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[AMBLLEN]; /* 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, oputp, |
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 raycast(RAY *r); |
67 |
> |
static void rayirrad(RAY *r); |
68 |
> |
static void rtcompute(FVECT org, FVECT dir, double dmax); |
69 |
> |
static int printvals(RAY *r); |
70 |
> |
static int getvec(FVECT vec, int fmt, FILE *fp); |
71 |
> |
static void tabin(RAY *r); |
72 |
> |
static void ourtrace(RAY *r); |
73 |
|
|
74 |
|
static oputf_t *ray_out[16], *every_out[16]; |
75 |
|
static putf_t *putreal; |
76 |
|
|
115 |
– |
void (*addobjnotify[])() = {ambnotify, tranotify, NULL}; |
77 |
|
|
117 |
– |
|
78 |
|
void |
79 |
|
quit( /* quit program */ |
80 |
|
int code |
81 |
|
) |
82 |
|
{ |
83 |
< |
#ifndef NON_POSIX /* XXX we don't clean up elsewhere? */ |
84 |
< |
headclean(); /* delete header file */ |
85 |
< |
pfclean(); /* clean up persist files */ |
83 |
> |
if (ray_pnprocs > 0) /* close children if any */ |
84 |
> |
ray_pclose(0); |
85 |
> |
#ifndef NON_POSIX |
86 |
> |
else if (!ray_pnprocs) { |
87 |
> |
headclean(); /* delete header file */ |
88 |
> |
pfclean(); /* clean up persist files */ |
89 |
> |
} |
90 |
|
#endif |
91 |
|
exit(code); |
92 |
|
} |
93 |
|
|
94 |
|
|
95 |
< |
extern char * |
95 |
> |
char * |
96 |
|
formstr( /* return format identifier */ |
97 |
|
int f |
98 |
|
) |
109 |
|
|
110 |
|
extern void |
111 |
|
rtrace( /* trace rays from file */ |
112 |
< |
char *fname |
112 |
> |
char *fname, |
113 |
> |
int nproc |
114 |
|
) |
115 |
|
{ |
116 |
< |
long vcount = hresolu>1 ? hresolu*vresolu : vresolu; |
116 |
> |
unsigned long vcount = (hresolu > 1) ? (unsigned long)hresolu*vresolu |
117 |
> |
: vresolu; |
118 |
|
long nextflush = hresolu; |
119 |
|
FILE *fp; |
120 |
|
double d; |
130 |
|
SET_FILE_BINARY(fp); |
131 |
|
/* set up output */ |
132 |
|
setoutput(outvals); |
133 |
+ |
if (imm_irrad) |
134 |
+ |
castonly = 0; |
135 |
+ |
else if (castonly) |
136 |
+ |
nproc = 1; /* don't bother multiprocessing */ |
137 |
|
switch (outform) { |
138 |
|
case 'a': putreal = puta; break; |
139 |
|
case 'f': putreal = putf; break; |
145 |
|
default: |
146 |
|
error(CONSISTENCY, "botched output format"); |
147 |
|
} |
148 |
+ |
if (nproc > 1) { /* start multiprocessing */ |
149 |
+ |
ray_popen(nproc); |
150 |
+ |
ray_fifo_out = printvals; |
151 |
+ |
} |
152 |
|
if (hresolu > 0) { |
153 |
|
if (vresolu > 0) |
154 |
|
fprtresolu(hresolu, vresolu, stdout); |
160 |
|
|
161 |
|
d = normalize(direc); |
162 |
|
if (d == 0.0) { /* zero ==> flush */ |
163 |
< |
bogusray(); |
164 |
< |
if (--nextflush <= 0 || vcount <= 0) { |
163 |
> |
if (--nextflush <= 0 || !vcount) { |
164 |
> |
if (nproc > 1 && ray_fifo_flush() < 0) |
165 |
> |
error(USER, "lost children"); |
166 |
> |
bogusray(); |
