zlsa's recent activity

  1. Comment on Half-Life: Alyx review (spoiler-free): The greatest VR adventure game yet—and then some in ~games

    zlsa
    Link Parent
    I've used both Link (tethered to a PC with a 5-meter USB-C cable) and Virtual Desktop (a WiFi streaming solution), and Link is far better IMO. Virtual Desktop has persistent latency issues, making...

    I've used both Link (tethered to a PC with a 5-meter USB-C cable) and Virtual Desktop (a WiFi streaming solution), and Link is far better IMO. Virtual Desktop has persistent latency issues, making your hands in-game lag behind your real-life hands, making them feel rubbery and inconsistent. (There was a very recent Virtual Desktop update to reduce motion-to-photon latency even further; however, I haven't had a chance to try this yet.)

    And yes, Quest tracking is very very good. (It uses the same fundamental system as the Oculus Rift S, just with one less camera and a different camera layout.) However, any streaming solution (including Link and Virtual Desktop) won't be as high-fidelity as playing on a dedicated PCVR headset, like a WMR headset or the Oculus Rift S. There is always some degree of additional latency and video compression artifacts. While these are easily tolerable with the Link cable, I wouldn't say the quality is equal to that of a dedicated PCVR headset.

    Also, price is a factor: with the base-model Oculus Quest ($400 USD) plus the official USB-C Oculus Link cable ($80 USD, highly recommended for its flexibility and length), you're paying $130 USD more than the Rift S ($350 USD). If you only plan on playing PCVR, I strongly recommend against the Quest; but if you ever want to play standalone (i.e. somewhere where you don't have a PC), the Quest is the only viable option.

    2 votes
  2. Comment on Formula 1 Australian Grand Prix has been cancelled in ~sports

    zlsa
    Link
    It's been a crazy 24 hours in the runup to the Australian GP weekend, with McLaren pulling out after a team member tested positive for COVID-19, rumors going back and forth about the race being...

    It's been a crazy 24 hours in the runup to the Australian GP weekend, with McLaren pulling out after a team member tested positive for COVID-19, rumors going back and forth about the race being cancelled (including not letting spectators enter the stands for today's practice session,) reports of multiple drivers flying home, and finally an official cancellation. Check out the recent posts in r/Formula1 to see the scope of the situation (and this meme.)

    (Today was due to be a practice session, with qualifying on Saturday and the race itself on Sunday.)

    5 votes
  3. Comment on SpaceX launches final Dragon 1 mission to the ISS in ~space

    zlsa
    Link
    The recent launch of the CRS-20 ISS resupply mission for NASA is the last flight of the SpaceX Dragon 1 capsule. The specific Dragon capsule flying on this flight has already been to the ISS twice...

    The recent launch of the CRS-20 ISS resupply mission for NASA is the last flight of the SpaceX Dragon 1 capsule. The specific Dragon capsule flying on this flight has already been to the ISS twice before; on the CRS-10 and CRS-16 missions.

    SpaceX's next cargo flight to the ISS is CRS-21 in October, and will be flown with Dragon 2 (which has flown in the crew variant as DM-1.)

    The first-stage booster landing is the 50th successful landing by SpaceX (and would have been the 51st had the previous landing been successful; alas, due to faulty wind data, the booster intentionally diverted into the ocean to protect the droneship.) The trajectory of the launch (and booster return to launch site, or RTLS) can be clearly seen in this awesome photo. (You can even see the 1-3-1 engine transition in the entry burn.)

    3 votes
  4. Comment on What creative projects have you been working on? in ~creative

    zlsa
    Link
    I've been designing a 3D-printable model of a rocket (not a model rocket; this is just a mostly-accurate detailed replica, not a flyable model rocket.) One of my goals is to make the entire model...

    I've been designing a 3D-printable model of a rocket (not a model rocket; this is just a mostly-accurate detailed replica, not a flyable model rocket.) One of my goals is to make the entire model 3D-printable with a consumer-grade 3D printer, so anybody can build one at home. This leads to some inevitable parts where realism just can't be maintained (as the resolution of consumer FDM printers isn't high enough to allow for a perfect replica.) So I'm ending up spending a lot of time trying to keep the model as realistic as possible, while making sure it's still printable on normal 3D printers.

    It's a fun challenge, and I love the fast iteration time 3D printers can deliver: ~two hours from a CAD model to holding it in your hands.

    4 votes
  5. Comment on Half-Life: Alyx - 9 Minutes of Gameplay in ~games

    zlsa
    Link Parent
    That video made me nauseous, and I've had no problems even with smooth locomotion from day one. VR recordings always look like that; the video looks super shaky because the tracking captures every...

