| 23 |
|
* sort of context, so it is impossible to simultaneously run |
| 24 |
|
* this library on multiple scenes or in multiple threads. |
| 25 |
|
* You get one scene and one thread, and if you want more, you |
| 26 |
< |
* will have to go with the process model used by the programs |
| 27 |
< |
* gen/mkillum, hd/rholo, and px/pinterp. Finally, unrecoverable |
| 28 |
< |
* errors result in a call to the application-defined function |
| 29 |
< |
* quit(). The usual thing to do is to call exit(). |
| 26 |
> |
* will have to go with the process model defined in raypcalls.c. |
| 27 |
> |
* Finally, unrecoverable errors result in a call to the application- |
| 28 |
> |
* defined function quit(). The usual thing to do is to call exit(). |
| 29 |
|
* You might want to do something else instead, like |
| 30 |
|
* call setjmp()/longjmp() to bring you back to the calling |
| 31 |
|
* function for recovery. You may also wish to define your own |
| 90 |
|
*/ |
| 91 |
|
|
| 92 |
|
#include <string.h> |
| 93 |
+ |
#include <time.h> |
| 94 |
|
|
| 95 |
|
#include "ray.h" |
| 96 |
|
#include "source.h" |
| 97 |
+ |
#include "bsdf.h" |
| 98 |
|
#include "ambient.h" |
| 99 |
|
#include "otypes.h" |
| 100 |
|
#include "random.h" |
| 101 |
|
#include "data.h" |
| 102 |
|
#include "font.h" |
| 103 |
+ |
#include "pmapray.h" |
| 104 |
|
|
| 105 |
|
char *progname = "unknown_app"; /* caller sets to argv[0] */ |
| 106 |
|
|
| 121 |
|
|
| 122 |
|
int do_irrad = 0; /* compute irradiance? */ |
| 123 |
|
|
| 124 |
+ |
int rand_samp = 0; /* pure Monte Carlo sampling? */ |
| 125 |
+ |
|
| 126 |
|
double dstrsrc = 0.0; /* square source distribution */ |
| 127 |
|
double shadthresh = .03; /* shadow threshold */ |
| 128 |
|
double shadcert = .75; /* shadow certainty */ |
| 142 |
|
int backvis = 1; /* back face visibility */ |
| 143 |
|
|
| 144 |
|
int maxdepth = 8; /* maximum recursion depth */ |
| 145 |
< |
double minweight = 2e-3; /* minimum ray weight */ |
| 145 |
> |
double minweight = 5e-4; /* minimum ray weight */ |
| 146 |
|
|
| 147 |
|
char *ambfile = NULL; /* ambient file name */ |
| 148 |
|
COLOR ambval = BLKCOLOR; /* ambient value */ |
| 156 |
|
int ambincl = -1; /* include == 1, exclude == 0 */ |
| 157 |
|
|
| 158 |
|
|
| 159 |
< |
extern void |
| 159 |
> |
void |
| 160 |
|
ray_init( /* initialize ray-tracing calculation */ |
| 161 |
|
char *otnm |
| 162 |
|
) |
| 167 |
|
if (ofun[OBJ_SPHERE].funp == o_default) |
| 168 |
|
initotypes(); |
| 169 |
|
/* initialize urand */ |
| 170 |
< |
initurand(2048); |
| 170 |
> |
if (rand_samp) { |
| 171 |
> |
srandom((long)time(0)); |
| 172 |
> |
initurand(0); |
| 173 |
> |
} else { |
| 174 |
> |
srandom(0L); |
| 175 |
> |
initurand(2048); |
| 176 |
> |
} |
| 177 |
|
/* read scene octree */ |
| 178 |
|
readoct(octname = otnm, ~(IO_FILES|IO_INFO), &thescene, NULL); |
| 179 |
|
