29 |
|
#include "source.h" |
30 |
|
#include "otypes.h" |
31 |
|
#include "resolu.h" |
32 |
+ |
#include "random.h" |
33 |
|
|
34 |
< |
CUBE thescene; /* our scene */ |
35 |
< |
OBJECT nsceneobjs; /* number of objects in our scene */ |
34 |
> |
extern int inform; /* input format */ |
35 |
> |
extern int outform; /* output format */ |
36 |
> |
extern char *outvals; /* output values */ |
37 |
|
|
38 |
< |
int dimlist[MAXDIM]; /* sampling dimensions */ |
39 |
< |
int ndims = 0; /* number of sampling dimensions */ |
38 |
< |
int samplendx = 0; /* index for this sample */ |
38 |
> |
extern int imm_irrad; /* compute immediate irradiance? */ |
39 |
> |
extern int lim_dist; /* limit distance? */ |
40 |
|
|
41 |
< |
int imm_irrad = 0; /* compute immediate irradiance? */ |
42 |
< |
int lim_dist = 0; /* limit distance? */ |
41 |
> |
extern char *tralist[]; /* list of modifers to trace (or no) */ |
42 |
> |
extern int traincl; /* include == 1, exclude == 0 */ |
43 |
|
|
44 |
< |
int inform = 'a'; /* input format */ |
45 |
< |
int outform = 'a'; /* output format */ |
45 |
< |
char *outvals = "v"; /* output specification */ |
44 |
> |
extern int hresolu; /* horizontal resolution */ |
45 |
> |
extern int vresolu; /* vertical resolution */ |
46 |
|
|
47 |
< |
int do_irrad = 0; /* compute irradiance? */ |
47 |
> |
static int castonly = 0; |
48 |
|
|
49 |
< |
void (*trace)() = NULL; /* trace call */ |
50 |
< |
|
51 |
< |
char *tralist[128]; /* list of modifers to trace (or no) */ |
52 |
< |
int traincl = -1; /* include == 1, exclude == 0 */ |
53 |
< |
#define MAXTSET 511 /* maximum number in trace set */ |
49 |
> |
#ifndef MAXTSET |
50 |
> |
#define MAXTSET 8191 /* maximum number in trace set */ |
51 |
> |
#endif |
52 |
|
OBJECT traset[MAXTSET+1]={0}; /* trace include/exclude set */ |
53 |
|
|
56 |
– |
int hresolu = 0; /* horizontal (scan) size */ |
57 |
– |
int vresolu = 0; /* vertical resolution */ |
58 |
– |
|
59 |
– |
double dstrsrc = 0.0; /* square source distribution */ |
60 |
– |
double shadthresh = .03; /* shadow threshold */ |
61 |
– |
double shadcert = .75; /* shadow certainty */ |
62 |
– |
int directrelay = 2; /* number of source relays */ |
63 |
– |
int vspretest = 512; /* virtual source pretest density */ |
64 |
– |
int directvis = 1; /* sources visible? */ |
65 |
– |
double srcsizerat = .2; /* maximum ratio source size/dist. */ |
66 |
– |
|
67 |
– |
COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
68 |
– |
COLOR salbedo = BLKCOLOR; /* global scattering albedo */ |
69 |
– |
double seccg = 0.; /* global scattering eccentricity */ |
70 |
– |
double ssampdist = 0.; /* scatter sampling distance */ |
71 |
– |
|
72 |
– |
double specthresh = .15; /* specular sampling threshold */ |
73 |
– |
double specjitter = 1.; /* specular sampling jitter */ |
74 |
– |
|
75 |
– |
int backvis = 1; /* back face visibility */ |
76 |
– |
|
77 |
– |
int maxdepth = 8; /* maximum recursion depth */ |
78 |
– |
double minweight = 2e-3; /* minimum ray weight */ |
79 |
– |
|
80 |
– |
char *ambfile = NULL; /* ambient file name */ |
81 |
– |
COLOR ambval = BLKCOLOR; /* ambient value */ |
82 |
– |
