True Seeing, two questions

[Shin Okada]

From SRD "True Seeing"

You confer on the subject the ability to see all things as they actually are. The subject sees through normal and magical darkness, notices secret doors hidden by magic, sees the exact locations of creatures or objects under blur or displacement effects, sees invisible creatures or objects normally, sees through illusions, and sees the true form of polymorphed, changed, or transmuted things. Further, the subject can focus its vision to see into the Ethereal Plane (but not into extradimensional spaces). The range of true seeing conferred is 120 feet.
True seeing, however, does not penetrate solid objects. It in no way confers X-ray vision or its equivalent. It does not negate concealment, including that caused by fog and the like. True seeing does not help the viewer see through mundane disguises, spot creatures who are simply hiding, or notice secret doors hidden by mundane means. In addition, the spell effects cannot be further enhanced with known magic, so one cannot use true seeing through a crystal ball or in conjunction with clairaudience/clairvoyance.

Emphasis added by me.

Q1) "fog and the like"

Should "fog and the like" include fogs created by spells or magical abilities, such as solid fog or stinking cloud? or not?

Q2) Hide in plain sight

Now, some classes and creatures have "Hide in Plain Sight" ability. How should True Seeing interact with such opponents? Some of them have it as Ex (Ranger, Scout, etc.) Others have it as Su (Assassin, Shadowdancer, some monsters, etc.).

 

[Greenfield]

Fog or smoke, whether magically summoned or naturally occurring, offer concealment. Concealment isn't bypassed by True Seeing.

Hide in Plain Sight, on the other hand, is just about the only form of Hiding that doesn't require some sort of concealment. And it is a Supernatural ability, so True Seeing should see through it.

 

[delericho]

Yep, what he said.

 

[The Crimson Binome]

Hide in Plain Sight, on the other hand, is just about the only form of Hiding that doesn't require some sort of concealment. And it is a Supernatural ability, so True Seeing should see through it.

It's a Supernatural ability when the Assassin does it, because they're bending shadows or something. When the Ranger has it, it's an Extraordinary ability.

 

[Greenfield]

Good point. But whether it's technically magical in nature or not, because it's the ability to take advantage of cover without having to be behind it, it explicitly does not involve actual concealment.

So while I suppose the Ranger version might be subject to some argument, I still think that True Seeing should penetrate it. Ultimately it's a DM call.