| 70 |
|
|
| 71 |
|
LUTAB modconttab = LU_SINIT(NULL,mcfree); /* modifier lookup table */ |
| 72 |
|
|
| 73 |
– |
static OBJECT traset[MAXTSET+1]={0}; /* trace include set */ |
| 74 |
– |
|
| 73 |
|
/************************** INITIALIZATION ROUTINES ***********************/ |
| 74 |
|
|
| 77 |
– |
void |
| 78 |
– |
tranotify( /* record new modifier */ |
| 79 |
– |
OBJECT obj |
| 80 |
– |
) |
| 81 |
– |
{ |
| 82 |
– |
static int hitlimit = 0; |
| 83 |
– |
OBJREC *o = objptr(obj); |
| 84 |
– |
int i; |
| 85 |
– |
|
| 86 |
– |
if (obj == OVOID) { /* starting over */ |
| 87 |
– |
traset[0] = 0; |
| 88 |
– |
hitlimit = 0; |
| 89 |
– |
return; |
| 90 |
– |
} |
| 91 |
– |
if (hitlimit || !ismodifier(o->otype)) |
| 92 |
– |
return; |
| 93 |
– |
for (i = nmods; i-- > 0; ) |
| 94 |
– |
if (!strcmp(o->oname, modname[i])) { |
| 95 |
– |
if (traset[0] >= MAXTSET) { |
| 96 |
– |
error(WARNING, "too many same-named modifiers"); |
| 97 |
– |
hitlimit++; |
| 98 |
– |
return; /* should this be fatal? */ |
| 99 |
– |
} |
| 100 |
– |
insertelem(traset, obj); |
| 101 |
– |
break; |
| 102 |
– |
} |
| 103 |
– |
} |
| 104 |
– |
|
| 105 |
– |
|
| 75 |
|
char * |
| 76 |
|
formstr( /* return format identifier */ |
| 77 |
|
int f |
| 223 |
|
int bn; |
| 224 |
|
RREAL contr[3]; |
| 225 |
|
|
| 226 |
< |
if (r->ro == NULL || !inset(traset, r->ro->omod)) |
| 226 |
> |
if (r->ro == NULL || r->ro->omod == OVOID) |
| 227 |
|
return; |
| 228 |
|
|
| 229 |
|
mp = (MODCONT *)lu_find(&modconttab,objptr(r->ro->omod)->oname)->data; |
| 230 |
|
|
| 231 |
< |
if (mp == NULL) |
| 232 |
< |
error(CONSISTENCY, "unexpected modifier in trace_contrib()"); |
| 231 |
> |
if (mp == NULL) /* not in our list? */ |
| 232 |
> |
return; |
| 233 |
|
|
| 234 |
|
worldfunc(RCCONTEXT, r); /* get bin number */ |
| 235 |
|
bn = (int)(evalue(mp->binv) + .5); |
| 244 |
|
} |
| 245 |
|
|
| 246 |
|
|
| 247 |
+ |
/* Evaluate irradiance contributions */ |
| 248 |
|
static void |
| 249 |
< |
rayirrad( /* compute irradiance rather than radiance */ |
| 280 |
< |
RAY *r |
| 281 |
< |
) |
| 249 |
> |
eval_irrad(FVECT org, FVECT dir) |
| 250 |
|
{ |
| 251 |
< |
r->rot = 1e-5; /* pretend we hit surface */ |
| 252 |
< |
VSUM(r->rop, r->rorg, r->rdir, r->rot); |
| 253 |
< |
r->ron[0] = -r->rdir[0]; |
| 254 |
< |
r->ron[1] = -r->rdir[1]; |
| 255 |
< |
r->ron[2] = -r->rdir[2]; |
| 256 |
< |
r->rod = 1.0; |
| 257 |
< |
/* compute result */ |
| 258 |
< |
r->revf = raytrace; |
| 259 |
< |
(*ofun[Lamb.otype].funp)(&Lamb, r); |
| 260 |
< |
r->revf = rayirrad; |
| 251 |
> |
RAY thisray; |
| 252 |
> |
|
| 253 |
> |
VSUM(thisray.rorg, org, dir, 1.1e-4); |
| 254 |
> |
thisray.rdir[0] = -dir[0]; |
| 255 |
> |
thisray.rdir[1] = -dir[1]; |
| 256 |
> |
thisray.rdir[2] = -dir[2]; |
| 257 |
> |
thisray.rmax = 0.0; |
| 258 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
| 259 |
> |
thisray.rot = 1e-5; /* pretend we hit surface */ |
| 260 |
> |
thisray.rod = 1.0; |
| 261 |
> |
VSUM(thisray.rop, org, dir, 1e-4); |
| 262 |
> |
samplendx++; /* compute result */ |
| 263 |
> |
(*ofun[Lamb.otype].funp)(&Lamb, &thisray); |
| 264 |
|
} |
| 265 |
|
|
| 266 |
|
|
| 267 |
< |
/* Evaluate ray contributions */ |
| 267 |
> |
/* Evaluate radiance contributions */ |
| 268 |
|
static void |
| 269 |
< |
eval_ray(FVECT org, FVECT dir, double dmax) |
| 269 |
> |
eval_rad(FVECT org, FVECT dir, double dmax) |
| 270 |
|
{ |
| 271 |
|
RAY thisray; |
| 272 |
|
/* set up ray */ |
| 273 |
+ |
VCOPY(thisray.rorg, org); |
| 274 |
+ |
VCOPY(thisray.rdir, dir); |
| 275 |
+ |
thisray.rmax = dmax; |
| 276 |
|
rayorigin(&thisray, PRIMARY, NULL, NULL); |
| 303 |
– |
if (imm_irrad) { |
| 304 |
– |
VSUM(thisray.rorg, org, dir, 1.1e-4); |
| 305 |
– |
thisray.rdir[0] = -dir[0]; |
| 306 |
– |
thisray.rdir[1] = -dir[1]; |
| 307 |
– |
thisray.rdir[2] = -dir[2]; |
| 308 |
– |
thisray.rmax = 0.0; |
| 309 |
– |
thisray.revf = rayirrad; |
| 310 |
– |
} else { |
| 311 |
– |
VCOPY(thisray.rorg, org); |
| 312 |
– |
VCOPY(thisray.rdir, dir); |
| 313 |
– |
thisray.rmax = dmax; |
| 314 |
– |
} |
| 277 |
|
samplendx++; /* call ray evaluation */ |
| 278 |
|
rayvalue(&thisray); |
| 279 |
|
} |
| 328 |
|
if ((yres <= 0) | (xres <= 0)) |
| 329 |
|
waitflush = 1; /* flush right after */ |
| 330 |
|
account = 1; |
| 331 |
< |
} else { /* else compute */ |
| 332 |
< |
eval_ray(orig, direc, lim_dist ? d : 0.0); |
| 331 |
> |
} else if (imm_irrad) { /* else compute */ |
| 332 |
> |
eval_irrad(orig, direc); |
| 333 |
> |
} else { |
| 334 |
> |
eval_rad(orig, direc, lim_dist ? d : 0.0); |
| 335 |
|
} |
| 336 |
|
done_contrib(); /* accumulate/output */ |
| 337 |
|
++lastdone; |
