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John Carmack’s presentation at Facebook Connect [video]

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Re: John Carmack’s presentation at Facebook Connect [video]

#11
post #2

If you want even more: after this talk John took questions in Horizon https://www.youtube.com/watch?v=P7mFEGah27c

It's interesting the way that talk demonstrates the limits of the software he was talking about.

In a big picture way, it's also interesting to hear a prominent Facebook employee being frank about the limitations of the product. Perhaps they're just not allowed to do that when it comes to privacy issues.

Re: John Carmack’s presentation at Facebook Connect [video]

#13
Has Occulus ever tried electromagnetic motion sensors. Sixense probably did that once, thought they never went into production but they said it was super precise and has very low latency.

Occulus is tracking motion with camera which is way more CPU intensive than calculating position based on electromagnetic signals.

One trouble they had though that it wouldnt work well with high energy electric items nearby.

So dooes anyone know if Occulus or HTC vive or other well in market consumer VR device ever tried that or has plans to do so? is this even possible?

EDIT: They also made controllers for Razer. https://support.razer.com/console/razer-hydra/

Re: John Carmack’s presentation at Facebook Connect [video]

#14
post #7

He is an incredible public speaker. The first time I heard him, almost 10 years ago, speaking to a journalist at E3, I was shocked. So much detail, but so well communicated. I can happily listen to him talk on almost any subject.

Oh, he's improved over the years. You should watch his very first presentations, during the Quake era. I think he's taken some speaking lessons to diminish his "uhms". But yeah, he's fearless of the public, which removes his mental blocks. I used to stutter in front of the public, but the one thing that solved it for me was a course, where we had to improvise in front of a camera. At the end, the coach replayed every…

I think for a lot of people, their fear of public speaking comes from not having gone through that first time you sound legitimately dumb. For example, saying something obviously flat-out wrong and tripping over your words doing so.

Up until that point, you are terrified of it happening. Once it does and you get past it, everything else seems much easier.

Watching recordings of yourself sounds like a mild form of exposure therapy.

Re: John Carmack’s presentation at Facebook Connect [video]

#17

Has Occulus ever tried electromagnetic motion sensors. Sixense probably did that once, thought they never went into production but they said it was super precise and has very low latency. Occulus is tracking motion with camera which is way more CPU intensive than calculating position based on electromagnetic signals. One trouble they had though that it wouldnt work well with high energy electric items nearby. So dooe…

Magic Leap's controller uses this technology, and as far as I am aware most people said it has inferior tracking to Oculus/HTC/Valve's approaches.

https://developer.magicleap.com/en-us/learn/guides/design-ma...

Re: John Carmack’s presentation at Facebook Connect [video]

#18
post #3

I thought he locked himself up in a cabin in the woods and tried to get into AI lately.

A bit like in Ex Machina? It would be cool to have a GPT-3 cloud powered clippy like guide in the Quest2, not only responding verbally but non-verbally as well.

Re: John Carmack’s presentation at Facebook Connect [video]

#19

Has Occulus ever tried electromagnetic motion sensors. Sixense probably did that once, thought they never went into production but they said it was super precise and has very low latency. Occulus is tracking motion with camera which is way more CPU intensive than calculating position based on electromagnetic signals. One trouble they had though that it wouldnt work well with high energy electric items nearby. So dooe…

I think that the goal for Oculus is to do everything using headset-mounted cameras, without the need for a base station, so it makes sense for them to focus on image processing instead of specialized sensors. Cost also matters, especially for a $300 standalone headset, and extra sensors aren't free.

One thing to realize is also that cameras (or lighthouses in the case of the Vive) are not the primary sensors. What really do the job are accelerometers and gyroscopes. Cameras only provide reference points to correct for drift.

Re: John Carmack’s presentation at Facebook Connect [video]

#20
This talk was such a treat. After all the carefuly crafted hype from Zuck and the gang, Carmack threw huge bucket of cold water on everything. I think it's just wonderful that he's allowed to speak so openly, about the things he's proud of, the things he thinks are failures, internal politics, the possibilities for improvement, the real hard physical limits VR is running into, and his growing pessimism for the future of VR. I could really hear it in his talk why he moved on to spend more time on his next passion.

Since it sounded to me like the low hanging mobile VR fruit has been picked, I went ahead and pre-ordered my very first HMD afterwards. Time to see for myself if this is the computing future or an evolutionary dead end.

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