* Jon Stockill -- Sunday 29 May 2005 21:02: > Melchior FRANZ wrote: > > With these changes most of the 950 faces are invisible to the ground cache. > > There's only a simple invisible pyramid instead for intersection tests.
> Is this something that people should consider for any high poly > structures then? For similar objects, yes. But you won't easily find something similar. The ground cache doesn't consider a big area, only about the size of the aircraft AFAIK. The Nimitz, for example, has 2071 faces (Only a bit more than twice as much as the beacon! :-) But if you fly over it, only a few hundred vertices end up in the ground cache at the same time. Because of the small size of a beacon, all the 950 went into the cache in one go. In less verbosity: this technique does only make sense for objects with high face *density*, not high face *number*. I could be wrong, of course ... m. _______________________________________________ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
