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Swordplay
Posted: Fri May 20, 2011 1:47 am
by Punchey
I'm just starting out with Arena and am about to do some mocap for swordplay. Can someone point me to the exact recommended marker accessories in the store that would be best for attaching to a sword prop? I'm not really clear on the various kinds available and what their various advantages/uses are.
Also, how many of each is recommended per prop?
Thanks!
Re: Swordplay
Posted: Fri May 20, 2011 12:15 pm
by Seth Steiling
For an easy, removable option, you could go with a combination of 7/16" Hard Markers + 1" Hard Bases. The markers snap onto the bases, which can be easily glued onto props.
The minimum marker count is 3 per object, but I recommend 4 for a small prop and up to 6 or so for a large one. The extra markers provide some redundancy, in case ARENA loses tracking of one of the markers.
Re: Swordplay
Posted: Sun May 22, 2011 11:09 am
by Punchey
Thanks very much! Since these props may be moving fast, will the size of the marker make a big difference? I mean, if the cameras will be placed at their maximum distance, and the sword are swung very quickly, would the 7/16" work just as well as the 5/8" or 3/4"?
Re: Swordplay
Posted: Mon May 23, 2011 11:17 am
by Seth Steiling
The size of the marker shouldn't have a significant impact on tracking, when taking the speed of the object into account. If anything, a smaller marker will potentially be better at higher speeds. But it should be a trivial difference, either way.
Re: Swordplay
Posted: Wed Sep 14, 2011 12:34 pm
by kitesflyer
I want to do the same thing in Arena that is a sword fight mocap. but don't know how to,is there any manual or tutorial on capturing prop motion in Arena?
Can anybody please help me doing it?
Re: Swordplay
Posted: Wed Sep 14, 2011 2:52 pm
by Seth Steiling
Hi Kitesflyer,
You can watch the Rigid Body Wizard under "Defining Skeletons and Rigid Bodies" here:
http://www.naturalpoint.com/optitrack/p ... rials.html