MIME-Version: 1.0
Date: Thu, 9 Aug 2012 13:25:52 +1000
Message-ID: <CAF_BvP4wnaG07AkaAzCpoURV2i+owTa0dLhNEjH62amxUDR8WA@mail.gmail.com>
Subject: Scaling camera shake
From: jarret langmeire <langmeire@gmail.com>
To: After Effects Mail List <AE-List@media-motion.tv>
Content-Type: multipart/alternative; boundary=e89a8f234567e5ce4404c6ccc8c1

--e89a8f234567e5ce4404c6ccc8c1
Content-Type: text/plain; charset=ISO-8859-1

Hi all,

I've been attempting to solve this problem over a couple of projects now
and have always had to resort to a temporary patch. I've finally caved and
am going to see if the AE List can help.

I've filmed some tracking markers which I've tracked in AE and generated
keyframes to apply to my camera in order to simulate a realistic camera
shake. That's all fine and works but what I'd like to do is to be able to
scale these values, probably via an expression control effect on a null or
something like that - the reason I want to be able to scale is to a/. tone
down or up the overall effect and b/. scale the effect over time so that
shake increases over time for example.

The obvious (to me anyhow) approach would be to use an expression that
divides the position value by 2 (for example) in order to reduce the amount
of shake. That certainly halves the overall range of the position but it
also shifts the camera's position to a new location as opposed to leaving
the camera at the specified location but to wiggle it within the range
specified by the tracked motion.

Using parenting works but only if I don't scale the effect. I get the sense
that Dan Ebberts' article
here<http://www.motionscript.com/articles/speed-control.html> is
related but unfortunately I've not been able to make the leap.

Thanks for any kind of help on this.
--

Jarret

--e89a8f234567e5ce4404c6ccc8c1
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Hi all,<div><br></div><div>I&#39;ve been attempting to solve this problem o=
ver a couple of projects now and have always had to resort to a temporary p=
atch. I&#39;ve finally caved and am going to see if the AE List can help.</=
div>
<div><br></div><div>I&#39;ve filmed some tracking markers which I&#39;ve tr=
acked in AE and generated keyframes to apply to my camera in order to simul=
ate a realistic camera shake. That&#39;s all fine and works but what I&#39;=
d like to do is to be able to scale these values, probably via an expressio=
n control effect on a null or something like that - the reason I want to be=
 able to scale is to a/. tone down or up the overall effect and b/. scale t=
he effect over time so that shake increases over time for example.=A0</div>
<div><br></div><div>The obvious (to me anyhow) approach would be to use an =
expression that divides the position value by 2 (for example) in order to r=
educe the amount of shake. That certainly halves the overall range of the p=
osition but it also shifts the camera&#39;s position to a new location as o=
pposed to leaving the camera at the specified location but to wiggle it wit=
hin the range specified by the tracked motion.</div>
<div><br></div><div>Using parenting works but only if I don&#39;t scale the=
 effect. I get the sense that Dan Ebberts&#39; article=A0<a href=3D"http://=
www.motionscript.com/articles/speed-control.html">here</a>=A0is related but=
 unfortunately I&#39;ve not been able to make the leap.</div>
<div><br></div><div>Thanks for any kind of help on this.</div>--<div><br></=
div><div>Jarret</div><br>

--e89a8f234567e5ce4404c6ccc8c1--