What's New in DirectX 9.0 for Managed Code

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The managed code documentation has not changed substantially since the Microsoft® DirectX® 9.0 SDK Update (Summer 2004). New FragmentLinker, PRTPerVertex, and SimpleAnimation samples are provided with this SDK update. Preliminary documentation on these samples is located in the sample folders at:

(SDK root)\Samples\Managed\Direct3D

The remainder of this page describes new features of DirectX 9.0 for Managed Code since the DirectX 9.0 SDK Update (Summer 2003).

New Features

• Spherical harmonic (SH) math functions are exposed in the new SphericalHarmonics class.
• Samples are now authored using an improved sample framework. See Sample Framework.
• EffectStateManager was added as a user-implemented class to allow custom state management.
• The CleanType enumeration was added for mesh operations.
• The TextureShader class was added for using texture shaders.
• Easier to use 2-D drawing methods were added in the Sprite and Font classes.
• Improved interoperation is provided between DirectX 9.0 for Managed Code and native DirectX.

• New classes supporting precomputed radiance transfer (PRT) simulation were added and include the following:

  • PrtBuffer
  • PrtCompressedBuffer
  • PrtEngine
  • SphericalHarmonics
  • TextureGutterHelper
• Improved documentation is provided for the Microsoft.DirectX and Microsoft.DirectX.Direct3D namespaces.
• Complete documentation is provided for the Microsoft.DirectX.AudioVideoPlayback and Microsoft.DirectX.DirectSound namespaces, plus various new overview topics.

API Changes

The following classes have changed or are new to DirectX 9.0 for Managed Code:

• AnimationController
• AnimationOutput
• Device
• Effect
• EffectStateManager (New)
• GraphicsStream
• Light
• LightsCollection (New)
• RenderStateManager (New)
• SamplerStateManager (New)
• SamplerStateManagerCollection (New)
• TextureShader
• TextureStateManager (New)
• TextureStateManagerCollection (New)

The following classes have been removed from DirectX 9.0 for Managed Code:

• Lights
• RenderStates
• Sampler
• SamplerStates
• TextureState
• TextureStates
• XFileBinary
• XFileDataReference

Class mappings from old classes to new classes:

• Lights - LightsCollection (New)
• RenderStates - RenderStateManager (New)
• SamplerStates - SamplerStateManager (New)
• TextureStates - TextureStateManager (New)

Methods that use the ranks parameter, such as VertexBuffer.Lock or IndexBuffer.Lock, have changed to allow an unlimited number of dimensions to be used for locking a resource into an array. The ranks parameter is now defined as an array of integers that represents the size of each dimension of the returning array.

The Commit method was removed from the Light class. Existing code relying on Light.Commit should be modified. Now, changes made to a Light object's properties do not take effect until Light.Update is called, or Light.Enabled is set to true.

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