262 |
|
} |
263 |
|
} else |
264 |
|
nd.tdiff = nd.tspec = nd.trans = 0.0; |
265 |
+ |
/* diffuse reflection */ |
266 |
+ |
nd.rdiff = 1.0 - nd.trans - nd.rspec; |
267 |
|
/* transmitted ray */ |
266 |
– |
|
268 |
|
if ((nd.specfl&(SP_TRAN|SP_PURE|SP_TBLT)) == (SP_TRAN|SP_PURE)) { |
269 |
|
RAY lr; |
270 |
|
copycolor(lr.rcoef, nd.mcolor); /* modified by color */ |
280 |
|
copycolor(r->mcol, lr.mcol); |
281 |
|
r->rmt = r->rot + lr.rmt; |
282 |
|
r->rxt = r->rot + lr.rxt; |
283 |
< |
} else |
283 |
> |
} else if (nd.tspec > nd.tdiff + nd.rdiff) |
284 |
|
r->rxt = r->rot + raydistance(&lr); |
285 |
|
} |
286 |
|
} |
326 |
|
r->rmt = r->rot + raydistance(&lr); |
327 |
|
} |
328 |
|
} |
328 |
– |
/* diffuse reflection */ |
329 |
– |
nd.rdiff = 1.0 - nd.trans - nd.rspec; |
329 |
|
|
330 |
|
if (nd.specfl & SP_PURE && nd.rdiff <= FTINY && nd.tdiff <= FTINY) |
331 |
|
return(1); /* 100% pure specular */ |