public void SliderChanged(bool value)
    {
        PatchedConicXfer conicXfer = (PatchedConicXfer)transfer;
        float            lambda    = lambdaSlider.value;

        lambdaValue.text = string.Format("{0:0.0}", lambdaSlider.value);
        transfer         = conicXfer.CreateTransferCopy(lambda);
        UpdateUI(transfer);
    }