On 11/12/03 at 5:36 PM Norman Vine wrote: >Curtis L. Olson writes: >> >> Like you say, to do this well, we would need some way to efficiently >> page texture data in and out. We'd also want to be able to load >> lowres mipmaps for distant stuff and hold off loading the full >> resolution version of the textures until they are close enough to >> actually be used. > >One way todo this is to always use the same size texture so as to >be able to use glTexSubImage2D() to control the level of detail and >mipmaping ourselves. > >Easiest todo this if the scenery is laid out so when you go to >a lower level texture it covers 4 times the area and visa versa > >This works with SimGear's latitude adjusted tile 'bands' as they are >broken into 8x8 sub grids :-) >
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? Cheers - Dave _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
