1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: rxtrace.cpp,v 2.1 2023/08/21 22:39:05 greg Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* C++ module for individual ray tracing. |
6 |
*/ |
7 |
|
8 |
/* |
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* Input is in the form: |
10 |
* |
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* xorg yorg zorg xdir ydir zdir |
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* |
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* The direction need not be normalized. Output is flexible. |
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* If the direction vector is (0,0,0), then the output is flushed. |
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* All values default to ascii representation of real |
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* numbers. Binary representations can be selected |
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* with '-ff' for float or '-fd' for double. By default, |
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* radiance is computed. The '-i' or '-I' options indicate that |
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* irradiance values are desired. |
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*/ |
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|
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#include "copyright.h" |
23 |
|
24 |
#include "RtraceSimulManager.h" |
25 |
#include "platform.h" |
26 |
#include "otypes.h" |
27 |
#include "otspecial.h" |
28 |
#include "source.h" |
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#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? */ |
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|
42 |
#ifndef MAXTSET |
43 |
#define MAXTSET 8191 /* maximum number in trace set */ |
44 |
#endif |
45 |
OBJECT traset[MAXTSET+1]={0}; /* trace include/exclude set */ |
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|
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; |
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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 |
|
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exit(code); |
82 |
} |
83 |
|
84 |
const char * |
85 |
formstr( /* return format identifier */ |
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int f |
87 |
) |
88 |
{ |
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switch (f) { |
90 |
case 'a': return("ascii"); |
91 |
case 'f': return("float"); |
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case 'd': return("double"); |
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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)) |
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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); |
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/* 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() + nproc; |
194 |
if (nproc <= 0) nproc = 1; |
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} |
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if ((flushIntvl > 0) & (nproc > flushIntvl)) { |
197 |
error(WARNING, "reducing number of processes to match flush interval"); |
198 |
nproc = flushIntvl; |
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} |
200 |
nproc = myRTmanager.SetThreadCount(nproc); |
201 |
if (ray_out[0]) |
202 |
myRTmanager.SetCookedCall(printvals); |
203 |
if (every_out[0]) |
204 |
myRTmanager.SetTraceCall(ourtrace); |
205 |
myRTmanager.rtFlags |= RTdoFIFO; |
