Re: Re[10]: Scaling and Rotating Envelopes & a wee bit more

[Adam Sale <adamsale(at)shaw.ca>]

no biped rig needed
----- Original Message ----- 
From: "Christopher" <walksfar(at)netscape.ca>
To: "Adam Sale" <XSI(at)Softimage.COM>
Sent: Tuesday, January 31, 2006 5:06 PM
Subject: Re[10]: Scaling and Rotating Envelopes & a wee bit more


> Hello Adam.  I see well I used the technique you mentioned under the
> Character menu and it seemed to have done the job.  Except do you have
> to use Biped Rig? for it to work?
>
> Christopher
>
> Tuesday, January 31, 2006, 2:48:46 PM, you wrote:
>
> > exactly.. bounding planes work on flat planar surfaces.. (check it
> > out with an implicit grid and cube.. under the Constraint menu..)
>
> > so for uneven ground.. there isn't much you can do..
> > There is a tool in the character menu which allows you to take a
> > progressive walk and motion deform a flat planar walk along uneven
> > terrain using a kind of shrink wrap on curves.
>
> > You have to use Biped tags (check the manual for this one) to
> > define a COG, left foot and right foot)
>
> > and you need at least two steps animated of a progressive walk to get the 
> > effect to work..
>
> > i prefer to animate such things by hand though
>
> > Adam
>
> > ----- Original Message -----
> > From: Christopher <walksfar(at)netscape.ca>
> > Date: Tuesday, January 31, 2006 9:31 am
> > Subject: Re[8]: Scaling and Rotating Envelopes & a wee bit more
>
> > > Hello Adam, well I'm going to tackle it shortly.  Just what you mean
> > > by a bounding plane? The ground he walks on is not flat though it has
> > > some curves (hills) slightly.
> > >
> > > Christopher
> > >
> > > Tuesday, January 31, 2006, 11:01:52 AM, you wrote:
> > >
> > > > Hey Chris.. Set key on keyable parameters is the new 5.0 option..
> > > > You can set it iun File > Preferences > animation..
> > >
> > > > As far as foot contacts.. the best and easiest way is to just hand
> > > > animate the legs and watch for penetration of the feet through the
> > > > ground. It takes all of about 2 or 3 keys to lock this down and
> > > will save you a lot of headache..
> > >
> > > > If you are using a flat plane .. you can use a bounding plane
> > > > constraint, but if the object you are using as a bounding plane is
> > > > rotated off its flat end that contacts the ground... you may not
> > > get the effect you want..
> > >
> > > > You could make a footroll... but the setup is a touch more involved
> > > > and in my opinion isn't always the easiest to animate with if you
> > > > are doing anything other than a walk cycle.
> > >
> > >
> > > > As for setting up keying parameters per object or (multi) check out
> > > > the keyable parameters editor  under view > animation > keyable
> > > parameters editor
> > >
> > > > Glad its all working out man !
> > >
> > > > Irie
> > >
> > > > Adam
> > >
> > > > ----- Original Message -----
> > > > From: Christopher <walksfar(at)netscape.ca>
> > > > Date: Monday, January 30, 2006 6:45 pm
> > > > Subject: Re[6]: Scaling and Rotating Envelopes & a wee bit more
> > >
> > > >> Hello Adam, I did my rig from scratch this time look me less
> > > time then
> > > >> before ! Anyhow it is great now how it is setup.  I have two
> > > questions>> though my character will follow a not so straight
> > > ground as in it has
> > > >> some hills is there any way when animating I could make sure
> > > the feet
> > > >> don't fall into the ground? If I constrain to ground I'm afraid it
> > > >> will just keep the feet looked to the ground?  And the other
> > > question>> is it seems when auto key frame is on XSI creates a key
> > > almost all the
> > > >> time, now I know they added some maya functionality to XSI 5.x
> > > >> which I
> > > >> am not using at the moment is it better for keyframes? as in
> > > requiring>> less or can this be also done on 4.2 ?
> > > >>
> > > >> Christopher
> > > >>
> > > >> Monday, January 30, 2006, 12:59:25 PM, you wrote:
> > > >>
> > > >> > a rebuild sounds like it is needed. I do see a small prob.. The
> > > >> > null you use to scale the skel is a parent of a model node
> > > itself.>> > Generally, you only need one model node per character.
> > > >>
> > > >> > Without more info, its sort of difficult to trouble shoot
> > > anymore.>> > I am nowhere near an xsi workstation at the moment.
> > > But after
> > > >> > wednesday I could be of more help..
> > > >>
> > > >> > I wrote a few rigging tutorials a while back, on www.joncrow.com
> > > >> > that may help you out with your hierarchy... Have you tried
