@Override
    public Object jmeClone() {
        try {
            return super.clone();
        } catch (final CloneNotSupportedException e) {
            throw new RuntimeException(e);
        }
    }
Set the shape of the water area (Circular (default) or Square).
if the shape is square the radius is considered as an extent.
@param shapeType the shape type
jme3-effects/src/main/java/com/jme3/water/WaterFilter.java