1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: rtrace.c,v 2.83 2019/07/25 16:59:19 greg Exp $"; |
3 |
#endif |
4 |
/* |
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* rtrace.c - program and variables for individual ray tracing. |
6 |
*/ |
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|
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#include "copyright.h" |
9 |
|
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/* |
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* Input is in the form: |
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* |
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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 <time.h> |
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|
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#include "platform.h" |
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#include "ray.h" |
28 |
#include "ambient.h" |
29 |
#include "source.h" |
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#include "otypes.h" |
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#include "otspecial.h" |
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#include "resolu.h" |
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#include "random.h" |
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|
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extern int inform; /* input format */ |
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extern int outform; /* output format */ |
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extern char *outvals; /* output values */ |
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|
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extern int imm_irrad; /* compute immediate irradiance? */ |
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extern int lim_dist; /* limit distance? */ |
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|
42 |
extern char *tralist[]; /* list of modifers to trace (or no) */ |
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extern int traincl; /* include == 1, exclude == 0 */ |
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|
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extern int hresolu; /* horizontal resolution */ |
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extern int vresolu; /* vertical resolution */ |
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|
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static int castonly = 0; |
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|
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#ifndef MAXTSET |
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#define MAXTSET 8191 /* maximum number in trace set */ |
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#endif |
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OBJECT traset[MAXTSET+1]={0}; /* trace include/exclude set */ |
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|
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static RAY thisray; /* for our convenience */ |
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|
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typedef void putf_t(RREAL *v, int n); |
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static putf_t puta, putd, putf, putrgbe; |
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|
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typedef void oputf_t(RAY *r); |
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static oputf_t oputo, oputd, oputv, oputV, oputl, oputL, oputc, oputp, |
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oputr, oputR, oputx, oputX, oputn, oputN, oputs, |
