PixelShader Class
Provides a managed wrapper around a High Level Shading Language (HLSL) pixel shader.
Namespace: System.Windows.Media.Effects
Assembly: System.Windows (in System.Windows.dll)
The PixelShader type exposes the following members.
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Dispatcher | Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.) |
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UriSource | Gets or sets a URI reference to HLSL bytecode in the assembly. |
| Name | Description | |
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CheckAccess | Determines whether the calling thread has access to this object. (Inherited from DependencyObject.) |
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ClearValue | Clears the local value of a dependency property. (Inherited from DependencyObject.) |
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Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
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Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
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GetAnimationBaseValue | Returns any base value established for a Silverlight dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.) |
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GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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GetValue | Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.) |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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ReadLocalValue | Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.) |
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SetValue | Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.) |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
Use the PixelShader class to access precompiled HLSL bytecode in a Silverlight application.
Set the UriSource property to load the shader bytecode.
To create a custom effect, assign the PixelShader to the PixelShader property of a ShaderEffect.
The following example shows an image with and without a shader effect applied to it.
This "invert colors" effect is a custom shader effect. To create your own effect, do the following:
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Create a shader using High Level Shader Language (HLSL), part of the DirectX SDK, and compile into a .ps file. To compile .ps files, you can directly use the fxc command line tool provided with the DirectX SDK or another tool like Shazzam which gives you a convenient UI for working with the fxc command line tool.
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Derive your custom effect from the ShaderEffect class and set the PixelShader property of your custom shader effect to your .ps file.
using System.Windows; using System.Windows.Media; using System.Windows.Media.Effects; using System; namespace PixelShaderSample { public class MyPixelInvertedEffect : ShaderEffect { public MyPixelInvertedEffect() { // Include your project name and .ps file. Uri u = new Uri(@"/PixelShaderSample;component/InvertColors.ps", UriKind.Relative); // Set the PixelShader of the custom shader effect to use your custom .ps file. PixelShader myPixelShader = new PixelShader(); myPixelShader.UriSource = u; this.PixelShader = myPixelShader; } } }
3. Apply the custom shader effect to your object (in this case an Image).
<UserControl x:Class="PixelShaderSample.MainPage"
xmlns:shader="clr-namespace:PixelShaderSample"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="400" Height="300">
<StackPanel Orientation="Horizontal">
<!-- Image without PixelShader effect on the left and image with
custom shader on the right. -->
<Image Height="200" Width="200" Source="tree_blossoms.jpg" Stretch="Fill"/>
<Image Height="200" Width="200" Source="tree_blossoms.jpg" Stretch="Fill">
<Image.Effect>
<shader:MyPixelInvertedEffect />
</Image.Effect>
</Image>
</StackPanel>
</UserControl>
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
