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Comment: Re:Frame rate (Score 2) 49

by AndOne (#46615215) Attached to: How Ford's Virtual Reality Lab Helps Engineers

The rendering frame rate of their system leaves a lot to be desired. The VR hardware looks good for their needs and usage, but that frame rate totally kills the immersion. That's inexcusable in this day and age - people have better gaming rigs than that. My guess is they have a very poorly optimized modeling system that has to pull data from whatever CAD systems they use.

1) The framerate doesn't need to be optimized as they're not going for immersion, but rather the ability to look things over from novel angles in a semi natural way. In fact immersion might run counter to their goals in this situation.

2) The car models are probably extremely detailed and overmeshed even to guarantee that the model has high physical fidelity. A large amount of the performance in games that is lost in CAD is due to geometry bandwidth.

3) Also X-Ray mode implies some pretty interesting alpha blending type effects so they're probably losing most of their Z-Culling and line drawing also isn't as optimized in graphics hardware as most people don't use it. It's actually a selling point on several CAD workstation graphics cards that they accelerate line drawing.

4) The motion capture system tracking their hands and heads also probably introduces some level of system latency.

Comment: Shocked! (Score 1) 300

I am shocked! Shocked I say, that a company who's major VC investor sits on the board of Facebook was bought by Facebook.

Will this kill VR? Probably not. Is this going to usher in VR sooner? Maybe. Is this the wave of the future for social media? Probably not. Most people have no idea what the Oculus is nor do they care. The average person thinks you're a dork for wearing VR but will enjoy it for its novelty for a while. I say all this as someone who backed the Kickstarter and has a DK1.

VR is inherently anti-social and oriented for consumption of media. Most people want to hang out with their friends face to face and not in a virtual land because humans are hardwired for social contact (for the most part). Plus Facebook has an inherent asynchronous aspect that makes it appealing. It's a broadcast that people can respond to overtime. But VR demands equipment and attention. I don't see people having this commitment to VR for this sort of activity.

I honestly don't think it's just the technology not being there that held back VR all these years. The tech to do this has probably been here for about 6 to 10 years if the will to do it had been as well. I think the future of this sort of thing is much more likely in the field of Augmented Reality. Things that enhance your day to day life and help you complete tasks or activities. VR has some appeal for gaming/entertainment, but I think the only serious task I see for it might be teleoperation of robotic systems. Most of the time you want to be able to engage the world around you, not shut it out completely.

One last point, if VR is going to take off like people hope, we need rendering systems that can do real time photo realistic rendering of realistic scenes with serious fidelity. We're getting close, but it's still going to be a while and even then the computing power required is going to be stout.

Comment: Re: "So who needs native code now?" (Score 1) 289

by AndOne (#45769959) Attached to: Asm.js Gets Faster
There's nothing wrong with setters and getters provided one writes them well. It's extra work but I've had times where having setters and getters to put break points in would have allowed me to catch and fix highly insidious bugs caused by people doing bad things in other parts of the code. To be fair it was their use of globals that made it an issue in the first place :/.

That being said I always try to write them in attribute style as it looks almost as clean as direct public access.

Comment: Time to get out the black flags (Score 3, Insightful) 223

by AndOne (#42879667) Attached to: What EMC Looks For When It's Hiring
Seriously, before DICE bought /. it seemed like I just didn't have enough time to catch up on all the articles I wanted to. Now I'm lucky if there's two or three articles a week that are interesting enough for even a second glance. And now this shit? Terrible...

I award you no points, and may God have mercy on your soul.

Comment: Guarantees (Score 5, Informative) 260

A PhD doesn't really guarantee you anything. It can also be detrimental depending on what you want to do as some companies consider it too much or too expensive. You'll be better off starting in a Masters program and then deciding if you you really see a need or feel the desire to go for the PhD. A PhD is a LOT of work and time.

Really unless you plan to go into academia or hard core research I'd steer clear.

Comment: Re:Not Much You Can Do About That (Score 1) 197

by AndOne (#39973591) Attached to: 'Social Jetlag' May Be Making You Fat
I have the same issue. Sleep study confirmed and everything. I was working with a clinical behavioral psychologist to improve some, but life went crazy and my sleep is back to pretty much being shit.

Light therapy did help some though. I need to get back on trying that.

People are basically assclowns about it though.

Comment: Re:I call bullshit (Score 1) 233

by AndOne (#39602207) Attached to: Majority of Landmark Cancer Studies Cannot Be Replicated

No you don't. You just need to read the published paper and attempt to reproduce what the paper reports. (A good scientific paper includes enough information to make the work it reports on reproducible.)

That's the ideal and idyllic world. In many areas there's a ton of hidden parameters and secret sauce that doesn't get reported. I found this to be especially true in robotics and machine vision and other computer science papers.

Comment: Re:Absolute power corrupts absolutely. (Score 2) 233

by AndOne (#39602165) Attached to: Majority of Landmark Cancer Studies Cannot Be Replicated
I spent a year and a half working on trying to replicate results from one paper. Total failure. A few years later I was talking to one of the researchers and sure enough, the results only worked in that one case for that one data set and pretty much had no real chance of working any other way. That's pretty much the straw that broke my brain. The entire time it was my fault the results weren't being reproduced....

Comment: Re:What ISN'T NP-Hard? (Score 1) 212

by AndOne (#39149561) Attached to: Physics Is (NP-)Hard
I'd love to know what you consider the most basic algorithms. There are entire classes of problems which are polynomial and are not "basic". I also think you don't understand what it even means to be NP-Hard (which is just the numerical version of being NP-Complete.) Also to show that something is NP-Hard is equivalent to showing something is NP-Complete, which means you show there is a Polynomial time reduction to another problem in the appropriate class. Seriously, how did this get modded insightful.

Honestly, I don't think you even begin to understand complexity spaces or how they work.

http://en.wikipedia.org/wiki/Complexity_class

Comment: Re:Memory? (Score 1) 452

by AndOne (#37536450) Attached to: Mozilla Foundation Releases Firefox 7
I had firefox 6 clock in at just under 4GB of ram with about 60 to 90 tabs open before the stuttering got so bad I started closing things. It went down to 2.2 GB after I closed about half the tabs. It's common for me to have even more tabs open across multiple windows given the way I use the browser, but I must say that was the first time I've seen it stutter at 4GB like that. Usually it would sit around 2GB of ram with anywhere from 100 to 200 tabs open.

So with 39 tabs open I'm happy to see just 390MB of usage right now on FF7. Usually we'd be approaching 700MB already.

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