From: "Byron Nash" <AE-List@media-motion.tv>
Received: from mail-qt1-f182.google.com ([209.85.160.182] verified)
  by media-motion.tv (CommuniGate Pro SMTP 6.1.0)
  with ESMTPS id 7231192 for AE-List@media-motion.tv; Wed, 16 Jan 2019 21:36:56 +0100
Received: by mail-qt1-f182.google.com with SMTP id d19so8829520qtq.9
        for <AE-List@media-motion.tv>; Wed, 16 Jan 2019 12:46:23 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20161025;
        h=mime-version:from:date:message-id:subject:to;
        bh=a1k8I114YzMZHYn0FADlL13HbOCfu6gx/Y93ci2bNtg=;
        b=iS9hA5uO6Qklrz7o8qs2DqCR7ECXG9U4p8HWx1pookf0JT2b/AYDSJVfxwpXyhdzVZ
         pHpe7YrWrTCE9NoCjv0UikSlK0/r684V04wefaXnOyND7FOSn6F2tbJPwIkXG4KoQLHt
         dxOG1Gmb6DrJNo9xe0HY1F4GuWq1ZXCD8b+u8ptEmqjRp4xYsyyxn4mu/y+lk9c+n7nF
         Z2/vSsXSi59GX3rLJ7xWxGGFkZa0j0HPbpl2uxLc0zfYze4qToNYrkQFKS2M89pITKiT
         FOUSWxMuEyzlema6JaKheLUBeGttnS3YTfwnZrd1gexH6lx7d1IIWfan/ot9Kr8MsGl8
         X1WQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20161025;
        h=x-gm-message-state:mime-version:from:date:message-id:subject:to;
        bh=a1k8I114YzMZHYn0FADlL13HbOCfu6gx/Y93ci2bNtg=;
        b=ViqeECuduFh6ycmYAxi0gPOU2MJxgLFQPd/Z6Cy1P36fNft5tv4VEZE2blVAzv7VH9
         GlJWsyYCjIjwFoJhnorDiZutgff+b0FVkL5aI77N6KANhIMLFVqaA6/WvLjiEktQ507+
         3XA98tKodFzK4O4xXUpT3V60O/baVzDIS/QtuHnufrfRY4J/OqTFc0mwdKEeXwT89EGp
         8SWdJgVHLrnr15k+t+wzWmww1x9LYb6zpKIQnG09sH4DHQMdE723hMgpUn1tmbJeAsBb
         xSVp9xa9G9kuULB9Tj+ygVzElzfcDwE9tBlx5XdMxGKngJYceeGfbgXTSQOnxM1ZUKOn
         tvYw==
X-Gm-Message-State: AJcUukcn2L93+zF4I9jOgnqijYn/9p14smeOfJhw9PJv9K7So7ExlV54
	lqbu7kjJq51+8Y5B6aTQKvExi1m2MZA6MwnWkmpJ4d+x
X-Google-Smtp-Source: ALg8bN7yji36bYH7nenWbXTNchBukOkXr7qKuc6nk4KiualBCPghoIyRgnEu+e62SPyDOm1COSmwf97sO91deITh5ww=
X-Received: by 2002:ac8:285c:: with SMTP id 28mr8498113qtr.54.1547671581269;
 Wed, 16 Jan 2019 12:46:21 -0800 (PST)
MIME-Version: 1.0
Date: Wed, 16 Jan 2019 15:46:09 -0500
Message-ID: <CANGV+5ox0sXjtX-3dhEBv5TSffdD5BJCfULusPh3BKMkCX8rpQ@mail.gmail.com>
Subject: sourceRectAtTime() on 3D layers
To: After Effects Mail List <AE-List@media-motion.tv>
Content-Type: multipart/alternative; boundary="000000000000d4a555057f995ece"

--000000000000d4a555057f995ece
Content-Type: text/plain; charset="UTF-8"

I have a null that is being scaled by a text layer's bounding box. It's
working fine in 2D space. However I just changed the layers to 3D and tried
to animate and I'm getting some problems. I am trying to use a marker to
tell it when to pull the sourceRect. I've put that marker after the
animation is over and the text is squared up. However, as the text moves
I'm seeing some motion on the scale values. I thought the sourceRect
function was supposed to only pull from the value you supplied in the time
value?


L= effect("Text layer 1")("Layer"); //layer choice comes from the drop down
tM = thisLayer.marker.key(1).time; //get the time from the marker on when
to sample the bounding box
R=L.sourceRectAtTime(tM, true); //get the rect
extraScale = effect("ExtraScale")("Slider");
  //log all the corners
UL = L.toComp([R.left,R.top]);
UR = L.toComp([R.left+R.width,R.top]);
LR = L.toComp([R.left+R.width,R.top+R.height]);
LL = L.toComp([R.left,R.top+R.height]);
maxX = Math.max(UL[0],UR[0],LR[0],LL[0]);
minX = Math.min(UL[0],UR[0],LR[0],LL[0]);
maxY = Math.max(UL[1],UR[1],LR[1],LL[1]);
minY = Math.min(UL[1],UR[1],LR[1],LL[1]);

tS = (maxX-minX) / (100 / L.transform.scale[0]);
//width guide null layer
gWidth = thisComp.layer("width guide").transform.scale[0];
x = transform.scale[0];

if (tS > gWidth){ //get the parent scale if there is one
oS = tS;
}else{oS = gWidth}

o = gWidth / oS;
x = x * o ;
[x + extraScale, x + extraScale]

