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一个基本的 WPF 性能问题

发布于 2024-10-22 01:22:43 字数 18848 浏览 7 评论 0原文

我是一名设计师，我需要了解为什么我在 Expression Blend 中创建的应用程序运行如此缓慢。实验表明，含有大量元素的背景对这个问题的影响最大。我知道有很多关于优化 WPF 性能的讨论和文章，但是对于不了解背后代码的人来说，它们毫无用处。我想知道是否有人可以查看 Blend 中生成的背景的 XAML 代码并告诉我那里完全错误的地方。我们认为背景必须是矢量，因为用户可以缩放应用程序窗口。或者也许有一种方法可以使用位图作为背景，这样可以在不损失质量和性能的情况下进行缩放？

Data=" " 标签中的代码中有很长的符号序列，我将其删除以使其更小。无论如何，我不相信有人能读懂它们。

像这样，例如： F1 中号 410.527,254.36L 749.013,254.361C 754.222,254.361 758.369,258.954 758.369,263.496L 758.364,296.53C 758.364,296.53 400.6 96,272.805 400.696,476.456C 400.696,524.289 400.555,333.192 400.555,264.384C 400.555,259.006 404.212, 254.36 410.527,254.36 Z"

它们不是问题的原因。它们出现是因为我从 Expression Design 导出了整个东西。当我用 Blend 中创建的相同省略号替换它们时，这个标签没有出现，而且也没有得到任何改善。

