public void Dispose()
{
_cl?.Dispose();
_cl = null;
morphology?.Dispose();
morphology = null;
blur?.Dispose();
blur = null;
}
public void Dispose()
{
_cl?.Dispose();
_cl = null;
morphology?.Dispose();
morphology = null;
blur?.Dispose();
blur = null;
}
public GlowEffectGraph()
{
Blur.BlurAmount = 10;
Blur.BorderMode = EffectBorderMode.Soft;
morphology = new MorphologyEffect
{
Mode = MorphologyEffectMode.Dilate,
Width = 10,
Height = 10
};
Blur.Source = morphology;
}
public ICanvasImage GetRegionMask()
{
// Do we already have a cached version of this mask?
ICanvasImage mask = cachedRegionMask.Get(regionFeather, regionDilate);
if (mask == null)
{
mask = regionMask;
// Expand or contract the selection?
if (regionDilate != 0)
{
mask = new MorphologyEffect
{
Source = new BorderEffect {
Source = mask
},
Mode = (regionDilate > 0) ? MorphologyEffectMode.Dilate : MorphologyEffectMode.Erode,
Height = Math.Abs(regionDilate),
Width = Math.Abs(regionDilate)
};
}
// Feather the selection?
if (regionFeather > 0)
{
mask = new GaussianBlurEffect
{
Source = mask,
BlurAmount = regionFeather,
BorderMode = EffectBorderMode.Hard
};
}
// If this mask was expensive to compute, cache it now.
if (mask != regionMask)
{
mask = cachedRegionMask.Cache(Parent, mask, regionFeather, regionDilate);
}
}
return(mask);
}
private ICanvasImage CreateMorphology()
{
var morphologyEffect = new MorphologyEffect
{
Source = bitmapTiger,
};
// Animation changes the morphology filter kernel size, and switches back and forth between the two modes.
animationFunction = elapsedTime =>
{
var t = (int)((elapsedTime * 10) % 50);
morphologyEffect.Mode = (t < 25) ? MorphologyEffectMode.Erode :
MorphologyEffectMode.Dilate;
textLabel = "Mode: " + morphologyEffect.Mode;
morphologyEffect.Width =
morphologyEffect.Height = t % 25 + 1;
};
return(morphologyEffect);
}
/// <summary>
/// Generate the flame effect graph. This method is called before the text command list
/// (input) is created.
/// </summary>
private void CreateFlameEffect()
{
// Thicken the text.
morphology = new MorphologyEffect
{
// The Source property is set by SetupText().
Mode = MorphologyEffectMode.Dilate,
Width = 7,
Height = 1
};
// Blur, then colorize the text from black to red to orange as the alpha increases.
var colorize = new ColorMatrixEffect
{
Source = new GaussianBlurEffect
{
Source = morphology,
BlurAmount = 3f
},
ColorMatrix = new Matrix5x4
{
M11 = 0f,
M12 = 0f,
M13 = 0f,
M14 = 0f,
M21 = 0f,
M22 = 0f,
M23 = 0f,
M24 = 0f,
M31 = 0f,
M32 = 0f,
M33 = 0f,
M34 = 0f,
M41 = 0f,
M42 = 1f,
M43 = 0f,
M44 = 1f,
M51 = 1f,
M52 = -0.5f,
M53 = 0f,
M54 = 0f
}
};
// Generate a Perlin noise field (see flamePosition).
// Animate the noise by modifying flameAnimation's transform matrix at render time.
flameAnimation = new Transform2DEffect
{
Source = new BorderEffect
{
Source = new TurbulenceEffect
{
Frequency = new Vector2(0.109f, 0.109f),
Size = new Vector2(500.0f, 80.0f)
},
// Use Mirror extend mode to allow us to spatially translate the noise
// without any visible seams.
ExtendX = CanvasEdgeBehavior.Mirror,
ExtendY = CanvasEdgeBehavior.Mirror
}
};
// Give the flame its wavy appearance by generating a displacement map from the noise
// (see flameAnimation) and applying this to the text.
