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# Metaverse reading list | |
## Society | |
Standards collaboration and governance | |
- Patents: protection, licensing | |
- Brands and trademarks | |
- Limited liability and warranty | |
- Consensus, competition, and conflicting goals | |
- Standards development processes |
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#!/bin/sh | |
# `adb` commands to call for capturing high-res videos on Oculus VR headsets | |
# | |
# Usage: | |
# | |
# curl https://gist.githubusercontent.com/cvan/54535a41db8a67d0370971f6e393675d/raw/c2183adf4bf0e85edc422a13599eba54e62ee473/video-setprop.sh > /tmp/oculusvr-video-setup.sh | |
# chmod +x /tmp/oculusvr-video-setup.sh | |
# ./tmp/oculusvr-video-setup.sh | |
# |
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// Each value can be set independently meaning you can change resolution without changing FPS and vice versa | |
// we default to(1024x1024 @ 60fps w/ 5000000 bitrate (5Mbps) in the absence of setprops | |
adb shell setprop debug.oculus.capture.width 1920 | |
adb shell setprop debug.oculus.capture.height 1080 | |
adb shell setprop debug.oculus.capture.fps 30 | |
adb shell setprop debug.oculus.capture.bitrate 10000000 | |
// You probably want to change the FOV to match the 1080p resolution as well: | |
adb shell setprop debug.oculus.eyeFovDown 39 | |
adb shell setprop debug.oculus.eyeFovUp 38 | |
adb shell setprop debug.oculus.eyeFovOutward 50 |
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |