Duration: 1:43

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I'm trying Kayak VR with the VRperfkit mod and the Fixed Foveated Rendering method (FFR) (for NVIDIA Turing GPU and beyond) (I don't think it works with other GPU vendors) and it's quite a miracle in performance improvements ! (look at the Steam VR performance graph at the bottom left of the video when I deactivate it) About +80% with this configuration for only a slight visual quality downgrade when not looking at the center of the image.

This mod won't work with absolutely every VR games though.

For this game the compatibility is OK, I had to remove the outer FFR ring because it would not display properly and the canyon map seems to have some problems, otherwise it's perfect.

On a side note, as shown in the video, activating DLSS seems worsen the image quality a little and remove a lot of the performance gains. I wonder why it's not a positive thing from the couple of games I could test it with in VR..

VR Performance Toolkit : https://github.com/fholger/vrperfkit

Timestamps:
0:00 Trying Kayak VR with the mod and FFR
0:20 Boss fight !
0:31 Deactivating FFR (from good performance headroom to stuttering)
1:00 DLSS = bad ?