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 |
89 |
|
* same as the defaults for rtrace.) |
90 |
|
*/ |
91 |
|
|
92 |
< |
#include "ray.h" |
92 |
> |
#include <string.h> |
93 |
> |
#include <time.h> |
94 |
|
|
95 |
+ |
#include "ray.h" |
96 |
|
#include "source.h" |
97 |
< |
|
97 |
> |
#include "bsdf.h" |
98 |
|
#include "ambient.h" |
98 |
– |
|
99 |
|
#include "otypes.h" |
100 |
– |
|
100 |
|
#include "random.h" |
102 |
– |
|
101 |
|
#include "data.h" |
104 |
– |
|
102 |
|
#include "font.h" |
103 |
|
|
104 |
|
char *progname = "unknown_app"; /* caller sets to argv[0] */ |
116 |
|
|
117 |
|
void (*trace)() = NULL; /* trace call */ |
118 |
|
|
119 |
< |
extern void ambnotify(); |
123 |
< |
void (*addobjnotify[])() = {ambnotify, NULL}; |
119 |
> |
void (*addobjnotify[8])() = {ambnotify, NULL}; |
120 |
|
|
121 |
|
int do_irrad = 0; /* compute irradiance? */ |
122 |
|
|
123 |
+ |
int rand_samp = 0; /* pure Monte Carlo sampling? */ |
124 |
+ |
|
125 |
|
double dstrsrc = 0.0; /* square source distribution */ |
126 |
< |
double shadthresh = .05; /* shadow threshold */ |
127 |
< |
double shadcert = .5; /* shadow certainty */ |
126 |
> |
double shadthresh = .03; /* shadow threshold */ |
127 |
> |
double shadcert = .75; /* shadow certainty */ |
128 |
|
int directrelay = 2; /* number of source relays */ |
129 |
|
int vspretest = 512; /* virtual source pretest density */ |
130 |
|
int directvis = 1; /* sources visible? */ |
140 |
|
|
141 |
|
int backvis = 1; /* back face visibility */ |
142 |
|
|
143 |
< |
int maxdepth = 6; /* maximum recursion depth */ |
144 |
< |
double minweight = 4e-3; /* minimum ray weight */ |
143 |
> |
int maxdepth = 8; /* maximum recursion depth */ |
144 |
> |
double minweight = 2e-3; /* minimum ray weight */ |
145 |
|
|
146 |
|
char *ambfile = NULL; /* ambient file name */ |
147 |
|
COLOR ambval = BLKCOLOR; /* ambient value */ |
148 |
|
int ambvwt = 0; /* initial weight for ambient value */ |
149 |
< |
double ambacc = 0.2; /* ambient accuracy */ |
150 |
< |
int ambres = 128; /* ambient resolution */ |
151 |
< |
int ambdiv = 512; /* ambient divisions */ |
152 |
< |
int ambssamp = 0; /* ambient super-samples */ |
149 |
> |
double ambacc = 0.1; /* ambient accuracy */ |
150 |
> |
int ambres = 256; /* ambient resolution */ |
151 |
> |
int ambdiv = 1024; /* ambient divisions */ |
152 |
> |
int ambssamp = 512; /* ambient super-samples */ |
153 |
|
int ambounce = 0; /* ambient bounces */ |
154 |
|
char *amblist[AMBLLEN+1]; /* ambient include/exclude list */ |
155 |
|
int ambincl = -1; /* include == 1, exclude == 0 */ |
156 |
|
|
157 |
|
|
158 |
|
void |
159 |
< |
ray_init(otnm) /* initialize ray-tracing calculation */ |
160 |
< |
char *otnm; |
159 |
> |
ray_init( /* initialize ray-tracing calculation */ |
160 |
> |
char *otnm |
161 |
> |
) |
162 |
|
{ |
163 |
|
if (nobjects > 0) /* free old scene data */ |
164 |
|
ray_done(0); |
166 |
|
if (ofun[OBJ_SPHERE].funp == o_default) |
167 |
|
initotypes(); |
168 |
|
/* initialize urand */ |
169 |
< |
if (urperm == NULL) |
169 |
> |
if (rand_samp) { |
170 |
> |
srandom((long)time(0)); |
171 |
> |
initurand(0); |
172 |
> |
} else { |
173 |
> |
srandom(0L); |
174 |
|
initurand(2048); |
175 |
+ |
} |
176 |
|
/* read scene octree */ |
177 |
|
readoct(octname = otnm, ~(IO_FILES|IO_INFO), &thescene, NULL); |
178 |
|
nsceneobjs = nobjects; |
184 |
|
} |
185 |
|
|
186 |
|
void |
187 |
< |
ray_trace(r) /* trace a primary ray */ |
188 |
< |
RAY *r; |
187 |
> |
ray_trace( /* trace a primary ray */ |
188 |
> |
RAY *r |
189 |
> |
) |
190 |
|
{ |
191 |
< |
rayorigin(r, NULL, PRIMARY, 1.0); |
191 |
> |
