Illusions and special sense types.

[Wiseman]

Illusions and blindsense. Does it fool it?

[OgreBattle]

If you can't touch it, no effect. If it's a solid illusion though, then blindsense would be affected. But Ghost Sound will mess with them more, right? Shadowrun laid it out pretty clearly as they had to deal with 'electronic senses'.

I'm correlating blindsense with 'tremorsense' (is that its own distinct thing?) though. Something with echo-location will probably be more affected by sonic illusions.

[Grek]

Blindsight is the power to 'see' things without the use of actual vision. The description says that this can be due to "sensitivity to vibrations, acute scent, keen hearing, or echolocation". Blindsense is a lesser version of Blindsight where things you can't detect with your normal vision still have concealment, but you can otherwise 'see' them.

Illusions work on things with blindsight iff the illusion is also mimicking the sense that the creature uses for blindsight.

[Wiseman]

Ah. Thanks.

[Voss]

I'm correlating blindsense with 'tremorsense' (is that its own distinct thing?) .

Yes it is. Blindsense is more general. Tremorsense requires contact with the ground (on the part of both the perceiver and the vibration maker).

[K]

Remember that not being able to detect an illusion with one sense does not automatically let you disbelieve it. At best, you get a +4 to the Will save.

[CatharzGodfoot]

Totally depends on the kind of illusion.