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-   -   question on linking markers in Vicon (https://forum.worldviz.com/showthread.php?t=2520)

llqqff 02-15-2010 01:17 PM

question on linking markers in Vicon
 
Hi, I know vizard can link the vicon marker to some object like:
#Add a vicon marker
marker = viz.add('vicon.dls')
#Add a 3d ball to represent the marker
ball = viz.add('white_ball.wrl')
#Link the 3d ball to the marker
ball.link(marker)
Then is it possible to link a set of markers into vizard? Now I have vicon motion capture system and we capture human's movement. there are 53 markers in total for a subject, is it able to connect these markers to an avatar in Vizard directly? I know I can use live character. Thanks.

Jeff 02-16-2010 05:20 PM

For motion capture our solution uses Motionbuilder to get the motion capture data, perform the inverse kinematics and map that to a skeleton and the Live Characters plug-in to stream the skeleton data into Vizard.

Moh200jo 04-09-2010 04:38 AM

Hi,
I am aware if I need to use Vizard's avatar i have to use the livecharcater, but if I can export a skeleton from 3dsmax how can link the makers to the 3dsmax skeleton?
is there any way can be used to control avatar through Vicon and Vizard without livecharcater?

Gladsomebeast 04-12-2010 05:32 PM

Mojo,

You can access the Vicon data through Vizard's Vicon plug-in.

It is possible to animate an avatar with a tequniqe know as inverse kinematics. Inverse kinematic maps Vicon points to avatar bone rotations.

This is a hard problem. Seach inverse kinematics in google for resources.

Moh200jo 04-13-2010 05:23 AM

HI Paul,
Thanks for your post. I know the solution would be the IK and it is a hard way if I choose. is there any possibility to use PyKDL package?
Thanks,

Gladsomebeast 04-13-2010 09:36 AM

KDL looks cool! Defintaly a possible solution for you.

Keep us updated =), would love to see how your experence with KDL is.


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