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oputw, oputW, oputm, oputM, oputtilde; |
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|
65 |
static void setoutput(char *vs); |
66 |
extern void tranotify(OBJECT obj); |
67 |
static void bogusray(void); |
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static void raycast(RAY *r); |
69 |
static void rayirrad(RAY *r); |
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static void rtcompute(FVECT org, FVECT dir, double dmax); |
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static int printvals(RAY *r); |
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static int getvec(FVECT vec, int fmt, FILE *fp); |
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static void tabin(RAY *r); |
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static void ourtrace(RAY *r); |
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|
76 |
static oputf_t *ray_out[32], *every_out[32]; |
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static putf_t *putreal; |
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|
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|
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void |
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quit( /* quit program */ |
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int code |
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) |
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{ |
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if (ray_pnprocs > 0) /* close children if any */ |
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ray_pclose(0); |
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#ifndef NON_POSIX |
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else if (!ray_pnprocs) { |
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headclean(); /* delete header file */ |
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pfclean(); /* clean up persist files */ |
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} |
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#endif |
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exit(code); |
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} |
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|
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|
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char * |
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formstr( /* return format identifier */ |
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int f |
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) |
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{ |
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switch (f) { |
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case 'a': return("ascii"); |
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case 'f': return("float"); |
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case 'd': return("double"); |
106 |
case 'c': return(COLRFMT); |
107 |
} |
108 |
return("unknown"); |
109 |
} |
110 |
|
111 |
|
112 |
extern void |
113 |
rtrace( /* trace rays from file */ |
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char *fname, |
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int nproc |
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) |
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{ |
118 |
unsigned long vcount = (hresolu > 1) ? (unsigned long)hresolu*vresolu |
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: (unsigned long)vresolu; |
120 |
long nextflush = (vresolu > 0) & (hresolu > 1) ? 0 : hresolu; |
