ShadowMapRenderer Class

Renders the shadow maps of LightNodes.

Inheritance Hierarchy

SystemObject
  DigitalRune.Graphics.RenderingSceneNodeRenderer
    DigitalRune.Graphics.RenderingSceneRenderer
      DigitalRune.Graphics.RenderingShadowMapRenderer

Namespace: DigitalRune.Graphics.Rendering
Assembly: DigitalRune.Graphics (in DigitalRune.Graphics.dll) Version: 1.2.0.0 (1.2.1.14562)

Syntax

C++

Copy

public class ShadowMapRenderer : SceneRenderer, 
	IShadowMapRenderer

Public Class ShadowMapRenderer
	Inherits SceneRenderer
	Implements IShadowMapRenderer

public ref class ShadowMapRenderer : public SceneRenderer, 
	IShadowMapRenderer

type ShadowMapRenderer =  
    class
        inherit SceneRenderer
        interface IShadowMapRenderer
    end

The ShadowMapRenderer type exposes the following members.

Constructors

	Name	Description
	ShadowMapRenderer(FuncRenderContext, Boolean)	Initializes a new instance of the ShadowMapRenderer class using the specified render callback.
	ShadowMapRenderer(SceneNodeRenderer)	Initializes a new instance of the ShadowMapRenderer class using the specified scene node renderer.

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Methods

	Name	Description
	CanRender	Determines whether this renderer can handle the specified scene node. (Overrides SceneRendererCanRender(SceneNode, RenderContext).)
	Dispose	Releases all resources used by an instance of the SceneNodeRenderer class. (Inherited from SceneNodeRenderer.)
	Dispose(Boolean)	Releases the unmanaged resources used by an instance of the SceneNodeRenderer class and optionally releases the managed resources. (Inherited from SceneRenderer.)
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Render(SceneNode, RenderContext)	Renders the specified scene node. (Inherited from SceneNodeRenderer.)
	Render(IListSceneNode, RenderContext)	Renders the specified scene nodes. (Inherited from SceneNodeRenderer.)
	Render(IListSceneNode, RenderContext, RenderOrder)	Renders the specified scene nodes. (Inherited from SceneRenderer.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Properties

	Name	Description
	IsDisposed	Gets a value indicating whether this instance has been disposed of. (Inherited from SceneNodeRenderer.)
	Order	Gets the draw order of this scene node renderer. (Inherited from SceneNodeRenderer.)
	RenderCallback	Gets or sets the method which renders the scene into the shadow map.
	Renderers	Gets the list of scene node renderers managed by this instance. (Inherited from SceneRenderer.)

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Remarks

The ShadowMapRenderer handles StandardShadows, CubeMapShadows, CascadedShadows, and CompositeShadows. Support for new shadow types can be implemented by creating a custom SceneNodeRenderer and adding it to the Renderers collection.

During rendering the renderer changes the render context: Depending on the shadow type "Default", "Omnidirectional", or "Directional" is set as the Technique.

The shadow maps are stored in the Shadow property of the LightNode.

Render Callback:
The shadow map renderer requires a RenderCallback method to render the scene. The callback method needs to render the scene using the camera and the information given in the RenderContext.

Render Target and Viewport:
This renderer changes the current render target of the graphics device because it uses the graphics device to render the shadow maps. The render target and the viewport of the graphics device are undefined after rendering.

Reference

DigitalRune.Graphics.Rendering Namespace