nsceneobjs = nobjects; |
| 180 |
+ |
/* PMAP: Init & load photon maps */ |
| 181 |
+ |
ray_init_pmap(); |
| 182 |
|
/* find and mark sources */ |
| 183 |
|
marksources(); |
| 184 |
|
/* initialize ambient calculation */ |
| 185 |
|
setambient(); |
| 186 |
< |
/* ready to go... */ |
| 186 |
> |
/* ready to go... (almost) */ |
| 187 |
|
} |
| 188 |
|
|
| 189 |
< |
extern void |
| 189 |
> |
void |
| 190 |
|
ray_trace( /* trace a primary ray */ |
| 191 |
|
RAY *r |
| 192 |
|
) |
| 193 |
|
{ |
| 194 |
< |
rayorigin(r, NULL, PRIMARY, 1.0); |
| 194 |
> |
rayorigin(r, PRIMARY, NULL, NULL); |
| 195 |
|
samplendx++; |
| 196 |
|
rayvalue(r); /* assumes origin and direction are set */ |
| 197 |
|
} |
| 198 |
|
|
| 199 |
|
|
| 200 |
< |
extern void |
| 200 |
> |
void |
| 201 |
|
ray_done( /* free ray-tracing data */ |
| 202 |
|
int freall |
| 203 |
|
) |
| 211 |
|
octdone(); |
| 212 |
|
thescene.cutree = EMPTY; |
| 213 |
|
octname = NULL; |
| 214 |
+ |
retainfonts = 0; |
| 215 |
|
if (freall) { |
| 203 |
– |
retainfonts = 0; |
| 216 |
|
freefont(NULL); |
| 217 |
|
freedata(NULL); |
| 218 |
+ |
SDfreeCache(NULL); |
| 219 |
|
initurand(0); |
| 220 |
|
} |
| 221 |
|
if (nobjects > 0) { |
| 222 |
|
sprintf(errmsg, "%ld objects left after call to ray_done()", |
| 223 |
< |
nobjects); |
| 223 |
> |
(long)nobjects); |
| 224 |
|
error(WARNING, errmsg); |
| 225 |
|
} |
| 226 |
+ |
|
| 227 |
+ |
ray_done_pmap(); |
| 228 |
|
} |
| 229 |
|
|
| 230 |
|
|
| 231 |
< |
extern void |
| 231 |
> |
void |
| 232 |
|
ray_save( /* save current parameter settings */ |
| 233 |
|
RAYPARAMS *rp |
| 234 |
|
) |
| 276 |
|
} |
| 277 |
|
while (i <= AMBLLEN) |
| 278 |
|
rp->amblndx[i++] = -1; |
| 279 |
+ |
|
| 280 |
+ |
/* PMAP: save photon mapping params */ |
| 281 |
+ |
ray_save_pmap(rp); |
| 282 |
|
} |
| 283 |
|
|
| 284 |
|
|
| 285 |
< |
extern void |
| 285 |
> |
void |
| 286 |
|
ray_restore( /* restore parameter settings */ |
| 287 |
|
RAYPARAMS *rp |
| 288 |
|
) |
| 347 |
|
ambres = rp->ambres; |
| 348 |
|
ambacc = rp->ambacc; |
| 349 |
|
} |
| 350 |
+ |
|
| 351 |
+ |
/* PMAP: restore photon mapping params */ |
| 352 |
+ |
ray_restore_pmap(rp); |
| 353 |
|
} |
| 354 |
|
|
| 355 |
|
|
| 356 |
< |
extern void |
| 356 |
> |
void |
| 357 |
|
ray_defaults( /* get default parameter values */ |
| 358 |
|
RAYPARAMS *rp |
| 359 |
|
) |
| 384 |
|
memset(rp->ambfile, '\0', sizeof(rp->ambfile)); |
| 385 |
|
rp->ambvwt = 0; |
| 386 |
|
rp->ambres = 256; |
| 387 |
< |
rp->ambacc = 0.1; |
| 387 |
> |
rp->ambacc = 0.15; |
| 388 |
|
rp->ambdiv = 1024; |
| 389 |
|
rp->ambssamp = 512; |
| 390 |
|
rp->ambounce = 0; |
| 392 |
|
memset(rp->amblval, '\0', sizeof(rp->amblval)); |
| 393 |
|
for (i = AMBLLEN+1; i--; ) |
| 394 |
|
rp->amblndx[i] = -1; |
| 395 |
+ |
|
| 396 |
+ |
/* PMAP: restore photon mapping defaults */ |
| 397 |
+ |
ray_defaults_pmap(rp); |
| 398 |
|
} |
