• Hey, guest user. Hope you're enjoying NeoGAF! Have you considered registering for an account? Come join us and add your take to the daily discourse.

PlayStation Mobile powers a fan-made tech demo of remote play Left 4 Dead on Vita

onQ123

Member
YouTube user digitalarts001 has used PlayStation Mobile to power PC and Xbox 360 game Left 4 Dead on Vita.
The video, below, shows Valve's zombie shooter running on the handheld, complete with motion input to move the camera.
It looks like digitalarts001 has written an app for Vita, using PlayStation Mobile, that connects to a remote version of Windows and plays Left 4 Dead on Steam over a local network with little lag.
digitalarts001 has published a number of videos of games running on Vita, including Super Mario Bros. 3, Final Fantasy 10 and Metal Gear Solid.
PlayStation Mobile is what used to be called PlayStation Suite, Sony's program to create a range of PlayStation-certified content available on devices that meet the PlayStation Certified requirements (right now, this means devices that run Android, and Vita). It's currently in open beta.
More than 50 developers are creating content for PlayStation Mobile, with the SDK freely available to software houses under the PlayStation Mobile Developer Program.


PlayStation Mobile powers Left 4 Dead on Vita
 

DBT85

Member
I just wonder if an app like that would ever be allowed on the store.

Would be great if it was.
 

Durante

Member
This is streaming I can get behind.

Also, just using the Vita as a controller would be great for some games, thanks to its fantastic d-pad.
 
That's impressive, but why it does look he's not actually playing? The actions on the screen don't seem to match those he's making.

maybe it's just lag or something on my end, but it looks a little off.
 
D

Deleted member 80556

Unconfirmed Member
This looks interesting! Is it possible that this leads to an exploit?
 
This looks interesting! Is it possible that this leads to an exploit?
Exploit?
This is just videostreaming with some input control, and it's totally legal.
Has no control over the system OS, PSmobile applications are heavily nerfed to prevent any kind of hack.
It's already amazing this guy pulled this thing to work with those limitations.
 

Chris_C

Member
What's really impressive is that it looks virtually lag-less. I wonder about the legal ramifications of such an app though. It would benefit both Sony and Valve (I don't play PC games, but you can bet I'd start if I could stream them to my Vita). However... I imagine digitalarts001 would need to charge for this to put it on the store, and that might cause legal issues.
 
What's really impressive is that it looks virtually lag-less. I wonder about the legal ramifications of such an app though. It would benefit both Sony and Valve (I don't play PC games, but you can bet I'd start if I could stream them to my Vita). However... I imagine digitalarts001 would need to charge for this to put it on the store, and that might cause legal issues.

Can't you download apps via Playstation Mobile for free? I hope he puts it up with a nice and friendly interface and everyone can test it.
 

Durante

Member
I actually don't see what the problem with distributing this broadly, or even selling it, would be. Everything it does is perfectly legal.
 

DBT85

Member
Can't you download apps via Playstation Mobile for free? I hope he puts it up with a nice and friendly interface and everyone can test it.

Only during the beta. Once that's over the only people that would be able to use it would be people who pay the $100 or whatever it is to be a developer. Unless Sony decide to allow it on the store.
 

Chris_C

Member
Can't you download apps via Playstation Mobile for free? I hope he puts it up with a nice and friendly interface and everyone can test it.

I think you can, but I think that (so far) applies to the development environment. I was thinking about getting this app on PSN.
 

gofreak

GAF's Bob Woodward
I actually don't see what the problem with distributing this broadly, or even selling it, would be. Everything it does is perfectly legal.

I don't see there being an issue with this either.

The question I have is whether the dev can turn it into a polished product. There's probably a tonne of corner cases to cover in order to have a solution that works as is with games/software in general. You can see at the start of the clip that he has to do some stuff on his PC even just for this one special case.

SplashTop etc. have trouble getting things 100%, so I dunno...but maybe it doesn't have to be perfect to be marketable.
 

Durante

Member
Lag shouldn't be a large issue with this. You only need a relatively low resolution encoding for Vita (by PC standards) which a high-end PC should be able to handle very quickly (single-digit milliseconds). Then you send it over local WLAN, which should be <20ms with good reception. Decoding is also <1 frame for certain. In total the input lag certainly won't match a fast monitor, but it could be as good or better than your average LCD TV.
 

Omikaru

Member
This has the potential to be pretty big for PC games. Keep your PC in your bedroom/study/whatever, stream whatever games play on it to any network-enabled screen in the house. And you don't have to be always online to do it (games permitting).

You could do this on Vita, or set-top boxes, or anything else like tablets that let you hook a controller up to it. Comfy couch gaming without lugging your PC to the living room, or having to rely on laggy, blurry, consumer-unfriendly cloud gaming bullshit. With Steam Big Picture or XBMC, you could run a gaming HTPC and be able to switch screens as the need arises.

I love it.
 

Durante

Member
How the hell has he got the graphics card outputting into the network?
Every time i've tried remote clients, VPN's, desktop streamers, etc, they've all complained about graphics card issues when trying to run a proper game.
It's not so hard. I mean it's a nice piece of engineering, especially when you want to minimize delays, but not an unsolved problem by any means.

One well-known way is intercepting the DirectX calls to present a frame. You can then download the framebuffer and encode it. It's what FRAPS does when it records a video.
 
I think that shouldn´t be any problem in the distribution of something like this, it´s just a vnc-like software, you connect to your own pc, i guess that it has some kind of usb controller input emulation where you map the controls and the touchscreen act as a mouse
 
ever since I pratted about on skyrim on my iPhone using splashtop and saw it was playable (not perfect) ive wanted this kind of thing. On my vita would be perfect with the controls being built in.
 

gofreak

GAF's Bob Woodward
Would this be classed as an emulator though? The games are running on the PC, after all.


Not as an emulator, but depending on how broad your definition is, possible 'something which runs a secondary executable.'. But maybe - hopefully - he means a secondary exec on the Vita itself.
 
Top Bottom