Hello! I'm trying to use the Realsense Depth Camera D435 and the most recent version of the OpenNI Tracker for tracking, and I can't seem to get them to work. OpenNI status stays resolving, and there is no indication that the camera is on. Is there a driver or steps that I'm missing? 

I'm working on macOS Big Sur 

Version 11.2.1 

Isadora Version 3.0.8b57 

Thank you 

@raul said:

Good afternoon! I was having the same problem and could not find the solution, using windows 10 and isadora 3.08 usb version, I just downloaded the plugin again, but it gives me a new error when loading, (DLL Load Error = 0000007E). Always when opening isadora. and it keeps telling me that the plugin cannot be loaded. I have tried deleting the isadora preferences, reinstalling isadora again, with both kinect sdks, and even with another computer with isadora 3.07.

 Dear @raul,

I believe I have worked out the problem. When I tested the plugin on a fresh copy of Windows, I got the DLL error too. (I previously had tested on my development machine, which has extra files that allowed the plugin to run without error.)

In any case, a new version has been uploaded as of 9:26 am Berlin time (3:26am EDT time) on April 24th. 2021.

Please go to the OpenNI Tracker add on page, download the plugin package again (openni-tracker-win-v0.9.8b4.zip), and install the plugins as directed in the READ ME file. (I have not changed the version number, but the contents of the file are different.)

When dragging the three plugins to the shortcut, please make sure to replace the existing plugins as directed in the READ ME.

Report back here or in the ticket you opened if you have any trouble. I'm sorry for the inconvenience.

Best Wishes,
Mark

@lighting273

Have you checked out the Body Tracking Guru Session? It comes with a set of files that may prove useful.

The OpenNI Tracker Tutorial file (for the OpenNI plugins) may also be helpful as a starting point.

This forum thread has some helpful work from @bonemap you could try to incorperate. 

From the TroikaTronix Add-Ons page, there's also this 3d lines puppet for the OpenNI actors, which is also from the fabulous @bonemap.

You could probably also adapt the work that @mark posted in this forum thread.

Searching the forum for "3D particles" may also turn up other treasures for you :)

Best wishes,

Woland

@elena said:

I would also love to know if there is a way to modify the anchor point of a shape. 

 Take a look at my answer in this thread, you may find it, and some of the methods I discuss, to be helpful. There's also a Guru Session that Mark did which covers this topic.

You may also find this (as of yet unreleased) motion tracking mini-tutorial I've made to be helpful. (It's bundled with another mini-tutorial on alpha masks, but the motion tracking one will be the one you'll want to look at for this particular topic.)

@Elena said:

I am researching around and intuitively I would use OPENNI tracker to track my hand and then hook up the motion to the width and height dimensions but, because I don't have a Kinect compatible with the plugin, before I buy it I would like to know if there is a better way, and even if this method can be successful.

If you do end up going the Kinect and OpenNI route, you will want to check out the OpenNI Tracker Tutorial and download the OpenNI Plugins from our Plugin Page.

@jfg said:

to change the anchor point of a shape you can use the FFGLPanSpinZoom actor (spin ctrl x and spin ctrl y). It is not a real anchor point but could simulate it.

This plugin doesn't come with a fresh install of Isadora. You'll need to download the TroikaTronix FFGL plugins from our plugin page and install them if you want to use them. Personally, I use FFGLPanSpinZoom all the time because it's more convenient than using both a Zoomer actor + Panner actor + Spinner actor.

Best wishes,

Woland

@aolis said:

Great that you got this working. I've never even heard of that camera. Cool!

I had difficulty getting any of the tracking features such as body & skeleton.

What is the resolution of the sensor? It has to be 320x240 or 640x480 for the body tracking to work.

Best Wishes,
Mark

Ha okay ;) thanks!

Thanks the floet to integer actor is a good idea, I will play with that1

To reset the actor in case it trackes the background I now decided to use this simple set-up with a comparator defining the max z distance.

Thanks

Thanks for your help, I use the actor smoother and so far moving my sphere is smoother. Thanks again and see you soon. Thierry.