206 |
if (hresolu > 0) { // print resolution string if appropriate |
207 |
if (vresolu > 0) |
208 |
fprtresolu(hresolu, vresolu, stdout); |
209 |
else |
210 |
fflush(stdout); |
211 |
} |
212 |
int n; /* process input rays */ |
213 |
bool pending = false; |
214 |
while ((n = getrays(ivbuf, flushIntvl + !flushIntvl)) > 0) { |
215 |
if ((vcount > 0) & (n > vcount)) { |
216 |
error(WARNING, "extra ray(s) past end of input"); |
217 |
n = vcount; |
218 |
} // put ray(s) into queue |
219 |
if (myRTmanager.EnqueueBundle(ivbuf, n) < n) |
220 |
error(USER, "ray queuing failure"); |
221 |
pending |= (n > 1); // time to flush output? |
222 |
bool atZero = IsZeroVec(ivbuf[2*n-1]); |
223 |
if (pending & (atZero | (n == flushIntvl))) { |
224 |
if (!myRTmanager.FlushQueue()) |
225 |
error(USER, "ray flush error"); |
226 |
fflush(stdout); |
227 |
pending = false; |
228 |
} else |
229 |
pending |= !atZero; |
230 |
if (ferror(stdout)) |
231 |
error(SYSTEM, "write error"); |
232 |
if (vcount && !(vcount -= n)) /* check for end */ |
233 |
break; |
234 |
} |
235 |
if (vcount) |
236 |
error(WARNING, feof(inpfp) ? "unexpected EOF on input" : |
237 |
"input read error"); |
238 |
if (fflush(stdout) < 0) |
239 |
error(SYSTEM, "write error"); |
240 |
if (fname != NULL) { |
241 |
fclose(inpfp); |
242 |
inpfp = NULL; |
243 |
} |
244 |
free(ivbuf); |
245 |
} |
246 |
|
247 |
int |
248 |
setrtoutput(const char *outvals) /* set up output tables, return #comp */ |
249 |
{ |
250 |
const char *vs = outvals; |
251 |
oputf_t **table = ray_out; |
252 |
int ncomp = 0; |
253 |
|
254 |
if (!*vs) |
255 |
error(USER, "empty output specification"); |
256 |
|
257 |
switch (outform) { /* make sure (*putreal)() calls someone! */ |
258 |
case 'a': putreal = puta; break; |
259 |
case 'f': putreal = putf; break; |
260 |
case 'd': putreal = putd; break; |
261 |
case 'c': |
262 |
if (outvals[1] || !strchr("vrx", outvals[0])) |
263 |
error(USER, "color format only with -ov, -or, -ox"); |
264 |
putreal = putrgbe; break; |
265 |
default: |
266 |
error(CONSISTENCY, "botched output format"); |
267 |
} |
268 |
castonly = 1; /* sets castonly as side-effect */ |
269 |
do |
270 |
switch (*vs) { |
271 |
case 'T': /* trace sources */ |
272 |
myRTmanager.rtFlags |= RTtraceSources; |
273 |
/* fall through */ |
274 |
case 't': /* trace */ |
275 |
if (!vs[1]) break; |
276 |
*table = NULL; |
277 |
table = every_out; |
278 |
castonly = 0; |
279 |
break; |
280 |
case 'o': /* origin */ |
281 |
*table++ = oputo; |
282 |
ncomp += 3; |
283 |
break; |
284 |
case 'd': /* direction */ |
285 |
*table++ = oputd; |
286 |
ncomp += 3; |
287 |
break; |
288 |
case 'r': /* reflected contrib. */ |
289 |
*table++ = oputr; |
290 |
ncomp += 3; |
291 |
castonly = 0; |
292 |
break; |
293 |
case 'R': /* reflected distance */ |
294 |
*table++ = oputR; |
295 |
ncomp++; |
296 |
castonly = 0; |
297 |
break; |
298 |
case 'x': /* xmit contrib. */ |
299 |
*table++ = oputx; |
300 |
ncomp += 3; |
301 |
castonly = 0; |
302 |
break; |
303 |
case 'X': /* xmit distance */ |
304 |
*table++ = oputX; |
305 |
ncomp++; |
306 |
castonly = 0; |
307 |
break; |
308 |
case 'v': /* value */ |
309 |
*table++ = oputv; |
310 |
ncomp += 3; |
311 |
castonly = 0; |
312 |
break; |
313 |
case 'V': /* contribution */ |
314 |
*table++ = oputV; |
315 |
ncomp += 3; |
316 |
castonly = 0; |
317 |
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0)) |
318 |
error(WARNING, |
319 |
"-otV accuracy depends on -aa 0 -as 0"); |
320 |
break; |
321 |
case 'l': /* effective distance */ |
