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March 03, 2010
Synchronizing Bots
Posted by Ross McIntosh, Gameplay Programmer
Here’s an introduction to a method for synchronizing AI in multiplayer games. It addresses an implementation that uses the Sync Host system that was described in the previous presentation as well as outlining the methods it uses to synchronize the many different aspects of AI. You’ll find details on the rationale behind why systems are synchronized in the way that they are, as well as the problems and solutions programmers have to keep in mind when using this method of synchronization
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February 25, 2010
Introduction to Sync Host
Posted by Peter Kao, Gameplay Programmer
Online functionality has become a fundamental component of our games. This is an introduction to Sync Host, a system developed to address some of the tougher issues we’ve encountered when implementing network synchronization.
January 06, 2010
An Algorithm for Lockless Processing of Sound Data
Posted by David Thall, Engine Programmer
An algorithm has been developed to asynchronously load, unload, play and relocate sound files without the use of locks. The algorithm allows the programmer to arbitrarily assign different logical subsections of the underlying system to different threads, all while remaining completely lock-free.
An example implementation has been developed that asynchronously loads and unloads sound files in one thread while playing and relocating the same sound files in another thread. All of this happens in a single shared memory heap, all without locking. A complete working version of this system will be described, highlighting the simple yet elegant design principles.
January 06, 2010
Wavelets for the Layman
Posted by Mike Acton, Engine Director
Here's an internal presentation I gave just about a year ago on using wavelets for image compression. A nice and gentle introduction to a subject that's really pretty simple that is often buried under so many details that people don't know how to approach learning it.
October 23, 2009
Color Spaces and You
Posted by Andrew Dickinson, Senior FX TD
A basic introduction to the concept of a colorspace for artists, programmers, and anyone who's just curious about the meaning of terms like "sRGB, "gamma," and "color profile." Talks about where colorspaces come from, what they look like, and why you might need to think about them.
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NOCTURNAL INITIATIVE
This section is a part of our larger NOCTURNAL INITIATIVE® and documents our current research and development in hopes of supporting the PS3 development community and enhancing overall development for its core technologies such as the CELL processor and RSX. More
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