I'm developing a cube-panorama player with as3, it works great but I'm facing one little problem.
Each panorama-cube contains 6 faces with a 1600x1600px image textured on each one.
These images are loaded externaly and while it all works, flash seems to stutter when it finishes loading an image. Since this is a timelapse panorama player it will load at least 18 images for 3 cubes (previous, current and next panorama) so for the first 20 seconds or so when it loads them the navigation isnt very smooth. Each time a image is completed it hangs for a about half a second. this doesnt seem much but it doesn't delever a smooth expirence.
To try and isolate the problem I took the loader code (almost direct copy/paste from the manual) and put it into a empty project and put simple tweened animation on stage.. there the stuttering happens as wel.
Then I've schecked other panorama players (krpano and flashpanoplayer) and while they only load 6 images for one cube you can clearly see those players stuttering as well until all images are loaded. ( see for example: http://krpano.com/krpano.html?pano=panos/kirche/kirche.xml )
If I use smaller images the delay get shorter, using large images makes it worse. So what is happening internally and can I do anything about it?