Hi Scorpion! and JulzMighty!
Thank for your help!
@ Scorpion: I have found the last release of aum! 61! and there is that what I looked for, I have experimented with all the 4 systems, but one don't look as if it works to me and that is trace_booster, it seems me that the objects must locate behind a wmb block to make it works, and then this could be used, but only in some cases, the good second could be dist_booster, good from use for vines, trees, stones, grass. however the trace_booster would be that that I likes more, but like told the objekt must locate behind to a wmb "wall" otherwise don't work, or I have made a mistake anything.
@ JulzMighty: The level terrain is fairly big, but like told already there are few objects in the level, 4 house a pair of trees and a lake that use a shader in fact and when I turn around toward the lake that the engine is blocked for more of 5 or 6 seconds, I have tried to eliminate the lake temporarily for testing, but it is blocked the same, in that direction there is few trees and any stone and the river, I however send you the screenshot, and as you could see.But I must also tell to that this appears only the first time that the player rotate (look) in the direction of the lake,and each game start.



here the images:

from here:





to here:



Behind the wall in the middle of the second shoot, there are the lake, the few trees, and the river.


greets.

salva