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• #22801 Raymond félisten

  Új Válasz 2019-09-26 21:07:39 #22801

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  Raymond

  félisten

  Csinaltam par jegyzetet Carmack eloadasa alatt, itt van ha erdekel valakit es nem akarja azt a masfel orat vegignezni, de en melegen ajanlom, nagy feludules ez a tomeny infoaradat

  A jegyzetek angolul vannak, de azt hiszem azert a gugli megbirkozik vele ha valakinek nagyon kell magyarul.

  - Oculus Link - limited on the video codec at 150Mbps, well enough bandw on usb3
  - Oculsu Link - on the mobile side one layer less through oculus solution due to lower level access
  - Carmack wants to be able to put custom microcode on the venus decoder (qualcomm) for lower latency - could be better than Rift S on photon to motion latency
  - Carmack - "we know we want wifi support" :D
  - Oculus Link - stream compressed to 150Mbps, slighly higher latency than Rift S, but still better than other solutions
  - Oculus Link - relatively simple implementation - it's treating the Quest as a Rift plugged into the PC, could be better with direct display solution
  - Eulogy for GearVR! Not going to be available on future Samsung phones, Carmack talks a lot about past GearVR and work on it, fond memories and some thing that didn't work out
  - Media solutions on GearVR (and Go) still frustrates him because of lack of progress, this is the same complaint as last year
  - There is a prototype GearVR with large lenses and FOV for the biggest Note devices, never released
  - Carmack doesn't like HMD plugged into a separate phone/box/puck solutions, prefers an all-in-one
  - Carmack wants eventually to have all GearVR/Go apps to be availabe on Quest, is a big fan of archiving and preservation and does not want all the experiences created in the early days of VR to disappear
  - Quest internally was at the beginning all about roomscale, this turned out be overly ambitious because people don't have the space usually and most experiences are OK with limited space for movement
  - Walking around in large space for sake of walking around is not great game design
  - Carmack seems to really like Red Matter, a lot of praise for the game in general
  - Too many games use high FFR levels, devs shoudln't do that! Especially not fixed for the whole scene or even game when it can be changed from frame to frame
  - Music and audio is very important and one of the best things to do in VR (Raymond - what about Quest audio then??)
  - Developers should use more haptics (combine visual/audio/haptics) to improve the feeling of presence
  - Carmack hates long load times, has abandoned games that have long load times in the past
  - Game curation is a hot topic internally again so rules may be relaxed or tweaked at least for more contect to be available on the store. Some people are for highly curated HQ content, Carmack is more the wild west type
  - With the Go compatibility there is quasi a backdoor now to get the game to Quest users, the games can have Quest features built-in and activated when running on Quest. Will not get any exposure on teh Quest store, but better than nothing.
  - Non VR apps - some launchers available to get them there, Netflix, Hulu, Amazon available for video and almost all 3D movies will be available (through Fandango)
  - Downloading videos is back in Oculus Video (already?)
  - General purpose DRM almost sorted out for the Oculus web browser so content from large media companies will be available in future through that
  - A lot of media apps available and almost none have everything right (layers, scale, etc.), could be improved with a common component available through the browser and/or OS/SDK functions and have the apps as a thin wrapper only
  - Looking at Miracast or streaming through a USB cable, more options for settings for streaming and recording on the device itself (resolution, bitrate etc.)
  - Carmack gives a lot of praise for Virtual Desktop for doing all the things right and quickly implementing new features available on the platform
  - Quest/Go needs local file management which it does not have at the moment
  - Use the UserVoice site for suggestions and voting!
  - Hardware challenges and future - missed some 10-15 min here, too little structure to take usable notes :)
  - Go and Rift S displays can theoretically run at 90Hz, but has temperature problems (needs to heat up) so the team decided to keep it lower
  - Quest displays can run at 90Hz, uses 72Hz as compromise for the SoC. For Oculus Link it could run the display at 90Hz, but it would void FCC certification for the product so won't happen
  - Higher resolution displays are coming eventually, they are available today from vendors, can be driven with current products/SoC for media
  - FoV - peope mostly don't appreciate the tradeoffs, eve smaller FoV increases need disproportionally higher processing power
  - Lot of tradeoffs on lenses regarding sweet spot, glare, magnification levels etc.
  - Carmack likes the Quest and Rift S audio (Raymond - this explains the question from earlier)
  - BT headphones - maybe will be an option, but not in the current product, the high latency was/is the issue
  - IPD adjustment - looking at different and more precise implementations for future
  - SoC choice - lot of experience with the Qualcomm chips now, so will be closer to bleeding edge in the future and not use that outdated chipsets
  - Custom silicon - the pipeline is too long to implement, software changes and evolves quicker than making hardware choices for custom chips years in the future
  - DSP in the Snapdragon - this allows the hand tracking implementation without majorly impacting general CPU work
  - Tensor accelerators will be used expentively in the future because suited well for the computer vision problems
  - RAM - was overpromised at 2.75GB, devs are getting less, but Oculus is optimizing OS and internal systems to reduce their footprint and free up RAM for devs to use
  - Multitasking is coming in the future so more free RAM for devs is definitely needed
  - Power management - battery size/weight is a huge tradeoff, options to have battery at the back of the strap still looked at
  - USB sticks draw suprisingly lot of power
  - OS is Android so a lot of things just work when plugged in (controllers, keyboards etc.)
  - WiFi streaming - signal quality is questionable in real life so quality can't be guaranteed
  - WiFi streaming - could make a dongle with custom firmware to get around some standard AP limitations and get great streaming experience
  - Cameras - Qualcomm has products supporting 12 cameras - not the best direction to be going and fill the HMD with cameras, better to work on IK combined with controller tracking
  - Tracking - still possible to improve picking up tracking after it has been lost to have it in fewer frames, right now it takes a couple to pick up the controller again, could be done in as little as one frame
  - Hand tracking - currently has 80ms+ latency compared to controllers so it's visibly delayed
  - Eye tracking and Face tracking - still no 100% solution for foveated rendering when eye tracked, there are noticeable delays and visible image quality quality changes

  Privat velemeny - keretik nem megkovezni...

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