 | | | constraint orientations | constraint orientations 2004-03-23 - By Rafe Sacks
Back
An upvector will always point at an object based target regardless of
the rig and constraints. An vector based upvector (no picked object
target), *I think*, is based on global space which means if you bend
your character past 90 or 180, depending on your rig, it will flip.
I think that was what you meant. I maintain, but am willing to be wrong,
that compensation on a pose constraint is totally stable.
-Rafe
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------
Graham D Clark wrote:
>>On another side note, the ori constraint isn't always predictable when
> using compensation. A Pose Constraint with compensation IS though.
> except on some things,
> like for example,
> a pose cns on a master of rig null, if upvectors are used in your rig.
> the upvs often do not get their ori transforms considered properly as
> master null moves towards degree between 0,90,180 etc.
> -- ---- ---- ---- ---- ---- --
> http://www.grahamdclark.com <http://www.grahamdclark.com/>
>
>
>
> -- --Original Message-- --
> *From:* owner-xsi@(protected) [mailto:owner-xsi@(protected)]
> *On Behalf Of *Rafe Sacks
> *Sent:* March 22, 2004 10:13 PM
> *To:* XSI@(protected)
> *Subject:* Re: constraint orientations
>
> I could be wrong on this, but I think the constraints use the
> transform object to process the results. You can find it in the
> scripting reference docs.
>
> On a side note, plotting isn't always perfect. You have to be very
> careful of what you give plot.
>
> On another side note, the ori constraint isn't always predictable
> when using compensation. A Pose Constraint with compensation IS
> though.
>
> -Rafe
>
>
> Carl Callewaert wrote:
>
>>-They are both objects with no parents. So, global or local
>>doesn't matter.
>>
>>-Constraint Orientation, i am interested in the Math behind it.Yes,
>>maybe it is with to do with quaternionsspace?
>>
>>
>>
>>-- --Original Message-- --
>>From: Martin Matzeder - electricpuppet
>>To: XSI@(protected)
>>Sent: 3/22/2004 3:23 AM
>>Subject: Re: constraint orientations
>>
>>one thing to add: if You need the same fcurves, they have to share the
>>same parent, but then You can copy the fcurves, if they do not share the
>>
>>same parent, it may help You to set expressions on the euler values (
>>object1.xrot = object2.xrot)
>>
>>
>>Martin
>>
>>Martin Matzeder - electricpuppet wrote:
>>
>>
>>
>>>Not sure about this, but I guess that the rotations are converted from
>>>
>>>
>>
>>
>>
>>>Euler to quaternionsspace and then shifted to the contrained object.
>>>So some fcurves can differ but You can not have any problems with
>>>mixing contraints in the mixer.
>>>If I'm wrong please correct me
>>>
>>>cheers Martin
>>>
>>>Carl Callewaert wrote:
>>>
>>>
>>>
>>>>Where can I find the math behind constraint orientations?
>>>>I find it really interesting, as the f-curves are not always
>>>>the same if you plot on object that has constraint orientations.
>>>>
>>>>I notice that plotting of an object with constraint orientations is
>>>>not the
>>>>same as plotting the object which has expressions of rx = rx of the
>>>>another
>>>>of object (the same of ry and rz.)
>>>>Can somebody explain the math behind this?
>>>>
>>>>carl
>>>>
>>>>
>>>>-- --Original Message-- --
>>>>From: Andy Wolf [mailto:xsi@(protected)]
>>>>Sent: Sunday, March 21, 2004 4:33 PM
>>>>To: XSI@(protected)
>>>>Subject: Re: Illustrator CS .eps File Problems
>>>>
>>>>
>>>>There should be an option to save the file as version 7 or 8...
>>>>
>>>>Marc Trzepla wrote:
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>Logos we get from clients made in Illustrator CS (11?) saved as .eps
>>>>>
>>>>>
>>
>>
>>
>>>>>files seem to choke XSI - XSI just flat out and out crashes. There
>>>>>isn't a "make okay for older versions" chooser in the saveout
>>>>>dialogue box so we can't even open the files in older Illustrator
>>>>>apps (sigh, the good old days like version 7.0 ... sniff) to save
>>>>>them from there. (File, Save As, .eps ...)
>>>>>
>>>>>Anyone else having a problem with Ill CS .eps files?
>>>>>
>>>>>Any workarounds?
