Creating shadows/darker areas using models?

[MoCo]

Hey,

attached to this post is a light model. If I place it in a map as doodad, it creates a 3d point light, enlightening the map area around.

I was wondering if it is possible to inverse such kind of light models in order to create shadows. Like a black glow effect or something?
Or maybe there are other ways to add decent looking 3d shadows to a map?

 

[General Frank]

I think the only possible way how Warcraft renders shadows are in 'blobs'. Something like under units, especially flying ones.

 

[Heinvers]

As Frankster said.

Although you might wanna check this for a better looking shadow technique.
I do realize this is not quite the modeling way but still.

Click! Click! Click!