所以，这是代码。感谢您尝试帮助我！

<?xml version="1.0" encoding="utf-8"?>
<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity" xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Name="Main_menu" Width="1920" Height="1080" Clip="F1 M 0,0L 1920,0L 1920,1080L 0,1080L 0,0">
<Canvas x:Name="Layer_10" Width="1920" Height="1080" Canvas.Left="0" Canvas.Top="0">
    <Rectangle x:Name="Rectangle" Width="1919.99" Height="1079.99" Canvas.Left="0.00744629" Canvas.Top="0.00744629" Stretch="Fill" StrokeThickness="1" StrokeLineJoin="Round" Stroke="#FF000000">
        <Rectangle.Fill>
            <RadialGradientBrush RadiusX="0.6425" RadiusY="1.14223" Center="0.492973,1.03887" GradientOrigin="0.492973,1.03887">
                <RadialGradientBrush.RelativeTransform>
                    <TransformGroup/>
                </RadialGradientBrush.RelativeTransform>
                <GradientStop Color="#FF0080FF" Offset="0"/>
                <GradientStop Color="#FF024BA5" Offset="0.472441"/>
                <GradientStop Color="#FF04174C" Offset="1"/>
            </RadialGradientBrush>
        </Rectangle.Fill>
    </Rectangle>
</Canvas>
<Canvas x:Name="Layer_13" Width="1920" Height="1080" Canvas.Left="0" Canvas.Top="0">
    <Path x:Name="Path" Width="1435.59" Height="1490.63" Canvas.Left="345.348" Canvas.Top="-242.593" Stretch="Fill" Data=" ">
        <Path.Fill>
            <LinearGradientBrush StartPoint="0.493634,1.09725" EndPoint="0.493634,-0.00832516">
                <GradientStop Color="#1006005A" Offset="0.00465116"/>
                <GradientStop Color="#1000D0FF" Offset="1"/>
            </LinearGradientBrush>
        </Path.Fill>
        <Path.Effect>
            <BlurEffect Radius="100" RenderingBias="Quality"/>
        </Path.Effect>
    </Path>
</Canvas>
<Path x:Name="Path_67" Width="369.444" Height="278.75" Canvas.Left="394.773" Canvas.Top="248.532" Stretch="Fill" StrokeThickness="6.66667" StrokeLineJoin="Round" Stroke="#43BFEAFF" Data=" ">
    <Path.Fill>
        <LinearGradientBrush StartPoint="0.5,1.17585" EndPoint="0.5,-0.175854">
            <GradientStop Color="#4300236A" Offset="0.150862"/>
            <GradientStop Color="#43FFFFFF" Offset="1"/>
        </LinearGradientBrush>
    </Path.Fill>
    <Path.Effect>
        <DropShadowEffect BlurRadius="38" ShadowDepth="0" Opacity="1" Color="#FF000000" Direction="270"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_72" Width="357.814" Height="229.689" Canvas.Left="400.555" Canvas.Top="254.36" Stretch="Fill" Fill="#10FFFFFF" Data=" "/>
<Ellipse x:Name="Ellipse" Width="50" Height="50" Canvas.Left="1248" Canvas.Top="214" Stretch="Fill" Fill="#1500ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="49"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_0" Width="46" Height="46" Canvas.Left="1346" Canvas.Top="792" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_1" Width="100" Height="100" Canvas.Left="96" Canvas.Top="-52" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_2" Width="82" Height="82" Canvas.Left="1406" Canvas.Top="696" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_3" Width="77.918" Height="77.918" Canvas.Left="1386.08" Canvas.Top="114.082" Stretch="Fill" Fill="#2800ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_4" Width="64" Height="64" Canvas.Left="877.918" Canvas.Top="582.207" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="57.4"/>
    </Ellipse.Effect>
</Ellipse>
<Path x:Name="Path_5" Width="36" Height="36" Canvas.Left="1515.92" Canvas.Top="750.207" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="50"/>
    </Path.Effect>
</Path>
<Ellipse x:Name="Ellipse_6" Width="82.949" Height="82.949" Canvas.Left="1038.55" Canvas.Top="102.5" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Path x:Name="Path_7" Width="30" Height="30" Canvas.Left="797.918" Canvas.Top="220.207" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="100"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_8" Width="56" Height="56" Canvas.Left="384" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="100"/>
    </Path.Effect>
</Path>
<Ellipse x:Name="Ellipse_9" Width="34" Height="34" Canvas.Left="919.418" Canvas.Top="558.707" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="49.9"/>
    </Ellipse.Effect>
</Ellipse>