167 |
|
fflush(stdout); |
168 |
|
nextflush = hresolu; |
169 |
< |
} |
170 |
< |
} else { |
171 |
< |
samplendx++; |
172 |
< |
/* compute and print */ |
197 |
< |
if (imm_irrad) |
198 |
< |
irrad(orig, direc); |
199 |
< |
else |
200 |
< |
rad(orig, direc, lim_dist ? d : 0.0); |
169 |
> |
} else |
170 |
> |
bogusray(); |
171 |
> |
} else { /* compute and print */ |
172 |
> |
rtcompute(orig, direc, lim_dist ? d : 0.0); |
173 |
|
/* flush if time */ |
174 |
< |
if (--nextflush == 0) { |
174 |
> |
if (!--nextflush) { |
175 |
> |
if (nproc > 1 && ray_fifo_flush() < 0) |
176 |
> |
error(USER, "lost children"); |
177 |
|
fflush(stdout); |
178 |
|
nextflush = hresolu; |
179 |
|
} |
180 |
|
} |
181 |
|
if (ferror(stdout)) |
182 |
|
error(SYSTEM, "write error"); |
183 |
< |
if (--vcount == 0) /* check for end */ |
183 |
> |
if (vcount && !--vcount) /* check for end */ |
184 |
|
break; |
185 |
|
} |
186 |
< |
fflush(stdout); |
187 |
< |
if (vcount > 0) |
186 |
> |
if (nproc > 1) { /* clean up children */ |
187 |
> |
if (ray_fifo_flush() < 0) |
188 |
> |
error(USER, "unable to complete processing"); |
189 |
> |
ray_pclose(0); |
190 |
> |
} |
191 |
> |
if (fflush(stdout) < 0) |
192 |
> |
error(SYSTEM, "write error"); |
193 |
> |
if (vcount) |
194 |
|
error(USER, "unexpected EOF on input"); |
195 |
|
if (fname != NULL) |
196 |
|
fclose(fp); |
209 |
|
|
210 |
|
static void |
211 |
|
setoutput( /* set up output tables */ |
212 |
< |
register char *vs |
212 |
> |
char *vs |
213 |
|
) |
214 |
|
{ |
215 |
< |
register oputf_t **table = ray_out; |
215 |
> |
oputf_t **table = ray_out; |
216 |
|
|
217 |
|
castonly = 1; |
218 |
|
while (*vs) |
238 |
|
*table++ = oputv; |
239 |
|
castonly = 0; |
240 |
|
break; |
241 |
+ |
case 'V': /* contribution */ |
242 |
+ |
*table++ = oputV; |
243 |
+ |
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0)) |
244 |
+ |
error(WARNING, |
245 |
+ |
"-otV accuracy depends on -aa 0 -as 0"); |
246 |
+ |
break; |
247 |
|
case 'l': /* effective distance */ |
248 |
|
*table++ = oputl; |
249 |
|
castonly = 0; |
302 |
|
|
303 |
|
|
304 |
|
static void |
305 |
< |
rad( /* compute and print ray value(s) */ |
306 |
< |
FVECT org, |
321 |
< |
FVECT dir, |
322 |
< |
double dmax |
305 |
> |
raycast( /* compute first ray intersection only */ |
306 |
> |
RAY *r |
307 |
|
) |
308 |
|
{ |
309 |
< |
VCOPY(thisray.rorg, org); |
310 |
< |
VCOPY(thisray.rdir, dir); |
311 |
< |
thisray.rmax = dmax; |
312 |
< |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
313 |
< |
if (castonly) { |
314 |
< |
if (!localhit(&thisray, &thescene)) { |
315 |
< |
if (thisray.ro == &Aftplane) { /* clipped */ |
332 |
< |
thisray.ro = NULL; |
333 |
< |
thisray.rot = FHUGE; |
334 |
< |
} else |
335 |
< |
sourcehit(&thisray); |
336 |
< |
} |
337 |
< |
} else |
338 |
< |
rayvalue(&thisray); |
