Return-Path: Received: from mail-yx0-f169.google.com ([209.85.213.169] verified) by media-motion.tv (CommuniGate Pro SMTP 4.2.10) with ESMTP-TLS id 4722302 for AE-List@media-motion.tv; Wed, 23 May 2012 06:25:27 +0200 Received: by yenm7 with SMTP id m7so6356194yen.28 for ; Tue, 22 May 2012 21:27:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=EGqMs8eKJqUqL1eaVE+noTkO+iMelsK9Dnpw5vrULNU=; b=kpkllq+hCyAo3ZuSq2VkDCQ8Rmzxn5W+372DZ2ztBwQAnfdOUPQzyZ8HKIaLkD9d/3 X568AwyN7zN26nW8pCfzUVm2uO4QS7UATw1hj7EDYKZF/t8KI1UU/LL3H6eBut8/G8D6 gPFJDfHSR7VpUiBTAItlyCGrK/EzS+a8Tj+rmu2nuPbgd4Mwuu73HFU/7+L3Mc5iYKZW Ged46mbQTjYJR+UzyRrmTMC4zcHaaJ8W5MhoL4G696JeDHXDnjZVht1K2wlD1uICj/wX PkRtsp+eS+I/IyCu+OAsfP3a37OEs+3lyVbWh9BNTJmP4VAhICmTQN3Z9twNBqlOBXSq QtfA== MIME-Version: 1.0 Received: by 10.236.143.106 with SMTP id k70mr29452861yhj.38.1337747247743; Tue, 22 May 2012 21:27:27 -0700 (PDT) Received: by 10.146.86.8 with HTTP; Tue, 22 May 2012 21:27:27 -0700 (PDT) In-Reply-To: References: Date: Wed, 23 May 2012 14:27:27 +1000 Message-ID: Subject: Re: [AE] Expression to maintain speed From: jarret langmeire To: After Effects Mail List Content-Type: multipart/alternative; boundary=20cf303ea62680435204c0ac8d78 --20cf303ea62680435204c0ac8d78 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable 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 wrote: > You could try adding the loopOut() expression to your keyframed property > like so... > > loopOut("continue", numKeyframes=3D0); > > This will maintain the speed between the two keyframes as a constant spee= d > 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 wrote= : > > > Hi everyone, > > > > I've been trying to figure this out and have given up. I'm using a ligh= t > 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 sta= rt > and end point are closer together. I imagine there must be an expression > that can handle this but alas, expressions are not my fort=E9. > > > > Any help would be greatly appreciated, > > > > Jarret > > > > +---End of message---+ > To unsubscribe send any message to > --=20 -- Jarret --20cf303ea62680435204c0ac8d78 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi David,

Unfortunately that won't work since the ti= me 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() expressio= n to your keyframed property like so...

loopOut("continue", numKeyframes=3D0);

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.ghos= ttownmedia.com
O: 213.739.2290
C: 818.391.6060
---------------------
http://www.sydefxink= .com
http://aeioweyo= u.blogspot.com
http://mactex.blog= spot.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 usi= ng a light as an emitter to send out pulses to various locations within a 3= d 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 l= ocation - in keyframe world the number of frames between the starting and e= nding position would obviously need to be further apart the longer the dist= ance 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 express= ion that can handle this but alas, expressions are not my fort=E9.
>
> Any help would be greatly appreciated,
>
> Jarret
>

+---End of message---+
To unsubscribe send any message to <ae-list-off@media-motion.tv>

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Jarret

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