I wrote: > Thorsten > > > > > > I have tested using only the test tile so far. The time spent in > > > events is dramatically reduced to around 70ms vice 210ms. There > > > remains some odd cyclical frames coming in, but the results are > > > broadly in line with Basic Weather. > > > > Okay, that's good news. I'll continue working along these lines then, > although > > I expect that the rest is just cleanup work which will not gain that > > much performance any more. > > > > The biggest issue is that in this version the movement of the Cirrus > clouds is > > broken, and under some (somewhat unusual) conditions that would show > > (since tiles themselves still move, there'd be a pileup of clouds in a > given > > location in strong winds if the aircraft doesn't move much). But it > > seems > the > > quadtree code to move them is simply too heavy - either a lighter > > scheme > is > > needed, or some other solution. > > > > What's the prospect of adding hard-coded movement to models loaded > > from Nasal? AI models defined on startup can have a heading and an > > airspeed and these can even be changed at runtime - just models loaded > > from Nasal at runtime don't seem to have that feature, and so they > > require per frame position updates from Nasal. > > > > Looks doable - but then everything does until the difficulties become > apparent :-) I'm just doing a little experimentation here now on that. >
Done. Could do with some more refinement, but it works. If you input speed-kt, then position updates are ignored and positions are calculated from input speed and pitch. Here are the patches: http://dl.dropbox.com/u/57645542/0001-SG%20Make-Models-move-with-heading-and -speed.patch http://dl.dropbox.com/u/57645542/0001-FG-Make-models-move-with-heading-and-s peed.patch http://dl.dropbox.com/u/57645542/0002-FG-Calculate-horizontal-and-vertical-s peeds.patch Next, I'm going to allow input of vertical and horizontal speeds (fps) as well. Seems to have very little impact on framerate, but it involves a for loop (and you know how much I like those), so there are limits. Tested on Win7 and Linux Vivian ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