<Path x:Name="Path_10" Width="42" Height="42" Canvas.Left="1103.92" Canvas.Top="408.207" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="30.3"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_11" Width="16" Height="16" Canvas.Left="1567.92" Canvas.Top="698.207" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="50"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_12" Width="38" Height="38" Canvas.Left="1541.42" Canvas.Top="580.707" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="50"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_13" Width="30.082" Height="30.081" Canvas.Left="1889.92" Canvas.Top="376.207" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="100"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_14" Width="40" Height="40" Canvas.Left="1797.92" Canvas.Top="144.207" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="100"/>
    </Path.Effect>
</Path>
<Ellipse x:Name="Ellipse_15" Width="26" Height="26" Canvas.Left="1255.92" Canvas.Top="960.207" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="50.9"/>
    </Ellipse.Effect>
</Ellipse>
<Path x:Name="Path_16" Width="20" Height="20" Canvas.Left="1344" Canvas.Top="830" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="50"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_17" Width="34" Height="34" Canvas.Left="1199.92" Canvas.Top="670.207" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="50"/>
    </Path.Effect>
</Path>
<Ellipse x:Name="Ellipse_18" Width="55.022" Height="55.022" Canvas.Left="120.873" Canvas.Top="215.197" Stretch="Fill" Fill="#3400A9FF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_19" Width="29.443" Height="29.443" Canvas.Left="104.449" Canvas.Top="290.788" Stretch="Fill" Fill="#3400A9FF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_20" Width="60.533" Height="60.533" Canvas.Left="1211.47" Canvas.Top="851.467" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_21" Width="27.335" Height="27.335" Canvas.Left="712.54" Canvas.Top="992.388" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_22" Width="66.436" Height="66.436" Canvas.Left="960" Canvas.Top="984" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="72.2"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_23" Width="46.642" Height="46.642" Canvas.Left="1177.36" Canvas.Top="577.358" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="50"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_24" Width="148.28" Height="148.28" Canvas.Left="1056" Canvas.Top="1003.72" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_25" Width="144" Height="144" Canvas.Left="648" Canvas.Top="216" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="53"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_26" Width="181.12" Height="181.12" Canvas.Left="1310.31" Canvas.Top="454.438" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_27" Width="55.132" Height="55.132" Canvas.Left="1104" Canvas.Top="712.868" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="41.1"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_28" Width="41.054" Height="41.054" Canvas.Left="1690.22" Canvas.Top="278.661" Stretch="Fill" Fill="#1200ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="23.4"/>
    </Ellipse.Effect>
</Ellipse>
<Path x:Name="Path_29" Width="16.734" Height="16.734" Canvas.Left="1056.33" Canvas.Top="972.727" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="15"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_30" Width="16.217" Height="16.217" Canvas.Left="1149.66" Canvas.Top="984.913" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="16"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_31" Width="16.217" Height="16.217" Canvas.Left="1143.89" Canvas.Top="895.783" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="16"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_32" Width="20.238" Height="20.238" Canvas.Left="1237.79" Canvas.Top="781.816" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="22"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_33" Width="16.217" Height="16.217" Canvas.Left="1039.78" Canvas.Top="807.891" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="8.31495"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_34" Width="16.217" Height="16.217" Canvas.Left="1063.78" Canvas.Top="1047.89" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="18.5197"/>
    </Path.Effect>
</Path>
<Ellipse x:Name="Ellipse_35" Width="10.095" Height="10.095" Canvas.Left="1052.31" Canvas.Top="938.912" Stretch="Fill" Fill="#2C00C4FF">
    <Ellipse.Effect>
        <BlurEffect Radius="9.4"/>
    </Ellipse.Effect>
</Ellipse>
<Path x:Name="Path_36" Width="2.861" Height="2.861" Canvas.Left="1035.37" Canvas.Top="914.859" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="3.40158"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_37" Width="2.861" Height="2.861" Canvas.Left="1003.46" Canvas.Top="934.026" Stretch="Fill" Fill="#F700C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="9.4"/>
