Opamp77
June 14, 2016, 8:06pm
4
Has anyone used the new Planar Reflections feature (from 4.12) on an HMD yet?
I know it’s probably not recommended as Planar Reflections essentially render the scene twice but I would like to use them in a VR project I’m working on and have found an issue with it.
The good news is - they do render properly and look fantastic. The bad news is - they don’t lock to the rest of the material when the headset’s in motion. It seems the geometry they are rendered on (in my case a lake reflecting some terrain) does lock to the HMD and update at 75fps (on a DK2) but the reflection texture seems to slide around when there’s any motion on the headset. This ruins the immersion unless the head’s perfectly still.
Planar Reflections are extremely new and are probably a work in progress but I was wondering if anyone else had noticed this issue / has a workaround or any of the Epic staff know whether or not this is something that will be resolved in a later version?
I’m on 4.12.2 and using a DK2 with the 1.4 SDK.
Thanks
it looks like they have yet to implement a late update on the render thread for the planar reflection camera which is causing the discrepancy in latency when you move your head. I hope that they look into sorting this out as I have scene’s that can definately use PA and still hit framerate.