scott <sco### [at] scottcom> wrote:
> >    The scene geometry cannot be loaded all at once onto the GPU RAM if the
> > scenery is huge (which is the case at least with open sandbox games and even
> > non-sandbox ones if the scenery is very detailed). The scenery has to be
> > loaded dynamically as the player moves. The more RAM you have, the less
> > loading needed and the faster the game.

> Why should loading the scenery from disc slow down the game?

  Odd question. Because the disc is really, really slow?

  The more RAM you have, the more scenery you can preload, which allows
showing more detail at greater distances, reduce the amount of visible
changes in level-of-detail when you move, and overall works as a larger
"cache" for the scenery.

  If you have less RAM, this "cache" gets filled a lot quicker needing
a lot more loading from disc as you move around, and it reduces the amount
of detail you can show and introduces more visible changes in LOD levels.

-- 
                                                          - Warp

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