3D glass text shatter Question

You would need to precompose your 3d text and apply shatter to the precomp.

It won't look good though. You'll lose all the refractive qualities you were just enjoying. Now, you could use normal AE tricks to fake the glass look (using CC Glass, for example) on a shattering layer and skip the ray-traced renderer entirely.

If you have CC, a better solution might be to create your text in Cinema 4d (which comes free with AE) and do the work there.

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.

If you have CC, the ray traced renderer isn't really a thing anymore. I mean, it's still there, but the direction they went with creating 3d stuff in AE is Cinema 4D and it's practically better in almost every way, except that you have to jump back and forth. If you want to use it and it works for you, then that's awesome, but I'm not sure tutorials for it are really going to be of interest for many people.

I'm not saying you shouldn't do what you're passionate about and if this is what you want to do, keep doing it. I'm only mentioning this to encourage you to think about what your viewers might want.