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首先说明下：这种错误只在Unity3D发生，不会在打包的游戏中发生。
官方解释：
To reproduce:
1. Create a camera with Clear Flags set to "Depth Only" or "Don‘t Clear"
2. Attach an image effect to the camera
3. Set the game window scale to 16:9
4. Enter game mode. Try resizing the game window
5. "rect[2] == rt->GetGLWidth() && rect[3] == rt->GetGLHeight()" appears in the console
Does not occur with version 4.2.2f1
Seems to be related mostly to the aspect ration of the game view and the image effects.
does not occur if game view is undocked
大概是说
1。创建一个相机设置为"Depth Only"或"Don‘t Clear"
2。附加摄像机的图像效果
3。游戏窗口范围设置为16:9
4。进入游戏模式。调整游戏窗口
解决方法：
在game面板中分辨率调成free，也许会好。。- -
或许 目前临时的解决方法是，将Editor的布局Layout改回默认设置，错误信息将不再出现。
Unity3D中中 rect[2] == rt->GetGLWidth() && rect[3] == rt->GetGLHeight()错误的原因及解决方法
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原文地址：http://www.cnblogs.com/dawn-cn/p/4218603.html
