53 |
|
OBJREC *m; |
54 |
|
register RAY *r; |
55 |
|
{ |
56 |
– |
double sqrt(), pow(); |
56 |
|
double cos1, cos2, nratio; |
57 |
|
COLOR mcolor; |
58 |
|
double mabsorp; |
65 |
|
if (m->oargs.nfargs != (m->otype==MAT_DIELECTRIC ? 5 : 8)) |
66 |
|
objerror(m, USER, "bad arguments"); |
67 |
|
|
68 |
+ |
r->rt = r->rot; /* just use ray length */ |
69 |
+ |
|
70 |
|
raytexture(r, m->omod); /* get modifiers */ |
71 |
|
|
72 |
|
cos1 = raynormal(dnorm, r); /* cosine of theta1 */ |
93 |
|
else |
94 |
|
setcolor(mcolor, 1.0, 1.0, 1.0); |
95 |
|
} |
96 |
< |
mabsorp = intens(mcolor); |
96 |
> |
mabsorp = bright(mcolor); |
97 |
|
|
98 |
|
d2 = 1.0 - nratio*nratio*(1.0 - cos1*cos1); /* compute cos theta2 */ |
99 |
|
|
128 |
|
if (m->otype != MAT_DIELECTRIC |
129 |
|
|| r->rod > 0.0 |
130 |
|
|| r->crtype & SHADOW |
131 |
+ |
|| directinvis |
132 |
|
|| m->oargs.farg[4] == 0.0 |
133 |
|
|| !disperse(m, r, p.rdir, trans)) |
134 |
|
#endif |
167 |
|
FVECT vt; |
168 |
|
double tr; |
169 |
|
{ |
168 |
– |
double sqrt(); |
170 |
|
RAY sray, *entray; |
171 |
|
FVECT v1, v2, n1, n2; |
172 |
|
FVECT dv, v2Xdv; |
173 |
|
double v2Xdvv2Xdv; |
174 |
< |
int sn, success = 0; |
175 |
< |
double omega; |
174 |
> |
int success = 0; |
175 |
> |
SRCINDEX si; |
176 |
|
FVECT vtmp1, vtmp2; |
177 |
|
double dtmp1, dtmp2; |
178 |
|
int l1, l2; |
234 |
|
v2Xdvv2Xdv = DOT(v2Xdv, v2Xdv); |
235 |
|
|
236 |
|
/* check sources */ |
237 |
< |
for (sn = 0; sn < nsources; sn++) { |
237 |
> |
initsrcindex(&si); |
238 |
> |
while (srcray(&sray, r, &si)) { |
239 |
|
|
240 |
< |
if ((omega = srcray(&sray, r, sn)) == 0.0 || |
239 |
< |
DOT(sray.rdir, v2) < MINCOS) |
240 |
> |
if (DOT(sray.rdir, v2) < MINCOS) |
241 |
|
continue; /* bad source */ |
241 |
– |
|
242 |
|
/* adjust source ray */ |
243 |
|
|
244 |
|
dtmp1 = DOT(v2Xdv, sray.rdir) / v2Xdvv2Xdv; |
253 |
|
/* trace source ray */ |
254 |
|
normalize(sray.rdir); |
255 |
|
rayvalue(&sray); |
256 |
< |
if (intens(sray.rcol) <= FTINY) /* missed it */ |
256 |
> |
if (bright(sray.rcol) <= FTINY) /* missed it */ |
257 |
|
continue; |
258 |
|
|
259 |
|
/* |
263 |
|
*/ |
264 |
|
|
265 |
|
fcross(vtmp1, v2Xdv, sray.rdir); |
266 |
< |
dtmp1 = sqrt(omega / v2Xdvv2Xdv / PI); |
266 |
> |
dtmp1 = sqrt(si.dom / v2Xdvv2Xdv / PI); |
267 |
|
|
268 |
|
/* compute first ray */ |
269 |
|
for (i = 0; i < 3; i++) |