Mandelbrot Set with PixelShader in WPF

<Window x:Class="ShaderMandelbrot.JuliiWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:my="clr-namespace:ShaderMandelbrot"
        Title="ShaderJulii" Height="350" Width="350"
        WindowStartupLocation="Manual">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>

        <Grid Grid.Row="0" Grid.ColumnSpan="2" x:Name="MandelRoot" SizeChanged="MandelRoot_SizeChanged" Background="White" MouseMove="Grid_MouseMove" MouseDown="MandelRoot_MouseDown" MouseUp="MandelRoot_MouseUp">
            <Grid.Effect>
                <my:JuliiEffect x:Name="m" />
            </Grid.Effect>
        </Grid>
        
        <Grid x:Name="darker" HorizontalAlignment="Left" VerticalAlignment="Top" Background="#55000000" Visibility="Collapsed"
              MouseMove="Grid_MouseMove" MouseUp="MandelRoot_MouseUp"></Grid>

        <Grid x:Name="options" Grid.Row="1" Visibility="Collapsed">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto" />
                <ColumnDefinition Width="*" />
            </Grid.ColumnDefinitions>

            <TextBlock Grid.Row="0" Grid.ColumnSpan="2" Margin="2" Text="MiddleButton translate, LeftButton zoom in, RightButton zoom out." />

            <TextBlock Grid.Row="1" Grid.Column="0" Text="Seed (Real)" Margin="2" TextAlignment="Right" />
            <Slider x:Name="seedR" Grid.Row="1" Grid.Column="1" Minimum="-3" Maximum="3" Value="-1.25" ValueChanged="seedR_ValueChanged" />

            <TextBlock Grid.Row="2" Grid.Column="0" Text="Seed (Imaginary)" Margin="2" TextAlignment="Right" />
            <Slider x:Name="seedI" Grid.Row="2" Grid.Column="1" Minimum="-3" Maximum="3" Value="0" ValueChanged="seedI_ValueChanged" />

            <TextBlock Grid.Row="3" Grid.Column="0" Text="Maximal iteration" Margin="2" TextAlignment="Right" />
            <Slider x:Name="maxIter" Grid.Row="3" Grid.Column="1" Minimum="0" Maximum="100" Value="32" ValueChanged="maxIter_ValueChanged" />

            <TextBlock Grid.Row="4" Grid.Column="0" Text="Power (Real)" Margin="2" TextAlignment="Right" />
            <Slider x:Name="powerR" Grid.Row="4" Grid.Column="1" Minimum="0" Maximum="10" Value="2" ValueChanged="powerR_ValueChanged" />

            <TextBlock Grid.Row="5" Grid.Column="0" Text="Power (Imaginary)" Margin="2" TextAlignment="Right" />
            <Slider x:Name="powerI" Grid.Row="5" Grid.Column="1" Minimum="0" Maximum="10" Value="0" ValueChanged="powerI_ValueChanged" />

            <TextBlock Grid.Row="6" Grid.Column="0" Text="Bailout" Margin="2" TextAlignment="Right" />
            <Slider x:Name="bailout" Grid.Row="6" Grid.Column="1" Minimum="0" Maximum="100" Value="4" ValueChanged="bailout_ValueChanged" />

            <TextBlock Grid.Row="7" Grid.Column="0" Text="Other" Margin="2" TextAlignment="Right" />
            <StackPanel Grid.Row="7" Grid.Column="1" Orientation="Horizontal">
                <Button Click="Button_Click">Reset</Button>
            </StackPanel>
        </Grid>
    </Grid>
</Window>