WPF Hardware Acceleration Samples

<Window x:Class="WpfHwAccel.SpinCube"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="SpinCube" Height="300" Width="300">
    <Viewport3D Name="viewport">
        <Viewport3D.Camera>
            <PerspectiveCamera Position="0,0,3" LookDirection="0,0,-3" UpDirection="0,1,0" FieldOfView="60"/>
        </Viewport3D.Camera>
        <ModelVisual3D>
            <ModelVisual3D.Content>
                <Model3DGroup>
                    <AmbientLight Color="White"/>
                    <GeometryModel3D>
                        <GeometryModel3D.Geometry>
                            <MeshGeometry3D Positions="-1,-1,-1 1,-1,-1 1,1,-1 -1,1,-1 -1,-1,1 1,-1,1 1,1,1 -1,1,1"
                                            TriangleIndices="0 1 2 0 2 3 4 6 5 4 7 6 0 4 5 0 5 1 2 6 7 2 7 3 0 3 7 0 7 4 1 5 6 1 6 2"/>
                        </GeometryModel3D.Geometry>
                        <GeometryModel3D.Material>
                            <DiffuseMaterial Brush="LightBlue"/>
                        </GeometryModel3D.Material>
                    </GeometryModel3D>
                </Model3DGroup>
            </ModelVisual3D.Content>
        </ModelVisual3D>
        <ModelVisual3D>
            <ModelVisual3D.Transform>
                <RotateTransform3D x:Name="rt">
                    <RotateTransform3D.Rotation>
                        <AxisAngleRotation3D Axis="0,1,0" Angle="0"/>
                    </RotateTransform3D.Rotation>
                </RotateTransform3D>
            </ModelVisual3D.Transform>
        </ModelVisual3D>
    </Viewport3D>
    <Window.Triggers>
        <EventTrigger RoutedEvent="Window.Loaded">
            <BeginStoryboard>
                <Storyboard>
                    <DoubleAnimation Storyboard.TargetName="rt"
                                     Storyboard.TargetProperty="Rotation.Angle"
                                     From="0" To="360" Duration="0:0:5"
                                     RepeatBehavior="Forever"/>
                </Storyboard>
            </BeginStoryboard>
        </EventTrigger>
    </Window.Triggers>
</Window>

using System;
using System.Windows;
using System.Windows.Interop;
using System.Runtime.InteropServices;

public class D3DImageControl : D3DImage
{
    [DllImport("d3d9.dll")]
    private static extern int Direct3DCreate9(uint sdkVersion);

    private IntPtr _surface;

    public D3DImageControl()
    {
        // Create a Direct3D surface (mocked for illustration)
        _surface = CreateMockSurface();
        Lock();
        SetBackBuffer(D3DResourceType.IDirect3DSurface9, _surface);
        Unlock();
    }

    private IntPtr CreateMockSurface()
    {
        // In a real sample this would call Direct3D APIs.
        return new IntPtr(0xDEADBEEF);
    }

    public void Update()
    {
        Lock();
        AddDirtyRect(new Int32Rect(0,0,PixelWidth,PixelHeight));
        Unlock();
    }
}

<Window x:Class="WpfHwAccel.RenderDemo"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="RenderDemo" Height="350" Width="400">
    <StackPanel Margin="10">
        <Button Content="Render to Bitmap" Click="OnRenderClick" Width="150"/>
        <Image x:Name="ResultImage" Margin="10"/>
    </StackPanel>
</Window>

using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Imaging;

public partial class RenderDemo : Window
{
    public RenderDemo()
    {
        InitializeComponent();
    }

    private void OnRenderClick(object sender, RoutedEventArgs e)
    {
        var visual = new DrawingVisual();
        using (var dc = visual.RenderOpen())
        {
            dc.DrawRectangle(Brushes.LightGreen, null, new Rect(0,0,200,200));
            dc.DrawEllipse(Brushes.DarkBlue, null, new Point(100,100), 80, 80);
        }

        var bmp = new RenderTargetBitmap(200,200,96,96,PixelFormats.Pbgra32);
        bmp.Render(visual);
        ResultImage.Source = bmp;
    }
}