private ICanvasImage CreateChromaKey()
{
textLabel = requiresWin10;
var chromaKeyEffect = new ChromaKeyEffect
{
Source = bitmapTiger,
Color = Color.FromArgb(255, 162, 125, 73),
Feather = true
};
// Composite the chromakeyed image on top of a background checker pattern.
Color[] twoByTwoChecker =
{
Colors.LightGray, Colors.DarkGray,
Colors.DarkGray, Colors.LightGray,
};
var compositeEffect = new CompositeEffect
{
Sources =
{
// Create the checkered background by scaling up a tiled 2x2 bitmap.
new CropEffect
{
Source = new DpiCompensationEffect
{
Source = new ScaleEffect
{
Source = new BorderEffect
{
Source = CanvasBitmap.CreateFromColors(canvas, twoByTwoChecker, 2, 2),
ExtendX = CanvasEdgeBehavior.Wrap,
ExtendY = CanvasEdgeBehavior.Wrap
},
Scale = new Vector2(8, 8),
InterpolationMode = CanvasImageInterpolation.NearestNeighbor
}
},
SourceRectangle = bitmapTiger.Bounds
},
// Composite the chromakey result on top of the background.
chromaKeyEffect
}
};
// Animation changes the chromakey matching tolerance.
animationFunction = elapsedTime =>
{
chromaKeyEffect.Tolerance = 0.1f + (float)Math.Sin(elapsedTime) * 0.1f;
};
return compositeEffect;
}
private ICanvasImage CreateChromaKey()
{
textLabel = requiresWin10;
var chromaKeyEffect = new ChromaKeyEffect
{
Source = bitmapTiger,
Color = Color.FromArgb(255, 162, 125, 73),
Feather = true
};
// Composite the chromakeyed image on top of a background checker pattern.
var compositeEffect = new CompositeEffect
{
Sources = { CreateCheckeredBackground(), chromaKeyEffect }
};
// Animation changes the chromakey matching tolerance.
animationFunction = elapsedTime =>
{
chromaKeyEffect.Tolerance = 0.1f + (float)Math.Sin(elapsedTime) * 0.1f;
};
return compositeEffect;
}
