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See post in moray.win.
- Mikael
Post a reply to this message
Attachments:
Download 'ik_robot.mpg' (531 KB)
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I guess that's 'linear' and not 'cubic' interpolation. I found already it can
be tough to control 'cubic'.
I've seen both yours and Alex's replies to my posting over at the moray.win
group. That answers the question alright.
I like how you made this robot arm model look large and powerful because of the
camera location and slow movements. I had been using the original camera
location from that file and it always seemed to be about the size of a toy.
Bob
"Mikael Carneholm" <sa9### [at] ida utbhbse> wrote in message
news:38AAC75F.E361F7AE@ida.utb.hb.se...
| See post in moray.win.
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| - Mikael
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I am sure that your algorithm is ingenious, but given the motion you
chose, it looks like it could have been done with a simple non-IK
algorithm.
If you had it start with an empty hand, pick up an object from shelf A
and drop it on shelf B, you might get more oohs and aahs.
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Bob Hughes wrote:
> I guess that's 'linear' and not 'cubic' interpolation. I found already it can
> be tough to control 'cubic'.
Oh...sorry...I seem to have missed that it all was about cubic interpolation.
Anyway, I have used cubic interpolation in a "sight-seeing" trip though my
apartment - it works great. Too bad the animation is 40 Mb, otherwise I would have
posted it...
----------------------------------------------------
Mikael Carneholm
Dep. of Computer Science and Business Administration
Personal home page:
http://www.studenter.hb.se/~arch
E-mail:
sa9### [at] idautbhbse
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"Greg M. Johnson" wrote:
> I am sure that your algorithm is ingenious, but given the motion you
> chose, it looks like it could have been done with a simple non-IK
> algorithm.
Hand coded script: no.
Moray animation plugin with cubic interpolation: yes
:)
> If you had it start with an empty hand, pick up an object from shelf A
> and drop it on shelf B, you might get more oohs and aahs.
I know, I did this animation about as soon as I had downloaded the
animation plugin, only to test it. (And to test to animate an IK object).
It could be made _much_ prettier, but I'll leave that to someone else...
:)
----------------------------------------------------
Mikael Carneholm
Dep. of Computer Science and Business Administration
Personal home page:
http://www.studenter.hb.se/~arch
E-mail:
sa9### [at] idautbhbse
Post a reply to this message
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the mission has been set - who can make the most impressive robot arm
animations!!
i like the camera angle changes btw - very nice - much more like a real
movie then the usual pov cyclic efforts :)
Rick
"Mikael Carneholm" <sa9### [at] idautbhbse> wrote in message
news:38AAC75F.E361F7AE@ida.utb.hb.se...
> See post in moray.win.
>
> - Mikael
>
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I've had more troubles again. While trying to rotate those robot model fingers
to open and close they tend to jump to the opposite side of the intended
rotation. Of course that means I'm not using IK all the time but I wouldn't
have thought it to be a problem when switching to translate rotate scale.
And even though I'm now getting the correct behavior of the keyframing there's
still some oddities about the cubic interpolation, I just don't know if it's
also correct and I'm just expecting something else.
I had moved the block away from the robot hand too by cut and paste (wish I knew
of a way to retain the original coordinates as well) so as to remove it from the
robot group and place it on the floor by itself. Then later cut and paste back
into the hand so it's grouped with the robot arm once again after the picking-up
part of the animation.
All in all still a lot for me to learn about all of this. Hope Lutz &
Kretzschmar don't have a media explosion animation in one of those nag boxes
:-) I think my 75.25 US$ is going to be on it's way soon anyhow though.
Bob
"Mikael Carneholm" <sa9### [at] idautbhbse> wrote in message
news:38ABC1F5.7C6160CE@ida.utb.hb.se...
| Bob Hughes wrote:
|
| > I guess that's 'linear' and not 'cubic' interpolation. I found already it
can
| > be tough to control 'cubic'.
|
| Oh...sorry...I seem to have missed that it all was about cubic interpolation.
| Anyway, I have used cubic interpolation in a "sight-seeing" trip though my
| apartment - it works great. Too bad the animation is 40 Mb, otherwise I would
have
| posted it...
|
| ----------------------------------------------------
| Mikael Carneholm
| Dep. of Computer Science and Business Administration
|
| Personal home page:
| http://www.studenter.hb.se/~arch
| E-mail:
| sa9### [at] idautbhbse
|
|
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