111 |
|
return(-1); /* upper reflection limit */ |
112 |
|
if (r->rweight >= minweight) |
113 |
|
return(0); |
114 |
< |
if (frandom() < r->rweight/minweight) |
114 |
> |
if (frandom() > r->rweight/minweight) |
115 |
|
return(-1); |
116 |
|
rw = minweight/r->rweight; /* promote survivor */ |
117 |
|
scalecolor(r->rcoef, rw); |
118 |
|
r->rweight = minweight; |
119 |
|
return(0); |
120 |
|
} |
121 |
< |
return(r->rlvl <= maxdepth && r->rweight >= minweight ? 0 : -1); |
121 |
> |
return(r->rlvl <= abs(maxdepth) && r->rweight >= minweight ? 0 : -1); |
122 |
|
} |
123 |
|
|
124 |
|
|
301 |
|
foremat = backmat = 0; |
302 |
|
/* foreground */ |
303 |
|
fr = *r; |
304 |
< |
if (coef > FTINY) |
304 |
> |
if (coef > FTINY) { |
305 |
> |
scalecolor(fr.rcoef, coef); |
306 |
|
foremat = rayshade(&fr, fore); |
307 |
+ |
} |
308 |
|
/* background */ |
309 |
|
br = *r; |
310 |
< |
if (coef < 1.0-FTINY) |
310 |
> |
if (coef < 1.0-FTINY) { |
311 |
> |
scalecolor(br.rcoef, 1.0-coef); |
312 |
|
backmat = rayshade(&br, back); |
313 |
+ |
} |
314 |
|
/* check for transparency */ |
315 |
|
if (backmat ^ foremat) { |
316 |
|
if (backmat && coef > FTINY) |