How to use

setWaterTransparency

method

in

com.jme3.water.WaterFilter

water.setDeepWaterColor(ColorRGBA.Brown);
water.setWaterColor(ColorRGBA.Brown.mult(2.0f));
water.setWaterTransparency(0.2f);
water.setMaxAmplitude(0.3f);
water.setWaveScale(0.008f);

water2.setDeepWaterColor(ColorRGBA.Brown);
water2.setWaterColor(ColorRGBA.Brown.mult(2.0f));
water2.setWaterTransparency(0.2f);
water2.setMaxAmplitude(0.3f);
water2.setWaveScale(0.008f);

water.setDeepWaterColor(new ColorRGBA().setAsSrgb(0.0039f, 0.00196f, 0.145f, 1.0f));
water.setUnderWaterFogDistance(80);
water.setWaterTransparency(0.12f);
water.setFoamIntensity(0.4f);        
water.setFoamHardness(0.3f);

public Spatial draw(DrawableCombiner3d dc, Primitive3d primitive,
    SpaceObject sobj, ViewportJMonkey vp) {
  Vector3f lightDir = new Vector3f(1f, 1f, 1f);
  WaterFilter water = new WaterFilter(waterNode, lightDir);
  water.setWaterHeight(-0.2f);
  water.setUseFoam(false);
  water.setUseRipples(true);
  water.setDeepWaterColor(ColorRGBA.Black.mult(0.1f));
  water.setWaterColor(ColorRGBA.Black.mult(0.15f));
  water.setWaterTransparency(0.001f);
  water.setMaxAmplitude(0.3f);
  water.setWaveScale(0.008f);
  water.setSpeed(0.5f);
  water.setShoreHardness(1.0f);
  water.setRefractionConstant(0.2f);
  water.setShininess(0.3f);
  water.setSunScale(1.0f);
  water.setColorExtinction(new Vector3f(10.0f, 20.0f, 30.0f));
  
  waterNode.setUserData("water", water);
  
  return waterNode;
}