Christopher S Horler writes:
> 
> Just moved house, having all kinds of problems... but I have still get a
> deep sense of curiousity about all this.
> 
> Is the scene calculated in the main loop? - Do we check these buildings
> are there every cycle?  
> 
> Or is the implementation more along the lines of; calculated in advance
> and setting a variable to switch execution to recalculate at some
> predetermined point?

In the future Please bottom post
http://www.dickalba.demon.co.uk/usenet/guide/faq_topp.html

Almost all of the objects in FlightGear 
< the HUD and Panel are two notable exceptions >
are 'just rendered' during the Scene Graph traversal

if Scene Graphs are new to you see
http://plib.sourceforge.net/ssg/index.html

google( "tutorial scene graph" )

should yield lots of info too

HTH

Norman


> 
> On Tue, 2003-09-02 at 12:07, Frederic BOUVIER wrote:
> > Norman Vine wrote:
> > > I noticed a *very* significant fps drop with the new scenry objects 
> > > in San Francisco which may be due to having many small textures 
> > > rather then having the small textures combined into one as is done 
> > > with the Panel 
> > 
> > I use texture repetition for the buildings. Is it possible to achieve that 
> > when they are grouped in a single file ?
> > 
> > - Fred
> > 
> > 
> > _______________________________________________
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> 
> 
> 
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