Microsoft DirectX 9.0 SDK Update (October 2004)

EffectsInteractive3DLevel2Reverb.Diffusion Property

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Note: This documentation is preliminary and is subject to change.
How Do I...?

Retrieves and sets the echo density in the late reverberation decay, in percent, of the EffectsInteractive3DLevel2Reverb structure.

Definition

Visual Basic .NET Public Property Diffusion As Single
C# public float Diffusion { get; set; }
Managed C++ public: __property float get_Diffusion();
public: __property void set_Diffusion(float);
JScript .NET public function get Diffusion() : float
public function set Diffusion(float);

Property Value

System.Single . Echo density in the late reverberation decay, in percent.

This property is read/write. 

Remarks

Can range from Interactive3DLevel2ReverbEffect.DiffusionyMin to Interactive3DLevel2ReverbEffect.DiffusionMax.

The default value is Interactive3DLevel2ReverbEffect.DiffusionDefault or 100 percent.

How Do I...?

Use Effect Parameters

This C# example demonstrates how to use the parameters of an effect object from a SecondaryBuffer object.

The buffer object in this code snippet is assumed to be the SecondaryBuffer from the code in Add Effects to a SecondaryBuffer Object.

              [C#]
              
//Retrieve the effects object and //the effect param sturctures and edit parameters. EchoEffect echo = (EchoEffect)buffer.GetEffects(0); EffectsEcho echo_params = echo.AllParameters; echo_params.LeftDelay = 250.0f; echo_params.RightDelay = 100.0f; echo_params.Feedback = 85.0f; echo_params.PanDelay = 1; echo_params.WetDryMix = 50.0f; ChorusEffect chorus = (ChorusEffect)buffer.GetEffects(1); EffectsChorus chorus_params = chorus.AllParameters; chorus_params.Delay = 15.0f; chorus_params.Depth = ChorusEffect.DepthMax; chorus_params.Phase = ChorusEffect.PhaseNegative90; chorus_params.Waveform = ChorusEffect.WaveSin; chorus_params.WetDryMix = 50.0f; //Set the new parameters and play the buffer. echo.AllParameters = echo_params; chorus.AllParameters = chorus_params; buffer.Play(0,BufferPlayFlags.Default);


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