How to show 2 camera preview side by side?[For cardboard apps]

Question

I am trying to build a Cardboard android application that shows 2 camera view side by side. [Just like the camera view works for VRCinema Android app.]

Answer 1

Basically you need to draw the camera into an OpenGL texture and show the texture.

I wrote two versions of this here, feel free to modify the code and add pull requests: https://github.com/Sveder/CardboardPassthrough