int ambvwt = 0; /* initial weight for ambient value */ |
83 |
– |
double ambacc = 0.15; /* ambient accuracy */ |
84 |
– |
int ambres = 256; /* ambient resolution */ |
85 |
– |
int ambdiv = 1024; /* ambient divisions */ |
86 |
– |
int ambssamp = 512; /* ambient super-samples */ |
87 |
– |
int ambounce = 0; /* ambient bounces */ |
88 |
– |
char *amblist[128]; /* ambient include/exclude list */ |
89 |
– |
int ambincl = -1; /* include == 1, exclude == 0 */ |
90 |
– |
|
91 |
– |
static int castonly = 0; |
92 |
– |
|
54 |
|
static RAY thisray; /* for our convenience */ |
55 |
|
|
56 |
|
typedef void putf_t(double v); |
57 |
|
static putf_t puta, putd, putf; |
58 |
|
|
59 |
|
typedef void oputf_t(RAY *r); |
60 |
< |
static oputf_t oputo, oputd, oputv, oputl, oputL, oputc, |
61 |
< |
oputp, oputn, oputN, oputs, oputw, oputm; |
60 |
> |
static oputf_t oputo, oputd, oputv, oputV, oputl, oputL, oputc, oputp, |
61 |
> |
oputn, oputN, oputs, oputw, oputW, oputm, oputM, oputtilde; |
62 |
|
|
63 |
|
static void setoutput(char *vs); |
64 |
< |
static void tranotify(OBJECT obj); |
64 |
> |
extern void tranotify(OBJECT obj); |
65 |
|
static void bogusray(void); |
66 |
< |
static void rad(FVECT org, FVECT dir, double dmax); |
67 |
< |
static void irrad(FVECT org, FVECT dir); |
68 |
< |
static void printvals(RAY *r); |
69 |
< |
static int getvec(FVECT vec, int fmt, FILE *fp); |
70 |
< |
static void tabin(RAY *r); |
71 |
< |
static void ourtrace(RAY *r); |
66 |
> |
static void rad(FVECT org, FVECT dir, double dmax); |
67 |
> |
static void irrad(FVECT org, FVECT dir); |
68 |
> |
static int printvals(RAY *r); |
69 |
> |
static int getvec(FVECT vec, int fmt, FILE *fp); |
70 |
> |
static void tabin(RAY *r); |
71 |
> |
static void ourtrace(RAY *r); |
72 |
|
|
73 |
|
static oputf_t *ray_out[16], *every_out[16]; |
74 |
|
static putf_t *putreal; |
75 |
|
|
115 |
– |
void (*addobjnotify[])() = {ambnotify, tranotify, NULL}; |
76 |
|
|
117 |
– |
|
77 |
|
void |
78 |
|
quit( /* quit program */ |
79 |
|
int code |
80 |
|
) |
81 |
|
{ |
82 |
< |
#ifndef NON_POSIX /* XXX we don't clean up elsewhere? */ |
82 |
> |
if (ray_pnprocs > 0) /* close children if any */ |
83 |
> |
ray_pclose(0); |
84 |
> |
#ifndef NON_POSIX |
85 |
|
headclean(); /* delete header file */ |
86 |
|
pfclean(); /* clean up persist files */ |
87 |
|
#endif |
89 |
|
} |
90 |
|
|
91 |
|
|
92 |
< |
extern char * |
92 |
> |
char * |
93 |
|
formstr( /* return format identifier */ |
94 |
|
int f |
95 |
|
) |
109 |
|
char *fname |
110 |
|
) |
111 |
|
{ |
112 |
< |
long vcount = hresolu>1 ? hresolu*vresolu : vresolu; |
112 |
> |
unsigned long vcount = (hresolu > 1) ? (unsigned long)hresolu*vresolu |
113 |
> |
: vresolu; |
114 |
|
long nextflush = hresolu; |
115 |
|
FILE *fp; |
116 |
|
double d; |
122 |
|
sprintf(errmsg, "cannot open input file \"%s\"", fname); |
123 |
|
error(SYSTEM, errmsg); |
124 |
|
} |
163 |
– |
#ifdef _WIN32 |
125 |
|
if (inform != 'a') |
126 |
|
SET_FILE_BINARY(fp); |
166 |
– |
#endif |
127 |
|
/* set up output */ |
128 |
|
setoutput(outvals); |
129 |
|
switch (outform) { |
137 |
|
default: |
138 |
|
error(CONSISTENCY, "botched output format"); |
