VR : Eevee EquiRectangular / Cycles EquiAngular Cubemap (google)

I am currently working on 360 productions, and there are a couple of things that would greatly improve render times / workflow.

First of all, Youtube (Google) has been using its own EquiAngular cubemaps (EAC) for its 360 videos for a while. It has the benefit of being more optimized regarding pixel count vs distortion. see : blog.google/products/google-vr/bringing-pixels-front-and-center-vr-video/ Having this option available at render time would mean one less post-render conversion and better quality upon upload. The conversion (equirectangular to EAC) is not yet available in After Effects, but my company made a plugin for this purpose, we can be contacted by developpers if help is needed to port this to blender.

Another thing would be the ability to render VR directly with Eevee. Right now the only workaround is to render with 6 square cameras with a 90° FOV, make a cubemap out of those, convert to equirectangular, and then convert to equiangular. Quite a lot of conversion which makes the time saved by eevee's speed, lost during post conversions (and quality is lost at every step) And from my tests, I have noticed that with this technique, there are seams that are visible between the cameras, this is probably due to eevee's way of handling lights/shadows etc that are screen dependent. So in the end it might simply be impossible to use eevee this way...