| 244 |
|
} |
| 245 |
|
|
| 246 |
|
|
| 247 |
+ |
/* Evaluate irradiance contributions */ |
| 248 |
|
static void |
| 249 |
< |
rayirrad( /* compute irradiance rather than radiance */ |
| 249 |
< |
RAY *r |
| 250 |
< |
) |
| 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); |
| 272 |
– |
if (imm_irrad) { |
| 273 |
– |
VSUM(thisray.rorg, org, dir, 1.1e-4); |
| 274 |
– |
thisray.rdir[0] = -dir[0]; |
| 275 |
– |
thisray.rdir[1] = -dir[1]; |
| 276 |
– |
thisray.rdir[2] = -dir[2]; |
| 277 |
– |
thisray.rmax = 0.0; |
| 278 |
– |
thisray.revf = rayirrad; |
| 279 |
– |
} else { |
| 280 |
– |
VCOPY(thisray.rorg, org); |
| 281 |
– |
VCOPY(thisray.rdir, dir); |
| 282 |
– |
thisray.rmax = dmax; |
| 283 |
– |
} |
| 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; |
