Mathias Fr�hlich said: > On Dienstag 07 September 2004 19:35, Lee Elliott wrote: > > In a/c that have one or more VC views there's a visible 'jitter' when > > looking at parts of the a/c, most notably in my experience, with the > > windshield/canopy frames. > Yep, and most notably when you look at 3d instrtuments. > > This is a problem with the OpenGL transform matrices being single precision. > The transforms include translations to the cenery center and back. This > jitter is the roundoff of thode two treanslations ... > > Making all this stuff double precision would help. > > But these matrices are stored in ssg* (=plibs simple scene graph) classes > which use single precision values. Sadly there is no double precision > aequivalent available. So this requires something more intelligent that what > I have investigated some time ago ...
Ah...hmmm. That won't help. Probably the only thing that will work is rendering the aircraft seperately at a 0,0,0 origin when the view is inside the cockpit. There are quite a few values being passed around as floats in the FGViewer and SGLocation classes. It "might" help some to change a few of those to double, especially anything related to view position. Best, Jim _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
