100 |
|
register int ac; |
101 |
|
register char **av; |
102 |
|
{ |
103 |
< |
fputs("\n#", stdout); /* use Radiance comment character */ |
103 |
> |
putchar('#'); /* use Radiance comment character */ |
104 |
|
while (--ac) { |
105 |
|
putchar(' '); |
106 |
|
fputs(*++av, stdout); |
426 |
|
} |
427 |
|
d = c_cmaterial->rd + c_cmaterial->td + |
428 |
|
c_cmaterial->rs + c_cmaterial->ts; |
429 |
< |
if (d <= 0. | d >= 1.) |
429 |
> |
if (d < 0. | d > 1.) |
430 |
|
return(NULL); |
431 |
|
/* check for trans */ |
432 |
|
if (c_cmaterial->td > .01 || c_cmaterial->ts > .01) { |
435 |
|
if (c_cmaterial->sided) { |
436 |
|
ts = sqrt(c_cmaterial->ts); /* approximate */ |
437 |
|
a5 = .5; |
438 |
< |
} else |
438 |
> |
} else { |
439 |
> |
ts = c_cmaterial->ts; |
440 |
|
a5 = 1.; |
441 |
+ |
} |
442 |
|
/* average colors */ |
443 |
|
d = c_cmaterial->rd + c_cmaterial->td + ts; |
444 |
|
cvtcolor(radrgb, &c_cmaterial->rd_c, c_cmaterial->rd/d); |
452 |
|
(c_cmaterial->rs + ts); |
453 |
|
a6 = (c_cmaterial->td + ts) / |
454 |
|
(c_cmaterial->rd + c_cmaterial->td + ts); |
455 |
< |
if (a6 < .999) { |
455 |
> |
if (a6 < .999) |
456 |
|
d = c_cmaterial->rd/(1. - c_cmaterial->rs)/(1. - a6); |
457 |
< |
scalecolor(radrgb, d); |
458 |
< |
} |
457 |
> |
else |
458 |
> |
d = c_cmaterial->td + ts; |
459 |
> |
scalecolor(radrgb, d); |
460 |
|
printf("\nvoid trans %s\n0\n0\n", mname); |
461 |
|
printf("7 %f %f %f\n", colval(radrgb,RED), |
462 |
|
colval(radrgb,GRN), colval(radrgb,BLU)); |
465 |
|
return(mname); |
466 |
|
} |
467 |
|
/* check for plastic */ |
468 |
< |
if (c_cmaterial->rs < .01 || c_isgrey(&c_cmaterial->rs_c)) { |
469 |
< |
if (c_cmaterial->rs > .999) |
470 |
< |
cvtcolor(radrgb, &c_cmaterial->rd_c, 1.); |
468 |
< |
else |
469 |
< |
cvtcolor(radrgb, &c_cmaterial->rd_c, |
468 |
> |
if (c_cmaterial->rs < .1 && (c_cmaterial->rs < .01 || |
469 |
> |
c_isgrey(&c_cmaterial->rs_c))) { |
470 |
> |
cvtcolor(radrgb, &c_cmaterial->rd_c, |
471 |
|
c_cmaterial->rd/(1.-c_cmaterial->rs)); |
472 |
|
printf("\nvoid plastic %s\n0\n0\n", mname); |
473 |
|
printf("5 %f %f %f %f %f\n", colval(radrgb,RED), |
476 |
|
return(mname); |
477 |
|
} |
478 |
|
/* else it's metal */ |
479 |
< |
d = c_cmaterial->rd + c_cmaterial->rs; /* average colors */ |
480 |
< |
cvtcolor(radrgb, &c_cmaterial->rd_c, c_cmaterial->rd/d); |
481 |
< |
cvtcolor(c2, &c_cmaterial->rs_c, c_cmaterial->rs/d); |
479 |
> |
/* average colors */ |
480 |
> |
cvtcolor(radrgb, &c_cmaterial->rd_c, c_cmaterial->rd); |
481 |
> |
cvtcolor(c2, &c_cmaterial->rs_c, c_cmaterial->rs); |
482 |
|
addcolor(radrgb, c2); |
482 |
– |
if (c_cmaterial->rs < .999) { |
483 |
– |
d = c_cmaterial->rd/(1. - c_cmaterial->rs); |
484 |
– |
scalecolor(radrgb, d); |
485 |
– |
} |
483 |
|
printf("\nvoid metal %s\n0\n0\n", mname); |
484 |
|
printf("5 %f %f %f %f %f\n", colval(radrgb,RED), |
485 |
|
colval(radrgb,GRN), colval(radrgb,BLU), |
486 |
< |
c_cmaterial->rs, c_cmaterial->rs_a); |
486 |
> |
c_cmaterial->rs/(c_cmaterial->rd + c_cmaterial->rs), |
487 |
> |
c_cmaterial->rs_a); |
488 |
|
return(mname); |
489 |
|
} |
490 |
|
|