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int something2flush = 0; |
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FILE *fp; |
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double d; |
124 |
FVECT orig, direc; |
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/* set up input */ |
126 |
if (fname == NULL) |
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fp = stdin; |
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else if ((fp = fopen(fname, "r")) == NULL) { |
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sprintf(errmsg, "cannot open input file \"%s\"", fname); |
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error(SYSTEM, errmsg); |
131 |
} |
132 |
if (inform != 'a') |
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SET_FILE_BINARY(fp); |
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/* set up output */ |
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setoutput(outvals); |
136 |
if (imm_irrad) |
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castonly = 0; |
138 |
else if (castonly) |
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nproc = 1; /* don't bother multiprocessing */ |
140 |
if ((nextflush > 0) & (nproc > nextflush)) { |
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error(WARNING, "reducing number of processes to match flush interval"); |
142 |
nproc = nextflush; |
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} |
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switch (outform) { |
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case 'a': putreal = puta; break; |
146 |
case 'f': putreal = putf; break; |
147 |
case 'd': putreal = putd; break; |
148 |
case 'c': |
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if (outvals[0] && (outvals[1] || !strchr("vrx", outvals[0]))) |
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error(USER, "color format only with -ov, -or, -ox"); |
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putreal = putrgbe; break; |
152 |
default: |
153 |
error(CONSISTENCY, "botched output format"); |
154 |
} |
155 |
if (nproc > 1) { /* start multiprocessing */ |
156 |
ray_popen(nproc); |
157 |
ray_fifo_out = printvals; |
158 |
} |
159 |
if (hresolu > 0) { |
160 |
if (vresolu > 0) |
161 |
fprtresolu(hresolu, vresolu, stdout); |
162 |
else |
163 |
fflush(stdout); |
164 |
} |
165 |
/* process file */ |
166 |
while (getvec(orig, inform, fp) == 0 && |
167 |
getvec(direc, inform, fp) == 0) { |
168 |
|
169 |
d = normalize(direc); |
170 |
if (d == 0.0) { /* zero ==> flush */ |
171 |
if ((--nextflush <= 0) | !vcount && something2flush) { |
172 |
if (ray_pnprocs > 1 && ray_fifo_flush() < 0) |
173 |
error(USER, "child(ren) died"); |
174 |
bogusray(); |
175 |
fflush(stdout); |
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something2flush = 0; |
177 |
nextflush = (vresolu > 0) & (hresolu > 1) ? 0 : |
178 |
hresolu; |
179 |
} else |
180 |
bogusray(); |
181 |
} else { /* compute and print */ |
182 |
rtcompute(orig, direc, lim_dist ? d : 0.0); |
183 |
/* flush if time */ |
184 |
if (!--nextflush) { |
185 |
if (ray_pnprocs > 1 && ray_fifo_flush() < 0) |
186 |
error(USER, "child(ren) died"); |
187 |
fflush(stdout); |
188 |
nextflush = hresolu; |
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} else |
190 |
something2flush = 1; |
191 |
} |
192 |
if (ferror(stdout)) |
193 |
error(SYSTEM, "write error"); |
194 |
if (vcount && !--vcount) /* check for end */ |
195 |
break; |
196 |
} |
197 |
if (ray_pnprocs > 1) { /* clean up children */ |
198 |
if (ray_fifo_flush() < 0) |
199 |
error(USER, "unable to complete processing"); |
200 |
ray_pclose(0); |
201 |
