Andy Ross writes: > > David Luff wrote: > > I'm not entirely clear on this - are mipmaps pre-built and available > > on disk for FG to load, or are they built from the main texture at > > runtime? > > The latter. I believe in our case it's done by plib, but there's a > standard gluBuild2DMipmaps() routine in OpenGL too. The time it takes > to generate the mipmaps with the CPU is much less than the time it > would take to read them off the disk.
True enough but once you run out of card memory you have lost. With the method I described you are covering 4 times the area with the same amount of on card memory every time you do a LOD step Norman _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
