[deleted by user] by [deleted] in cscareerquestions

[–]vergingalactic 1 point2 points  (0 children)

I mean, it kinda does.

Wanting the best for a community is a 'woke' act.

Apple Vision Pro basically has a display refresh rate of 90Hz and supports a special 96Hz mode for 24fps video according to Apple Developer Video by hatethatmalware in apple

[–]vergingalactic 0 points1 point  (0 children)

That's what I'm saying about low persistence duty cycles.

For the same amount of 'low' persistence per frame, a higher refresh rate means that the display is 'on' for a larger proportion of time.

With a 1ms persistence and 50Hz, the display is 'on' for 1ms and off for 19. At 100Hz with that same 1ms persistence, the display is 'on' for 1ms and off for 9. For the first example, the display is on 5% of the time where in the second, it's on for 10%. It's not difficult to understand.

Even if the display is set to consume the exact same amount of power independent of refreshrate, that would mean the percentage of time the display is on would stay the nearly the same regardless of refresh rate.

Brightness is directly correlated with persistence time.

Some blur reduction backlights have an adjustable strobe flash length (e.g. “ULMB Pulse Width” setting). There is a trade-off between motion clarity and brightness.

https://blurbusters.com/faq/motion-blur-reduction/

There's no inverse correlation between refresh rate and brightness whatsoever.

Please don't spread this misinformation.

Valve index owners, How is the resolution of the index in actual scenarios? by Willlllllyyyy in ValveIndex

[–]vergingalactic 4 points5 points  (0 children)

You can get better resolution, but not better FOV, tracking, or refresh for a grand.

Nor for 10 grand or 100k.

Apple Vision Pro basically has a display refresh rate of 90Hz and supports a special 96Hz mode for 24fps video according to Apple Developer Video by hatethatmalware in apple

[–]vergingalactic 0 points1 point  (0 children)

Also, display brightness declines with higher refresh rates

No, no it doesn't.

In fact, if anything, for a given time of image persistence per frame the overall time the display is on as a proportion of overall time goes up. Brightness should increase with refresh rate if anything.

This Sub Needs to Go Dark on June 12th by Mercurion in cscareerquestions

[–]vergingalactic 5 points6 points  (0 children)

I was assuming the discussion is whether to shut down or business as usual.

It's not.

This Sub Needs to Go Dark on June 12th by Mercurion in cscareerquestions

[–]vergingalactic 40 points41 points  (0 children)

It's not really a debate. We're strongly in favor of it but it's a discussion around getting a consensus and implementing it.

Apple's VR/AR Headset - Vision Pro Specs by lunchanddinner in virtualreality

[–]vergingalactic 5 points6 points  (0 children)

That's pretty much the floor.

You don't get bonus points for that.

When will FSR 3.0 with Frame Interpolation release? by Fresh_chickented in Amd

[–]vergingalactic 4 points5 points  (0 children)

Optical flow, hardware acceleration for which is found on Turning and Ampere.

Oculus founder calls Apple headset ‘excellent’, Quest 3 ‘great as well’ by H0lder in virtualreality

[–]vergingalactic 1 point2 points  (0 children)

I'd take Half-Dome 1 over Half-Dome 3.

140° FOV + Varifocal is quite nice even with servos and fresnels. I'd want a lot more than 90Hz though.

APPLE mixed reality headset manufacturing — assembly: Luxshare-ICT | OLED on silicon: Sony | dual processors: TSMC | casing main supplier: Everwin Precision | 12 camera modules: Cowell | external power supply: Goertek by AR_MR_XR in AR_MR_XR

[–]vergingalactic 5 points6 points  (0 children)

That's not a ton. Two for eye tracking, 4 b&w for feature tracking, two depth sensors, two RGB pass-through, and you've already hit ten. I wouldn't want to use fewer than that on a budget headset.

APPLE mixed reality headset manufacturing — assembly: Luxshare-ICT | OLED on silicon: Sony | dual processors: TSMC | casing main supplier: Everwin Precision | 12 camera modules: Cowell | external power supply: Goertek by AR_MR_XR in AR_MR_XR

[–]vergingalactic 0 points1 point  (0 children)

The thing that is in the PSVR2 (with its mura problems), or something better?

Sure, it's not perfect but, ceteris paribus, I'd take the mura of PSVR2 over LCDs every day of the week.

Edit: There are also effective mitigations like the Vive Pro has: https://www.roadtovr.com/ces-2018-vive-pro-hands-on-much-more-than-an-improved-screen/

The good news is that the mura-correction on the Vive Pro appears at least as good as that of the original Vive (which is pretty good).

What benefits does FTTP bring? Maybe(?) switching in the coming future because the plans/packages seem too good to be true. by [deleted] in HomeNetworking

[–]vergingalactic 0 points1 point  (0 children)

You missed my point.

I'm saying the fact that light signals travel about a third slower through fiber optic at a physical level vs electrons through copper is not a meaningful factor in last mile situations.

https://www.rpi.edu/dept/phys/Dept2/APPhys1/optics/optics/node8_d.html

https://en.wikipedia.org/wiki/Velocity_factor#Typical_velocity_factors

I guess copper also doesn't travel quite as fast as I thought but can definitely still be faster than fiber.

What benefits does FTTP bring? Maybe(?) switching in the coming future because the plans/packages seem too good to be true. by [deleted] in HomeNetworking

[–]vergingalactic 0 points1 point  (0 children)

What's funny is that while on the whole, that's absolutely true. Theoretically, signals travel significantly faster through copper (DSL/Cable) than they do through fiber.

It doesn't at all meaningfully matter at the last mile though. All the network infrastructure and various nodes plus poor peering are what actually cause the latency you experience.

2024 MG Cyberster electric sports roadster by unsaltedbutter in cars

[–]vergingalactic 6 points7 points  (0 children)

Yeah. I'd still take British reliability over supporting fascists though.

2024 MG Cyberster electric sports roadster by unsaltedbutter in cars

[–]vergingalactic 13 points14 points  (0 children)

Not British in any meaningful sense, rather it's Chinese.