On mardi 30 septembre 2008, Heiko Schulz wrote: > > These links are pointless, you're required to have an > > account to view > > the images, > > > > Martin. > > Oh- shit, I forgot..... > Sorry! > > O.k. for description: > Helicopter landed on a basketball field of clay and made a really huge > cloud of dust. > > Each cloudpart are shifting away randomly and affected by the wind, the > downwash and the turbulences, covering the whole place. They are also > affected by the objects around this area. > > This means it needs a lot of properties to control which our current system > cannot use yet to my knowledge. Some of the effets named above can be done > with .osg, but not yet with our particle system. > > Regards > HHS > > Hello Heiko, That is exactly what i wanted to explain.
However today we can do it with a mixted of OSG script models (severals models) and the usual animation property (scale, select, rotate) , i played with it in order to get the wakes effects (large concentric circles moving from inside to outside) of an helicopter which over the sea when rescueing (S-51) I never included it because the result was not nice, i hope (after many hours working on these wake effects ) to propose something. And, partly, we have that approach, with the example of effects on the Catalina CVS which use animation of OSG script animation models, animated by the usual animations <property> rotate, select ( i don't remember if do use scale). That existing example is tricky, and not very accurate :( Sure, the best, would be, to have everything included into our usual XML language. But, we must have first the features which manage a hierarchy of effects, with the relationship child(s) mother => multilevel =>multistage (that is what i called animations into animation). It is easy to write it, within OSG script (which do not want too many lines of script) It won't be so easy to write it with XML ( if we had the features) , many.. many ... lines of XML script would be necessary (look at any existing examples of usual animation with hierarchy, for instance landing gear and its components, struts, wheels..) and XML scripts will become very heavy to write and to manipulate. -- 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
