For a project I'm currently working on, I'm receiving the panoramic render in dual mode as well(top for the left eye, bottom for the right eye). However, when I tried to implement this into the project, I was unable to get it running properly. After doing a bit of investigating, I found out this was happening because of the following...

index.js:49 if (isValidGeometry && this.material_is_a_video) {

If I removed && this.material_is_a_video, everything seemed to be working fine, but of course, now existing images will be broken, so this would likely require a bit of refactoring to get this working correctly.

Now, before doing a PR for this, I was wondering if there is a specific reason why images can't be split up at all?