Just got a hold of UE4 and went straight into trialing with the Rift, using the Reflections demo, VR demo, and even just the default 2 chairs level. I’m also having some serious frame rate issues and was keen to get to the bottom of it.
I’ve got a somewhat low-end card, a GTX 650, with a pretty high end PC and while I run at 65 fps in editor for the VR demo, once running full screen Rift mode, its maybe 20fps or so, very choppy/laggy. All settings are down to minimum in Quick Settings.
I figure I must still be missing something, as this is a simple, single room with one statue in it. Same for the 2 chairs, there’s nothing special going on but they both run very slowly. This concerns me, since if lower end users can’t run a Rift game at minimum settings at 60+ fps, there’s little hope they’ll be able to when CV1 goes > HD resolution. Any tips or things to look out for that I might have missed in terms of optimization?
For comparison, all demos I’ve used with this rig have run fine (some slower on max settings). I currently use Unity and I’m getting over 65 fps in some fairly complex scenes, and I assumed that UE4 would be quicker, if not just the same speed. I really love the graphics engine, editor, blueprint, price etc, but if I can’t figure out why my frame rate is so terrible I’ll have to stick with Unity (which isn’t terrible, but I thought Unreal would suit much better what I’m doing).