Forum Discussion
5.1.2p2 - lots of VR fixes
I just noticed the 5.1.2p2 patch is out with lots of fixes. Downloading now: http://unity3d.com/unity/qa/patch-releases Improvements VR: Added an option to allow Cameras to render specifi...
I think the potential benefit of using 3 camera approach (1 main both-eye camera for main rendering + 2 separate eye cameras for overlays/effects) is you gain the optimizations Unity/Oculus did for single camera VR (shadow maps rendered once, etc.) for main scene/object rendering, but still maintain the ability to do per-eye effects as an overlay.
A simple example of this is a movie theater application. The 3d movie theater is rendered to the both-eye camera, and the 3d movie file/stream presented on the virtual screen is rendered to left and right eyes separately. This allows sending correct images from a 3d movie to the correct eye. You could also accomplish this with a 2 camera setup, but you would lose some of the benefits Unity/Oculus added in for the shared both-eye camera for the main scene rendering.
ccs
A simple example of this is a movie theater application. The 3d movie theater is rendered to the both-eye camera, and the 3d movie file/stream presented on the virtual screen is rendered to left and right eyes separately. This allows sending correct images from a 3d movie to the correct eye. You could also accomplish this with a 2 camera setup, but you would lose some of the benefits Unity/Oculus added in for the shared both-eye camera for the main scene rendering.
ccs