private void Render()
        {
            App.Model.SecondCanvasImage = Adjust.GetDisplacementMap(App.Model.SecondSourceRenderTarget, turbulence, App.Setting.GlassAmount);

            App.Model.isReRender = true; //重新渲染
            App.Model.Refresh++;         //画布刷新
        }
        public static void Render()
        {
            if (App.Setting.PinchPunchRadius < 0)
            {
                App.Setting.PinchPunchRadius = 1;
            }
            else if (App.Setting.PinchPunchRadius > 1000)
            {
                App.Setting.PinchPunchRadius = 1000;
            }

            //偏移
            float     W = (float)App.Model.PunchDisplacement.Size.Width;
            float     H = (float)App.Model.PunchDisplacement.Size.Height;
            Matrix3x2 m = Matrix3x2.CreateTranslation(-W / 2, -H / 2)
                          * Matrix3x2.CreateScale(App.Setting.PinchPunchRadius / W * 2, App.Setting.PinchPunchRadius / H * 2)
                          * Matrix3x2.CreateTranslation(App.Model.Width / 2, App.Model.Height / 2);

            //判断
            if (App.Setting.PinchPunchAmount > 0)
            {
                DisScale = new Transform2DEffect {
                    Source = App.Model.PunchDisplacement, TransformMatrix = m,
                }
            }
            ;
            else
            {
                DisScale = new Transform2DEffect {
                    Source = App.Model.PinchDisplacement, TransformMatrix = m,
                }
            };

            //绘画
            using (var ds = DisTarget.CreateDrawingSession())
            {
                ds.Clear(App.Setting.LiquifyColor);
                ds.DrawImage(DisScale);
            }

            //置换贴图
            App.Model.SecondCanvasImage = Adjust.GetDisplacementMap(App.Model.SecondSourceRenderTarget, DisTarget, Math.Abs(App.Setting.PinchPunchAmount));

            App.Model.isReRender = true; //重新渲染
            App.Model.Refresh++;         //画布刷新
        }
    }