339 |
< |
printvals(&thisray); |
309 |
> |
if (!localhit(r, &thescene)) { |
310 |
> |
if (r->ro == &Aftplane) { /* clipped */ |
311 |
> |
r->ro = NULL; |
312 |
> |
r->rot = FHUGE; |
313 |
> |
} else |
314 |
> |
sourcehit(r); |
315 |
> |
} |
316 |
|
} |
317 |
|
|
318 |
|
|
319 |
|
static void |
320 |
< |
irrad( /* compute immediate irradiance value */ |
321 |
< |
FVECT org, |
346 |
< |
FVECT dir |
320 |
> |
rayirrad( /* compute irradiance rather than radiance */ |
321 |
> |
RAY *r |
322 |
|
) |
323 |
|
{ |
324 |
< |
register int i; |
324 |
> |
void (*old_revf)(RAY *) = r->revf; |
325 |
|
|
326 |
< |
for (i = 0; i < 3; i++) { |
327 |
< |
thisray.rorg[i] = org[i] + dir[i]; |
328 |
< |
thisray.rdir[i] = -dir[i]; |
329 |
< |
} |
330 |
< |
thisray.rmax = 0.0; |
326 |
> |
r->rot = 1e-5; /* pretend we hit surface */ |
327 |
> |
VSUM(r->rop, r->rorg, r->rdir, r->rot); |
328 |
> |
r->ron[0] = -r->rdir[0]; |
329 |
> |
r->ron[1] = -r->rdir[1]; |
330 |
> |
r->ron[2] = -r->rdir[2]; |
331 |
> |
r->rod = 1.0; |
332 |
> |
/* compute result */ |
333 |
> |
r->revf = raytrace; |
334 |
> |
(*ofun[Lamb.otype].funp)(&Lamb, r); |
335 |
> |
r->revf = old_revf; |
336 |
> |
} |
337 |
> |
|
338 |
> |
|
339 |
> |
static void |
340 |
> |
rtcompute( /* compute and print ray value(s) */ |
341 |
> |
FVECT org, |
342 |
> |
FVECT dir, |
343 |
> |
double dmax |
344 |
> |
) |
345 |
> |
{ |
346 |
> |
/* set up ray */ |
347 |
|
rayorigin(&thisray, PRIMARY, NULL, NULL); |
348 |
< |
/* pretend we hit surface */ |
349 |
< |
thisray.rot = 1.0-1e-4; |
350 |
< |
thisray.rod = 1.0; |
351 |
< |
VCOPY(thisray.ron, dir); |
352 |
< |
for (i = 0; i < 3; i++) /* fudge factor */ |
353 |
< |
thisray.rop[i] = org[i] + 1e-4*dir[i]; |
354 |
< |
/* compute and print */ |
355 |
< |
(*ofun[Lamb.otype].funp)(&Lamb, &thisray); |
348 |
> |
if (imm_irrad) { |
349 |
> |
VSUM(thisray.rorg, org, dir, 1.1e-4); |
350 |
> |
thisray.rdir[0] = -dir[0]; |
351 |
> |
thisray.rdir[1] = -dir[1]; |
352 |
> |
thisray.rdir[2] = -dir[2]; |
353 |
> |
thisray.rmax = 0.0; |
354 |
> |
thisray.revf = rayirrad; |
355 |
> |
} else { |
356 |
> |
VCOPY(thisray.rorg, org); |
357 |
> |
VCOPY(thisray.rdir, dir); |
358 |
> |
thisray.rmax = dmax; |
359 |
> |
if (castonly) |
360 |
> |
thisray.revf = raycast; |
361 |
> |
} |
362 |
> |
if (ray_pnprocs > 1) { /* multiprocessing FIFO? */ |
363 |
> |
if (ray_fifo_in(&thisray) < 0) |
364 |
> |
error(USER, "lost children"); |
365 |
> |
return; |
366 |
> |
} |
367 |
> |
samplendx++; /* else do it ourselves */ |
368 |
> |
rayvalue(&thisray); |
369 |
|
printvals(&thisray); |
370 |
|
} |
371 |
|
|
372 |
|
|
373 |
< |
static void |
373 |
> |
static int |
374 |
|
printvals( /* print requested ray values */ |
375 |
|
RAY *r |
376 |
|
) |
377 |
|
{ |
378 |
< |
register oputf_t **tp; |
378 |
> |
oputf_t **tp; |
