[ANSWERED] Position Data --> Data Visualization

emullis

Hi there.
I'm working with the Rokoko Smartsuit Pro and would like to display the x,y,z data for particular joints from the Rokoko Studio Live Watcher. That is, I'd like the audience to just see the streaming data of, say, the x coordinate of the left elbow. Is there a way to capture and display this?

Thank you for any assistance!

Woland

@emullis

Text Formatter and Text Draw are likely the actors you are looking for.

QUICK EXAMPLE FILE: tracking-displaying-rokoko-data-4.1.3-2026-06-09.izz

Woland

@emullis said:

I'd like the audience to just see the streaming data of, say, the x coordinate of the left elbow

If you right-click the Rokoko Studio Live Watcher and select the top option from the contextual menu ("Show Actor Help in Browser") there's a list of joint names. Rokoko doesn't have a tracker on the elbow, so you need to pick 'left-upper-arm', 'left-lower-arm', or do some math yourself to figure out the likely position of the elbow.

These joint names can be put into the 'point sel' input of the Skeleton Decoder actor to make it show data for just that joint (or just the selected joints if you provide a list).

emullis

This is wonderful. Thank you.

That said, Izzy is now crashing every time that I start steaming data from Rokoko Studio in. It works fine if I don't use the Rokoko Studio watcher or if I don't stream the data. If data is streaming and I add a watcher into a patch; crash. If I have a watcher already in and then turn on streaming in Studio; crash.

Here's what I'm running:

- Izzy 4.1.1
- Rokoko Studio 2.6.1 (most recent version)
- MacBook Pro - M2 Pro - Tahoe 26.3.1

Please let me know next steps.

Woland

@emullis

Questions for you:

Can you try in Isadora 4.1.3 (the most recent public version)?
Can you try with the legacy version of Rokoko Studio?
Are you working with a Rokoko SmartSuit Pro II, or the first version of the Rokoko SmartSuit Pro?

emullis

1. I'm using Isadora 4.1.3. I entered the wrong version in my original post.
2. I checked it with Legacy, and Izzy is not crashing with that version.
3. I'm working with the SmartSuit Pro II. The crash happens when I stream from the suit or from a mocap recording (e.g., no suit). Not sure if that matters.

Woland

@emullis said:

SmartSuit Pro II

There are two flavors of Pro II. One is designed to be used with the Smart Gloves, and one isn't. Which flavor are you working with, and, if it's the gloves one, are you using the gloves or not?

emullis

Mine is the no Smart Gloves flavor.

Woland

@emullis said:

2. I checked it with Legacy, and Izzy is not crashing with that version.

Ah, and so you can't use the v2 Suit with the legacy version of the software?

emullis

That's right. To test out Legacy, I streamed one of the pre-packaged mocap recordings into Izzy. That worked fine; no crash.

To reiterate the problem, I used the same setup for a show back in January, and everything worked great. The only difference now is software. I updated Izzy to 4.1.3 a few weeks ago. Rokoko required me to update the Studio software to the current version a week or so ago.

To reiterate the problem: the setup is: v2 Smartsuit, recent version of Rokoko Studio, Izzy 4.1.3, and a MacBook Pro). The crash happens when I wear the suit or stream a recording of me in the suit. I have both softwares running and, when I click "Activate" on the streaming option in Studio, the Studio Live Watcher starts receiving data and then Izzy crashes. Sometimes the crash happens immediately and, at others, it takes a few minutes to happen. I've been sending the crash reports, assuming that's helpful.

Let me know any thoughts / suggestions.

Best,
Eric

emullis

Quick follow-up: I completely shutdown and restarted my Mac and restarted. No crashes.