} |
202 |
if (fflush(stdout) < 0) |
203 |
error(SYSTEM, "write error"); |
204 |
if (vcount) |
205 |
error(USER, "unexpected EOF on input"); |
206 |
if (fname != NULL) |
207 |
fclose(fp); |
208 |
} |
209 |
|
210 |
|
211 |
static void |
212 |
trace_sources(void) /* trace rays to light sources, also */ |
213 |
{ |
214 |
int sn; |
215 |
|
216 |
for (sn = 0; sn < nsources; sn++) |
217 |
source[sn].sflags |= SFOLLOW; |
218 |
} |
219 |
|
220 |
|
221 |
static void |
222 |
setoutput( /* set up output tables */ |
223 |
char *vs |
224 |
) |
225 |
{ |
226 |
oputf_t **table = ray_out; |
227 |
|
228 |
castonly = 1; |
229 |
while (*vs) |
230 |
switch (*vs++) { |
231 |
case 'T': /* trace sources */ |
232 |
if (!*vs) break; |
233 |
trace_sources(); |
234 |
/* fall through */ |
235 |
case 't': /* trace */ |
236 |
if (!*vs) break; |
237 |
*table = NULL; |
238 |
table = every_out; |
239 |
trace = ourtrace; |
240 |
castonly = 0; |
241 |
break; |
242 |
case 'o': /* origin */ |
243 |
*table++ = oputo; |
244 |
break; |
245 |
case 'd': /* direction */ |
246 |
*table++ = oputd; |
247 |
break; |
248 |
case 'r': /* reflected contrib. */ |
249 |
*table++ = oputr; |
250 |
castonly = 0; |
251 |
break; |
252 |
case 'R': /* reflected distance */ |
253 |
*table++ = oputR; |
254 |
castonly = 0; |
255 |
break; |
256 |
case 'x': /* xmit contrib. */ |
257 |
*table++ = oputx; |
258 |
castonly = 0; |
259 |
break; |
260 |
case 'X': /* xmit distance */ |
261 |
*table++ = oputX; |
262 |
castonly = 0; |
263 |
break; |
264 |
case 'v': /* value */ |
265 |
*table++ = oputv; |
266 |
castonly = 0; |
267 |
break; |
268 |
case 'V': /* contribution */ |
269 |
*table++ = oputV; |
270 |
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0)) |
271 |
error(WARNING, |
272 |
"-otV accuracy depends on -aa 0 -as 0"); |
273 |
break; |
274 |
case 'l': /* effective distance */ |
275 |
*table++ = oputl; |
276 |
castonly = 0; |
277 |
break; |
278 |
case 'c': /* local coordinates */ |
279 |
*table++ = oputc; |
280 |
break; |
281 |
case 'L': /* single ray length */ |
282 |
*table++ = oputL; |
283 |
break; |
284 |
case 'p': /* point */ |
285 |
*table++ = oputp; |
286 |
break; |
287 |
case 'n': /* perturbed normal */ |
288 |
*table++ = oputn; |
289 |
castonly = 0; |
290 |
break; |
291 |
case 'N': /* unperturbed normal */ |
292 |
*table++ = oputN; |
293 |
break; |
294 |
case 's': /* surface */ |
295 |
*table++ = oputs; |
296 |
break; |
297 |
case 'w': /* weight */ |
298 |
*table++ = oputw; |
299 |
break; |
300 |
case 'W': /* coefficient */ |
301 |
*table++ = oputW; |
302 |
castonly = 0; |
303 |
if (ambounce > 0 && (ambacc > FTINY) | (ambssamp > 0)) |
304 |
error(WARNING, |
305 |
"-otW accuracy depends on -aa 0 -as 0"); |
306 |
break; |
307 |
case 'm': /* modifier */ |
308 |
*table++ = oputm; |
309 |
break; |
310 |
case 'M': /* material */ |
311 |
*table++ = oputM; |
312 |
break; |
313 |
case '~': /* tilde */ |
314 |
*table++ = oputtilde; |
315 |
break; |
316 |
} |
317 |
*table = NULL; |
318 |
/* compatibility */ |
319 |
for (table = ray_out; *table != NULL; table++) { |
320 |
if ((*table == oputV) | (*table == oputW)) |
321 |
error(WARNING, "-oVW options require trace mode"); |
322 |
if ((do_irrad | imm_irrad) && |
323 |
(*table == oputr) | (*table == oputR) | |
324 |
(*table == oputx) | (*table == oputX)) |
325 |
error(WARNING, "-orRxX options incompatible with -I+ and -i+"); |
326 |
} |
327 |
} |
328 |
|
329 |
|
330 |
static void |
331 |
bogusray(void) /* print out empty record */ |
332 |
{ |
333 |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
334 |
printvals(&thisray); |
335 |
} |
336 |
|
337 |
|
338 |
static void |
339 |