379 |
|
|
380 |
|
if (ray_out[0] == NULL) |
381 |
< |
return; |
381 |
> |
return(0); |
382 |
|
for (tp = ray_out; *tp != NULL; tp++) |
383 |
|
(**tp)(r); |
384 |
|
if (outform == 'a') |
385 |
|
putchar('\n'); |
386 |
+ |
return(1); |
387 |
|
} |
388 |
|
|
389 |
|
|
390 |
|
static int |
391 |
|
getvec( /* get a vector from fp */ |
392 |
< |
register FVECT vec, |
392 |
> |
FVECT vec, |
393 |
|
int fmt, |
394 |
|
FILE *fp |
395 |
|
) |
397 |
|
static float vf[3]; |
398 |
|
static double vd[3]; |
399 |
|
char buf[32]; |
400 |
< |
register int i; |
400 |
> |
int i; |
401 |
|
|
402 |
|
switch (fmt) { |
403 |
|
case 'a': /* ascii */ |
411 |
|
case 'f': /* binary float */ |
412 |
|
if (fread((char *)vf, sizeof(float), 3, fp) != 3) |
413 |
|
return(-1); |
414 |
< |
vec[0] = vf[0]; vec[1] = vf[1]; vec[2] = vf[2]; |
414 |
> |
VCOPY(vec, vf); |
415 |
|
break; |
416 |
|
case 'd': /* binary double */ |
417 |
|
if (fread((char *)vd, sizeof(double), 3, fp) != 3) |
418 |
|
return(-1); |
419 |
< |
vec[0] = vd[0]; vec[1] = vd[1]; vec[2] = vd[2]; |
419 |
> |
VCOPY(vec, vd); |
420 |
|
break; |
421 |
|
default: |
422 |
|
error(CONSISTENCY, "botched input format"); |
425 |
|
} |
426 |
|
|
427 |
|
|
428 |
< |
static void |
428 |
> |
void |
429 |
|
tranotify( /* record new modifier */ |
430 |
|
OBJECT obj |
431 |
|
) |
432 |
|
{ |
433 |
|
static int hitlimit = 0; |
434 |
< |
register OBJREC *o = objptr(obj); |
435 |
< |
register char **tralp; |
434 |
> |
OBJREC *o = objptr(obj); |
435 |
> |
char **tralp; |
436 |
|
|
437 |
|
if (obj == OVOID) { /* starting over */ |
438 |
|
traset[0] = 0; |
459 |
|
RAY *r |
460 |
|
) |
461 |
|
{ |
462 |
< |
register oputf_t **tp; |
462 |
> |
oputf_t **tp; |
463 |
|
|
464 |
|
if (every_out[0] == NULL) |
465 |
|
return; |
530 |
|
|
531 |
|
|
532 |
|
static void |
533 |
+ |
oputV( /* print value contribution */ |
534 |
+ |
RAY *r |
535 |
+ |
) |
536 |
+ |
{ |
537 |
+ |
double contr[3]; |
538 |
+ |
|
539 |
+ |
raycontrib(contr, r, PRIMARY); |
540 |
+ |
multcolor(contr, r->rcol); |
541 |
+ |
(*putreal)(contr[RED]); |
542 |
+ |
(*putreal)(contr[GRN]); |
543 |
+ |
(*putreal)(contr[BLU]); |
544 |
+ |
} |
545 |
+ |
|
546 |
+ |
|
547 |
+ |
static void |
548 |
|
oputl( /* print effective distance */ |
549 |
|
RAY *r |
550 |
|
) |
649 |
|
|
650 |
|
|
651 |
|
static void |
652 |
< |
oputW( /* print contribution */ |
652 |
> |
oputW( /* print coefficient */ |
653 |
|
RAY *r |
654 |
|
) |
655 |
|
{ |
656 |
< |
COLOR contr; |
656 |
> |
double contr[3]; |
657 |
|
|
658 |
|
raycontrib(contr, r, PRIMARY); |
659 |
< |
(*putreal)(colval(contr,RED)); |
660 |
< |
(*putreal)(colval(contr,GRN)); |
661 |
< |
(*putreal)(colval(contr,BLU)); |
659 |
> |
(*putreal)(contr[RED]); |
660 |
> |
(*putreal)(contr[GRN]); |
661 |
> |
(*putreal)(contr[BLU]); |
662 |
|
} |
663 |
|
|
664 |
|
|