wpf - 使用 WebBrowser 控件时 IE 11 WebGL 性能变慢

Question

我正在尝试将 Cesium 嵌入 WinForms 或 WPF 应用程序(使用 IE 11)内的 WebBrowser 控件中。作为测试，我正在使用此链接:

http://cesiumjs.org/Cesium/Build/Apps/CesiumViewer/index.html?stats=true

它“有效”，但比直接使用 IE 11 慢得多。在 IE 11 中，一切都以 60fps 的速度运行；在带有 WebBrowser 控件的简单 WPF 或 WinForms 应用程序中，它以 4-6 fps 的速度运行。我一直无法找到问题的原因。这是一个空白的表单或 WPF 面板，其中 WebBrowser 控件设置为填充整个 Pane 。没有我可以想象的透明度或其他问题。我注意到转到 Visual Studio 嵌入式浏览器中的上述链接具有相同的效果。 WebBrowser 控制不是 JIT JavaScript？这是 WebGL 问题吗？有没有办法可以调试它以弄清楚发生了什么？任何帮助将不胜感激。

Answer 1

看看这个article :

As it turns out, the embedded browser uses the IE7 rendering engine bydefault, even if a newer version of IE is installed. Also, GPUrendering is switched off, so the browser uses software renderingonly.

This was fixed by setting the following feature control registry keys:

• FEATURE_BROWSER_EMULATION – set to the desired version of the IErendering engine
• FEATURE_GPU_RENDERING – set to 1 to enable GPUrendering.

These keys can be set under HKEY_LOCAL_MACHINE orHKEY_CURRENT_USER for a specific program (executable name), which usesthe embedded browser. HKCU is preferred since the program won’t needadministrator privileges to write to HKCU.

So when I set FEATURE_BROWSER_EMULATION to 10000 (for IE10) and setFEATURE_GPU_RENDERING to 1, the performance improved to ~850 fishies @60 fps. Still not as good as standalone IE with its 1000+ fishies, butquite an improvement!