// Stretch and position this flame behind the original text.
flamePosition = new Transform2DEffect
{
Source = new DisplacementMapEffect
{
Source = colorize,
Displacement = flameAnimation,
Amount = 40.0f
}
// Set the transform matrix at render time as it depends on window size.
};
// Composite the text over the flames.
composite = new CompositeEffect()
{
Sources = { flamePosition, null }
// Replace null with the text command list when it is created.
};
}
private ICanvasImage CreateMorphology()
{
var morphologyEffect = new MorphologyEffect
{
Source = bitmapTiger,
};
// Animation changes the morphology filter kernel size, and switches back and forth between the two modes.
animationFunction = elapsedTime =>
{
var t = (int)((elapsedTime * 10) % 50);
morphologyEffect.Mode = (t < 25) ? MorphologyEffectMode.Erode :
MorphologyEffectMode.Dilate;
textLabel = "Mode: " + morphologyEffect.Mode;
morphologyEffect.Width =
morphologyEffect.Height = t % 25 + 1;
};
return morphologyEffect;
}
/// <summary>
/// Generate the flame effect graph. This method is called before the text command list
/// (input) is created.
/// </summary>
private void CreateFlameEffect()
{
// Thicken the text.
morphology = new MorphologyEffect
{
// The Source property is set by SetupText().
Mode = MorphologyEffectMode.Dilate,
Width = 7,
Height = 1
};
// Blur, then colorize the text from black to red to orange as the alpha increases.
var colorize = new ColorMatrixEffect
{
Source = new GaussianBlurEffect
{
Source = morphology,
BlurAmount = 3f
},
ColorMatrix = new Matrix5x4
{
M11 = 0f, M12 = 0f, M13 = 0f, M14 = 0f,
M21 = 0f, M22 = 0f, M23 = 0f, M24 = 0f,
M31 = 0f, M32 = 0f, M33 = 0f, M34 = 0f,
M41 = 0f, M42 = 1f, M43 = 0f, M44 = 1f,
M51 = 1f, M52 = -0.5f, M53 = 0f, M54 = 0f
}
};
// Generate a Perlin noise field (see flamePosition).
// Animate the noise by modifying flameAnimation's transform matrix at render time.
flameAnimation = new Transform2DEffect
{
Source = new BorderEffect
{
Source = new TurbulenceEffect
{
Frequency = new Vector2(0.109f, 0.109f),
Size = new Vector2(500.0f, 80.0f)
},
// Use Mirror extend mode to allow us to spatially translate the noise
// without any visible seams.
ExtendX = CanvasEdgeBehavior.Mirror,
ExtendY = CanvasEdgeBehavior.Mirror
}
};
// Give the flame its wavy appearance by generating a displacement map from the noise
// (see flameAnimation) and applying this to the text.
// Stretch and position this flame behind the original text.
flamePosition = new Transform2DEffect
{
Source = new DisplacementMapEffect
{
Source = colorize,
Displacement = flameAnimation,
Amount = 40.0f
}
// Set the transform matrix at render time as it depends on window size.
};
// Composite the text over the flames.
composite = new CompositeEffect()
{
Sources = { flamePosition, null }
// Replace null with the text command list when it is created.
};
}
public ICanvasImage GetRegionMask()
{
// Do we already have a cached version of this mask?
ICanvasImage mask = cachedRegionMask.Get(regionFeather, regionDilate);
if (mask == null)
{
mask = regionMask;
// Expand or contract the selection?
if (regionDilate != 0)
{
mask = new MorphologyEffect
{
Source = new BorderEffect { Source = mask },
Mode = (regionDilate > 0) ? MorphologyEffectMode.Dilate : MorphologyEffectMode.Erode,
Height = Math.Abs(regionDilate),
Width = Math.Abs(regionDilate)
};
}
// Feather the selection?
if (regionFeather > 0)
{
mask = new GaussianBlurEffect
{
Source = mask,
BlurAmount = regionFeather,
BorderMode = EffectBorderMode.Hard
};
}
// If this mask was expensive to compute, cache it now.
if (mask != regionMask)
{
mask = cachedRegionMask.Cache(Parent, mask, regionFeather, regionDilate);
}
}
return mask;
}
