private CompositionBrush CreateCrossFadeEffectBrush(Compositor compositor, CompositionBrush from, CompositionBrush to)
{
var crossFadeEffect = new CrossFadeEffect();
crossFadeEffect.Name = "Crossfade"; // Name to reference when starting the animation.
crossFadeEffect.Source1 = new CompositionEffectSourceParameter("source1");
crossFadeEffect.Source2 = new CompositionEffectSourceParameter("source2");
crossFadeEffect.CrossFade = 0;
CompositionEffectBrush crossFadeEffectBrush = compositor.CreateEffectFactory(crossFadeEffect, new List <string>()
{
"Crossfade.CrossFade"
}).CreateBrush();
crossFadeEffectBrush.Comment = "Crossfade";
// The inputs have to be swapped here to work correctly...
crossFadeEffectBrush.SetSourceParameter("source1", to);
crossFadeEffectBrush.SetSourceParameter("source2", from);
return(crossFadeEffectBrush);
}
private ICanvasImage CreateCrossFade()
{
if (!CrossFadeEffect.IsSupported)
{
return CreateNotSupportedMessage(requiresWin10_14393);
}
textLabel = requiresWin10_14393;
var upsideDownTiger = new Transform2DEffect
{
Source = bitmapTiger,
TransformMatrix = Matrix3x2.CreateScale(1, -1, bitmapTiger.Size.ToVector2() / 2)
};
var crossFadeEffect = new CrossFadeEffect
{
Source1 = bitmapTiger,
Source2 = upsideDownTiger
};
// Animation changes the crossfade amount.
animationFunction = elapsedTime =>
{
crossFadeEffect.CrossFade = 0.5f + (float)Math.Sin(elapsedTime * 2) / 2;
};
return crossFadeEffect;
}