raycast( /* compute first ray intersection only */ |
340 |
RAY *r |
341 |
) |
342 |
{ |
343 |
if (!localhit(r, &thescene)) { |
344 |
if (r->ro == &Aftplane) { /* clipped */ |
345 |
r->ro = NULL; |
346 |
r->rot = FHUGE; |
347 |
} else |
348 |
sourcehit(r); |
349 |
} |
350 |
} |
351 |
|
352 |
|
353 |
static void |
354 |
rayirrad( /* compute irradiance rather than radiance */ |
355 |
RAY *r |
356 |
) |
357 |
{ |
358 |
void (*old_revf)(RAY *) = r->revf; |
359 |
/* pretend we hit surface */ |
360 |
r->rxt = r->rot = 1e-5; |
361 |
VSUM(r->rop, r->rorg, r->rdir, r->rot); |
362 |
r->ron[0] = -r->rdir[0]; |
363 |
r->ron[1] = -r->rdir[1]; |
364 |
r->ron[2] = -r->rdir[2]; |
365 |
r->rod = 1.0; |
366 |
/* compute result */ |
367 |
r->revf = raytrace; |
368 |
(*ofun[Lamb.otype].funp)(&Lamb, r); |
369 |
r->revf = old_revf; |
370 |
} |
371 |
|
372 |
|
373 |
static void |
374 |
rtcompute( /* compute and print ray value(s) */ |
375 |
FVECT org, |
376 |
FVECT dir, |
377 |
double dmax |
378 |
) |
379 |
{ |
380 |
/* set up ray */ |
381 |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
382 |
if (imm_irrad) { |
383 |
VSUM(thisray.rorg, org, dir, 1.1e-4); |
384 |
thisray.rdir[0] = -dir[0]; |
385 |
thisray.rdir[1] = -dir[1]; |
386 |
thisray.rdir[2] = -dir[2]; |
387 |
thisray.rmax = 0.0; |
388 |
thisray.revf = rayirrad; |
389 |
} else { |
390 |
VCOPY(thisray.rorg, org); |
391 |
VCOPY(thisray.rdir, dir); |
392 |
thisray.rmax = dmax; |
393 |
if (castonly) |
394 |
thisray.revf = raycast; |
395 |
} |
396 |
if (ray_pnprocs > 1) { /* multiprocessing FIFO? */ |
397 |
if (ray_fifo_in(&thisray) < 0) |
398 |
error(USER, "lost children"); |
399 |
return; |
400 |
} |
401 |
samplendx++; /* else do it ourselves */ |
402 |
rayvalue(&thisray); |
403 |
printvals(&thisray); |
404 |
} |
405 |
|
406 |
|
407 |
static int |
408 |
printvals( /* print requested ray values */ |
409 |
RAY *r |
410 |
) |
411 |
{ |
412 |
oputf_t **tp; |
413 |
|
414 |
if (ray_out[0] == NULL) |
415 |
return(0); |
416 |
for (tp = ray_out; *tp != NULL; tp++) |
417 |
(**tp)(r); |
418 |
if (outform == 'a') |
419 |
putchar('\n'); |
420 |
return(1); |
421 |
} |
422 |
|
423 |
|
424 |
static int |
425 |
getvec( /* get a vector from fp */ |
426 |
FVECT vec, |
427 |
int fmt, |
428 |
FILE *fp |
429 |
) |
430 |
{ |
431 |
static float vf[3]; |
432 |
static double vd[3]; |
433 |
char buf[32]; |
434 |
int i; |
435 |
|
436 |
switch (fmt) { |
437 |
case 'a': /* ascii */ |
438 |
for (i = 0; i < 3; i++) { |
439 |
if (fgetword(buf, sizeof(buf), fp) == NULL || |
440 |
!isflt(buf)) |
441 |
return(-1); |
442 |
vec[i] = atof(buf); |
443 |
} |
444 |
break; |
445 |
case 'f': /* binary float */ |
446 |
if (getbinary(vf, sizeof(float), 3, fp) != 3) |
447 |
return(-1); |
448 |
VCOPY(vec, vf); |
449 |
break; |
450 |
case 'd': /* binary double */ |
451 |
if (getbinary(vd, sizeof(double), 3, fp) != 3) |
452 |
return(-1); |
453 |
VCOPY(vec, vd); |
454 |
break; |
455 |
default: |
456 |
error(CONSISTENCY, "botched input format"); |
457 |
} |
458 |
return(0); |
459 |
} |
460 |
|
461 |
|
462 |
void |
463 |
tranotify( /* record new modifier */ |
464 |
OBJECT obj |
465 |
) |
466 |
{ |
467 |
static int hitlimit = 0; |
468 |
OBJREC *o = objptr(obj); |
469 |
char **tralp; |
470 |
|
471 |
if (obj == OVOID) { /* starting over */ |
472 |
traset[0] = 0; |
473 |
hitlimit = 0; |
474 |
return; |
475 |
} |
476 |
if (hitlimit || !ismodifier(o->otype)) |
477 |
return; |
478 |
for (tralp = tralist; *tralp != NULL; tralp++) |
479 |
if (!strcmp(o->oname, *tralp)) { |
480 |
if (traset[0] >= MAXTSET) { |
481 |
error(WARNING, "too many modifiers in trace list"); |
482 |
hitlimit++; |
483 |
return; /* should this be fatal? */ |
