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Okay, I can understand that G3D is really demanding mode, but what I don’t get is why when I play with graphics settings without G3D, performance changes accordingly, but with G3D there are almost no impact: 1-5 FPS from lowest to highest graphics settings, that’s all. It seems that there’s some kind of bottleneck with G3D. I wonder, what is it? CPU?
It’s strange… Everyone says about performance improvements since update, while I have severe performance impact. I have GTX960, 8GB DRAM. For example, Crysis 3 runs up to 100 fps on High settings without VorpX, and I had just about 20-30% performance impact while using VorpX 0.8.0.1 with Oculus Runtime 0.6.0.1 (Extended Mode). But after update the game runs just on ~15-20 FPS, and even lowering graphics settings to lowest doesn’t help at all! It seems that main problem is Geometry 3D mode: after I’ve switched it off to Z-buffer, performance got up to 30FPS on high settings and started to react to changing graphic settings adequately. What’s worse, same issue remains even with pretty old games with Geometry-3D support, like Mirror’s Edge: prior to 0.9.0 update the game used to run extremely fast: 120 FPS and higher with Geometry-3D activated, but now it runs 20-30 FPS only. Async Rendering set on “half” helps though, but it still doesn’t give even 75 FPS except disabling Geometry-3D which bumps it to 150+ FPS. I’ve tried Oculus Runtime 0.6.0, 0.7.0 and 0.8.0.0, updated NVidia driver to 358.78, tried to recover it back to official stable 358.50 – and I can confidently say that’s not the cause.