| 9 |
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*/ |
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|
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#include "ray.h" |
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+ |
#include "platform.h" |
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#include "source.h" |
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#include "view.h" |
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#include "random.h" |
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|
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#define DEGREE (PI/180.) |
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|
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< |
#define MAXNT 180 /* maximum number of theta divisions */ |
| 19 |
> |
#define MAXNT 181 /* maximum number of theta divisions */ |
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#define MAXNP 360 /* maximum number of phi divisions */ |
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|
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extern char *progname; /* global argv[0] */ |
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1.,180.,180.,0.,0.,0.,0., |
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{0.,0.,0.},{0.,0.,0.},0.,0.}; |
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|
| 30 |
< |
unsigned long nsamps = 10000; /* desired number of initial samples */ |
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< |
unsigned long nssamps = 9000; /* number of super-samples */ |
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> |
long nsamps = 10000; /* desired number of initial samples */ |
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int ndsamps = 32; /* number of direct samples */ |
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int nprocs = 1; /* number of rendering processes */ |
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|
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over_options(); |
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printf("-n %-9d\t\t\t# number of processes\n", nprocs); |
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printf("-rd %-9ld\t\t\t# ray directions\n", nsamps); |
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– |
/* printf("-rs %-9ld\t\t\t# ray super-samples\n", nssamps); */ |
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printf("-dn %-9d\t\t\t# direct number of samples\n", ndsamps); |
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printf("-vp %f %f %f\t# view point\n", |
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ourview.vp[0], ourview.vp[1], ourview.vp[2]); |
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int ec; |
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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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> |
ray_pclose(0); |
| 80 |
> |
else if (ray_pnprocs < 0) |
| 81 |
> |
_exit(ec); /* avoid flush in child */ |
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exit(ec); |
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} |
| 84 |
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|
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if (argv[i][1] == 'r') { /* sampling options */ |
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if (argv[i][2] == 'd') |
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nsamps = atol(argv[++i]); |
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– |
else if (argv[i][2] == 's') |
| 133 |
– |
nssamps = atol(argv[++i]); |
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else { |
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sprintf(errmsg, "bad option at '%s'", argv[i]); |
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error(USER, errmsg); |
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{ |
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int warnedneg; |
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|
char linebuf[8192]; |
| 211 |
+ |
int last_pos_val = 0; |
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int nelem = 1000; |
| 213 |
