All this stuff is on Wikipedia, btw. http://en.wikipedia.org/wiki/Double_buffer (middle of the page) http://en.wikipedia.org/wiki/Bit_blit
-austin -- Austin Haas Pet Tomato, Inc. http://pettomato.com On Wed Jul 11 14:54 , Keith Peters wrote: > Well it seems like true double buffering would be solving a problem we > don't really have in Flash. I've also heard the term "blitting" be > applied to this technique in Flash. There are a couple videos up on the > fitc.ca site from the toronto 07 conference that discuss this. > > Austin Haas wrote: > > Double buffering isn't about performance. It's about drawing the next > > screen before the monitor does a vertical sync. The purpose of double > > buffering is to avoid graphic issues like tearing and shearing that occur > > when the screen is being updated at the same time as it's being drawn. > > > > You can use two buffers to simulate the double buffer technique, and there > > might be some performance gains there, and you might reduce the chances of > > tearing/shearing, but calling that double buffering would be an abuse of > > terminology, as that term already has an accepted meaning. You would be > > misleading anyone who was looking for a solution to the real problems that > > double buffering is intended to solve. > > > > I'd really like to know if there are performance gains with this technique > > in Flash. I thought that I tried it a while back, but abandoned the idea > > after seeing no real gains. Does anyone have any data or a live comparison? > > > > -austin > > > > > > > _______________________________________________ > osflash mailing list > [email protected] > http://osflash.org/mailman/listinfo/osflash_osflash.org > _______________________________________________ osflash mailing list [email protected] http://osflash.org/mailman/listinfo/osflash_osflash.org
