 741 |
|
| 742 |
static void
|
| 743 |
putf(RREAL *v, int n) /* output binary float(s) */
|
| 744 |
{
|
| 745 |
#ifndef SMLFLT
|
| 746 |
float fa[3];
|
| 747 |
int i;
|
| 748 |
|
| 749 |
if (n > 3)
|
| 750 |
error(INTERNAL, "code error in putf()");
|
| 751 |
for (i = n; i--; )
|
| 752 |
fa[i] = v[i];
|
| 753 |
putbinary(fa, sizeof(float), n, stdout);
|
| 754 |
#else
|
| 755 |
putbinary(v, sizeof(RREAL), n, stdout);
|
| 756 |
#endif
|
| 757 |
}
|
| 758 |
|
| 759 |
static void
|
| 760 |
putrgbe(RREAL *v, int n) /* output RGBE color */
|
| 761 |
{
|
| 762 |
COLR cout;
|
| 763 |
|
| 764 |
if (n != 3)
|
| 765 |
error(INTERNAL, "putrgbe() not called with 3 components");
|
| 766 |
setcolr(cout, v[0], v[1], v[2]);
|
| 767 |
putbinary(cout, sizeof(cout), 1, stdout);
|
| 768 |
}
|
