Lowering frame rate I could get it to play. Any idea why the GPU doesn't kick in to do any decoding? I tried selecting the hardware decoders in the preferences without any difference. GPU 3D shows being used but not the decoder, if it is supposed to. Even without a headset attached, just running the Studio player in playback, the CPU is pegged at 100%. This is with an I5-7400 and 2060 GTX.
To be clear playback of the created MP4 pegs CPU at 100% on Studio playback or any VR playback package I have tried. Playing the insv files back on Studio barely uses CPU at all.
Further, I can tell, with an MP4 movie download, I can start it in MPC and see it is H264 and is using GPU decode. In MPC I can also start the H264 MP4 video created by Studio and it pegs the CPU at 100% and it doesn't use GPU for decoding.
Edit: Solved. You had mentioned to try lower resolution as well. I just did that, down to 4K and now GPU Decoder kicks in. Studio looks like it encodes in H264 and it looks like maximum H264 hardware can decode is 4K. Setting resolution to 4K gives smooth playback and utilizes GPU.
Edit2: Thought I would go ahead and try Adobe for 265 encoding at the higher resolution. From a sample file, I couldn't see any improvement, and perhaps worse than the 264 file, and it was more jittery jumping to 100% cpu, though I could see from perf monitor that the GPU was doing some decoding. Its working on a bigger file now and I will see how it looks. Over 2 hours to encode 4 minute file. I could try the add on mentioned in this thread if I want to try faster GPU encoding. But right now, I don't see an advantage using 5K 265 vs 4K 264 for viewing back in VR headset.
Last edited by RonBonnell; 06-15-2019 at 11:57 AM.