571 |
|
.TP |
572 |
|
.BI -lr \ N |
573 |
|
Limit reflections to a maximum of |
574 |
< |
.I N. |
574 |
> |
.I N, |
575 |
> |
if N is a positive integer. |
576 |
|
If |
577 |
|
.I N |
578 |
|
is zero, then Russian roulette is used for ray |
580 |
|
.I -lw |
581 |
|
setting (below) must be positive. |
582 |
|
If N is a negative integer, then this sets the upper limit |
583 |
< |
of reflections past which Russian roulette will not be used. |
583 |
> |
of reflections past which Russian roulette will be used. |
584 |
|
In scenes with dielectrics and total internal reflection, |
585 |
|
a setting of 0 (no limit) may cause a stack overflow. |
586 |
|
.TP |