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| I think he's wanting a stop and go animation. Like between frame 0 and 24 move 10 pixels... Then wait a specific amount of frames and move 10 more pixels. On May 22, 2012, at 11:56 PM, "Chris Zwar" <chris@chriszwar.com> wrote: > I'm not sure I completely understand what you're doing, but am I correct that you're animating the position of a light, which is being used as an emitter by Particular? And you want the light to move at a constant speed? > > If so, then you might be able to do what you want with roving keyframes. Just select all the position keyframes between your first and last, right-click and select 'rove across time'. No expression needed... > > -Chris > > > -----Original Message----- > From: jarret langmeire [mailto:langmeire@gmail.com] > Sent: Wednesday, May 23, 2012 02:27 PM > To: 'After Effects Mail List' > Subject: Re: [AE] Expression to maintain speed > > Hi David, > > Unfortunately that won't work since the time interval between the beams is > not constant. > > On 23 May 2012 12:13, David Torno <torno@sydefxink.com> wrote: > >> You could try adding the loopOut() expression to your keyframed property >> like so... >> >> loopOut("continue", numKeyframes=0); >> >> This will maintain the speed between the two keyframes as a constant speed >> until the layer ends. >> >> David Torno >> Visual Effects Artist & Supervisor >> http://www.ghosttownmedia.com >> O: 213.739.2290 >> C: 818.391.6060 >> --------------------- >> http://www.sydefxink.com >> http://aeioweyou.blogspot.com >> http://mactex.blogspot.com >> >> "The most useless day is that in which we do not laugh" >> -Charles Field >> >> On May 22, 2012, at 6:22 PM, jarret langmeire <langmeire@gmail.com> wrote: >> >>> Hi everyone, >>> >>> I've been trying to figure this out and have given up. I'm using a light >> as an emitter to send out pulses to various locations within a 3d space. I >> would like these pulses to travel at the same speed but can't figure out a >> way of doing this when I keyframe the light to a different location - in >> keyframe world the number of frames between the starting and ending >> position would obviously need to be further apart the longer the distance >> travelled in order to match the speed to a set of keyframes where the start >> and end point are closer together. I imagine there must be an expression >> that can handle this but alas, expressions are not my forté. >>> >>> Any help would be greatly appreciated, >>> >>> Jarret >>> >> >> +---End of message---+ >> To unsubscribe send any message to <ae-list-off@media-motion.tv> >> > > > > -- > -- > > Jarret > > > > > +---End of message---+ > To unsubscribe send any message to <ae-list-off@media-motion.tv> |
