Curtis L. Olson writes: > Melchior FRANZ writes: > > [glowing c172] > > * David Megginson -- Sunday 21 July 2002 16:31: > > > For reasons unknown, the effect is different depending on whether > > > you're inside or outside the plane. > > > > To spread even more confusion: The same day I noticed the glowing > > c172, all fog was gone for me and my outdated tdfx V3. This happens > > for all FDMs and models except the UFO and both yasim's and uiuc's > > 747! > > Do we know what day that was, or what major things were changed that > day? This could be some weird opengl state management problem > introduced by one of our modules ... I hope not because these can be > among the toughest problems to debug, but it would be good to know > when this was introduced. I don't think any GeForce users are having > fog problems though.
Some more thoughts ... Could anyone pull an earlier version of the C172 3d model out of CVS to see if the problem was a change in the 3d model or a change in the source code? The 3d aircraft drawing code changes the near/far clip planes which could account for why you have lost your fog. I seem to remember this as a being a bug in the mesa/3dfx driver. (i.e. the fog tables are calculated for a specific near/far clip and if you change the clip planes, the fog tables aren't updated and you get weird results.) This isn't a big deal if you nudge the clip planes a bit, but could be a very big deal if they are changed radically. We could be looking at two separate problems here ... Regards, Curt. -- Curtis Olson IVLab / HumanFIRST Program FlightGear Project Twin Cities [EMAIL PROTECTED] [EMAIL PROTECTED] Minnesota http://www.menet.umn.edu/~curt http://www.flightgear.org _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
