EffectParameter Class
Represents an Effect parameter.
Namespace: Microsoft.Xna.Framework.Graphics
Assembly: Microsoft.Xna.Framework.Graphics (in microsoft.xna.framework.graphics.dll)
Creating and assigning a EffectParameter instance for each technique in your Effect is significantly faster than using the Parameters indexed property on Effect.
To use a EffectParameter you must:
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Create a EffectParameter for each parameter in your Effect that you will be setting in Draw or Update.
public EffectParameter mWorld; public EffectParameter mCameraView; public EffectParameter CameraPos; public EffectParameter mCameraProj;
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Assign an Effect parameter to your EffectParameter.
mWorld = effect.Parameters["g_mWorld"]; mCameraView = effect.Parameters["g_mCameraView"]; CameraPos = effect.Parameters["g_CameraPos"]; mCameraProj = effect.Parameters["g_mCameraProj"];
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Call SetValue on your EffectParameter to change the parameter value.
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));
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