public void LoadContent()
        {
            if (content == null)
            {
                content = new ContentManager(fluidSimulation1.Services, "Content");
            }

            GlassBox glassBox = new GlassBox();
            glassBox.LoadContent(content);

            Fluid = new Fluid(2000, glassBox);
            Fluid.ActiveParticles = 500;

            surfaceTensionSlider = new Slider("Surface Tension: ", 0, 100, Fluid.SurfaceTension, 2);
            surfaceTensionSlider.OnValueChanged += new EventHandler(surfaceTensionSlider_OnValueChanged);
            surfaceTensionSlider.Length = 200;

            viscositySlider = new Slider("Viscosity: ", 0, 100, Fluid.Viscosity, 2);
            viscositySlider.OnValueChanged += new EventHandler(viscositySlider_OnValueChanged);
            viscositySlider.Length = 200;

            massSlider = new Slider("Particle Mass: ", 1, 20, Fluid.ParticleMass, 2);
            massSlider.OnValueChanged += new EventHandler(massSlider_OnValueChanged);
            massSlider.Length = 200;

            particlesSlider = new Slider("Particles: ", 1, Fluid.MaxParticles, Fluid.ActiveParticles, 0);
            particlesSlider.OnValueChanged += new EventHandler(particlesSlider_OnValueChanged);
            particlesSlider.Length = 200;

            timestepSlider = new Slider("Timestep: ", 1, 5, 1, 2);
            timestepSlider.OnValueChanged += new EventHandler(timestepSlider_OnValueChanged);
            timestepSlider.Length = 200;

            rotationSpeedSlider = new Slider("Rotation speed: ", -0.025f, 0.025f, rotationSpeed, 3);
            rotationSpeedSlider.OnValueChanged += new EventHandler(rotationSpeedSlider_OnValueChanged);
            rotationSpeedSlider.Length = 200;

            guiElements = new StackPanel(40);
            guiElements.Add(surfaceTensionSlider);
            guiElements.Add(viscositySlider);
            guiElements.Add(massSlider);
            guiElements.Add(particlesSlider);
            guiElements.Add(timestepSlider);
            guiElements.Add(rotationSpeedSlider);

            restartButton = new Button("Restart", FluidSimulation1.Font);
            restartButton.OnClick += new EventHandler(restartButton_OnClick);
            guiElements.Add(restartButton);

            debugGrid = new DebugGrid(fluidSimulation1.GraphicsDevice);

            guiElements.Font = FluidSimulation1.Font;
            guiElements.LoadContent(content);

            fluidRenderer = new FluidRendererMarchingCubes(Fluid, fluidSimulation1.GraphicsDevice);

            marchingCubesEffect = new BasicEffect(fluidSimulation1.GraphicsDevice);
        }