General bad Oculus Rift performance in Unreal Engine 4

[8Infinite8]

@PatimPatam;139876

Ok i’ll repost a mix of tips i learned from aussieburger, spyro and others in case some people missed them:

• In order to have good performance while developing (without having to close the editor):

  1. Editor Preferences -> Miscellaneous -> Performance -> Tick “Use Less CPU when in Background”
  2. When launching the app, press the little Arrow next to Play and select “Standalone Game”
  3. While the game is loading Minimize the UE4 editor
  4. Once the game has loaded in it’s window press Alt+Enter

At least on my machine i get exactly the same fps as running the game from outside the editor or packaged.

• If using Direct Mode, disable mirroring to gain A LOT of performance back (about 20 fps more for me)!

  1. Launch game
  2. Bring up the console
  3. Type “hmd mirror off”

  (you can also set via Blueprints)

• If using Direct Mode, setting Screen Percentage (hmd sp) manually while in-game freezes the App, BUT it does work if you set it via a Blueprints:

  Use “Execute Console Command” (hmd sp XXX) after “Event Begin Play”.

• Direct Mode (without mirroring) seems to have less latency and about 15 fps better performance for me than Extended mode.

R9-290, using the “VR First Person Template” in Direct Mode, with “Shadow Quality=2”, “Anti-Aliasing=6” and “Screen Percentage=160” (rendering internally at 3072 x 1728), i get between 80 and 100 fps (locked at 75 with vsync on).

Have fun!

Thanks very much for the break down, most appreciated. I’ve tried all that apart from the blue prints tip. Not sure how to do this “Use “Execute Console Command” (hmd sp XXX) after “Event Begin Play”.”

Being able to set the screen percentage will surely solve the low FPS problem. If I can some how set hmd sp xxx