Rift - Access individual cameras

hi guys,

i'm currently working on a VR-Scene with a waterplane like from the integrated unity-water. Problem is that the seperat rendered reflection & refraction cameras are only rendered once, so the reflection & refraction aren't stereoscopic, which looks bad. With Unity4 Rift plugin i could access the seperate cameras and do what i want but with unity5's integrated VR-System this feature is gone.
Anyone knows a workaround? i'd need access to the individual transforms and culling masks of left & right camera.

 

wow.... just wasted 7 hours fighting through shaders and reflection scripts to create multiple reflection cameras and make the shader use the reflection camera which is closer to CamerWorldPosition and so on, trying to find a workaround... and then i realized that there's a "Target Eye" setting on the camera that makes it possible to assign individual cameras to every eye... fixes all problems at once, damn it!