322 |
*table++ = oputl; |
323 |
ncomp++; |
324 |
castonly = 0; |
325 |
break; |
326 |
case 'c': /* local coordinates */ |
327 |
*table++ = oputc; |
328 |
ncomp += 2; |
329 |
break; |
330 |
case 'L': /* single ray length */ |
331 |
*table++ = oputL; |
332 |
ncomp++; |
333 |
break; |
334 |
case 'p': /* point */ |
335 |
*table++ = oputp; |
336 |
ncomp += 3; |
337 |
break; |
338 |
case 'n': /* perturbed normal */ |
339 |
*table++ = oputn; |
340 |
ncomp += 3; |
341 |
castonly = 0; |
342 |
break; |
343 |
case 'N': /* unperturbed normal */ |
344 |
*table++ = oputN; |
345 |
ncomp += 3; |
346 |
break; |
347 |
case 's': /* surface */ |
348 |
*table++ = oputs; |
349 |
ncomp++; |
350 |
break; |
351 |
case 'w': /* weight */ |
352 |
*table++ = oputw; |
353 |
ncomp++; |
354 |
break; |
355 |
case 'W': /* coefficient */ |
356 |
*table++ = oputW; |
357 |
ncomp += 3; |
358 |
castonly = 0; |
359 |
if (ambounce > 0 && (ambacc > FTINY) | (ambssamp > 0)) |
360 |
error(WARNING, |
361 |
"-otW accuracy depends on -aa 0 -as 0"); |
362 |
break; |
363 |
case 'm': /* modifier */ |
364 |
*table++ = oputm; |
365 |
ncomp++; |
366 |
break; |
367 |
case 'M': /* material */ |
368 |
*table++ = oputM; |
369 |
ncomp++; |
370 |
break; |
371 |
case '~': /* tilde */ |
372 |
*table++ = oputtilde; |
373 |
break; |
374 |
default: |
375 |
sprintf(errmsg, "unrecognized output option '%c'", *vs); |
376 |
error(USER, errmsg); |
377 |
} |
378 |
while (*++vs); |
379 |
|
380 |
*table = NULL; |
381 |
if (*every_out != NULL) |
382 |
ncomp = 0; |
383 |
/* compatibility */ |
384 |
if ((do_irrad | (myRTmanager.rtFlags & RTimmIrrad)) && castonly) |
385 |
error(USER, "-I+ and -i+ options require some value output"); |
386 |
for (table = ray_out; *table != NULL; table++) { |
387 |
if ((*table == oputV) | (*table == oputW)) |
388 |
error(WARNING, "-oVW options require trace mode"); |
389 |
if ((do_irrad | (myRTmanager.rtFlags & RTimmIrrad)) && |
390 |
(*table == oputr) | (*table == oputR) | |
391 |
(*table == oputx) | (*table == oputX)) |
392 |
error(WARNING, "-orRxX options incompatible with -I+ and -i+"); |
393 |
} |
394 |
return(ncomp); |
395 |
} |
396 |
|
397 |
static void |
398 |
printvals( /* print requested ray values */ |
399 |
RAY *r, void *cd |
400 |
) |
401 |
{ |
402 |
oputf_t **tp; |
403 |
|
404 |
if (ray_out[0] == NULL) |
405 |
return; |
406 |
#ifdef getc_unlocked |
407 |
flockfile(stdout); |
408 |
#endif |
409 |
for (tp = ray_out; *tp != NULL; tp++) |
410 |
(**tp)(r); |
411 |
if (outform == 'a') |
412 |
putchar('\n'); |
413 |
#ifdef getc_unlocked |
414 |
funlockfile(stdout); |
415 |
#endif |
416 |
} |
417 |
|
418 |
void |
419 |
tranotify( /* record new modifier */ |
420 |
OBJECT obj |
421 |
) |
422 |
{ |
423 |
static int hitlimit = 0; |
424 |
OBJREC *o = objptr(obj); |
425 |
char **tralp; |
426 |
|
427 |
if (obj == OVOID) { /* starting over */ |
428 |
traset[0] = 0; |
429 |
hitlimit = 0; |
430 |
return; |
431 |
} |
432 |
if (hitlimit || !ismodifier(o->otype)) |
433 |
return; |
434 |
for (tralp = tralist; *tralp != NULL; tralp++) |
435 |
if (!strcmp(o->oname, *tralp)) { |
436 |
if (traset[0] >= MAXTSET) { |
437 |
error(WARNING, "too many modifiers in trace list"); |
438 |
hitlimit++; |
439 |
return; /* should this be fatal? */ |
440 |
} |
441 |
insertelem(traset, obj); |
442 |
return; |
443 |
} |
444 |
} |
445 |
|
446 |
static void |
447 |
ourtrace( /* print ray values */ |
448 |
RAY *r, void *cd |
449 |
) |
450 |
{ |
451 |
oputf_t **tp; |
452 |
|
453 |
if (every_out[0] == NULL) |
454 |
return; |
