Thanks again everybody, thank you RJferret and nbohr1more for the bug tracker. I consider the distorsion thing a proper bug so it should be fixed, sooner or later. Here some suggestions for the whole water aspect: -Using nice animated textures could be the way trough lightness (just that: no rippling and other stuff) http://www.youtube.com/watch?v=GOn3Xw_gJD0 -Using also under water caustics as in jsHexen or in Cube2 engine -Using a really low res reflection, may be scalable from config file, as Arcturus said OR (dont know if is possible) reflect just main light sources. I'm not involved in game design in any way, neither in programming, these are just my suggestions.