| 129 |
|
register RAY *r; |
| 130 |
|
{ |
| 131 |
|
NORMDAT nd; |
| 132 |
– |
double ldot; |
| 133 |
– |
double omega; |
| 132 |
|
double dtmp; |
| 133 |
|
COLOR ctmp; |
| 134 |
|
register int i; |
| 154 |
|
raytexture(r, m->omod); |
| 155 |
|
nd.pdot = raynormal(nd.pnorm, r); /* perturb normal */ |
| 156 |
|
multcolor(nd.mcolor, r->pcol); /* modify material color */ |
| 157 |
+ |
r->rt = r->rot; /* default ray length */ |
| 158 |
|
/* get specular component */ |
| 159 |
|
nd.rspec = m->oargs.farg[3]; |
| 160 |
|
|
| 195 |
|
if (nd.tspec > FTINY && nd.alpha2 <= FTINY) { |
| 196 |
|
RAY lr; |
| 197 |
|
if (rayorigin(&lr, r, TRANS, nd.tspec) == 0) { |
| 198 |
< |
VCOPY(lr.rdir, r->rdir); |
| 198 |
> |
for (i = 0; i < 3; i++) /* perturb direction */ |
| 199 |
> |
lr.rdir[i] = r->rdir[i] - .75*r->pert[i]; |
| 200 |
> |
normalize(lr.rdir); |
| 201 |
|
rayvalue(&lr); |
| 202 |
|
scalecolor(lr.rcol, nd.tspec); |
| 203 |
+ |
multcolor(lr.rcol, nd.mcolor); /* modified by color */ |
| 204 |
|
addcolor(r->rcol, lr.rcol); |
| 205 |
+ |
if (nd.tspec > .5) |
| 206 |
+ |
r->rt = r->rot + lr.rt; |
| 207 |
|
} |
| 208 |
|
} |
| 209 |
|
if (r->crtype & SHADOW) /* the rest is shadow */ |
