1. To make any texture within a wad adopt turbulance, rename it simply by putting an asterisk in front of it, eg: *water or *lava or *acid etc. etc...

2. To make an animated texture within a wad, import a series of bitmaps with the names like this: +01tex, +02tex, +03tex, etc... This will make a single texture in the wad animate.

3. To make turbulant skies, simply make a 256 x 128 bitmap, one half contains 0,0,0 black with some particles drawn in and the other side make it the sky colour with a few more particles drawn in, then just name it: sky_01.

I hope this helps.