>>>>>
>>>>>marc
>>>>>
>>>>>__ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ __
>>>>>Get tax tips, tools and access to IRS forms - all in one place at
>>>>>MSN Money! http://moneycentral.msn.com/tax/home.asp
>>>>>
>>>>>
>>>>>---
>>>>>Unsubscribe? Mail Majordomo@(protected) with the following text in
>>>>>
>>>>>
>>
>>
>>
>>>>>body:
>>>>>unsubscribe xsi
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>---
>>>>Unsubscribe? Mail Majordomo@(protected) with the following text in
>>>>body:
>>>>unsubscribe xsi
>>>>
>>>>---
>>>>Unsubscribe? Mail Majordomo@(protected) with the following text in
>>>>body:
>>>>unsubscribe xsi
>>>>
>>>>
>>>>
>>>>
>>>>
>>>---
>>>Unsubscribe? Mail Majordomo@(protected) with the following text in
>>>body:
>>>unsubscribe xsi
>>>
>>>
>>>
>>
>>
>>---
>>Unsubscribe? Mail Majordomo@(protected) with the following text in
>>body:
>>unsubscribe xsi
>>
>>---
>>Unsubscribe? Mail Majordomo@(protected) with the following text in body:
>>unsubscribe xsi
>>
>>
>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859 (See http://ISO-8859.ora-code.com)-1" http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
<font color="#000066">An upvector will always point at an object based
target regardless of the rig and constraints. An vector based upvector
(no picked object target), *I think*, is based on global space which
means if you bend your character past 90 or 180, depending on your rig,
it will flip.<br>
<br>
I think that was what you meant. I maintain, but am willing to be
wrong, that compensation on a pose constraint is totally stable.<br>
<br>
-Rafe</font><br>
<br>
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------<br>
<br>
Graham D Clark wrote:<br>
<blockquote cite="mid004401c410ea$e6da62c0$1501a8c0@(protected)" type="cite">
<meta http-equiv="Content-Type" content="text/html; ">
<title>Message</title>
<meta content="MSHTML 6.00.2800.1170" name="GENERATOR">
<div><span class="225585311-23032004"><font face="Arial"
color="#0000ff" size="2">><font face="Times New Roman"
color="#000066" size="3">On another side note, the ori constraint
isn't always predictable when using compensation. A Pose Constraint
with compensation IS though.</font><br>
except on some things, </font></span></div>
<div><span class="225585311-23032004"><font face="Arial"
color="#0000ff" size="2">like for example, </font></span></div>
<div><span class="225585311-23032004"><font face="Arial"
color="#0000ff" size="2">a pose cns on a master of rig null, if
upvectors are used in your rig.</font></span></div>
<div><span class="225585311-23032004"><font face="Arial"
color="#0000ff" size="2">the upvs often do not get their ori
transforms considered properly as master null moves towards degree
between 0,90,180 etc.</font></span></div>
<div><span class="225585311-23032004"></span>-- ---- ---- ---- ---- ---- --<
/div>
<div><a href="http://www.grahamdclark.com/">http://www.grahamdclark.com</a><
/div>
<div class="Section1">
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<blockquote
style="border-left: 2px solid rgb(0, 0, 255); padding-left: 5px; margin-left:
5px; margin-right: 0px;">
<div class="OutlookMessageHeader" lang="en-us" dir="ltr"
align="left"><font face="Tahoma" size="2">-- --Original Message-- --<br>
<b>From:</b> <a class="moz-txt-link-abbreviated" href="mailto:owner-xsi
@(protected)">owner-xsi@(protected)</a>
[<a class="moz-txt-link-freetext" href="mailto:owner-xsi@(protected)">mailto
:owner-xsi@(protected)</a>] <b>On Behalf Of </b>Rafe Sacks<br>
<b>Sent:</b> March 22, 2004 10:13 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:XSI@(protected)
.COM">XSI@(protected)</a><br>
<b>Subject:</b> Re: constraint orientations<br>
<br>
</font></div>
<font color="#000066">I could be wrong on this, but I think the
constraints use the transform object to process the results. You can
find it in the scripting reference docs. <br>
<br>
On a side note, plotting isn't always perfect. You have to be very
careful of what you give plot. <br>
<br>
On another side note, the ori constraint isn't always predictable when
using compensation. A Pose Constraint with compensation IS though.<br>
<br>
-Rafe<br>
</font><br>
<br>
Carl Callewaert wrote:<br>
<blockquote
cite="mid8C85B3287DC5EB44BC7F8E7EE1FE68B45C9985@(protected)"
type="cite">
<pre wrap="">-They are both objects with no parents. So, global or local
doesn't matter.
