Predictive Modeling To Increase Responsivity of Streamed Games 120

jones_supa (887896) writes Streaming game services always bump up against a hard latency limit based on the total round-trip time it takes to send user input to a remote server and receive a frame of game data from that server. To alleviate the situation, Microsoft Research has been developing a system called DeLorean (whitepaper) using predictive modeling to improve the experienced responsiveness of a game. By analyzing previous inputs in a Markov chain, DeLorean tries to predict the most likely choices for the user's next input and then generates speculative frames that fit those inputs and sends them back to the user. The caveat is that sending those extra predictive frames and information does add a bandwidth overhead of anywhere from 1.5 to 4 times that of a normal streaming game client. During testing the benefits were apparent, though. Even when the actual round-trip time between input and server response was 256 ms, double-blind testers reported both the gameplay responsiveness and graphical quality of the DeLorean system were comparable to a locally played version of the game.

Is Dong Nguyen Trolling Gamers With "Swing Copters"? 113

Nerval's Lobster writes Given its extreme difficulty, it's tempting to think that the new Swing Copters is Dong Nguyen's attempt at a joke (You thought 'Flappy Bird' was hard? Check this out!), or maybe even a meta-comment on the emerging "masocore" gaming category. Or maybe he just wanted to make another game, and the idea of an ultra-difficult one appealed. Whatever the case, Nguyen can rely on the enduring popularity of Flappy Bird to propel Swing Copters to the top of the Google and iOS charts. But his games' popularity illuminates a rough issue for developers of popular (or even just semi-popular) apps everywhere: how do you deal with all the copycats flooding the world's app stores? Although Google and Apple boast that their respective app stores feature hundreds of thousands of apps, sometimes it seems as if most of those apps are crude imitations of other apps. The perpetual fear among app developers is that they'll score a modest hit—only to see their years of hard work undermined by someone who cobbles together a clone in a matter of weeks or days. If Apple and Google want to make things friendlier out there for developers, they might consider stricter enforcement policies for the blatant rip-offs filling their digital storefronts.

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