Vista - Scalable BitmapEffects

I'm writing an application that contains some Rectangles (with
DropShadowBitmapEffect) in a Canvas with a ScaleTransform (> 1).
The rectangles are blurred. I'd like to know if the BitmapEffects is
always going to produce a non scalable effect or if is going to change
in the following versions.

Thanks in advance.

Have you tried scaling the rectangle within a viewbox instead of a scaled
canvas? I'm wondering if it's maybe scaling the anti-aliasing along with
the vectors themselves (I haven't noticed that effect with a viewbox)

Ok, try this:

<Canvas>
<Canvas.RenderTransform>
<ScaleTransform x:Name="scale" ScaleX="1" ScaleY="1" />
</Canvas.RenderTransform>

<Button Width="80" Height="30">
<Button.BitmapEffect>
<DropShadowBitmapEffect />
</Button.BitmapEffect>
Button
</Button>

<Canvas.Triggers>
<EventTrigger RoutedEvent="Canvas.Loaded">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard Storyboard.TargetName="scale">
<DoubleAnimation Storyboard.TargetProperty="ScaleX" To="10" />
<DoubleAnimation Storyboard.TargetProperty="ScaleY" To="10" />
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</Canvas.Triggers>
</Canvas>

Look that the button is blurred until you move your mouse over (forcing
repaint). This don't happens if I set BitmapEffect="{x:Null}".
Anyway, the ScaleTransform does not affect the DropShadow when the
button is well painted.

I'm experiencing this problem as well.

<lcantelmo@gmail.com> wrote in message
news:1139317764.433797.51330@g47g2000cwa.googlegroups.com...
> Ok, try this:
>
> <Canvas>
> <Canvas.RenderTransform>
> <ScaleTransform x:Name="scale" ScaleX="1" ScaleY="1" />
> </Canvas.RenderTransform>
>
> <Button Width="80" Height="30">
> <Button.BitmapEffect>
> <DropShadowBitmapEffect />
> </Button.BitmapEffect>
> Button
> </Button>
>
> <Canvas.Triggers>
> <EventTrigger RoutedEvent="Canvas.Loaded">
> <EventTrigger.Actions>
> <BeginStoryboard>
> <Storyboard Storyboard.TargetName="scale">
> <DoubleAnimation Storyboard.TargetProperty="ScaleX" To="10" />
> <DoubleAnimation Storyboard.TargetProperty="ScaleY" To="10" />
> </Storyboard>
> </BeginStoryboard>
> </EventTrigger.Actions>
> </EventTrigger>
> </Canvas.Triggers>
> </Canvas>
>
> Look that the button is blurred until you move your mouse over (forcing
> repaint). This don't happens if I set BitmapEffect="{x:Null}".
> Anyway, the ScaleTransform does not affect the DropShadow when the
> button is well painted.
>

Thanks for your feedback. This is now fixed for Beta 2. (Not JAN or FEB CTP)

By design,
1. Effects used to be applied prior to scaling.
2. Effects = BitmapEffect = non-Vector = does not scale well.


"CSkinner" wrote:

> I'm experiencing this problem as well.
>
> <lcantelmo@gmail.com> wrote in message
> news:1139317764.433797.51330@g47g2000cwa.googlegroups.com...
> > Ok, try this:
> >
> > <Canvas>
> > <Canvas.RenderTransform>
> > <ScaleTransform x:Name="scale" ScaleX="1" ScaleY="1" />
> > </Canvas.RenderTransform>
> >
> > <Button Width="80" Height="30">
> > <Button.BitmapEffect>
> > <DropShadowBitmapEffect />
> > </Button.BitmapEffect>
> > Button
> > </Button>
> >
> > <Canvas.Triggers>
> > <EventTrigger RoutedEvent="Canvas.Loaded">
> > <EventTrigger.Actions>
> > <BeginStoryboard>
> > <Storyboard Storyboard.TargetName="scale">
> > <DoubleAnimation Storyboard.TargetProperty="ScaleX" To="10" />
> > <DoubleAnimation Storyboard.TargetProperty="ScaleY" To="10" />
> > </Storyboard>
> > </BeginStoryboard>
> > </EventTrigger.Actions>
> > </EventTrigger>
> > </Canvas.Triggers>
> > </Canvas>
> >
> > Look that the button is blurred until you move your mouse over (forcing
> > repaint). This don't happens if I set BitmapEffect="{x:Null}".
> > Anyway, the ScaleTransform does not affect the DropShadow when the
> > button is well painted.
> >
>
>
>