> > > removing>> > any animation from your character?
> > > >> > Adam
> > > >>
> > > >> > ----- Original Message -----
> > > >> > From: Christopher <walksfar(at)netscape.ca>
> > > >> > Date: Sunday, January 29, 2006 9:48 pm
> > > >> > Subject: Re[4]: Scaling and Rotating Envelopes
> > > >>
> > > >> >> Hello Adam, I tried that no luck.  I have attached a screen
> > > >> shot
> > > >> >> of my
> > > >> >> schemetic view a portion of it so you can see.  I re-read
> > > what you
> > > >> >> said and even made a new model and made the two children,
> > > same
> > > >> thing>> occurred.
> > > >> >>
> > > >> >> Christopher
> > > >> >>
> > > >> >>
> > > >> >> Sunday, January 29, 2006, 9:28:18 PM, you wrote:
> > > >> >>
> > > >> >> > model( poly mesh) and skeleton / rigging pieces should not
> > > be in
> > > >> >> > the same hierarchy. Both should be children of a model ...
> > > >> >> Create > Model > New model
> > > >> >>
> > > >> >> > make all of your skeleton components children of a null,
> > > then
> > > >> make>> > the null a child of the model ( not the polymesh)
> > > >> >>
> > > >> >> > Now select the null that is parent of the skel pieces and
> > > >> scale
> > > >> >> that.
> > > >> >> > Adam
> > > >> >>
> > > >> >> > ----- Original Message -----
> > > >> >> > From: Christopher <walksfar(at)netscape.ca>
> > > >> >> > Date: Sunday, January 29, 2006 9:03 am
> > > >> >> > Subject: Re[2]: Scaling and Rotating Envelopes
> > > >> >>
> > > >> >> >> I forgot to mention I have it setup like this:
> > > >> >> >>
> > > >> >> >> Model is parent of my rig and it's all enveloped.  So I
> > > have a
> > > >> >> >> envelope on a model I have been taking the model null
> > > which
> > > >> branch>> >> selects the model + the chains (rig) but my mesh
> > > gets
> > > >> all
> > > >> >> twisted what
> > > >> >> >> am I doing wrong or a work-a-around?
> > > >> >> >>
> > > >> >> >> Christopher
> > > >> >> >>
> > > >> >> >>
> > > >> >> >> Sunday, January 29, 2006, 11:34:52 AM, you wrote:
> > > >> >> >>
> > > >> >> >> > rotate or scale the parent object of your skeleton
> > > chain. You
> > > >> >> >> > needn't ever scale, rotate or move the envelope itself.
> > > I
> > > >> >> have no
> > > >> >> >> > problems scaling a character up or down if I follow
> > > this
> > > >> >> guideline.>> > That being said... its always best to get the
> > > >> >> proportions of
> > > >> >> >> > characters, sets, props etc. correct so that you don't
> > > in
> > > >> >> fact have
> > > >> >> >> > to perform any kind of SRT manipulation of the
> > > character
> > > >> >> after the
> > > >> >> >> > fact. You'll find it can cause all sorts of little
> > > >> problems
> > > >> >> down the
> > > >> >> >> > line... ie bump scale gets thrown off
> > > >> >> >>
> > > >> >> >> > Adam
> > > >> >> >>
> > > >> >> >> > ----- Original Message -----
> > > >> >> >> > From: Christopher <walksfar(at)netscape.ca>
> > > >> >> >> > Date: Saturday, January 28, 2006 2:16 pm
> > > >> >> >> > Subject: Scaling and Rotating Envelopes
> > > >> >> >>
> > > >> >> >> >> How do you rotate a model with a
> > > >> >> >> >> envelope but keep everything intact, currently when
> > > >> >> >> >> I rotate my mesh is getting all twisted up.
> > > >> >> >> >> And one other thing scalling a model when enveloped
> > > same
> > > >> >> thing
> > > >> >> >> is
> > > >> >> >> >> occuringmy model is getting deformed not keeping
> > > proportions.>> >> >> >>
> > > >> >> >> >> ---
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> > > >> >> >> >>
> > > >> >> >>
> > > >> >> >> > ---
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> > > >> >> >>
> > > >> >> >>
> > > >> >> >> -- 
> > > >> >> >> Best regards,
> > > >> >> >> Christopher                            walksfar(at)netscape.ca
> > > >> >> >>
> > > >> >> >> ---
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> > > >> >> -- 
> > > >> >> Best regards,
> > > >> >> Christopher                            walksfar(at)netscape.ca
> > > >> > ---
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> > > >>
> > > >> -- 
> > > >> Best regards,
> > > >> Christopher                            walksfar(at)netscape.ca
> > > >>
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> > > --
> > > Best regards,
> > > Christopher                            walksfar(at)netscape.ca
> > >
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> --
> Best regards,
> Christopher                            mailto:walksfar(at)netscape.ca
>
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