HTC Vive打包的UE4游戏全屏，铺满窗口的方法

未修改前，打包的游戏窗口两边会有黑边，修改后可以让游戏内容铺满窗口

要求使用源码版本的引擎打包

定位到Engine\Plugins\Runtime\Steam\SteamVR\Source\SteamVR\Private\SteamVRFunctionLibrary.cpp

将

<pre name="code" class="cpp">RendererModule->DrawRectangle( RHICmdList, ViewportWidth / 4, 0, ViewportWidth / 2, ViewportHeight,
0.1f, 0.2f, 0.3f, 0.6f, FIntPoint(ViewportWidth, ViewportHeight), FIntPoint(1, 1),
*VertexShader, EDRF_Default);

改为

RendererModule->DrawRectangle( RHICmdList, 0, 0, ViewportWidth, ViewportHeight,
0.0f, 0.3f, 0.4f, 0.4f, FIntPoint(ViewportWidth, ViewportHeight), FIntPoint(1, 1),
*VertexShader, EDRF_Default);

编译打包项目即可。