On Sunday 26 October 2008, Stuart Buchanan wrote: > LeeE wrote: > > On Saturday 25 October 2008, Stuart Buchanan wrote: > > > Hi All, > > > > > > After a lot of effort, and help from Tim, I've finally got > > > some 3D shader-based clouds that work acceptably: > > > > > > http://www.nanjika.co.uk/flightgear/clouds.jpg > > > > > > A patch is available from here: > > > http:/www.nanjika.co.uk/flightgear/clouds.tar.gz > > > > > > I've put quite a bit of effort into making the clouds as > > > configurable as possible. The cloudlayers.xml file should > > > allow any cloud-artists to create much prettier clouds than I > > > have managed. > > > > > > There are quite a few bugs to be ironed out:- > > > 3) The alpha-blending isn't working properly > > > > This looks like a z-ordering issue. Is z-ordering used in the > > cloud routines? > > It is, but I'm not sure it is working on the level of individual > sprites. The clouds are in the correct rendering bin (I think), > but because of the use of shaders we currently just render them > in an arbitary order within each cloud. > > I wonder if the problem is the > CouldShaderGeometry::drawImplementation(). Does that seem likely? > > -Stuart
Yeah - the ordering seems random - some of the individual sprites look ok but others don't. Are the texture edges anti-aliased? - it looks like they may be and that might be causing problems because of intermediate values in the boundaries. LeeE ------------------------------------------------------------------------- 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
