Stewart Andreason wrote: > Vivian Meazza wrote: > > I remain unclear what the claimed shortfall in the particle > implementation > > actual _is_. I have just provided generic tyre smoke, tyre spray and jet > > spray animations in cvs the XML implementation. So far as I can see they > are > > reasonably realistic, and were fairly straight forward to do. The xml > > implementation does exactly what it says on the tin. However, if someone > > would tell me in English that I can understand what the shortfall is, I > will > > see if I can extend the implementation to cover this. > > > Hi Vivian, > > There is something I can't do with xml particles. > There is only a <start> and <end> sections under <particlesystem> > <particle> > It would be nice to be able to have at least one Midpoint to change the > speed at which the color or alpha or size changes from Start to End > definitions. > > Right now a vapor trail starting at alpha 0.4 , size 0.7 , and ending at > alpha 0.95 , size 18 , with life-sec of 45 takes too long to look nice, > and then evaporates rapidly in the last few seconds. >
You're certainly pushing the envelope there! There seems to be a built-in interpolator function. I'm not clear what it actually does, but it could be added to the xml tags. I'll consult with Tim Moore. Vivian ------------------------------------------------------------------------- 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