--000000000000d4a555057f995ece
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><div style=3D"text-align:left"><font face=
=3D"arial, helvetica, sans-serif">I have a null that is being scaled by a t=
ext layer&#39;s bounding box. It&#39;s working fine in 2D space. However I =
just changed the layers to 3D and tried to animate and I&#39;m getting some=
 problems. I am trying to use a marker to tell it when to pull the sourceRe=
ct. I&#39;ve put that marker after the animation is over and the text is sq=
uared up. However, as the text moves I&#39;m seeing some motion on the scal=
e values. I thought the sourceRect function was supposed to only pull from =
the value you supplied in the time value?</font></div><div style=3D"text-al=
ign:left"><font face=3D"arial, helvetica, sans-serif"><br></font></div><div=
><font face=3D"monospace, monospace" color=3D"#0000ff"><br></font></div><di=
v><font face=3D"monospace, monospace" color=3D"#0000ff">L=3D effect(&quot;T=
ext layer 1&quot;)(&quot;Layer&quot;); //layer choice comes from the drop d=
own</font></div><div><font face=3D"monospace, monospace" color=3D"#0000ff">=
tM =3D thisLayer.marker.key(1).time; //get the time from the marker on when=
 to sample the bounding box</font></div><div><font face=3D"monospace, monos=
pace" color=3D"#0000ff">R=3DL.sourceRectAtTime(tM, true); //get the rect</f=
ont></div><div><font face=3D"monospace, monospace" color=3D"#0000ff">extraS=
cale =3D effect(&quot;ExtraScale&quot;)(&quot;Slider&quot;);</font></div><d=
iv><font face=3D"monospace, monospace" color=3D"#0000ff">=C2=A0 //log all t=
he corners</font></div><div><font face=3D"monospace, monospace" color=3D"#0=
000ff">UL =3D L.toComp([R.left,R.top]);</font></div><div><font face=3D"mono=
space, monospace" color=3D"#0000ff">UR =3D L.toComp([R.left+R.width,R.top])=
;</font></div><div><font face=3D"monospace, monospace" color=3D"#0000ff">LR=
 =3D L.toComp([R.left+R.width,R.top+R.height]);</font></div><div><font face=
=3D"monospace, monospace" color=3D"#0000ff">LL =3D L.toComp([R.left,R.top+R=
.height]);</font></div><div><font face=3D"monospace, monospace" color=3D"#0=
000ff">maxX =3D Math.max(UL[0],UR[0],LR[0],LL[0]);</font></div><div><font f=
ace=3D"monospace, monospace" color=3D"#0000ff">minX =3D Math.min(UL[0],UR[0=
],LR[0],LL[0]);</font></div><div><font face=3D"monospace, monospace" color=
=3D"#0000ff">maxY =3D Math.max(UL[1],UR[1],LR[1],LL[1]);</font></div><div><=
font face=3D"monospace, monospace" color=3D"#0000ff">minY =3D Math.min(UL[1=
],UR[1],LR[1],LL[1]);</font></div><div><font face=3D"monospace, monospace" =
color=3D"#0000ff">=C2=A0=C2=A0</font></div><div><font face=3D"monospace, mo=
nospace" color=3D"#0000ff">tS =3D (maxX-minX) / (100 / L.transform.scale[0]=
);</font></div><div><font face=3D"monospace, monospace" color=3D"#0000ff">/=
/width guide null layer</font></div><div><font face=3D"monospace, monospace=
" color=3D"#0000ff">gWidth =3D thisComp.layer(&quot;width guide&quot;).tran=
sform.scale[0];</font></div><div><font face=3D"monospace, monospace" color=
=3D"#0000ff">x =3D transform.scale[0];</font></div><div><font face=3D"monos=
pace, monospace" color=3D"#0000ff"><br></font></div><div><font face=3D"mono=
space, monospace" color=3D"#0000ff"><span style=3D"white-space:pre">	</span=
>if (tS &gt; gWidth){ //get the parent scale if there is one</font></div><d=
iv><font face=3D"monospace, monospace" color=3D"#0000ff"><span style=3D"whi=
te-space:pre">		</span>oS =3D tS;</font></div><div><font face=3D"monospace,=
 monospace" color=3D"#0000ff"><span style=3D"white-space:pre">	</span>}else=
{oS =3D gWidth}</font></div><div><font face=3D"monospace, monospace" color=
=3D"#0000ff"><br></font></div><div><span style=3D"white-space:pre"><font fa=
ce=3D"monospace, monospace" color=3D"#0000ff">	</font></span></div><div><fo=
nt face=3D"monospace, monospace" color=3D"#0000ff"><span style=3D"white-spa=
ce:pre">	</span>o =3D gWidth / oS;</font></div><div><font face=3D"monospace=
, monospace" color=3D"#0000ff"><span style=3D"white-space:pre">	</span>x =
=3D x * o ;</font></div><div><font face=3D"monospace, monospace" color=3D"#=
0000ff">[x + extraScale, x + extraScale]</font></div></div></div>

--000000000000d4a555057f995ece--