Vision penalties per yard?

[raniE]

Originally Posted by munin

It's the vision modifier of the obscurement, not the vision modifier due to range:

"Rain, fog, smoke, snow, and similar weather or atmospheric conditions interfere with all high-energy lasers, adding extra DR to the target equal to the vision penalty (per yard). Thus, if a yard of smoke would be -10 to vision, then each yard gives DR 10; if every 100 yards of haze gives -1 to vision, then 1,000 yards provides DR 10." (p. UT114)

So: haze (-1/yard), smoke (-10/yard).

I'd just break it into three categories and call it a day: light obscurement (1 DR/yard), moderate obscurement (3-5 DR/yard), heavy obscurement (10 DR/yard).

Wait what? These numbers do not add up.