Ah I see! Should have thought of that instead... :X Works great! I'll
get around to scripting this into a button...
Thank you all for replying to this simple question!
Yours sincerely,
Siew Yi Liang
On 2/28/2014 9:36 AM, Manny Papamanos wrote:
Just equals expression a null to follow all 3 pos axis of the hip.
Now replace the posy expression and just put "5" (let say) in the expression
editor for the nulls posy.
Constrain the cam/effector to that null.
Now you can use CnsComp.
-manny
AD Si and Mobu support
From: [email protected]
[mailto:[email protected]] On Behalf Of Siew Yi Liang
Sent: Friday, February 28, 2014 12:21 PM
To: [email protected]
Subject: Re: Constrain in only one axis instead of all 3?
Hmm maybe let me describe my problem a bit more...
I have a character that I'm planning to make run/jump forward etc. I would like
to make an animation camera that follows his movement as he moves forward in
space but without manually keying it (for now). So what I usually do elsewhere
is just constrain the camera to his COG and then disable the constraint for
axes that I don't need (otherwise vertical and horizontal movement combined in
a camera is really vomit-inducing :P)
Right now my solution is:
null constrained to hip control (where this control's translates do not change
as the animation progress)
direct expression camera root axis = null axis
But this doesn't let me keep the initial offset that the camera had (turning on
ChildComp doesn't help unfortunately)...for now this is a simple workaround but
I'm worried about in future what if I have to tackle a similar issue but with
this exact same problem? Which is why I was wondering if anyone uses a simpler
solution or if I have missed something about XSI constraints that allow for
this...
Yours sincerely,
Siew Yi Liang
On 2/28/2014 9:01 AM, patrick nethercoat wrote:
ah yes, i see.
how about setting the neutral pose on the constraining object (use current
pose) before drag/dropping? May be a workaround for your situation if you can
cope with the offset in your fcurves.
On 28 February 2014 16:29, Siew Yi Liang
<[email protected]<mailto:[email protected]>> wrote:
Hi patrick:
Yes, I could make an expression that way, but I want a kind of automatic way to
keep the constrained object at its original position (sort of having constraint
compensation on) while making the expression...other than manually typing the
offset values myself I was wondering if there was a better way to do this? (As
sometimes the offset values won't always be readily available if there is a
neutral pose, other things interfering etc...)
Yours sincerely,
Siew Yi Liang
On 2/28/2014 8:08 AM, patrick nethercoat wrote:
you can drag+drop fcurve widgets to create a constraint. that way you choose
which axes are affected.
or am i missing?
On 28 February 2014 16:00, Siew Yi Liang
<[email protected]<mailto:[email protected]>> wrote:
http://i.imgur.com/1rTjJXd.png
I can only do offsets so far using the standard UI...I've been looking through
the docs as well for something that can help me out but I haven't seen anything
yet that relates to this :X
Yours sincerely,
Siew Yi Liang
On 2/28/2014 7:51 AM, Sebastien Sterling wrote:
isn't it an option in the pose constrain PPG ?
On 28 February 2014 16:43, Siew Yi Liang
<[email protected]<mailto:[email protected]>> wrote:
Hello!
Had a quick question among all this current hullabuloo, hopefully it's not too
silly...I was actually looking for a way to limit constrain to one/two axes in
XSI on pos/rot/scale constraints, is there a way to do this in the constraint
parameters itself? I can't find any such option...
Right now what I'm doing is making a null, using an expression to link whatever
axes I want to the first constraining object, and then constraining my 2nd
object to that null to get around the problem (because I need the 2nd object to
remain in place. I feel like what I'm doing is a little silly though, does
anyone use a better way or have I missed something really obvious in the
constraint PPG?
Been doing some searching around and I couldn't find anything on this...
Any help would be appreciated! :D
Yours sincerely,
Siew Yi Liang
