平面投影和比例导致银光模糊

发布于 2024-08-25 06:41:52 字数 2096 浏览 9 评论 0原文

好的,

所以我尝试制作一个依赖于按单个因素缩放图像的应用程序。然后可以将这些图像翻转,但使用在 ProjectionPlane 旋转上工作的动画。

当图像同时缩放和旋转时,就会出现问题。由于某种原因,它开始模糊,而未缩放的图像不会模糊。

另外,如果您查看下面的示例图像(顶部缩放并旋转,底部旋转),顶部图像的投影甚至看起来都不正确。太水平了。

http://img43.imageshack.us/img43/5923/testimages.png http://img43.imageshack.us/img43/5923/testimages.png http:/ /img43.imageshack.us/img43/5923/testimages.png

这是测试应用程序的代码:

<UserControl x:Class="SilverlightApplication1.Page"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    Width="400" Height="300">
    <Canvas x:Name="LayoutRoot" Background="White">

            <Border Canvas.Top="25" Canvas.Left="50">

                <Border.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="3" ScaleY="3" />
                    </TransformGroup>
                </Border.RenderTransform>

                <Border.Projection>
                    <PlaneProjection RotationY="45"/>
                </Border.Projection>

                <Image Source="bw-test-pattern.jpg" Width="50" Height="40"/>
            </Border>

            <Border Canvas.Top="150" Canvas.Left="50">
                <Border.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="1" ScaleY="1" />
                    </TransformGroup>
                </Border.RenderTransform>

                <Border.Projection>
                    <PlaneProjection RotationY="45"/>
                </Border.Projection>

                <Image Source="bw-test-pattern.jpg" Width="150" Height="120"/>
            </Border>

    </Canvas>
</UserControl>

因此,如果有人能够解释为什么会发生这种情况,我将非常感激。也欢迎提出建议! :)

**更新**

只是澄清一下,如果投影平面旋转为0,图像就会变得不模糊,因此只有在旋转期间图像才会模糊。

Ok,

So I've tried to make an application which relies on images being scaled by an individual factor. These images are then able to be turned over, but the use of an animation working on the ProjectionPlane rotation.

The problem comes around when an image is both scaled and rotated. For some reason it starts bluring, where a non scaled image doesn't blur.

Also, if you look at the example image below (top is scaled and rotated, bottom is rotated) the projection of the top one doesn't even seem right. Its too horizontal.

http://img43.imageshack.us/img43/5923/testimages.png http://img43.imageshack.us/img43/5923/testimages.png

This this the code for the test app:

<UserControl x:Class="SilverlightApplication1.Page"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    Width="400" Height="300">
    <Canvas x:Name="LayoutRoot" Background="White">

            <Border Canvas.Top="25" Canvas.Left="50">

                <Border.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="3" ScaleY="3" />
                    </TransformGroup>
                </Border.RenderTransform>

                <Border.Projection>
                    <PlaneProjection RotationY="45"/>
                </Border.Projection>

                <Image Source="bw-test-pattern.jpg" Width="50" Height="40"/>
            </Border>

            <Border Canvas.Top="150" Canvas.Left="50">
                <Border.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="1" ScaleY="1" />
                    </TransformGroup>
                </Border.RenderTransform>

                <Border.Projection>
                    <PlaneProjection RotationY="45"/>
                </Border.Projection>

                <Image Source="bw-test-pattern.jpg" Width="150" Height="120"/>
            </Border>

    </Canvas>
</UserControl>

So if anyone could possible shed any light on why this may be happening, I'd very much appreciate it. Suggestions also welcome! :)

** Update **

Just to clarify, if the projection plane rotation is 0, the image becomes un-blurred, so its only during the rotation that the image is blurred.

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评论(2

不语却知心 2024-09-01 06:41:52

顶部图像的宽度设置为 50,高度设置为 40。因此它被缩小了。然后将其放大到正确的尺寸 150、120。我猜 Silverlight 会缩小图像,并且由于性能优化而不会存储原始尺寸。保留缩放并为第一张图像设置正确的宽度和高度。

The top image's width is set to 50 and the height to 40. So it is downscaled. Afterwards you scale it up to the right size 150, 120. I guess Silverlight scales the image down and doesn't store the original size due to performance optmization. Leave the Scale out and set the right width and height for the first image.

安穩 2024-09-01 06:41:52

看起来顶部图像在绘制时正在被过滤。从您的代码中您可以得到:

<Image Source="bw-test-pattern.jpg" Width="50" Height="40"/>

顶部图像和

<Image Source="bw-test-pattern.jpg" Width="150" Height="120"/>

底部图像。您有不同的图像尺寸,因此顶部的图像可能会被放大,因此在插入丢失的像素时会变得模糊。

我不熟悉 silverlight,所以我不知道如何控制过滤选项,但将上面的第一行设置为与底部的行相同可能会修复它。

It looks like the top image is being filtered as it is being drawn. From your code you have:

<Image Source="bw-test-pattern.jpg" Width="50" Height="40"/>

for the top image and

<Image Source="bw-test-pattern.jpg" Width="150" Height="120"/>

for the bottom one. You have different image sizes so the top one might be being upscaled and therefore blurred as it interpolates the missing pixels.

I'm not familiar with silverlight so I don't know how you'd control the filtering options, but setting the top line above to the same as the bottom one might fix it.

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