I have created the usual planet earth using cc sphere. The effect I am after is the earth stops rotating and starts turning in the opposite way showing the inside of the solid earth (similar to cutting a solid sphere in half).
I have managed to use cc split 2 and cut the earth in half but cannot get the half solid sphere effect.
CC Sphere is designed to show the interior or the exterior or both, but from the front only. It's not a 3D effect. By rotating the sphere, you only change which portion of the sphere you see from the front. If you turn a CC Sphere layer into a 3D layer, then rotate the layer, you can see how it looks 3D from the front only.
To do what you want, you'd have to use a 3D application, or perhaps Freeform, which now comes bundled with AE.
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Zaxwerks Invigorator Pro can be used in AE to import 3D models and animate them. It can allow for some texturing and lighting as well. You would have to create the half earth and texture that in some other 3D app or maybe even using PSD.