// OnPreRender is called once per camera each frame
void OnPreRender()
{
// on pre render is where projection matrix and pixel rect are set up correctly (for each camera individually)
// so we use this to acquire this data.
if (IsLeft && !mLeftCameraDataAcquired)
{
// at start matrix can be undefined
if (!VuforiaRuntimeUtilities.MatrixIsNaN(mLeftCamera.projectionMatrix))
{
mLeftCameraMatrixOriginal = mLeftCamera.projectionMatrix;
mLeftCameraPixelRect = mLeftCamera.pixelRect;
mLeftCameraDataAcquired = true;
}
}
else if (!mRightCameraDataAcquired)
{
// at start matrix can be undefined
if (!VuforiaRuntimeUtilities.MatrixIsNaN(mRightCamera.projectionMatrix))
{
mRightCameraMatrixOriginal = mRightCamera.projectionMatrix;
mRightCameraPixelRect = mRightCamera.pixelRect;
mRightCameraDataAcquired = true;
}
}
}