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float *sarr = (float *)malloc(sizeof(float)*nelem); |
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FILE *fp; |
| 236 |
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cp = fskip(cp); |
| 237 |
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if (cp == NULL) |
| 238 |
|
break; |
| 239 |
< |
if (ntp[1] > 1 && sarr[ntp[1]+1] <= sarr[ntp[1]]) { |
| 239 |
> |
if (ntp[1] > 1 && sarr[ntp[1]+1] <= sarr[ntp[1]]+FTINY) { |
| 240 |
|
sprintf(errmsg, |
| 241 |
|
"Phi values not monotinically increasing in sensor file '%s'", |
| 242 |
|
sfile); |
| 262 |
|
cp = fskip(cp); |
| 263 |
|
if (cp == NULL) |
| 264 |
|
break; |
| 265 |
< |
if (i && sarr[i] < .0) { |
| 265 |
> |
if (sarr[i] < .0) { |
| 266 |
|
if (!warnedneg++) { |
| 267 |
|
sprintf(errmsg, |
| 268 |
|
"Negative value(s) in sensor file '%s' (ignored)\n", sfile); |
| 269 |
|
error(WARNING, errmsg); |
| 270 |
|
} |
| 271 |
|
sarr[i] = .0; |
| 272 |
< |
} |
| 272 |
> |
} else if (sarr[i] > FTINY && i > ntp[0]*(ntp[1]+1)) |
| 273 |
> |
last_pos_val = i; |
| 274 |
|
++i; |
| 275 |
|
} |
| 276 |
< |
if (i == ntp[0]*(ntp[1]+1)) |
| 276 |
> |
if (i == ntp[0]*(ntp[1]+1)) /* empty line? */ |
| 277 |
|
break; |
| 278 |
|
if (ntp[0] > 1 && sarr[ntp[0]*(ntp[1]+1)] <= |
| 279 |
|
sarr[(ntp[0]-1)*(ntp[1]+1)]) { |
| 289 |
|
error(USER, errmsg); |
| 290 |
|
} |
| 291 |
|
} |
| 292 |
< |
nelem = i; |
| 292 |
> |
/* truncate zero region */ |
| 293 |
> |
ntp[0] = (last_pos_val + ntp[1])/(ntp[1]+1) - 1; |
| 294 |
> |
nelem = (ntp[0]+1)*(ntp[1]+1); |
| 295 |
|
fclose(fp); |
| 296 |
|
errmsg[0] = '\0'; /* sanity checks */ |
| 297 |
< |
if (ntp[0] <= 0) |
| 298 |
< |
sprintf(errmsg, "no data in sensor file '%s'", sfile); |
| 297 |
> |
if (!last_pos_val) |
| 298 |
> |
sprintf(errmsg, "no positive sensor values in file '%s'", sfile); |
| 299 |
|
else if (fabs(sarr[ntp[1]+1]) > FTINY) |
| 300 |
|
sprintf(errmsg, "minimum theta must be 0 in sensor file '%s'", |
| 301 |
|
sfile); |
| 302 |
|
else if (fabs(sarr[1]) > FTINY) |
| 303 |
|
sprintf(errmsg, "minimum phi must be 0 in sensor file '%s'", |
| 304 |
|
sfile); |
| 305 |
< |
else if (sarr[ntp[1]] <= FTINY) |
| 305 |
> |
else if (sarr[ntp[1]] < 270.-FTINY) |
| 306 |
|
sprintf(errmsg, |
| 307 |
< |
"maximum phi must be positive in sensor file '%s'", |
| 307 |
> |
"maximum phi must be 270 or greater in sensor file '%s'", |
| 308 |
|
sfile); |
| 309 |
< |
else if (sarr[ntp[0]*(ntp[1]+1)] <= FTINY) |
| 309 |
> |
else if (sarr[ntp[1]] >= 360.-FTINY) |
| 310 |
|
sprintf(errmsg, |
| 311 |
< |
"maximum theta must be positive in sensor file '%s'", |
| 311 |
> |
"maximum phi must be less than 360 in sensor file '%s'", |
| 312 |
|
sfile); |
| 313 |
|
if (errmsg[0]) |
| 314 |
|
error(USER, errmsg); |
| 321 |
|
char *sfile |
| 322 |
|
) |
| 323 |
|
{ |
| 324 |
< |
int samptot = nsamps; |
| 324 |
> |
long samptot = nsamps; |
| 325 |
|
float *rowp, *rowp1; |
| 326 |
|
double rowsum[MAXNT], rowomega[MAXNT]; |
| 327 |
|
double thdiv[MAXNT+1], phdiv[MAXNP+1]; |
| 369 |
|
psize = PI*tsize/maxtheta; |
| 370 |
|
if (sntp[0]*sntp[1] < samptot) /* don't overdo resolution */ |
| 371 |
|
samptot = sntp[0]*sntp[1]; |
| 372 |
< |
ntheta = (int)(sqrt((double)samptot*tsize/psize) + 0.5); |
| 372 |
> |
ntheta = (int)(sqrt((double)samptot*tsize/psize)*sntp[0]/sntp[1]) + 1; |
| 373 |
|
if (ntheta > MAXNT) |
| 374 |
|
ntheta = MAXNT; |
| 375 |
|
nphi = samptot/ntheta; |
| 401 |
|
tvals[i] = 1. - ( (1.-frac)*cos(thdiv[t]) + |
| 402 |
|
frac*cos(thdiv[t+1]) ); |
| 403 |
|
/* offset b/c sensor values are centered */ |
| 404 |
< |
if (!t || (t < sntp[0]-1) & (frac >= 0.5)) |
| 404 |
> |
if ((t < sntp[0]-1) & (!t | (frac >= 0.5))) { |
| 405 |
|
frac -= 0.5; |
| 406 |
< |
else { |
| 406 |
> |
} else { |
| 407 |
|
frac += 0.5; |
| 408 |
|
--t; |
| 409 |
|
} |
| 427 |
|
} |
| 428 |
|
pvals[i*(nphi+1) + nphi] = phdiv[sntp[1]]; |
| 429 |
|
} |
| 430 |
+ |
/* duplicate final row */ |
| 431 |
+ |
memcpy(pvals+ntheta*(nphi+1), pvals+(ntheta-1)*(nphi+1), |
| 432 |
+ |
sizeof(*pvals)*(nphi+1)); |
| 433 |
|
tvals[0] = .0f; |
| 434 |
|
tvals[ntheta] = (float)tsize; |
| 435 |
|
} |