139 |
|
} |
140 |
+ |
ray_fifo_out = printvals; |
141 |
|
if (hresolu > 0) { |
142 |
|
if (vresolu > 0) |
143 |
|
fprtresolu(hresolu, vresolu, stdout); |
149 |
|
|
150 |
|
d = normalize(direc); |
151 |
|
if (d == 0.0) { /* zero ==> flush */ |
152 |
+ |
if (ray_pnprocs > 1 && ray_fifo_flush() < 0) |
153 |
+ |
error(USER, "lost children"); |
154 |
|
bogusray(); |
155 |
< |
if (--nextflush <= 0 || vcount <= 0) { |
155 |
> |
if (--nextflush <= 0 || !vcount) { |
156 |
|
fflush(stdout); |
157 |
|
nextflush = hresolu; |
158 |
|
} |
159 |
< |
} else { |
197 |
< |
samplendx++; |
198 |
< |
/* compute and print */ |
159 |
> |
} else { /* compute and print */ |
160 |
|
if (imm_irrad) |
161 |
|
irrad(orig, direc); |
162 |
|
else |
163 |
|
rad(orig, direc, lim_dist ? d : 0.0); |
164 |
|
/* flush if time */ |
165 |
< |
if (--nextflush == 0) { |
165 |
> |
if (!--nextflush) { |
166 |
> |
if (ray_pnprocs > 1 && ray_fifo_flush() < 0) |
167 |
> |
error(USER, "lost children"); |
168 |
|
fflush(stdout); |
169 |
|
nextflush = hresolu; |
170 |
|
} |
171 |
|
} |
172 |
|
if (ferror(stdout)) |
173 |
|
error(SYSTEM, "write error"); |
174 |
< |
if (--vcount == 0) /* check for end */ |
174 |
> |
if (vcount && !--vcount) /* check for end */ |
175 |
|
break; |
176 |
|
} |
177 |
< |
fflush(stdout); |
178 |
< |
if (vcount > 0) |
179 |
< |
error(USER, "read error"); |
177 |
> |
if (ray_pnprocs > 1 && ray_fifo_flush() < 0) |
178 |
> |
error(USER, "unable to complete processing"); |
179 |
> |
if (fflush(stdout) < 0) |
180 |
> |
error(SYSTEM, "write error"); |
181 |
> |
if (vcount) |
182 |
> |
error(USER, "unexpected EOF on input"); |
183 |
|
if (fname != NULL) |
184 |
|
fclose(fp); |
185 |
|
} |
186 |
|
|
187 |
|
|
188 |
|
static void |
189 |
+ |
trace_sources(void) /* trace rays to light sources, also */ |
190 |
+ |
{ |
191 |
+ |
int sn; |
192 |
+ |
|
193 |
+ |
for (sn = 0; sn < nsources; sn++) |
194 |
+ |
source[sn].sflags |= SFOLLOW; |
195 |
+ |
} |
196 |
+ |
|
197 |
+ |
|
198 |
+ |
static void |
199 |
|
setoutput( /* set up output tables */ |
200 |
< |
register char *vs |
200 |
> |
char *vs |
201 |
|
) |
202 |
|
{ |
203 |
< |
register oputf_t **table = ray_out; |
203 |
> |
oputf_t **table = ray_out; |
204 |
|
|
205 |
|
castonly = 1; |
206 |
|
while (*vs) |
207 |
|
switch (*vs++) { |
208 |
+ |
case 'T': /* trace sources */ |
209 |
+ |
if (!*vs) break; |
210 |
+ |
trace_sources(); |
211 |
+ |
/* fall through */ |
212 |
|
case 't': /* trace */ |
213 |
+ |
if (!*vs) break; |
214 |
|
*table = NULL; |
215 |
|
table = every_out; |
216 |
|
trace = ourtrace; |
226 |
|
*table++ = oputv; |
227 |
|
castonly = 0; |
228 |
|
break; |
229 |
+ |
case 'V': /* contribution */ |
230 |
+ |
*table++ = oputV; |
231 |
+ |
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0)) |
232 |
+ |
error(WARNING, |
233 |
+ |
"-otV accuracy depends on -aa 0 -as 0"); |
234 |
+ |
break; |
235 |
|
case 'l': /* effective distance */ |
236 |
|
*table++ = oputl; |
237 |
|
castonly = 0; |
258 |
|
case 'w': /* weight */ |
259 |
|
*table++ = oputw; |
260 |
|
break; |
261 |
+ |
case 'W': /* coefficient */ |
262 |
+ |
*table++ = oputW; |
263 |