    </Path.Effect>
</Path>
<Ellipse x:Name="Ellipse_38" Width="31.241" Height="31.241" Canvas.Left="872.549" Canvas.Top="409.266" Stretch="Fill" Fill="#3400267C">
    <Ellipse.Effect>
        <BlurEffect Radius="37.7953"/>
    </Ellipse.Effect>
</Ellipse>
<Path x:Name="Path_39" Width="31.241" Height="31.241" Canvas.Left="1660.24" Canvas.Top="618.972" Stretch="Fill" Fill="#5500267C" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="37.7953"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_40" Width="16.217" Height="16.217" Canvas.Left="1071.89" Canvas.Top="960" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="16"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_41" Width="16.217" Height="16.217" Canvas.Left="1000.23" Canvas.Top="999.847" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="22.3"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_42" Width="2.861" Height="2.861" Canvas.Left="814.572" Canvas.Top="1019.87" Stretch="Fill" Fill="#F700C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="9"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_43" Width="16.217" Height="16.217" Canvas.Left="1231.78" Canvas.Top="807.891" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="16"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_44" Width="2.861" Height="2.861" Canvas.Left="867.332" Canvas.Top="1030.57" Stretch="Fill" Fill="#F700C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="9"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_45" Width="2.861" Height="2.861" Canvas.Left="895.082" Canvas.Top="1046.94" Stretch="Fill" Fill="#F700C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="9"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_46" Width="2.861" Height="2.861" Canvas.Left="836.332" Canvas.Top="1056.86" Stretch="Fill" Fill="#F700C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="9"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_47" Width="2.861" Height="2.861" Canvas.Left="841.666" Canvas.Top="1005.86" Stretch="Fill" Fill="#F700C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="9"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_48" Width="2.861" Height="2.861" Canvas.Left="1064.26" Canvas.Top="993.488" Stretch="Fill" Fill="#F700C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="9.4"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_49" Width="2.861" Height="2.861" Canvas.Left="1092.01" Canvas.Top="1009.86" Stretch="Fill" Fill="#F700C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="9.4"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_50" Width="2.861" Height="2.861" Canvas.Left="1005.13" Canvas.Top="1051.67" Stretch="Fill" Fill="#F700C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="9.4"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_51" Width="2.861" Height="2.861" Canvas.Left="1038.59" Canvas.Top="968.78" Stretch="Fill" Fill="#F700C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="9.4"/>
    </Path.Effect>
</Path>
<Ellipse x:Name="Ellipse_52" Width="60.533" Height="60.533" Canvas.Left="617.5" Canvas.Top="1049.5" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Path x:Name="Path_53" Width="20.238" Height="20.238" Canvas.Left="925.5" Canvas.Top="973.61" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="22.3"/>
    </Path.Effect>
</Path>
<Ellipse x:Name="Ellipse_54" Width="55.022" Height="55.021" Canvas.Left="328.978" Canvas.Top="16.979" Stretch="Fill" Fill="#3400A9FF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Path x:Name="Path_55" Width="40" Height="40" Canvas.Left="1492.02" Canvas.Top="123.99" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="100"/>
    </Path.Effect>
</Path>
<Path x:Name="Path_56" Width="40" Height="40" Canvas.Left="1516.12" Canvas.Top="267.934" Stretch="Fill" Fill="#3400ADFF" Data=" ">
    <Path.Effect>
        <BlurEffect Radius="100"/>
    </Path.Effect>
</Path>
<Ellipse x:Name="Ellipse_57" Width="66.436" Height="66.436" Canvas.Left="126.914" Canvas.Top="397.434" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="72.2"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_58" Width="96" Height="96" Canvas.Left="527.999" Canvas.Top="960.001" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>
<Ellipse x:Name="Ellipse_59" Width="96" Height="96" Canvas.Left="1151.74" Canvas.Top="240.175" Stretch="Fill" Fill="#3400ADFF">
    <Ellipse.Effect>
        <BlurEffect Radius="100"/>
    </Ellipse.Effect>
</Ellipse>

