I'm confused that the window check box "photoshop live 3d" is missing in AE CS6.. then how will we import a 3ds/obj (psd) with its 3d property?
You don't. This functionality has been removed. Whether it will come back in CS7 or in what form nobody can tell at this point. Buy Element 3D, AtomKraft or any other 3D plug-in, if that is really so important to you.
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