+ |
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0)) |
264 |
+ |
error(WARNING, |
265 |
+ |
"-otW accuracy depends on -aa 0 -as 0"); |
266 |
+ |
break; |
267 |
|
case 'm': /* modifier */ |
268 |
|
*table++ = oputm; |
269 |
|
break; |
270 |
+ |
case 'M': /* material */ |
271 |
+ |
*table++ = oputM; |
272 |
+ |
break; |
273 |
+ |
case '~': /* tilde */ |
274 |
+ |
*table++ = oputtilde; |
275 |
+ |
break; |
276 |
|
} |
277 |
|
*table = NULL; |
278 |
|
} |
283 |
|
{ |
284 |
|
thisray.rorg[0] = thisray.rorg[1] = thisray.rorg[2] = |
285 |
|
thisray.rdir[0] = thisray.rdir[1] = thisray.rdir[2] = 0.0; |
286 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
286 |
> |
thisray.rmax = 0.0; |
287 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
288 |
|
printvals(&thisray); |
289 |
|
} |
290 |
|
|
299 |
|
VCOPY(thisray.rorg, org); |
300 |
|
VCOPY(thisray.rdir, dir); |
301 |
|
thisray.rmax = dmax; |
302 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
302 |
> |
if (ray_pnprocs > 1) { |
303 |
> |
if (ray_fifo_in(&thisray) < 0) |
304 |
> |
error(USER, "lost children"); |
305 |
> |
return; |
306 |
> |
} |
307 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
308 |
|
if (castonly) { |
309 |
|
if (!localhit(&thisray, &thescene)) { |
310 |
|
if (thisray.ro == &Aftplane) { /* clipped */ |
314 |
|
sourcehit(&thisray); |
315 |
|
} |
316 |
|
} else |
317 |
< |
rayvalue(&thisray); |
317 |
> |
ray_trace(&thisray); |
318 |
|
printvals(&thisray); |
319 |
|
} |
320 |
|
|
325 |
|
FVECT dir |
326 |
|
) |
327 |
|
{ |
328 |
< |
register int i; |
329 |
< |
|
330 |
< |
for (i = 0; i < 3; i++) { |
331 |
< |
thisray.rorg[i] = org[i] + dir[i]; |
332 |
< |
thisray.rdir[i] = -dir[i]; |
333 |
< |
} |
329 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
328 |
> |
VSUM(thisray.rorg, org, dir, 1.1e-4); |
329 |
> |
thisray.rdir[0] = -dir[0]; |
330 |
> |
thisray.rdir[1] = -dir[1]; |
331 |
> |
thisray.rdir[2] = -dir[2]; |
332 |
> |
thisray.rmax = 0.0; |
333 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
334 |
|
/* pretend we hit surface */ |
335 |
< |
thisray.rot = 1.0-1e-4; |
335 |
> |
thisray.rot = 1e-5; |
336 |
|
thisray.rod = 1.0; |
337 |
|
VCOPY(thisray.ron, dir); |
338 |
< |
for (i = 0; i < 3; i++) /* fudge factor */ |
335 |
< |
thisray.rop[i] = org[i] + 1e-4*dir[i]; |
338 |
> |
VSUM(thisray.rop, org, dir, 1e-4); |
339 |
|
/* compute and print */ |
340 |
|
(*ofun[Lamb.otype].funp)(&Lamb, &thisray); |
341 |
|
printvals(&thisray); |
342 |
|
} |
343 |
|
|
344 |
|
|
345 |
< |
static void |
345 |
> |
static int |
346 |
|
printvals( /* print requested ray values */ |
347 |
|
RAY *r |
348 |
|
) |
349 |
|
{ |
350 |
< |
register oputf_t **tp; |
350 |
> |
oputf_t **tp; |
351 |
|
|
352 |
|
if (ray_out[0] == NULL) |
353 |
< |
return; |
353 |
> |
return(0); |
354 |
|
for (tp = ray_out; *tp != NULL; tp++) |
355 |
|
(**tp)(r); |
356 |
|
if (outform == 'a') |
357 |
|
putchar('\n'); |
358 |
+ |
return(1); |
359 |
|
} |
360 |
|
|
361 |
|
|
362 |
|
static int |
363 |
|
getvec( /* get a vector from fp */ |
364 |
< |
register FVECT vec, |
364 |
> |
FVECT vec, |
365 |
|
int fmt, |
366 |
|
FILE *fp |
