Microsoft DirectX 9.0 SDK Update (October 2004)

EffectsInteractive3DLevel2Reverb.RoomRolloffFactor Property

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

Retrieves and sets the rolloff factor for the reflected signals of the EffectsInteractive3DLevel2Reverb structure.

Definition

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

Property Value

System.Single .

This property is read/write. 

Remarks

Can range from Interactive3DLevel2ReverbEffect.RoomRolloffFactorMin to Interactive3DLevel2ReverbEffect.RoomRolloffFactorMax.

The default value is Interactive3DLevel2ReverbEffect.RoomRolloffFactorDefault or 0.0.

The rolloff factor for the direct path is controlled by the DirectSound listener.

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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