Hi there,

I'm hoping someone can help me figure this out. I recently upgraded from Isadora 2.1 to Isadora 4.0.2, and since then have been completely unable to make Isadora project my stages properly. Whenever I attempt to actually send my video to my projector, it seemingly does not receive the signal being sent. I have tried troubleshooting, and it is not anything to do with my connections to the projector, as I was able to get an image on screen when I tested it out with my previous version of Isadora. I even tried creating a whole new showfile to see if perhaps there was something wrong with the one I was working with. This did nothing, as the same problem occurred on the new file. As far as I can tell I configured everything correctly, and I followed along with the tutorial that Troikatronix posted, but I just can not get my video project while using version 4.0.2. 

If anyone has any suggestions for further troubleshooting methods, please let me know, because I am at a bit of a loss for what to try next. I'm using a mac with macOS Mojave 10.14.3, if that helps. Thank you all for your time.

@citizenjoe They're advertised as 850nm and I have an 850nm filter for the camera, so hopefully both companies are telling the truth.

fingers crossed on that one.

@woland said:

Roscolux 19 (x2)) Roscolux 83 (x1) Roscolux 90 (x1)

 It's inferred above, but the gel option will NOT work with most LED lights [edited - sorry]. 

That said, the cheap amazon type options do work well. Just make sure that the wavelength of light output from the fixture matches the wavelength that your camera is looking for.

Cheers,

Hugh

@woland I found a pretty low cost IR led floodlight that's made for CCTV applications. 

I'll have a little play around with them and report back in case my findings are useful to anyone. I suspect I'll need to improvise some barn doors but otherwise this seems like a path to something.

@woland y fear is that as venues switch to LED based lighting there will not be significant IR output from the newer fixtures and I don't want to encounter that on a performance day without time to come up with a solution. That's why I'm looking for something that I can bring with me without relying on in house venue equipment.

Any thoughts?

@woland

Mark goes into detail on the process in this video from the Werkstatt in 2016

@thatmattrogers

I bought four of these from Amazon the other year, and they work fine in a small area. I used them with a hacked CCTV camera with sub-SD quality output. Good enough for basic tracking under theatre lights BUT you have to hack them: they only turn on when the sensor in the centre says it's dark, so you have to unscrew the top and cover over the sensor which is in the middle of the LED array.

@thatmattrogers

There's the option of just combining lighting gels to filter out everything other than IR light. Here's the info I got from the magnificent @primaldivine when I was just learning Isadora back in 2014:

Standard theatre lights focused on the back wall, with lighting gel filters added to each light: Roscolux 19 (x2)) Roscolux 83 (x1) Roscolux 90 (x1)
These four gels will cut out the visbile light spectrum but allow the IR light to still shine from the theatre lights.
NB DO NOT USE THE LIGHTS AT GREATER THAN 50% or they will melt.
Always check the gels often for heat damage and replace as needed.

Hi everyone,

I'm experimenting with Tracking for a small community project with very little budget. 

Because there's quite a lot of ideas floating around where the projection will interact with performers I feel like IR might be a good solution but we don't have access to much equipment.

I have a full spectrum camera and an IR filter so that part should be fine, but I was wondering if people had found any cheap and cheerful off the shelf IR lamps that would do the job sufficiently. 

As we're going to a couple of venues I'd rather bring something with us than rely on filters since I cant guarantee that all of them will have similar equipment and that their lamps will behave in the same manner. (I get a little paranoid when it comes to mission critical equipment, I would kinda prefer something cheap with known limitations than have to problem solve for an unknown element)

Thanks.

Re: [[ANSWERED] Orbbec support on Windows?](/topic/8371/answered-orbbec-support-on-windows)

Hello! I am trying to get the Orbbec Astra to work with Isadora 4 on Windows 11. I downloaded the driver for the Orbbec Astra, and I have followed all instructions in the Isadora OpenNI Tracker document and placed the masquerade file in the actor plug in folder. However, when I go to set up inputs and look for cameras, the Orbbec is not found. My device manager recognizes it as fully functioning, but as a separate "Orbbec" item and not categorized under cameras.

Does anyone have experience with getting the Orbbec Astra to be recognized by Isadora 4?

Thank you!

Lindsay

@judiths

Here's an example file that shows how a Virtual Stage and the Get Stage Image actor might be able to help solve your issue. (Though if you post your actual file with the media I'll be able to understand and help more specifically with what you're trying to do.)

File ---> zooming-content-2025-02-26-4.0.9.izz

Without Virtual Stage:

With Virtual Stage: