To: Dveyee
http://solidfiles.com/d/742ab/
- that's the compiled version of project, with sources of everything included. (~3mb)
As bart_the_13th have stated, commercial edition seems to be required to use turbulence (this is not less than strange).

_passable problem still remains. As I have noticed, in_passable is always zero, even while going through the passable entities (blocks). In addition, invisible blocks seem to be either threated as passable, or are simply not included into level.

In the level there are 4 'pools' with water, 3 of which are passable and have different material, and 4th is passable & invisible. When testing, all but invisible one are solid.

Since, as I understood, that chances to use turbulence in free edition are rather low, I've tried using animated texture. And, guess what, it didnt work neither.

In the demo you may see 4 blocks with 10-frame animated texture assigned:

From left to right: blank material, mtl_uvspeed, mtl_default (interesting effect, huh?), and mtl_wireframe. Unfortunately, texture is not animated on any of them.
If this will somehow work, I am interested if its possible to assign texture animation that is longer than 10 frames.

Other things included in level are:
- 3 water pillars, passable, passable+invisible, invisible. Unlike expected, only invisible pillars are passable
- Attempt to shift u,v on map entity. Manual did not state what will happen if you do this, so I tried. This same entity has NOFILTER set (as I have stated, this does not work).
- 'infinite corridor', the only thing that works as expected so far, and one that this project was going to be based on.

To: RealSerious3D
To question 1, I meant this:

To question 5, thanks, that works perfectly.