367 |
|
) |
369 |
|
static float vf[3]; |
370 |
|
static double vd[3]; |
371 |
|
char buf[32]; |
372 |
< |
register int i; |
372 |
> |
int i; |
373 |
|
|
374 |
|
switch (fmt) { |
375 |
|
case 'a': /* ascii */ |
397 |
|
} |
398 |
|
|
399 |
|
|
400 |
< |
static void |
400 |
> |
void |
401 |
|
tranotify( /* record new modifier */ |
402 |
|
OBJECT obj |
403 |
|
) |
404 |
|
{ |
405 |
|
static int hitlimit = 0; |
406 |
< |
register OBJREC *o = objptr(obj); |
407 |
< |
register char **tralp; |
406 |
> |
OBJREC *o = objptr(obj); |
407 |
> |
char **tralp; |
408 |
|
|
409 |
|
if (obj == OVOID) { /* starting over */ |
410 |
|
traset[0] = 0; |
431 |
|
RAY *r |
432 |
|
) |
433 |
|
{ |
434 |
< |
register oputf_t **tp; |
434 |
> |
oputf_t **tp; |
435 |
|
|
436 |
|
if (every_out[0] == NULL) |
437 |
|
return; |
443 |
|
tabin(r); |
444 |
|
for (tp = every_out; *tp != NULL; tp++) |
445 |
|
(**tp)(r); |
446 |
< |
putchar('\n'); |
446 |
> |
if (outform == 'a') |
447 |
> |
putchar('\n'); |
448 |
|
} |
449 |
|
|
450 |
|
|
453 |
|
RAY *r |
454 |
|
) |
455 |
|
{ |
456 |
< |
register RAY *rp; |
456 |
> |
const RAY *rp; |
457 |
|
|
458 |
|
for (rp = r->parent; rp != NULL; rp = rp->parent) |
459 |
|
putchar('\t'); |
487 |
|
RAY *r |
488 |
|
) |
489 |
|
{ |
485 |
– |
COLR cout; |
486 |
– |
|
490 |
|
if (outform == 'c') { |
491 |
+ |
COLR cout; |
492 |
|
setcolr(cout, colval(r->rcol,RED), |
493 |
|
colval(r->rcol,GRN), |
494 |
|
colval(r->rcol,BLU)); |
502 |
|
|
503 |
|
|
504 |
|
static void |
505 |
+ |
oputV( /* print value contribution */ |
506 |
+ |
RAY *r |
507 |
+ |
) |
508 |
+ |
{ |
509 |
+ |
double contr[3]; |
510 |
+ |
|
511 |
+ |
raycontrib(contr, r, PRIMARY); |
512 |
+ |
multcolor(contr, r->rcol); |
513 |
+ |
(*putreal)(contr[RED]); |
514 |
+ |
(*putreal)(contr[GRN]); |
515 |
+ |
(*putreal)(contr[BLU]); |
516 |
+ |
} |
517 |
+ |
|
518 |
+ |
|
519 |
+ |
static void |
520 |
|
oputl( /* print effective distance */ |
521 |
|
RAY *r |
522 |
|
) |
621 |
|
|
622 |
|
|
623 |
|
static void |
624 |
+ |
oputW( /* print coefficient */ |
625 |
+ |
RAY *r |
626 |
+ |
) |
627 |
+ |
{ |
628 |
+ |
double contr[3]; |
629 |
+ |
|
630 |
+ |
raycontrib(contr, r, PRIMARY); |
631 |
+ |
(*putreal)(contr[RED]); |
632 |
+ |
(*putreal)(contr[GRN]); |
633 |
+ |
(*putreal)(contr[BLU]); |
634 |
+ |
} |
635 |
+ |
|
636 |
+ |
|
637 |
+ |
static void |
638 |
|
oputm( /* print modifier */ |
639 |
|
RAY *r |
640 |
|
) |
647 |
|
else |
648 |
|
putchar('*'); |
649 |
|
putchar('\t'); |
650 |
+ |
} |
651 |
+ |
|
652 |
+ |
|
653 |
+ |
static void |
654 |
+ |
oputM( /* print material */ |
655 |
+ |
RAY *r |
656 |
+ |
) |
657 |
+ |
{ |
658 |
+ |
OBJREC *mat; |
659 |
+ |
|
660 |
+ |
if (r->ro != NULL) { |
661 |
+ |
if ((mat = findmaterial(r->ro)) != NULL) |
662 |
+ |
fputs(mat->oname, stdout); |
663 |
+ |
else |
664 |
+ |
fputs(VOIDID, stdout); |
665 |
+ |
} else |
666 |
+ |
putchar('*'); |
667 |
+ |
putchar('\t'); |
668 |
+ |
} |
669 |
+ |
|
670 |
+ |
|
671 |
+ |
static void |
672 |
+ |
oputtilde( /* output tilde (spacer) */ |
673 |
+ |
RAY *r |
674 |
+ |
) |
675 |
+ |
{ |
676 |
+ |
fputs("~\t", stdout); |
677 |
|
} |
678 |
|
|
679 |
|
|