| 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 |
