43 |
|
/* check for substitute material */ |
44 |
|
if (m->oargs.nsargs > 0 && |
45 |
|
(r->rsrc < 0 || source[r->rsrc].so != r->ro)) { |
46 |
< |
rayshade(r, modifier(m->oargs.sarg[0])); |
47 |
< |
return; |
46 |
> |
if (!strcmp(m->oargs.sarg[0], VOIDID)) { |
47 |
> |
raytrans(r); |
48 |
> |
return(1); |
49 |
> |
} |
50 |
> |
return(rayshade(r, modifier(m->oargs.sarg[0]))); |
51 |
|
} |
52 |
|
/* check for bad source ray */ |
53 |
|
if (r->rsrc >= 0 && source[r->rsrc].so != r->ro) |
54 |
< |
return; |
54 |
> |
return(1); |
55 |
|
|
56 |
|
if (r->rod < 0.) /* back is black */ |
57 |
< |
return; |
57 |
> |
return(1); |
58 |
|
/* get modifiers */ |
59 |
|
raytexture(r, m->omod); |
60 |
|
/* assign material color */ |
75 |
|
double pdot; |
76 |
|
|
77 |
|
if (rayorigin(&nr, r, REFLECTED, bright(mcolor)) < 0) |
78 |
< |
return; |
78 |
> |
return(1); |
79 |
|
pdot = raynormal(pnorm, r); /* use textures */ |
80 |
|
for (i = 0; i < 3; i++) |
81 |
|
nr.rdir[i] = r->rdir[i] + 2.*pdot*pnorm[i]; |
82 |
+ |
/* check for penetration */ |
83 |
+ |
if (DOT(nr.rdir, r->ron) <= FTINY) |
84 |
+ |
for (i = 0; i < 3; i++) |
85 |
+ |
nr.rdir[i] = r->rdir[i] + 2.*r->rod*r->ron[i]; |
86 |
|
} |
87 |
|
rayvalue(&nr); |
88 |
|
multcolor(nr.rcol, mcolor); |
89 |
|
addcolor(r->rcol, nr.rcol); |
90 |
+ |
return(1); |
91 |
|
} |
92 |
|
|
93 |
|
|