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how to track props

Posted: Wed Sep 14, 2011 12:24 pm
by kitesflyer
How can I track the motion of a sword in a characters hands inside of Arena? any one please suggest me.

Re: how to track props

Posted: Wed Sep 14, 2011 2:54 pm
by Seth Steiling
Hi Kitesflyer,

You should use the Rigid Body Wizard to create a new trackable object in ARENA. For more info, you can watch the Rigid Body Wizard video under "Defining Skeletons and Rigid Bodies" here:

http://www.naturalpoint.com/optitrack/p ... rials.html

Re: how to track props

Posted: Thu Sep 15, 2011 1:20 pm
by kitesflyer
Thank you Seth :)

Re: how to track props

Posted: Tue Sep 20, 2011 4:50 am
by kitesflyer
Hi seth I did it,I placed 4 markers on a sword prop and followed the procedure mentioned in the tutorial.It tracked properly now I trajectorized and exorted bvh from the takes but the rigid body motion is not getting trajectorized neither can I figure out how to take the motion of the sword prop and apply it to an actual object in Softimage.Any suggestions would help me.

Re: how to track props

Posted: Tue Sep 20, 2011 3:51 pm
by yoshi
Hi Kitesflyer,

After trajectorizing, you can export it as bvh or fbx. If bvh, make sure to select the sword rigid body in the Skeleton dropdown list in the BVH options of the Export dialog.

Re: how to track props

Posted: Tue Sep 20, 2011 8:41 pm
by kitesflyer
Thanks Yoshi

Re: how to track props

Posted: Wed Sep 21, 2011 1:50 am
by kitesflyer
oops! I did that but nothing comes in the exported bvh :(
I get only the body mocap no extra joints or so in the bvh.

Re: how to track props

Posted: Thu Sep 22, 2011 4:21 am
by kitesflyer
anybody here plz give me any idea to export the motion of the rigid body.I am stuck :(

Re: how to track props

Posted: Sun Sep 25, 2011 6:11 am
by kitesflyer
My request to support plz help if possible.Nothing comes in the exported bvh I get only the body mocap no extra joints or so in the bvh.I tried what yoshi said but the sword rigid body in the Skeleton dropdown list in the BVH options of the Export dialog is not showing,its only showing "rigid body" but this one always shows up no need to select it.then what am I doing wrong???

Re: how to track props

Posted: Sun Sep 25, 2011 11:01 pm
by NaturalPoint - Mike
Kitesflyer - I'll take a look at this again when we open on Monday and see if I can't find the reason for the export failure. What version are you using again?