On Wed, 2003-01-22 at 17:14, David Megginson wrote: > Hoyt A. Fleming writes: > > > There was a discussion quite a while back about decreasing the > > terrain level of detail (LOD) as the terrain distance increased so > > that frame rates could be increased. Do you know if that LOD > > concept looked promising for FG? > > Continuous LOD is probably a non-starter for us -- at least, the > implementations I've read about assume a regular elevation grid with a > simple texture mapped on top, and that doesn't describe the way we > model scenery. If someone wants to try that, you'll probably want to > write it from scratch and then we can try plumbing it into FlightGear.
Yes I agree it would need to be done from scratch. I'm considering giving it a go. Another aspect of LOD rendering is you can't use OpenGL lighting since geometry is always changing, so lightmaps must be used for lighting. Vertex morphing is required so the terrain looks not changing. Is it already possible with TerraGear to generate a regular grid which would mirror the original source DEM ? Michael _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