-Constraint Orientation, i am interested in the Math behind it.Yes,
maybe it is with to do with quaternionsspace?
-- --Original Message-- --
From: Martin Matzeder - electricpuppet
To: <a class="moz-txt-link-abbreviated" href="mailto:XSI@(protected)">XSI
@(protected)</a>
Sent: 3/22/2004 3:23 AM
Subject: Re: constraint orientations
one thing to add: if You need the same fcurves, they have to share the
same parent, but then You can copy the fcurves, if they do not share the
same parent, it may help You to set expressions on the euler values (
object1.xrot = object2.xrot)
Martin
Martin Matzeder - electricpuppet wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Not sure about this, but I guess that the rotations are
converted from
</pre>
</blockquote>
<pre wrap=""><!---->
</pre>
<blockquote type="cite">
<pre wrap="">Euler to quaternionsspace and then shifted to the
contrained object.
So some fcurves can differ but You can not have any problems with
mixing contraints in the mixer.
If I'm wrong please correct me
cheers Martin
Carl Callewaert wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Where can I find the math behind constraint orientations?
I find it really interesting, as the f-curves are not always
the same if you plot on object that has constraint orientations.
I notice that plotting of an object with constraint orientations is
not the
same as plotting the object which has expressions of rx = rx of the
another
of object (the same of ry and rz.)
Can somebody explain the math behind this?
carl
-- --Original Message-- --
From: Andy Wolf [<a class="moz-txt-link-freetext"
href="mailto:xsi@(protected)">mailto:xsi@(protected)</a>]
Sent: Sunday, March 21, 2004 4:33 PM
To: <a class="moz-txt-link-abbreviated" href="mailto:XSI@(protected)">XSI
@(protected)</a>
Subject: Re: Illustrator CS .eps File Problems
There should be an option to save the file as version 7 or 8...
Marc Trzepla wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Logos we get from clients made in Illustrator CS (11?)
saved as .eps
</pre>
</blockquote>
</blockquote>
</blockquote>
<pre wrap=""><!---->
</pre>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite">
<pre wrap="">files seem to choke XSI - XSI just flat out and out
crashes. There
isn't a "make okay for older versions" chooser in the saveout
dialogue box so we can't even open the files in older Illustrator
apps (sigh, the good old days like version 7.0 ... sniff) to save
them from there. (File, Save As, .eps ...)
Anyone else having a problem with Ill CS .eps files?
Any workarounds?
marc
__ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ __
Get tax tips, tools and access to IRS forms – all in one place at
MSN Money! <a class="moz-txt-link-freetext"
href="http://moneycentral.msn.com/tax/home.asp">http://moneycentral.msn.com
/tax/home.asp</a>
---
Unsubscribe? Mail <a class="moz-txt-link-abbreviated"
href="mailto:Majordomo@(protected)">Majordomo@(protected)</a> with the
following text in
</pre>
</blockquote>
</blockquote>
</blockquote>
<pre wrap=""><!---->
</pre>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite">
<pre wrap="">body:
unsubscribe xsi
</pre>
</blockquote>
<pre wrap="">---
Unsubscribe? Mail <a class="moz-txt-link-abbreviated"
href="mailto:Majordomo@(protected)">Majordomo@(protected)</a> with the
following text in
body:
unsubscribe xsi
---
Unsubscribe? Mail <a class="moz-txt-link-abbreviated"
href="mailto:Majordomo@(protected)">Majordomo@(protected)</a> with the
following text in
body:
unsubscribe xsi
</pre>
</blockquote>
<pre wrap="">---
Unsubscribe? Mail <a class="moz-txt-link-abbreviated"
href="mailto:Majordomo@(protected)">Majordomo@(protected)</a> with the
following text in
body:
unsubscribe xsi
</pre>
</blockquote>
<pre wrap=""><!---->
---
Unsubscribe? Mail <a class="moz-txt-link-abbreviated"
href="mailto:Majordomo@(protected)">Majordomo@(protected)</a> with the
following text in
body:
unsubscribe xsi
---
Unsubscribe? Mail <a class="moz-txt-link-abbreviated"
href="mailto:Majordomo@(protected)">Majordomo@(protected)</a> with the
following text in body:
unsubscribe xsi
</pre>
</blockquote>
<br>
</blockquote>
</blockquote>
<br>
</body>
</html>
|
|
|