Anaglyph ShaderEffect in WPF

<Window x:Class="AnaglyphWebcam.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:webcam="clr-namespace:CatenaLogic.Windows.Presentation.WebcamPlayer"
    xmlns:local="clr-namespace:AnaglyphWebcam"
    xmlns:me="clr-namespace:MyEffects"
    Title="Anaglyph webcam" Height="540" Width="656">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="24"/>
            <RowDefinition Height="24"/>
            <RowDefinition Height="480"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="100"/>
            <ColumnDefinition Width="540"/>
        </Grid.ColumnDefinitions>
        
        <!-- Select webcams -->
        <Label Grid.Row="0" Grid.Column="0" Content="Left cam:"/>
        <ComboBox Grid.Row="0" Grid.Column="1" x:Name="webcam1ComboBox" ItemsSource="{x:Static webcam:CapDevice.DeviceMonikers}"
                  DisplayMemberPath="Name" SelectedValuePath="MonikerString"
                  SelectedValue="{Binding RelativeSource={RelativeSource AncestorType={x:Type local:MainWindow}}, Path=SelectedWebcam1MonikerString}"
                  />

        <Label Grid.Row="1" Grid.Column="0" Content="Right cam:"/>
        <ComboBox Grid.Row="1" Grid.Column="1" x:Name="webcam2ComboBox" ItemsSource="{x:Static webcam:CapDevice.DeviceMonikers}"
                  DisplayMemberPath="Name" SelectedValuePath="MonikerString"
                  SelectedValue="{Binding RelativeSource={RelativeSource AncestorType={x:Type local:MainWindow}}, Path=SelectedWebcam2MonikerString}"
                  />
        
        <webcam:CapPlayer Grid.Row="2" Grid.ColumnSpan="2" x:Name="webcamPlayer1" Height="480" 
            Device="{Binding RelativeSource={RelativeSource AncestorType={x:Type local:MainWindow}}, Path=SelectedWebcam1}">
        </webcam:CapPlayer>
        <webcam:CapPlayer Grid.Row="2" Grid.ColumnSpan="2" x:Name="webcamPlayer2" Height="480" 
            Device="{Binding RelativeSource={RelativeSource AncestorType={x:Type local:MainWindow}}, Path=SelectedWebcam2}">
            <webcam:CapPlayer.Effect>
                <me:AnaglyphEffect x:Name="Effect1">
                    <me:AnaglyphEffect.LeftInput>
                        <VisualBrush Visual="{Binding ElementName=webcamPlayer1}"/>
                    </me:AnaglyphEffect.LeftInput>
                </me:AnaglyphEffect>
            </webcam:CapPlayer.Effect>
            <webcam:CapPlayer.LayoutTransform>
                <ScaleTransform ScaleX="1" ScaleY="-1"/>
            </webcam:CapPlayer.LayoutTransform>
        </webcam:CapPlayer>

    </Grid>
</Window>