[Bf-animsys] Does anybody really use (and like) Copy Scale with Offset?

Alexander Gavrilov angavrilov at gmail.com
Mon Mar 5 09:29:06 CET 2018


>  but as I also want to be able to manually scale the bone, I use the
offset option.

Well, thing is though, although you can manually scale the bone, the scale
doesn't combine in any sensible way, and you can even end up with negative
scale if scaling down.


On Sun, Mar 4, 2018 at 6:44 PM, Juan Pablo Bouza <jpbouza at hotmail.com>
wrote:

> I have that option in use for some very specific cases in my rig, like
> when I need a bone to inherit Loc and Rot from the parent bone, but scale
> from another bone. Therefore, I use the copy scale option to inherit scale
> from another bone (in pose or world space), but as I also want to be able
> to manually scale the bone, I use the offset option. Of course, I also have
> to turn off the inherit scale option in the bone, otherwise the offset
> option in world space makes the bone inherit the scale from all the bones
> that go up the hierarchy.
>
> Anyway, that's how I use it, but as Ton said in an interview, at some
> point in the near future, the Animation 2020 project will start and If the
> plan is to replace the constraint system with nodes, maybe it doesn't make
> much sense to go changing things right now. Sometimes undesired behaviors
> for some users might be desired behaviors for others. The node system might
> be the answer for many issues that we have right now 😊
>
> ------------------------------
> *De:* Bf-animsys <bf-animsys-bounces at blender.org> en nombre de Nathan
> Vegdahl <nathanvegdahl at gmail.com>
> *Enviado:* domingo, 04 de marzo de 2018 12:13 a.m.
> *Para:* Discussion list to assist animation developers
> *Asunto:* Re: [Bf-animsys] Does anybody really use (and like) Copy Scale
> with Offset?
>
> Personally, I don't think I've ever used the Offset option on any of
> the constraints.  I always use an extra bone and parenting for such
> cases.  But I may be weird in that respect...
>
> --Nathan
>
> On Fri, Mar 2, 2018 at 11:30 PM, Alexander Gavrilov
> <angavrilov at gmail.com> wrote:
> > Hi,
> >
> > As implemented, Copy Scale with the Offset option for some reason
> > _adds_ the scales together like with rotation and location, which
> > makes no sense because scale is a multiplicative quantity. This
> > means that properly combining scales can only be done with multiple
> > bones and parenting, while the constraint is useless.
> >
> > I think 2.8 may be a good opportunity to break strict backward
> > compatibility and fix this historical problem.
> >
> > Alexander
> >
> >
> > _______________________________________________
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