On dimanche 09 novembre 2008, Heiko Schulz wrote: > Hi, > > > 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. > > Indeed! Much better now! Even switching between None, METAR, fair weather > make no really difference for me now! But the clouds seems to me that they > are now to regular and not so random as before. > > > 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. > > How about loading the needed set of cloudfield when approaching the next > available METAR? In reality weather and clouds are changing even on short > distances. > > > 5) Iterative sorting of sprites. This doesn't appear to > > solve the alpha blending problem completely, but may help a > > bit. > > There is no much improvement for me- still very visible. I wonder if this > would disappear if we could add some "volume" to the clouds, but this would > mean that we have to add some shaders and would also mean a decreasing of > fps... > > Regards > HHS > I do like that new version , i hope that the next one without that ordering problem will be perfect.
http://pagesperso-orange.fr/GRTux/3DClouds-img6.jpg with that screenshot we may identify where the problem is: -no clouds layer behind it is very good ( bottom part of the sky ) - with clouds layers behind ( upper part of the sky ) we get that ugly blue color -- Gérard http://pagesperso-orange.fr/GRTux/ J'ai décidé d'être heureux parce que c'est bon pour la santé. Voltaire ------------------------------------------------------------------------- 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
