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 */ |