484 |
} |
485 |
insertelem(traset, obj); |
486 |
return; |
487 |
} |
488 |
} |
489 |
|
490 |
|
491 |
static void |
492 |
ourtrace( /* print ray values */ |
493 |
RAY *r |
494 |
) |
495 |
{ |
496 |
oputf_t **tp; |
497 |
|
498 |
if (every_out[0] == NULL) |
499 |
return; |
500 |
if (r->ro == NULL) { |
501 |
if (traincl == 1) |
502 |
return; |
503 |
} else if (traincl != -1 && traincl != inset(traset, r->ro->omod)) |
504 |
return; |
505 |
tabin(r); |
506 |
for (tp = every_out; *tp != NULL; tp++) |
507 |
(**tp)(r); |
508 |
if (outform == 'a') |
509 |
putchar('\n'); |
510 |
} |
511 |
|
512 |
|
513 |
static void |
514 |
tabin( /* tab in appropriate amount */ |
515 |
RAY *r |
516 |
) |
517 |
{ |
518 |
const RAY *rp; |
519 |
|
520 |
for (rp = r->parent; rp != NULL; rp = rp->parent) |
521 |
putchar('\t'); |
522 |
} |
523 |
|
524 |
|
525 |
static void |
526 |
oputo( /* print origin */ |
527 |
RAY *r |
528 |
) |
529 |
{ |
530 |
(*putreal)(r->rorg, 3); |
531 |
} |
532 |
|
533 |
|
534 |
static void |
535 |
oputd( /* print direction */ |
536 |
RAY *r |
537 |
) |
538 |
{ |
539 |
(*putreal)(r->rdir, 3); |
540 |
} |
541 |
|
542 |
|
543 |
static void |
544 |
oputr( /* print mirrored contribution */ |
545 |
RAY *r |
546 |
) |
547 |
{ |
548 |
RREAL cval[3]; |
549 |
|
550 |
cval[0] = colval(r->mcol,RED); |
551 |
cval[1] = colval(r->mcol,GRN); |
552 |
cval[2] = colval(r->mcol,BLU); |
553 |
(*putreal)(cval, 3); |
554 |
} |
555 |
|
556 |
|
557 |
|
558 |
static void |
559 |
oputR( /* print mirrored distance */ |
560 |
RAY *r |
561 |
) |
562 |
{ |
563 |
(*putreal)(&r->rmt, 1); |
564 |
} |
565 |
|
566 |
|
567 |
static void |
568 |
oputx( /* print unmirrored contribution */ |
569 |
RAY *r |
570 |
) |
571 |
{ |
572 |
RREAL cval[3]; |
573 |
|
574 |
cval[0] = colval(r->rcol,RED) - colval(r->mcol,RED); |
575 |
cval[1] = colval(r->rcol,GRN) - colval(r->mcol,GRN); |
576 |
cval[2] = colval(r->rcol,BLU) - colval(r->mcol,BLU); |
577 |
(*putreal)(cval, 3); |
578 |
} |
579 |
|
580 |
|
581 |
static void |
582 |
oputX( /* print unmirrored distance */ |
583 |
RAY *r |
584 |
) |
585 |
{ |
586 |
(*putreal)(&r->rxt, 1); |
587 |
} |
588 |
|
589 |
|
590 |
static void |
591 |
oputv( /* print value */ |
592 |
RAY *r |
593 |
) |
594 |
{ |
595 |
RREAL cval[3]; |
596 |
|
597 |
cval[0] = colval(r->rcol,RED); |
598 |
cval[1] = colval(r->rcol,GRN); |
599 |
cval[2] = colval(r->rcol,BLU); |
600 |
(*putreal)(cval, 3); |
601 |
} |
602 |
|
603 |
|
604 |
static void |
605 |
oputV( /* print value contribution */ |
606 |
RAY *r |
607 |
) |
608 |
{ |
609 |
RREAL contr[3]; |
610 |
|
611 |
raycontrib(contr, r, PRIMARY); |
612 |
multcolor(contr, r->rcol); |
613 |
(*putreal)(contr, 3); |
614 |
} |
615 |
|
616 |
|
617 |
static void |
618 |
oputl( /* print effective distance */ |
619 |
RAY *r |
620 |
) |
621 |
{ |
622 |
RREAL d = raydistance(r); |
623 |
|
624 |
(*putreal)(&d, 1); |
625 |
} |
626 |
|
627 |
|
628 |
static void |
629 |
oputL( /* print single ray length */ |
630 |
RAY *r |
631 |
) |
632 |
{ |
633 |
(*putreal)(&r->rot, 1); |
634 |
} |
635 |
|
636 |
|
637 |
static void |
638 |
oputc( /* print local coordinates */ |
639 |
RAY *r |
640 |
) |
641 |
{ |
642 |
(*putreal)(r->uv, 2); |
643 |
} |
644 |
|
645 |
|
646 |
static RREAL vdummy[3] = {0.0, 0.0, 0.0}; |
647 |
|
648 |
|
649 |
static void |
650 |
oputp( /* print point */ |
651 |
RAY *r |
652 |
) |
653 |
{ |
654 |
if (r->rot < FHUGE) |
655 |
(*putreal)(r->rop, 3); |
656 |
else |
657 |
(*putreal)(vdummy, 3); |
658 |
} |
659 |
|
660 |
|
661 |
static void |
662 |
oputN( /* print unperturbed normal */ |
663 |
RAY *r |
664 |
) |
665 |
{ |
666 |
if (r->rot < FHUGE) { |
667 |
if (r->rflips & 1) { /* undo any flippin' flips */ |