原文

I'm a designer and I need to understand why does the application I created in Expression Blend run so slow. Experiments show that the background with lots of elements contributes the most to the issue. I know there is a lot of discussions and articles on optimizing performance in WPF, but for someone who doesn't understand the code behind, they are useless. I wondered if someone could look at the XAML code of the background generated in Blend and tell me what is completely wrong there. We think that the background must be in vector, since the user may scale the application window. Or maybe there is a way to use a bitmap for the background, which would scale without losing in quality and performance?

There were long sequences of symbols in the code in the Data=" " tags, which i deleted to make it smaller. I don't believe anyone can read them anyway.

Like this, for example:
"F1 M 410.527,254.36L 749.013,254.361C 754.222,254.361 758.369,258.954 758.369,263.496L 758.364,296.53C 758.364,296.53 400.696,272.805 400.696,476.456C 400.696,524.289 400.555,333.192 400.555,264.384C 400.555,259.006 404.212,254.36 410.527,254.36 Z"

They are not the cause of the issue. They appeared because I exported the whole thing from Expression Design. When I replaced them with same ellipses created in Blend this tag didn't appear, and it didn't get any better.

So, here is the code. Thank you for trying to help me!

<?xml version="1.0" encoding="utf-8"?>
<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity" xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Name="Main_menu" Width="1920" Height="1080" Clip="F1 M 0,0L 1920,0L 1920,1080L 0,1080L 0,0">
<Canvas x:Name="Layer_10" Width="1920" Height="1080" Canvas.Left="0" Canvas.Top="0">
    <Rectangle x:Name="Rectangle" Width="1919.99" Height="1079.99" Canvas.Left="0.00744629" Canvas.Top="0.00744629" Stretch="Fill" StrokeThickness="1" StrokeLineJoin="Round" Stroke="#FF000000">
        <Rectangle.Fill>
            <RadialGradientBrush RadiusX="0.6425" RadiusY="1.14223" Center="0.492973,1.03887" GradientOrigin="0.492973,1.03887">
                <RadialGradientBrush.RelativeTransform>
                    <TransformGroup/>
                </RadialGradientBrush.RelativeTransform>
                <GradientStop Color="#FF0080FF" Offset="0"/>
                <GradientStop Color="#FF024BA5" Offset="0.472441"/>
                <GradientStop Color="#FF04174C" Offset="1"/>
            </RadialGradientBrush>
        </Rectangle.Fill>
    </Rectangle>
</Canvas>
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        <BlurEffect Radius="8.31495"/>
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        <BlurEffect Radius="18.5197"/>
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    <Ellipse.Effect>
        <BlurEffect Radius="9.4"/>
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        <BlurEffect Radius="3.40158"/>
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        <BlurEffect Radius="9.4"/>
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</Path>
<Ellipse x:Name="Ellipse_38" Width="31.241" Height="31.241" Canvas.Left="872.549" Canvas.Top="409.266" Stretch="Fill" Fill="#3400267C">
    <Ellipse.Effect>
        <BlurEffect Radius="37.7953"/>
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</Ellipse>
<Path x:Name="Path_39" Width="31.241" Height="31.241" Canvas.Left="1660.24" Canvas.Top="618.972" Stretch="Fill" Fill="#5500267C" Data=" ">
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        <BlurEffect Radius="37.7953"/>
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</Path>
<Path x:Name="Path_40" Width="16.217" Height="16.217" Canvas.Left="1071.89" Canvas.Top="960" Stretch="Fill" Fill="#2C00C4FF" Data=" ">
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评论（2）

演出会有结束 2024-10-29 01:22:43

这可能是由于有大量的 BlurEffect（几乎在每条路径上）。这些转化为在显卡上执行的着色器 - 并且拥有大量着色器将需要相当不错的显卡才能获得良好的性能。

通过设置（外部）Canvas，这可能可以完全消除作为性能问题。缓存模式：

<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
     xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     mc:Ignorable="d" x:Name="Main_menu" Width="1920" Height="1080" 
    Clip="F1 M 0,0L 1920,0L 1920,1080L 0,1080L 0,0">

  <!-- Set cache mode -->
  <Canvas.CacheMode>
      <BitmapCache EnableClearType="False" RenderAtScale="2" />
  </Canvas.CacheMode>

    <Canvas x:Name="Layer_10" Width="1920" Height="1080" Canvas.Left="0" Canvas.Top="0">
       ....

This is likely due to having a huge number of BlurEffects (on nearly every path). These translate to shaders that are executed on the graphics card - and having a lot of them will require a fairly decent graphics card to get good perf.

This can probably be eliminated entirely as a performance issue by setting the (outer) Canvas.CacheMode:

<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
     xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     mc:Ignorable="d" x:Name="Main_menu" Width="1920" Height="1080" 
    Clip="F1 M 0,0L 1920,0L 1920,1080L 0,1080L 0,0">

  <!-- Set cache mode -->
  <Canvas.CacheMode>
      <BitmapCache EnableClearType="False" RenderAtScale="2" />
  </Canvas.CacheMode>

    <Canvas x:Name="Layer_10" Width="1920" Height="1080" Canvas.Left="0" Canvas.Top="0">
       ....
回复 原文
三生一梦 2024-10-29 01:22:43

将您的椭圆对象转换为路径对象，在 Blend 中，您可以通过右键单击该对象来执行此操作 -->路径-->转换为路径

椭圆非常慢，因为它们使用 sin 和 cos 来计算......

Transform your Ellipse object to Path object, in Blend you do this by right click on the object --> Path --> Convert to Path

Ellipse are very slow, because they use sin and cos to calculate...

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