问题：（错误在VRIntegrationHelper.cs脚本中）
error CS1061: Type `UnityEngine.Camera' does not contain a definition for `SetStereoProjectionMatrices' and no extension method `SetStereoProjectionMatrices' of type `UnityEngine.Camera' could be found. Are you missing an assembly reference?
解决方法（使用SetStereoProjectionMatrix替代SetStereoProjectionMatrices）：
原来的代码：
mLeftCamera.SetStereoProjectionMatrices(mLeftCamera.projectionMatrix, mRightCamera.projectionMatrix);
mRightCamera.SetStereoProjectionMatrices(mLeftCamera.projectionMatrix, mRightCamera.projectionMatrix);
修改后的代码：
mLeftCamera.SetStereoProjectionMatrix(Camera.StereoscopicEye.Left, mRightCamera.projectionMatrix);
mRightCamera.SetStereoProjectionMatrix(Camera.StereoscopicEye.Right, mRightCamera.projectionMatrix);