T-rex animation

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

THREAD CLOSED
 
Thread Tools Search this Thread Display Modes
Old 02 February 2005   #1
T-rex animation

hi!

a few weeks ago, I posted a still of my t-rex:
http://www.cgtalk.com/showthread.php?t=205950

and I have promised to animate it. so, here it is, a walkcycle. completely rigged, weighted and animated with soft ik (totally rocks!) in cinema with mocca 2.
i recommend watching it in loop mode, although there is a little interruption, because first and last frame don't fit together completely:

http://mitglied.lycos.de/dinosaurs3d/rex_3.mov

greetings,
günter


 
Old 02 February 2005   #2
Hi Günter
Very nice walkcykle. You have managed to get a great feeling to the moves, he really feels heavy. The neck wobble is also nice. The only thing thats not spotless is the left foot just before he lifts it. It kind of float in the air for a little while.
Rickard
 
Old 02 February 2005   #3
I can't seem to get the link to work. And I can't read German, so I'm not sure what I'm seeing.

Anyone else having a problem??
__________________
http://www.theiguanaden.com
Enjoy every sandwich.– Warren Zevon
 
Old 02 February 2005   #4
edited: Just right click and save the link
Beautiful job!
__________________

Last edited by JacquesPena : 02 February 2005 at 01:24 PM.
 
Old 02 February 2005   #5
That looks really good. My only comment is that the small front "legs/arms" appear to be "dangling" a bit much. Of course, having never seen a T-Rex in motion, that may be just interpretation, but my "gut" feeling is that such a powerful animal would have those limbs under a little more control.

Man, I wish I could do so well...

Brian.
 
Old 02 February 2005   #6
Nice job, günter!

Agree with the other crits. The left foot lifts straight up off the ground without the toes pointing down. Arms might be tucked under the body more when it's wlaking around.

I know when animating my dino, it's difficult to think of what the arms should be doing. On a person, they would swing back and forth.

Best part: neck jiggle!!! Is that a separate Soft IK chain in addition to a structural bone chain for the neck?
__________________
http://www.theiguanaden.com
Enjoy every sandwich.– Warren Zevon
 
Old 02 February 2005   #7
I saved the file, but QT says:

"Couldn't open the file "rex_3.mov" because it is not a file that QuickTime understands."

QT 6.5.2 Pro here.
__________________
Greebler | InterPoser

C4D-R16, VS2012, Xcode 4.6
 
Old 02 February 2005   #8
Kuroyume0161: I had the same problem. It may be your browser. I'm on a Mac and I first tried it in OS 9, Netscape 4.7, IE 5 (I know...very old). Then I tried it in OS 10, Netscape 7, and it downloaded OK and played fine.

I don't think it downloads properly in some browsers.
__________________
http://www.theiguanaden.com
Enjoy every sandwich.– Warren Zevon
 
Old 02 February 2005   #9
thanks for the comments!

i have noticed that issue with the foot leaving the ground too early. i'll try to fix that.

the wabbling of the neck is'nt any extra bone chain or something difficult, it's just so simple: it's an animated wind-object restricted to a vertex-selection

greetings
günter
 
Old 02 February 2005   #10
You have GOT to show me how you did that!! Explanation or simple scene file would be very much appreciated!

Even more than muscle simulation I think the thing that sells a creature is the jiggle.

Thanks...
__________________
http://www.theiguanaden.com
Enjoy every sandwich.– Warren Zevon
 
Old 02 February 2005   #11
Originally Posted by bobzilla: Kuroyume0161: I had the same problem. It may be your browser. I'm on a Mac and I first tried it in OS 9, Netscape 4.7, IE 5 (I know...very old). Then I tried it in OS 10, Netscape 7, and it downloaded OK and played fine.

I don't think it downloads properly in some browsers.


Definitely not. Mozilla 1.7.3 and FireFox 1.0 both had difficulties and I've not had problems with QT in them before. IE 6 worked though.

Very nice work, günter!

I'd like to see you extend the animation (fixing those little bugs) and put the T.Rex into its natural environment. A challenge (and a surrogate for stuff that I'd like to eventually do!).
__________________
Greebler | InterPoser

C4D-R16, VS2012, Xcode 4.6
 
Old 02 February 2005   #12
@bobzilla:
i'm sorry but i can't share the file. but i can give you an explanation, it's really simple:

you just take a wind deformation objekt and make it a child of the polygonal mesh of your character. then, you paint a vertex map: just weight the points you want to jiggle. name the vertex-map.
now give your wind-deformer a restriction tag and fill in the name of the vertex-map.
all you have to do now is to adjust the settings of the wind-deformer, that means maybe turn the objekt, adjust amplitude, size and frequency.

in my case, i wanted the skin to jiggle every time he does a step. so, i animated the amplitude of the wind-deformer: when the foot touches the ground, i make a key, and set the amplitude value to a maximum. a bit later, i make another key, with the value at 0.

that's all, hope it helped

günter
 
Old 02 February 2005   #13
Thanks very much for the explaination (I understand about not giving out the file).

I'll give it a try.
__________________
http://www.theiguanaden.com
Enjoy every sandwich.– Warren Zevon
 
Old 02 February 2005   #14
Daaang...

That looks great!! Very cool about the wind technique.
__________________
Eric Gooch
SciFI and Fantasy: CyberGooch
Game Art: GoochVision
Architectural: Archiluma
 
Old 02 February 2005   #15
Very well done TREX walk. And thanks for the wind deformer tip. I'm gonna try it now!

Note. One sees a LOT of dino animations of various qualities in these forums. This is truly one of the most life like. Attention to detail like the neck flab and the dangling paws makes all the difference. Looking forward to seeing more stuff from you. I'm producing a totally CGI feature currently and am on the look out for artists like yourself.

Cheers
__________________
Willie Stevenson
Producer
Silverback productions
 
Thread Closed share thread



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright ©2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 03:05 PM.


Powered by vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.