Could 3D work with a cartoon?

[Rostum]

Probably not. One of the keys to suspension of disbelief in animation is not mixing animation styles.

Either that, or you're going to fall into the uncanny valley somewhere.

Wrong.

There's so much mixed media out there!

Even the latest traditional hand drawn Disney film 'Princess and the Frog' used CGI, and many beautiful traditionally animated feature films before it. This does not break the suspsenion of disbelief.

Also, I don't believe this falls into the uncanny valley. Do you even know what that is? Perhaps you should consider looking at Beoulve, Spirits Within and Polar Express for some examples. It has nothing to do with mixing styles or mediums.

Edit:

And you're talking about actual 3D viewing for a traditional animation? I was under the impression you were talking about mixed media. Hmm... It can certainly be done. I can't think of any examples off the top of my head though. I don't really see the point of it though. Then again, I don't really see the point of 3D viewing in general.