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From: Robert Kjettrup <robert@stvmayday.dk>
Date: Wed, 26 Sep 2012 15:35:02 +0200
Message-ID: <CAFu=taZU+_ccXFZ9v6bOcxPNJP=+WriZQTRv3qs4bKedBQQd_Q@mail.gmail.com>
Subject: Re: [AE] expression for facing away layers in precomp
To: After Effects Mail List <AE-List@media-motion.tv>
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Thanks for the tip, but wont work in this case, since the precomps are not
the same dimensions as the master comp, and the precomps also have animated
translation in the master comp.
So i think an updated expression is the only way to go, or doing it
manually with keyframes.... my last resort :-)



Robert Kjettrup / Grafiker / STV Mayday
Mobil: 25 18 95 16
Mail: robert@stvmayday.dk


2012/9/26 Py Fave <pyfave@gmail.com>

> perhaps linking precomp camera's attributes to the main comp's one.
>
> tell me if it works!
>
>
> 2012/9/26 Robert Kjettrup <robert@stvmayday.dk>:
> > Hi
> >
> > I am using this expression to make the layers that face away from the
> camera
> > be invisible.
> >
> > if (toCompVec([0, 0, 1])[2] > 0 ) value else 0
> > (found via Dan's site here:
> > http://www.motionscript.com/design-guide/invisible-facing-away.html)
> >
> > But when i use the comp as a precomp with continious rasterize option
> turned
> > on, the 3d layers that i has the expression ofcourse don't respect  the
> > camera in the master comp. Is it possible to write an expression that
> uses
> > the display camera in the master comp that affects the opacity og the 3d
> > layers in the continious rasterized precomp?
> >
> >
> > Robert Kjettrup / Grafiker / STV Mayday
> > Mobil: 25 18 95 16
> > Mail: robert@stvmayday.dk
>
> +---End of message---+
> To unsubscribe send any message to <ae-list-off@media-motion.tv>
>

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<span style=3D"color:rgb(34,34,34);font-family:arial,sans-serif;font-size:1=
3px;background-color:rgb(255,255,255)">Thanks for the tip, but wont work in=
 this case, s</span><span style=3D"background-color:rgb(255,255,255);color:=
rgb(34,34,34);font-family:arial,sans-serif;font-size:13px">ince the precomp=
s are not the same dimensions as the master comp, and the precomps also hav=
e animated translation in the master comp.=A0</span><div>

<span style=3D"background-color:rgb(255,255,255);color:rgb(34,34,34);font-f=
amily:arial,sans-serif;font-size:13px">So i think an updated expression is =
the only way to go, or doing it manually with keyframes.... my last resort =
:-)</span><div>

<div><font color=3D"#222222" face=3D"arial, sans-serif"><br></font></div><d=
iv><font color=3D"#222222" face=3D"arial, sans-serif"><br clear=3D"all"></f=
ont><br clear=3D"all">Robert Kjettrup / Grafiker / STV Mayday<br>Mobil: 25 =
18 95 16<br>

Mail: <a href=3D"mailto:robert@stvmayday.dk" target=3D"_blank">robert@stvma=
yday.dk</a><br>
<br><br><div class=3D"gmail_quote">2012/9/26 Py Fave <span dir=3D"ltr">&lt;=
<a href=3D"mailto:pyfave@gmail.com" target=3D"_blank">pyfave@gmail.com</a>&=
gt;</span><br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;=
border-left:1px #ccc solid;padding-left:1ex">

perhaps linking precomp camera&#39;s attributes to the main comp&#39;s one.=
<br>
<br>
tell me if it works!<br>
<br>
<br>
2012/9/26 Robert Kjettrup &lt;<a href=3D"mailto:robert@stvmayday.dk">robert=
@stvmayday.dk</a>&gt;:<br>
<div><div class=3D"h5">&gt; Hi<br>
&gt;<br>
&gt; I am using this expression to make the layers that face away from the =
camera<br>
&gt; be invisible.<br>
&gt;<br>
&gt; if (toCompVec([0, 0, 1])[2] &gt; 0 ) value else 0<br>
&gt; (found via Dan&#39;s site here:<br>
&gt; <a href=3D"http://www.motionscript.com/design-guide/invisible-facing-a=
way.html" target=3D"_blank">http://www.motionscript.com/design-guide/invisi=
ble-facing-away.html</a>)<br>
&gt;<br>
&gt; But when i use the comp as a precomp with continious rasterize option =
turned<br>
&gt; on, the 3d layers that i has the expression ofcourse don&#39;t respect=
 =A0the<br>
&gt; camera in the master comp. Is it possible to write an expression that =
uses<br>
&gt; the display camera in the master comp that affects the opacity og the =
3d<br>
&gt; layers in the continious rasterized precomp?<br>
&gt;<br>
&gt;<br>
&gt; Robert Kjettrup / Grafiker / STV Mayday<br>
&gt; Mobil: 25 18 95 16<br>
&gt; Mail: <a href=3D"mailto:robert@stvmayday.dk">robert@stvmayday.dk</a><b=
r>
<br>
</div></div>+---End of message---+<br>
To unsubscribe send any message to &lt;<a href=3D"mailto:ae-list-off@media-=
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</blockquote></div><br></div></div></div>

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