Hi,
On Nov 7, 2008, at 1:50 PM, Ron Jensen wrote: > On Thu, 2008-11-06 at 20:47 +0000, Stuart Buchanan wrote: >> Hi All, >> >> I've put together an improved 3D clouds patch, available from here: >> http://www.nanjika.co.uk/flightgear/clouds2.tar.gz >> >> It fixes the following issues (to a greater or lesser extent): >> 1) Performance. Quad trees used to improve culling, and the sprites are >> placed on the surface of a sphere rather than >> randomly throughout the cloud, requiring fewer textures. This saves about >> 5-10fps on my machine. >> 2) Disabled 3D clouds have no performance impact. Previously they were still >> in the scenegraph. Now they are removed. >> 3) Clouds are now loaded on start-up, and don't require the scenario to be >> changed, they also work with METAR. >> 4) The cloud field is shifted as you travel. There's a small bug in that the >> clouds "jump" as you reach the edge of the field. >> 5) Iterative sorting of sprites. This doesn't appear to solve the alpha >> blending problem completely, but may help a bit. >> >> Could someone please check it in? Great improvement! It was checked in, and I did cvs up. It works here with MacBook Pro / Mac OS X 10.5.5 / ATI Radeon X1600 / Core2 Duo 2.3GHz / 2GB. The fps difference here is around 40-50 without 3D clouds and 20-28 with 3D clouds. I was doing something background so will be a bit faster. Btw, I changed the weather scenario from none to thunderstorm, turning out to be less could in the sky this happens with or without --enable-real-weather-fetch. Is it just with me or already reported? Anyway, thanks for your effort! Tat ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
