public void setColorExtinction(Vector3f colorExtinction) {
        this.colorExtinction = colorExtinction;
        if (material != null) {
            material.setVector3("ColorExtinction", colorExtinction);
        }
    }
Return at what depth the refraction color extinct
the first value is for red
the second is for green
the third is for blue
Play with those parameters to "trouble" the water
default is (5.0, 20.0, 30.0f);

@param colorExtinction the desired depth for each color component (alias
created, default=(5,20,30))
jme3-effects/src/main/java/com/jme3/water/WaterFilter.java