On Thu, 2005-04-28 at 08:03 -0700, Andy Ross wrote: > So the local cockpit coordinates get double-transformed to the > centroid and back, losing precision in the process. That comes > out to roughly 1 part in a million at single precision, which > over a ~1km tile can be as much as a few millimeters, which is > several pixels of screen space in a small cockpit.
What's wrong with just using double precision? If it's because this math is done on the video card then fine. In ray tracing I switched to doubles over 5 years ago and measured only a tiny penalty which was more than made up for by the reduction of artifacts. Single precision is so 20th century. -Paul K _______________________________________________ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
