Re: rubik's cube

[Oz Adi <oz(at)broadcast.co.il>]

Helge! you just saved my a$$

I was pretty much starting to get really stressed with this project :)
when we accepted it, I thought a few animated constraints will do the trick,
I will not bore you with all the details, but  failing with this 
project, would probably cause me to loose my job...

If I was a princess, you would be my hero :)

thank you so much!

Oz.



Helge Mathee wrote:
> please. we did this so long back ;)
>
> I love rubik.
>
> go ahead, animate and be happy.
>
> http://217.160.138.15/helge/rubik.jpg
>
> http://217.160.138.15/helge/rubik.mov
>
> http://217.160.138.15/helge/rubik.emdl
>
> the only limitation of this baby is that each animation step has to be a multiple of exact 90 degrees.
> well - I guess that's kind of obvious.
>  
>
> -----Original Message-----
> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of kim aldis
> Sent: Wednesday, October 31, 2007 12:45 PM
> To: XSI(at)Softimage.COM
> Subject: RE: rubik's cube
>
> Probably mostly because it begs for local rotation and this is one of the few cases where you can't really apply to 2 axis only rule. Have you tried doing the 3 cascaded null thing, one null for each axis. I'd use nulls anyway, rather than freezing. More flexibility.
>
>
>   
> > -----Original Message-----
> > From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On 
> > Behalf Of pingo van der brinkloev
> > Sent: 31 October 2007 16:33
> > To: XSI(at)Softimage.COM
> > Subject: Re: rubik's cube
> >
> > That's pretty much about right... to be certain it took only one more 
> > turn on my test for it to freak out. Got it going 6 rounds though!...
> > also seemed to easy...
> >
> > beer's on me!
> >
> > pingo
> >
> > On 31/10/2007, at 16.11, André Adam wrote:
> >
> >     
> > > Be careful, that should pretty much immediately get you into gimbal 
> > > lock trouble.
> > >
> > >    -André
> > >
> > >
> > > pingo van der brinkloev wrote:
> > >       
> > > > ok I got a really easy solution.
> > > >
> > > > Make 9 boxes and distribute them 3x3x3 (the cube)
> > > >
> > > > select all the cubes and center their center in 0,0,0
> > > >
> > > > Now you can select sides and rotate them and it works like it
> > > >         
> > should.
> >     
> > > > Just remember to flatten the animation keys.
> > > >
> > > > cheers!
> > > >
> > > > pingo
> > > >
> > > > On 31/10/2007, at 14.47, Adam Seeley wrote:
> > > >
> > > >         
> > > > > Oop, went too soon,
> > > > >
> > > > > How about .... lattices that cover each of the 6 sides, which are 
> > > > > then applied during each rotation, frozen and removed after the 
> > > > > animation?
> > > > >
> > > > > Again, not very interactive or scrubbable.
> > > > >
> > > > > Adam.
> > > > >
> > > > >           
> > > > > > -----Original Message-----
> > > > > > From: owner-xsi(at)Softimage.COM
> > > > > > [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Adam Seeley
> > > > > > Sent: 31 October 2007 13:38
> > > > > > To: XSI(at)Softimage.COM
> > > > > > Subject: RE: rubik's cube
> > > > > >
> > > > > > How about
> > > > > >
> > > > > >             
> > > > > > > -----Original Message-----
> > > > > > > From: owner-xsi(at)Softimage.COM
> > > > > > > [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Oz Adi
> > > > > > > Sent: 31 October 2007 13:35
> > > > > > > To: XSI(at)Softimage.COM
> > > > > > > Subject: Re: rubik's cube
> > > > > > >
> > > > > > > thanks guys, for the info.
> > > > > > >
> > > > > > > I've already tried the freeze transforms idea, and it does
> > > > > > >               
> > > > > > work, the
> > > > > >             
> > > > > > > only thing that bothers me is, when the client want to change
> > > > > > >               
> > some
> >     
> > > > > > > animation, it should be a nightmare (I need to do a 25-30
> > > > > > >               
> > > > > > sec one shot
> > > > > >             
> > > > > > > animation)
> > > > > > >
> > > > > > > To try and improve this method,
> > > > > > > I am thinking of having a square curve near each of the
> > > > > > >               
> > > > > > cube's side,
> > > > > >             
> > > > > > > and  a ppg with 6 boolean switches, each switch for each
> > > > > > >               
> > > > > > sqaure curve,
> > > > > >             
> > > > > > > as the animator, it's my responsibility to make sure, only
> > > > > > >               
> > > > > > one switch
> > > > > >             
> > > > > > > can be on in a given time.
> > > > > > > Then have a scop on each little cube, to check which switch
> > > > > > >               
> > > > > > in on, and
> > > > > >             
> > > > > > > rotate with it's corresponding square curve this is of course, 
> > > > > > > some kind of a "simulation", meaning I cannot scrub the
> > > > > > >               
> > > > > > timeline, because
> > > > > >             
> > > > > > > the little cubes has no keyframes.
> > > > > > > image: http://www.ozadi.com/pix/rubiks.jpg
> > > > > > > but maybe after the animation is approved I can plot their
> > > > > > >               
> > > > > > transfomrs.
> > > > > >             
> > > > > > > what do you think?
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Joe Laffey wrote:
> > > > > > >               
> > > > > > > > On Wed, 31 Oct 2007, kim aldis wrote:
> > > > > > > >
> > > > > > > >                 
> > > > > > > > > You can pull them apart easily enough if you want to see
> > > > > > > > >                   
> > > > > > how they
> > > > > >             
> > > > > > > > > work. Peel the colours off and you'll see the screws
> > > > > > > > >                   
> > > > > > that hold it
> > > > > >             
> > > > > > > > > together.
> > > > > > > > >                   
> > > > > > > > No need to remove screws to take the Rubik's apart. Just
> > > > > > > >                 
> > > > > > > turn one side
> > > > > > >               
> > > > > > > > 45 degrees, and then either stick a flathead screwdriver, or
> > > > > > > >                 
> > your
> >     
> > > > > > > > thumb under the middle cube of the row and lift.
> > > > > > > >
> > > > > > > >
> > > > > > > > I am sure there is Google/YouTube reference for this.
> > > > > > > >
> > > > > > > > --
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