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EffectParameter Class

Represents an Effect parameter.

Namespace: Microsoft.Xna.Framework.Graphics
Assembly: Microsoft.Xna.Framework.Graphics (in microsoft.xna.framework.graphics.dll)

Syntax

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public sealed class EffectParameter

Remarks

Creating and assigning a EffectParameter instance for each technique in your Effect is significantly faster than using the Parameters indexed property on Effect.

Example

To use a EffectParameter you must:

Create a EffectParameter for each parameter in your Effect that you will be setting in Draw or Update.

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public EffectParameter mWorld;
public EffectParameter mCameraView;
public EffectParameter CameraPos;
public EffectParameter mCameraProj;

Assign an Effect parameter to your EffectParameter.

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mWorld = effect.Parameters["g_mWorld"];
mCameraView = effect.Parameters["g_mCameraView"];
CameraPos = effect.Parameters["g_CameraPos"];
mCameraProj = effect.Parameters["g_mCameraProj"];

Call SetValue on your EffectParameter to change the parameter value.

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MyEffect.CameraPos.SetValue(CameraPos);
MyEffect.mCameraView.SetValue(view);
MyEffect.mCameraProj.SetValue(projection);
MyEffect.LightPos.SetValue(LightPos);
MyEffect.mLightView.SetValue(Matrix.CreateLookAt(LightPos,
    bounds.Center, Vector3.Up));

Reference

EffectParameter Members
Effect.Parameters
Microsoft.Xna.Framework.Graphics Namespace

Platforms

Xbox 360, Windows 7, Windows Vista, Windows XP

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