455 |
if (r->ro == NULL) { |
456 |
if (traincl == 1) |
457 |
return; |
458 |
} else if (traincl != -1 && traincl != inset(traset, r->ro->omod)) |
459 |
return; |
460 |
#ifdef getc_unlocked |
461 |
flockfile(stdout); |
462 |
#endif |
463 |
tabin(r); |
464 |
for (tp = every_out; *tp != NULL; tp++) |
465 |
(**tp)(r); |
466 |
if (outform == 'a') |
467 |
putchar('\n'); |
468 |
#ifdef getc_unlocked |
469 |
funlockfile(stdout); |
470 |
#endif |
471 |
} |
472 |
|
473 |
static void |
474 |
tabin( /* tab in appropriate amount */ |
475 |
RAY *r |
476 |
) |
477 |
{ |
478 |
const RAY *rp; |
479 |
|
480 |
for (rp = r->parent; rp != NULL; rp = rp->parent) |
481 |
putchar('\t'); |
482 |
} |
483 |
|
484 |
static void |
485 |
oputo( /* print origin */ |
486 |
RAY *r |
487 |
) |
488 |
{ |
489 |
(*putreal)(r->rorg, 3); |
490 |
} |
491 |
|
492 |
static void |
493 |
oputd( /* print direction */ |
494 |
RAY *r |
495 |
) |
496 |
{ |
497 |
(*putreal)(r->rdir, 3); |
498 |
} |
499 |
|
500 |
static void |
501 |
oputr( /* print mirrored contribution */ |
502 |
RAY *r |
503 |
) |
504 |
{ |
505 |
RREAL cval[3]; |
506 |
|
507 |
cval[0] = colval(r->mcol,RED); |
508 |
cval[1] = colval(r->mcol,GRN); |
509 |
cval[2] = colval(r->mcol,BLU); |
510 |
(*putreal)(cval, 3); |
511 |
} |
512 |
|
513 |
static void |
514 |
oputR( /* print mirrored distance */ |
515 |
RAY *r |
516 |
) |
517 |
{ |
518 |
(*putreal)(&r->rmt, 1); |
519 |
} |
520 |
|
521 |
static void |
522 |
oputx( /* print unmirrored contribution */ |
523 |
RAY *r |
524 |
) |
525 |
{ |
526 |
RREAL cval[3]; |
527 |
|
528 |
cval[0] = colval(r->rcol,RED) - colval(r->mcol,RED); |
529 |
cval[1] = colval(r->rcol,GRN) - colval(r->mcol,GRN); |
530 |
cval[2] = colval(r->rcol,BLU) - colval(r->mcol,BLU); |
531 |
(*putreal)(cval, 3); |
532 |
} |
533 |
|
534 |
static void |
535 |
oputX( /* print unmirrored distance */ |
536 |
RAY *r |
537 |
) |
538 |
{ |
539 |
(*putreal)(&r->rxt, 1); |
540 |
} |
541 |
|
542 |
static void |
543 |
oputv( /* print value */ |
544 |
RAY *r |
545 |
) |
546 |
{ |
547 |
RREAL cval[3]; |
548 |
|
549 |
cval[0] = colval(r->rcol,RED); |
550 |
cval[1] = colval(r->rcol,GRN); |
551 |
cval[2] = colval(r->rcol,BLU); |
552 |
(*putreal)(cval, 3); |
553 |
} |
554 |
|
555 |
static void |
556 |
oputV( /* print value contribution */ |
557 |
RAY *r |
558 |
) |
559 |
{ |
560 |
RREAL contr[3]; |
561 |
|
562 |
raycontrib(contr, r, PRIMARY); |
563 |
multcolor(contr, r->rcol); |
564 |
(*putreal)(contr, 3); |
565 |
} |
566 |
|
567 |
static void |
568 |
oputl( /* print effective distance */ |
569 |
RAY *r |
570 |
) |
571 |
{ |
572 |
RREAL d = raydistance(r); |
573 |
|
574 |
(*putreal)(&d, 1); |
575 |
} |
576 |
|
577 |
static void |
578 |
oputL( /* print single ray length */ |
579 |
RAY *r |
580 |
) |
581 |
{ |
582 |
(*putreal)(&r->rot, 1); |
583 |
} |
584 |
|
585 |
static void |
586 |
oputc( /* print local coordinates */ |
587 |
RAY *r |
588 |
) |
589 |
{ |
590 |
(*putreal)(r->uv, 2); |
591 |
} |
592 |
|
593 |
static RREAL vdummy[3] = {0.0, 0.0, 0.0}; |
594 |
|
595 |
static void |
596 |
oputp( /* print intersection point */ |
597 |
RAY *r |
598 |
) |
599 |
{ |
600 |
(*putreal)(r->rop, 3); /* set to ray origin if distant or no hit */ |
601 |
} |
602 |
|
603 |
static void |
604 |
oputN( /* print unperturbed normal */ |
605 |
RAY *r |
606 |
) |
607 |
{ |
608 |
if (r->ro == NULL) { /* zero vector if clipped or no hit */ |
609 |
(*putreal)(vdummy, 3); |
610 |
return; |
611 |
} |
612 |
if (r->rflips & 1) { /* undo any flippin' flips */ |
613 |
