 | | | reference model, with a referenced skeleton | reference model, with a referenced skeleton 2005-03-21 - By Oz Adi
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thanks! :)
thats pretty complicated.. I'll try to look into it
-- -- Original Message -- --
From: Brad Friedman
To: XSI@(protected)
Sent: Monday, March 21, 2005 2:32 PM
Subject: Re: reference model, with a referenced skeleton
In order to keep a single reference I'd turn to rigging tricks.
trick #1:
Create a quadruped rig in the right proportions.
Save it.
Strip it down to be totally FK.
Save it as.
Load the original.
Strip it down to be animated with the FK arms.
Save it as.
Load the original.
Save it as the IK version.
Envelope the model to the totally FK rig.
Save it.
Reference all three rigs into one scene.
Constrain the totally FK rig to the IK rig.
Store the constraints.
Constrain the totally FK rig to the animation FK rig.
Store the constraints.
Now you can use the mixer to have the rigged character follow either
animation rig when you want.
trick #2:
create a fully IK rig.
create a FK animation rig.
envelope to the IK rig.
import both into a new scene.
constrain the IK rig to the FK rig.
store the constraints.
apply them to the mixer.
animate the FK rig.
plot the IK rig's animation.
Store the plotted animation.
remove the constraint clip from the mixer.
apply the plotted animation to the mixer.
There are a lot of other potential solutions mixed in there. Different ways
of ordering the steps or plotting and constraining to get similar results.
-brad
Oz Adi wrote:
Hi,
We just finished a medium sized project, a 30 sec' commercial with 4 bipeds
, and a quadruped.
It was the first time we tried to work in some sort of pipeline, we used
referenced models,
and it worked really really good!
For our next big project, I have a quadruped that I want to have two Rigs..
a regular Quadruped,
and for some shots, I will be needing the animal to act more like a biped,
standing on its back feet,
doing acting gestures with his arms.
and I wish to have the ability to have FK arms.
The XSI quaruped rig, doesnt handle FK in the front legs, that goood..
becuase some of the bones are constrained to those yellow-blue cubes, if I
swith the arm to FK,
it still tries to stick to those cubes...
the question is:
is it possible to have a referenced model, and use the low-med-high
switches, to switch a rig on the same
model?
I know I can have two independet models with they rigs, but that kills some
of the "referencing"..
so if I need to make changes in the geometry or shaders, I need to do it on
both copies of the mesh...
I guess, weighting wise, it's possible to save weights to disk, and use a
post-script to change the weights..
but how do I change the rig :)
hope it's possible,,
cheers,
Oz.
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<DIV><FONT face=Arial size=2>thanks! :)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>thats pretty complicated.. I'll try to look into
it
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT:
#000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">-- -- Original Message -- -- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=xsibrad@(protected) href="mailto:xsibrad@(protected)">Brad Friedman</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=XSI@(protected)
href="mailto:XSI@(protected)">XSI@(protected)</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, March 21, 2005 2:32
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: reference model, with a
referenced skeleton</DIV>
<DIV><BR></DIV>In order to keep a single reference I'd turn to rigging
tricks.<BR><BR>trick #1:<BR><BR>Create a quadruped rig in the right
proportions.<BR><BR>Save it.<BR><BR>Strip it down to be totally
FK.<BR><BR>Save it as.<BR><BR>Load the original.<BR><BR>Strip it down to be
animated with the FK arms.<BR><BR>Save it as.<BR><BR>Load the
original.<BR><BR>Save it as the IK version.<BR><BR>Envelope the model to the
totally FK rig.<BR><BR>Save it.<BR><BR>Reference all three rigs into one
scene.<BR><BR>Constrain the totally FK rig to the IK rig.<BR><BR>Store the
constraints.<BR><BR>Constrain the totally FK rig to the animation FK
rig.<BR><BR>Store the constraints.<BR><BR>Now you can use the mixer to have
the rigged character follow either animation rig when you want.<BR><BR>trick
#2:<BR><BR>create a fully IK rig.<BR><BR>create a FK animation
rig.<BR><BR>envelope to the IK rig.<BR><BR>import both into a new
scene.<BR><BR>constrain the IK rig to the FK rig.<BR><BR>store the
constraints.<BR><BR>apply them to the mixer.<BR><BR>animate the FK
rig.<BR><BR>plot the IK rig's animation.<BR><BR>Store the plotted
animation.<BR><BR>remove the constraint clip from the mixer.<BR><BR>apply the
plotted animation to the mixer.<BR><BR>There are a lot of other potential
solutions mixed in there. Different ways of ordering the steps or
plotting and constraining to get similar results.<BR><BR>-brad<BR><BR>Oz Adi
wrote:
<BLOCKQUOTE cite=mid000801c52e04$b6b94830$5b64a8c0@(protected)
type="cite">
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<DIV><FONT face=Arial size=2>Hi,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>We just finished a medium sized project, a 30
sec' commercial with 4 bipeds, and a quadruped.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>It was the first time we tried to work in some
sort of pipeline, we used referenced models, </FONT></DIV>
<DIV><FONT face=Arial size=2>and it worked really really good! </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>For our next big project, I have a quadruped
that I want to have two Rigs.. a regular Quadruped,</FONT></DIV>
<DIV><FONT face=Arial size=2>and for some shots, I will be needing the
animal to act more like a biped, standing on its back feet,</FONT></DIV>
<DIV><FONT face=Arial size=2>doing acting gestures with his
arms.</FONT></DIV>
<DIV><FONT face=Arial size=2>and I wish to have the ability to have FK 
;
arms.</FONT></DIV>
<DIV><FONT face=Arial size=2>The XSI quaruped rig, doesnt handle FK in the
front legs, that goood.. </FONT></DIV>
<DIV><FONT face=Arial size=2>becuase some of the bones are constrained to
those yellow-blue cubes, if I swith the arm to FK, </FONT></DIV>
<DIV><FONT face=Arial size=2>it still tries to stick to those
cubes...</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>the question is:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>is it possible to have a referenced model, and
use the low-med-high switches, to switch a rig on the same</FONT></DIV>
<DIV><FONT face=Arial size=2>model?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>I know I can have two independet models with
they rigs, but that kills some of the "referencing"..</FONT></DIV>
<DIV><FONT face=Arial size=2>so if I need to make changes in the geometry
or
shaders, I need to do it on both copies of the mesh...</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>I guess, weighting wise, it's possible to save
weights to disk, and use a post-script to change the
weights..</FONT></DIV>
<DIV><FONT face=Arial size=2>but how do I change the rig :)
</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>hope it's possible,,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>cheers,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Oz.</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
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