rayorigin(r, PRIMARY, NULL, NULL); |
192 |
|
samplendx++; |
193 |
|
rayvalue(r); /* assumes origin and direction are set */ |
194 |
|
} |
195 |
|
|
196 |
|
|
197 |
|
void |
198 |
< |
ray_done(freall) /* free ray-tracing data */ |
199 |
< |
int freall; |
198 |
> |
ray_done( /* free ray-tracing data */ |
199 |
> |
int freall |
200 |
> |
) |
201 |
|
{ |
202 |
|
retainfonts = 1; |
203 |
|
ambdone(); |
208 |
|
octdone(); |
209 |
|
thescene.cutree = EMPTY; |
210 |
|
octname = NULL; |
211 |
+ |
retainfonts = 0; |
212 |
|
if (freall) { |
206 |
– |
retainfonts = 0; |
213 |
|
freefont(NULL); |
214 |
|
freedata(NULL); |
215 |
+ |
SDfreeCache(NULL); |
216 |
|
initurand(0); |
217 |
|
} |
218 |
|
if (nobjects > 0) { |
219 |
< |
sprintf(errmsg, "%d objects left after call to ray_done()", |
220 |
< |
nobjects); |
219 |
> |
sprintf(errmsg, "%ld objects left after call to ray_done()", |
220 |
> |
(long)nobjects); |
221 |
|
error(WARNING, errmsg); |
222 |
|
} |
223 |
|
} |
224 |
|
|
225 |
|
|
226 |
|
void |
227 |
< |
ray_save(rp) /* save current parameter settings */ |
228 |
< |
RAYPARAMS *rp; |
227 |
> |
ray_save( /* save current parameter settings */ |
228 |
> |
RAYPARAMS *rp |
229 |
> |
) |
230 |
|
{ |
231 |
|
int i, ndx; |
232 |
|
|
250 |
|
rp->maxdepth = maxdepth; |
251 |
|
rp->minweight = minweight; |
252 |
|
copycolor(rp->ambval, ambval); |
253 |
< |
bzero(rp->ambfile, sizeof(rp->ambfile)); |
253 |
> |
memset(rp->ambfile, '\0', sizeof(rp->ambfile)); |
254 |
|
if (ambfile != NULL) |
255 |
|
strncpy(rp->ambfile, ambfile, sizeof(rp->ambfile)-1); |
256 |
|
rp->ambvwt = ambvwt; |
260 |
|
rp->ambssamp = ambssamp; |
261 |
|
rp->ambounce = ambounce; |
262 |
|
rp->ambincl = ambincl; |
263 |
< |
bzero(rp->amblval, sizeof(rp->amblval)); |
263 |
> |
memset(rp->amblval, '\0', sizeof(rp->amblval)); |
264 |
|
ndx = 0; |
265 |
|
for (i = 0; i < AMBLLEN && amblist[i] != NULL; i++) { |
266 |
|
int len = strlen(amblist[i]); |
275 |
|
|
276 |
|
|
277 |
|
void |
278 |
< |
ray_restore(rp) /* restore parameter settings */ |
279 |
< |
RAYPARAMS *rp; |
278 |
> |
ray_restore( /* restore parameter settings */ |
279 |
> |
RAYPARAMS *rp |
280 |
> |
) |
281 |
|
{ |
282 |
|
register int i; |
283 |
|
|
343 |
|
|
344 |
|
|
345 |
|
void |
346 |
< |
ray_defaults(rp) /* get default parameter values */ |
347 |
< |
RAYPARAMS *rp; |
346 |
> |
ray_defaults( /* get default parameter values */ |
347 |
> |
RAYPARAMS *rp |
348 |
> |
) |
349 |
|
{ |
350 |
|
int i; |
351 |
|
|
354 |
|
|
355 |
|
rp->do_irrad = 0; |
356 |
|
rp->dstrsrc = 0.0; |
357 |
< |
rp->shadthresh = .05; |
358 |
< |
rp->shadcert = .5; |
357 |
> |
rp->shadthresh = .03; |
358 |
> |
rp->shadcert = .75; |
359 |
|
rp->directrelay = 2; |
360 |
|
rp->vspretest = 512; |
361 |
|
rp->directvis = 1; |
367 |
|
rp->specthresh = .15; |
368 |
|
rp->specjitter = 1.; |
369 |
|
rp->backvis = 1; |
370 |
< |
rp->maxdepth = 6; |
371 |
< |
rp->minweight = 4e-3; |
370 |
> |
rp->maxdepth = 8; |
371 |
> |
rp->minweight = 2e-3; |
372 |
|
setcolor(rp->ambval, 0., 0., 0.); |
373 |
< |
bzero(rp->ambfile, sizeof(rp->ambfile)); |
373 |
> |
memset(rp->ambfile, '\0', sizeof(rp->ambfile)); |
374 |
|
rp->ambvwt = 0; |
375 |
< |
rp->ambres = 128; |
376 |
< |
rp->ambacc = 0.2; |
377 |
< |
rp->ambdiv = 512; |
378 |
< |
rp->ambssamp = 0; |
375 |
> |
rp->ambres = 256; |
376 |
> |
rp->ambacc = 0.15; |
377 |
> |
rp->ambdiv = 1024; |
378 |
> |
rp->ambssamp = 512; |
379 |
|
rp->ambounce = 0; |
380 |
|
rp->ambincl = -1; |
381 |
< |
bzero(rp->amblval, sizeof(rp->amblval)); |
381 |
> |
memset(rp->amblval, '\0', sizeof(rp->amblval)); |
382 |
|
for (i = AMBLLEN+1; i--; ) |
383 |
|
rp->amblndx[i] = -1; |
384 |
|
} |