FVECT unrm; |
614 |
unrm[0] = -r->ron[0]; |
615 |
unrm[1] = -r->ron[1]; |
616 |
unrm[2] = -r->ron[2]; |
617 |
(*putreal)(unrm, 3); |
618 |
} else |
619 |
(*putreal)(r->ron, 3); |
620 |
} |
621 |
|
622 |
static void |
623 |
oputn( /* print perturbed normal */ |
624 |
RAY *r |
625 |
) |
626 |
{ |
627 |
FVECT pnorm; |
628 |
|
629 |
if (r->ro == NULL) { /* clipped or no hit */ |
630 |
(*putreal)(vdummy, 3); |
631 |
return; |
632 |
} |
633 |
raynormal(pnorm, r); |
634 |
(*putreal)(pnorm, 3); |
635 |
} |
636 |
|
637 |
static void |
638 |
oputs( /* print name */ |
639 |
RAY *r |
640 |
) |
641 |
{ |
642 |
if (r->ro != NULL) |
643 |
fputs(r->ro->oname, stdout); |
644 |
else |
645 |
putchar('*'); |
646 |
putchar('\t'); |
647 |
} |
648 |
|
649 |
static void |
650 |
oputw( /* print weight */ |
651 |
RAY *r |
652 |
) |
653 |
{ |
654 |
RREAL rwt = r->rweight; |
655 |
|
656 |
(*putreal)(&rwt, 1); |
657 |
} |
658 |
|
659 |
static void |
660 |
oputW( /* print coefficient */ |
661 |
RAY *r |
662 |
) |
663 |
{ |
664 |
RREAL contr[3]; |
665 |
/* shadow ray not on source? */ |
666 |
if (r->rsrc >= 0 && source[r->rsrc].so != r->ro) |
667 |
setcolor(contr, 0.0, 0.0, 0.0); |
668 |
else |
669 |
raycontrib(contr, r, PRIMARY); |
670 |
|
671 |
(*putreal)(contr, 3); |
672 |
} |
673 |
|
674 |
static void |
675 |
oputm( /* print modifier */ |
676 |
RAY *r |
677 |
) |
678 |
{ |
679 |
if (r->ro != NULL) |
680 |
if (r->ro->omod != OVOID) |
681 |
fputs(objptr(r->ro->omod)->oname, stdout); |
682 |
else |
683 |
fputs(VOIDID, stdout); |
684 |
else |
685 |
putchar('*'); |
686 |
putchar('\t'); |
687 |
} |
688 |
|
689 |
static void |
690 |
oputM( /* print material */ |
691 |
RAY *r |
692 |
) |
693 |
{ |
694 |
OBJREC *mat; |
695 |
|
696 |
if (r->ro != NULL) { |
697 |
if ((mat = findmaterial(r->ro)) != NULL) |
698 |
fputs(mat->oname, stdout); |
699 |
else |
700 |
fputs(VOIDID, stdout); |
701 |
} else |
702 |
putchar('*'); |
703 |
putchar('\t'); |
704 |
} |
705 |
|
706 |
static void |
707 |
oputtilde( /* output tilde (spacer) */ |
708 |
RAY *r |
709 |
) |
710 |
{ |
711 |
fputs("~\t", stdout); |
712 |
} |
713 |
|
714 |
static void |
715 |
puta( /* print ascii value(s) */ |
716 |
RREAL *v, int n |
717 |
) |
718 |
{ |
719 |
if (n == 3) { |
720 |
printf("%e\t%e\t%e\t", v[0], v[1], v[2]); |
721 |
return; |
722 |
} |
723 |
while (n--) |
724 |
printf("%e\t", *v++); |
725 |
} |
726 |
|
727 |
static void |
728 |
putd(RREAL *v, int n) /* output binary double(s) */ |
729 |
{ |
730 |
#ifdef SMLFLT |
731 |
double da[3]; |
732 |
int i; |
733 |
|
734 |
if (n > 3) |
735 |
error(INTERNAL, "code error in putd()"); |
736 |
for (i = n; i--; ) |
737 |
da[i] = v[i]; |
738 |
putbinary(da, sizeof(double), n, stdout); |
739 |
#else |
740 |
putbinary(v, sizeof(RREAL), n, stdout); |
741 |
#endif |
742 |
} |
743 |
|
744 |
static void |
745 |
putf(RREAL *v, int n) /* output binary float(s) */ |
746 |
{ |
747 |
#ifndef SMLFLT |
748 |
float fa[3]; |
749 |
int i; |
750 |
|
751 |
if (n > 3) |
752 |
error(INTERNAL, "code error in putf()"); |
753 |
for (i = n; i--; ) |
754 |
fa[i] = v[i]; |
755 |
putbinary(fa, sizeof(float), n, stdout); |
756 |
#else |
757 |
putbinary(v, sizeof(RREAL), n, stdout); |
758 |
#endif |
759 |
} |
760 |
|
761 |
static void |
762 |
putrgbe(RREAL *v, int n) /* output RGBE color */ |
763 |
{ |
764 |
COLR cout; |
765 |
|
766 |
if (n != 3) |
767 |
error(INTERNAL, "putrgbe() not called with 3 components"); |
768 |
setcolr(cout, v[0], v[1], v[2]); |
769 |
putbinary(cout, sizeof(cout), 1, stdout); |
770 |
} |