668 |
FVECT unrm; |
669 |
unrm[0] = -r->ron[0]; |
670 |
unrm[1] = -r->ron[1]; |
671 |
unrm[2] = -r->ron[2]; |
672 |
(*putreal)(unrm, 3); |
673 |
} else |
674 |
(*putreal)(r->ron, 3); |
675 |
} else |
676 |
(*putreal)(vdummy, 3); |
677 |
} |
678 |
|
679 |
|
680 |
static void |
681 |
oputn( /* print perturbed normal */ |
682 |
RAY *r |
683 |
) |
684 |
{ |
685 |
FVECT pnorm; |
686 |
|
687 |
if (r->rot >= FHUGE) { |
688 |
(*putreal)(vdummy, 3); |
689 |
return; |
690 |
} |
691 |
raynormal(pnorm, r); |
692 |
(*putreal)(pnorm, 3); |
693 |
} |
694 |
|
695 |
|
696 |
static void |
697 |
oputs( /* print name */ |
698 |
RAY *r |
699 |
) |
700 |
{ |
701 |
if (r->ro != NULL) |
702 |
fputs(r->ro->oname, stdout); |
703 |
else |
704 |
putchar('*'); |
705 |
putchar('\t'); |
706 |
} |
707 |
|
708 |
|
709 |
static void |
710 |
oputw( /* print weight */ |
711 |
RAY *r |
712 |
) |
713 |
{ |
714 |
RREAL rwt = r->rweight; |
715 |
|
716 |
(*putreal)(&rwt, 1); |
717 |
} |
718 |
|
719 |
|
720 |
static void |
721 |
oputW( /* print coefficient */ |
722 |
RAY *r |
723 |
) |
724 |
{ |
725 |
RREAL contr[3]; |
726 |
/* shadow ray not on source? */ |
727 |
if (r->rsrc >= 0 && source[r->rsrc].so != r->ro) |
728 |
setcolor(contr, 0.0, 0.0, 0.0); |
729 |
else |
730 |
raycontrib(contr, r, PRIMARY); |
731 |
|
732 |
(*putreal)(contr, 3); |
733 |
} |
734 |
|
735 |
|
736 |
static void |
737 |
oputm( /* print modifier */ |
738 |
RAY *r |
739 |
) |
740 |
{ |
741 |
if (r->ro != NULL) |
742 |
if (r->ro->omod != OVOID) |
743 |
fputs(objptr(r->ro->omod)->oname, stdout); |
744 |
else |
745 |
fputs(VOIDID, stdout); |
746 |
else |
747 |
putchar('*'); |
748 |
putchar('\t'); |
749 |
} |
750 |
|
751 |
|
752 |
static void |
753 |
oputM( /* print material */ |
754 |
RAY *r |
755 |
) |
756 |
{ |
757 |
OBJREC *mat; |
758 |
|
759 |
if (r->ro != NULL) { |
760 |
if ((mat = findmaterial(r->ro)) != NULL) |
761 |
fputs(mat->oname, stdout); |
762 |
else |
763 |
fputs(VOIDID, stdout); |
764 |
} else |
765 |
putchar('*'); |
766 |
putchar('\t'); |
767 |
} |
768 |
|
769 |
|
770 |
static void |
771 |
oputtilde( /* output tilde (spacer) */ |
772 |
RAY *r |
773 |
) |
774 |
{ |
775 |
fputs("~\t", stdout); |
776 |
} |
777 |
|
778 |
|
779 |
static void |
780 |
puta( /* print ascii value(s) */ |
781 |
RREAL *v, int n |
782 |
) |
783 |
{ |
784 |
if (n == 3) { |
785 |
printf("%e\t%e\t%e\t", v[0], v[1], v[2]); |
786 |
return; |
787 |
} |
788 |
while (n--) |
789 |
printf("%e\t", *v++); |
790 |
} |
791 |
|
792 |
|
793 |
static void |
794 |
putd(RREAL *v, int n) /* output binary double(s) */ |
795 |
{ |
796 |
#ifdef SMLFLT |
797 |
double da[3]; |
798 |
int i; |
799 |
|
800 |
if (n > 3) |
801 |
error(INTERNAL, "code error in putd()"); |
802 |
for (i = n; i--; ) |
803 |
da[i] = v[i]; |
804 |
putbinary(da, sizeof(double), n, stdout); |
805 |
#else |
806 |
putbinary(v, sizeof(RREAL), n, stdout); |
807 |
#endif |
808 |
} |
809 |
|
810 |
|
811 |
static void |
812 |
putf(RREAL *v, int n) /* output binary float(s) */ |
813 |
{ |
814 |
#ifndef SMLFLT |
815 |
float fa[3]; |
816 |
int i; |
817 |
|
818 |
if (n > 3) |
819 |
error(INTERNAL, "code error in putf()"); |
820 |
for (i = n; i--; ) |
821 |
fa[i] = v[i]; |
822 |
putbinary(fa, sizeof(float), n, stdout); |
823 |
#else |
824 |
putbinary(v, sizeof(RREAL), n, stdout); |
825 |
#endif |
826 |
} |
827 |
|
828 |
|
829 |
static void |
830 |
putrgbe(RREAL *v, int n) /* output RGBE color */ |
831 |
{ |
832 |
COLR cout; |
833 |
|
834 |
if (n != 3) |
835 |
error(INTERNAL, "putrgbe() not called with 3 components"); |
836 |
setcolr(cout, v[0], v[1], v[2]); |
837 |
putbinary(cout, sizeof(cout), 1, stdout); |
838 |
} |