Oculus Rift - Render to texture or lower resolution

Hey here,

I'm currently experimenting with some visuals and I would like to give a game a very retro look, and among other things I would like to get very noticiable jaggy borders (I know this probably goes against the standard guidelines but I want to give it a try and see how it looks).

In none vr mode I would render to a texture (lowering the resolution) or simply decrease the resolution in the player settings, but how would I go about it with an VR-Oculus project?

I have searched for both, rendering to a texture or decreasing the resolution, but I haven't found anything relevant.

Thanks!