right, that was my first and original question in my OP. I haven’t found any info online on how to retarget a metahuman face to a custom face with different bones. Like you can easily do with body performance retargets. So I came here asking if anyone could point me in the right direction on how to do that exactly. I’ve seen stuff on how to use a custom mesh on a metahuman but that is not what I want.
I also did export my metahuman as an fbx to bring into Maya with my Maya riig. But with default options the export is all sorts of messed up. works about 80% of the time, but gets all wrinkly when doing expressions and every few seconds the mesh gets all completely mangled, like scaling in on itself randomly.
Thanks again for the help.
Edit: I am seeing there is a tool or asset in the Metahuman sample project that can convert ARkit blendshapes to rigs designed with ARkit. Which I believe is what you were alluding to in your original response. It does seem this custom rig was designed for ARkit plus additional blendshapes on top. So I will be checking out that route.