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; |