On our side we usually have to deal with a mixture of FK and IK data,
where we have tools to plot IK clips to FK to make things blendable for
the mixer. It appears you have come to a similar solution... :)
Regarding the scripting, things will get less convenient if you try to
change a clip's contents or deal with any kind of blending or offset
effect...
Cheers!
-André
kim aldis wrote:
I finally got around to looking at this properly over the weekend and
I’ve come up with a reasonable workaround. At least useable for the
previz we’re doing right now.
I knocked up a little tool that would scan a clip – usually the
selected one – and make a static snapshot clip of all the parameters
contained in the clip, values set to whatever they happen to be at the
current frame. This means I can make a clip, guaranteed to be
blendable with the source clip but with my character in any position I
choose, either snapped from the clip or posed.
Now, given clips A and B, which won’t blend, I position the timeline
at the end of A and snapshot it, then at the beginning of B and
snapshot that. Now I place the snap of A under the beginning of B and
the snapshot of B under the end of A, blend their weights to ease in
at the start and end of their matched clips. Now I can mix between A/B
and snapped A/B and guarantee a smooth blend.
It also means I’ve a nice way of posing characters using a consistent
set of parameters for blending, according to need. Which is very useful.
The snapshot tool was very simple to write.
*From:* owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] *On
Behalf Of *André Adam
*Sent:* 15 August 2006 14:24
*To:* XSI(at)Softimage.COM
*Subject:* Re: mixer: blending between static and fcurve poses
Ouch! The very reason we have been scripting the whole mixer
workflow... good luck then...
-André
kim aldis wrote:
Turns out it’s a couple of things. The stock static poses are all FK
poses, none of the IK controllers are stored and we’re animating
mostly IK. Add to this that storing statics stores everything but
storing fcurve stores only fcurves, leaving behind all those things
you don’t need to animate. We also have a couple of problems with one
or two of the rigs. Dumb stuff like poses changing when you key a
particular element or heads turning 90 degrees when you turn clips
into compounds. The can is open, now we just need all the worms to die.
Of course, there’s workarounds but we’re too deep and we’re stuck with
the rigs we have right now. To a large extent we live with it and
swear a lot.
*From:* owner-xsi(at)Softimage.COM <mailto:owner-xsi(at)Softimage.COM>
[mailto:owner-xsi(at)Softimage.COM] *On Behalf Of *porl
*Sent:* 14 August 2006 23:51
*To:* XSI(at)Softimage.COM <mailto:XSI(at)Softimage.COM>
*Subject:* Re: mixer: blending between static and fcurve poses
I hate to ask such a basic question but it's not an Animation Mixer
Properties> Normalize thing, is it?
kim aldis wrote:
Is anyone having problems blending between static and fcurve actions
in the mixer? I’m consistently getting jumps between these even though
the parameters stored are identical in each action, other than just
being static and fcurve.
www.kim-aldis.co.uk <http://www.kim-aldis.co.uk> | kim(at)aldis.org.uk
<mailto:kim(at)aldis.org.uk>
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