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References: <list-5274760@media-motion.tv>
From: Zack Lovatt <zack@zacklovatt.com>
Date: Mon, 4 Nov 2013 19:41:42 -0500
Message-ID: <CAGe1WtU_uBWLHB1K5CFeDt9Nn=TaPE15zyLdWnM3UQP8oRk3_A@mail.gmail.com>
Subject: Re: [AE] Expression
To: After Effects Mail List <AE-List@media-motion.tv>
Content-Type: multipart/alternative; boundary=047d7b3a836a59c0f504ea634e9a

--047d7b3a836a59c0f504ea634e9a
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Even easier! Apply this to the slider.

L = thisComp.layer("Target Layer");
> if (L.transform.opacity.numKeys != 0){
> 0; // If the target layer has any keys, set slider to 0.
> } else {
> value; // If there are no keys, use the slider value.
> }


Or, more concise:

if (thisComp.layer("Target Layer").transform.opacity.numKeys != 0) 0 else
> value;
>

Zack Lovatt
416.786.4129
www.zacklovatt.com


On 4 November 2013 19:36, Phil Spitler <phil@bonfirelabs.com> wrote:

> I'm trying to figure out an expression that will reset a slider to 0 every
> time there is a keyframe in opacity on a specified layer.
>
> I'm guessing it will be some kind of trick where I look at the key(x).time
> and compare it to the current time.
>
> Any ideas?
>
> Cheers.
>
> Phil
>
> *Phil Spitler*  |  Creative Technologist   |  *Bonfire Labs*  |  t :
> 415.394.8200  m : 415.571.3139
>
> Website <http://bonfirelabs.com/> | Facebook<http://www.facebook.com/bonfirelabs>|
> LinkedIn <http://www.linkedin.com/company/235257?trk=tyah>
>
>

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<div dir=3D"ltr"><div>Even easier! Apply this to the slider.</div><div><br>=
</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;b=
order-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:s=
olid;padding-left:1ex">

L =3D thisComp.layer(&quot;Target Layer&quot;);<br>if (L.transform.opacity.=
numKeys !=3D 0){=A0<br><span class=3D"" style=3D"white-space:pre">	</span>0=
; // If the target layer has any keys, set slider to 0.<br>} else {=A0<br><=
span class=3D"" style=3D"white-space:pre">	value</span>; // If there are no=
 keys, use the slider value.<br>

}</blockquote><div><br></div><div>Or, more concise:</div><div><br></div><bl=
ockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-lef=
t-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padd=
ing-left:1ex">

if (thisComp.layer(&quot;Target Layer&quot;).transform.opacity.numKeys !=3D=
 0) 0 else value;<br></blockquote></div><div class=3D"gmail_extra"><br clea=
r=3D"all"><div><div dir=3D"ltr">Zack Lovatt<div><font size=3D"1">416.786.41=
29</font></div>

<div><span style=3D"font-size:x-small"><a href=3D"http://www.zacklovatt.com=
" target=3D"_blank">www.zacklovatt.com</a></span></div></div></div>
<br><br><div class=3D"gmail_quote">On 4 November 2013 19:36, Phil Spitler <=
span dir=3D"ltr">&lt;<a href=3D"mailto:phil@bonfirelabs.com" target=3D"_bla=
nk">phil@bonfirelabs.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmai=
l_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left=
:1ex">

<div style=3D"word-wrap:break-word">I&#39;m trying to figure out an express=
ion that will reset a slider to 0 every time there is a keyframe in opacity=
 on a specified layer.<div><br></div><div>I&#39;m guessing it will be some =
kind of trick where I look at the key(x).time and compare it to the current=
 time.</div>

<div><br></div><div>Any ideas?</div><div><br></div><div>Cheers.</div><div><=
br></div><div>Phil</div><div><br></div><div><div>






<font face=3D"Helvetica Neue"><font color=3D"#536269"><b>Phil Spitler</b>=
=A0

|=A0 Creative Technologist =A0 |=A0 <b>Bonfire
Labs</b>=A0 |=A0 t : <a href=3D"tel:415.394.8200" value=3D"+14153948200" ta=
rget=3D"_blank">415.394.8200</a>=A0 m : <a href=3D"tel:415.571.3139" value=
=3D"+14155713139" target=3D"_blank">415.571.3139</a></font><br>
<font color=3D"#536269"><br>
<a href=3D"http://bonfirelabs.com/" target=3D"_blank">Website</a> | <a href=
=3D"http://www.facebook.com/bonfirelabs" target=3D"_blank">Facebook</a> | <=
a href=3D"http://www.linkedin.com/company/235257?trk=3Dtyah" target=3D"_bla=
nk">LinkedIn</a></font></font>



</div>
<br></div></div></blockquote></div><br></div>

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