[fixed] Dynamic lights mess up see-thru 3D floors. Again.

[BetaSword]

Same thing as this thread: http://forum.drdteam.org/viewtopic.php?t=298

I guess the fixing the rendering the insides thing brought that fun one back again.

Edit: Ok... That's odd... It seems to work fine in some cases, but not in others... Here's an example of one of the "not" cases.

[Graf Zahl]

Fixed. Also disabled decals on 3D-floors with transparent textures because they just look odd.

[BetaSword]

Ah, I was going to comment on that, too, but didn't know if you would be able to do the same thing. Spiffy.