After years of creating VR projects with UE4, we’re running into very low frame rates with a fresh project using 4.26.
Testing hardware includes machines with 1080Ti and 2080, Cosmos and Cosmos Pro headsets. Normally we’d get at least fps in the 70-80 range in VR before a build. Currently we’re seeing 5 - 20, upwards to 30-40 with an essentially empty map.
Map includes a path with camera, some landscape (without landscape fps is low 30s-40s). Default sky sphere (which seems make a 10-15 frame drop too), and some static meshes with minimal affect of fps.
I did a quick test between 4.24, 4.25, and 4.26 using Epic’s advanced race car project. Essentially the same project created in each of the UE4 engine versions. Both 4.24 and 4.25 show 70-80 fps in VR. But with 4.26, fps drops to about 40. Also there seems to be some issues with StreamVR having to restart whenever a 4.26 project is launched.
We’re curious if anyone else is having similar issues, and if so, if you have pin pointed the cause of the issues. Thanks for any help and info!