    That video made me nauseous, and I've had no problems even with smooth locomotion from day one. VR recordings always look like that; the video looks super shaky because the tracking captures every movement of your head. Being in a VR game looks nothing like the screen recordings.

    1 vote
  6. Comment on Half-Life: Alyx - 9 Minutes of Gameplay in ~games

    zlsa
    Link Parent
    The Valve Index is probably the best VR headset you can get today, and is priced accordingly. WMR headsets regularly sell for under $200 USD, and the Oculus Rift S is $350 USD. I wouldn't...

    The Valve Index is probably the best VR headset you can get today, and is priced accordingly. WMR headsets regularly sell for under $200 USD, and the Oculus Rift S is $350 USD. I wouldn't recommend the Valve Index over the Rift S for most people; sure, it's inarguably better, but not 2x better.

    1 vote
  7. Comment on What games have you been playing, and what's your opinion on them? in ~games

    zlsa
    Link Parent
    While it doesn't have the best racing dynamics, Project Cars 2 has undoubtedly the best realism and VR implementation out of all the simracing games IMO. If you enjoy zero-g movement, you might...

    While it doesn't have the best racing dynamics, Project Cars 2 has undoubtedly the best realism and VR implementation out of all the simracing games IMO.

    If you enjoy zero-g movement, you might enjoy Lone Echo and/or Echo Arena. Both of them are Oculus exclusives, but the movement implementation is second to none.

    1 vote
  8. Comment on How would you reduce speeding by car drivers? in ~talk

    zlsa
    Link Parent
    This is true in every car in the same way, not just electric cars. I don't know the exact numbers, but every car has an "optimal" speed that will give it the most range. Cars with more drag, for...

    This is true in every car in the same way, not just electric cars.

    I don't know the exact numbers, but every car has an "optimal" speed that will give it the most range. Cars with more drag, for example, will have a lower optimal speed. For ICE (internal combustion engine) cars, it's usually around 45mph, because a good amount of fuel is needed just to spin the crankshaft and move the pistons. In electric cars, that's somewhere in the ballpark of 15-20mph, because there are no big efficiency losses anywhere in the system.

    Doubling speed quadruples drag; this becomes a very big effect at high speed.

    9 votes
  9. Comment on What programming/technical projects have you been working on? in ~comp

    zlsa
    Link Parent
    That looks awesome! Years ago, I found dasher, an on-screen keyboard that has a similar concept. Here's a video of it in action.

    That looks awesome! Years ago, I found dasher, an on-screen keyboard that has a similar concept.

    Here's a video of it in action.

    2 votes
  10. Comment on YAML: probably not so great after all in ~comp

    zlsa
    Link Parent
    Like @spit-evil-olive-tips (would make a great password btw!), I use and love TOML whenever I need a human-editable config file, when JSON would be too strict.

    Like @spit-evil-olive-tips (would make a great password btw!), I use and love TOML whenever I need a human-editable config file, when JSON would be too strict.

  11. Comment on Every Google result now looks like an ad in ~tech

    zlsa
    Link Parent
    This tweet was linked deeper in the thread, and shows how Google has been slowly but surely making ads less conspicuous. This move isn't itself bad, but it is (IMO) indicative of Google trying to...

    This tweet was linked deeper in the thread, and shows how Google has been slowly but surely making ads less conspicuous. This move isn't itself bad, but it is (IMO) indicative of Google trying to downplay ads and make them blend in more with real search results.

    10 votes
  12. Comment on Every Google result now looks like an ad in ~tech

  13. Comment on SpaceX conducts successful Crew Dragon In-Flight Abort Test in ~space

  14. Comment on Suspension of Cogent access to ARIN Whois in ~tech

    zlsa
    Link
    From some cursory research, ARIN is the organization that handles IP addresses for most of North America, including Canada and the USA. Alongside the IP addresses, they maintain a list of contact...

    From some cursory research, ARIN is the organization that handles IP addresses for most of North America, including Canada and the USA. Alongside the IP addresses, they maintain a list of contact information for each address, so third parties can contact the administrator of the IP address in case of any issues.

    It appears that Cogent's sales team has been using this contact information to contact the IP address administrators (including to ARIN's CEO himself), attempting to sell Cogent's solutions, something ARIN's terms of use specifically prohibit. Therefore, ARIN is laying down the banhammer and prohibiting Cogent themselves from accessing the WHOIS database that ARIN maintains. (ARIN has said they're only blocking Cogent's own computers from accessing the database, and that Cogent customers will still be able to access it.)

    Alongside the email linked here, there's also a PDF of the letter ARIN sent to Cogent about this issue.


    I have no personal experience with Cogent, but judging from posts on reddit, they're not exactly the most-liked ISP.

    2 votes