My teammates and I had the idea of creating an android application that has 3D functionality. none of us had ever done 3d graphics before, so we decided to leave it for the final stage. So I got it. At the moment we have a java application written in android studio. now, more specifically, we want to implement the creation of our character, as for example it is possible in the new Instagram avatars feature, or I think you've seen something similar for creating emoticons with your face on iPhones. So, we know that there are such java solutions as jMonkeyEngine or libGDX, but they have their own frameworks, as I said earlier, in addition to 3D, we have written all the functionality in android studio. Therefore, now we are in despair and do not know what to do, maybe we can somehow use the functions of other engines in android studio, or there are options for transferring the application to other frameworks without losing part of the functionality.
I will be as grateful as possible for any help