Have you seen these tutorials?

https://support.troikatronix.com/support/search?term=DMX

Best regards, 

Jean-François

Re: [DMX and Isadora](/topic/3237/dmx-and-isadora)

Hi, 

I'm having some difficulties finding documentation or how to resources for integrating DMX into an Isadora project. 

I have found some actors at the "ADD ONS" page. And I also found a forum post by Gunther from 2017 that had some info but some of the links seem to have expired.

So Im wondering.... 

if there are any other more up-to-date resources around that would be a good place to start from? and

What actors on the add on page would be good to start with. [I did find an actor on Github "ENTTEC-DMX-USB_lightcontrol.izz" that looks simple but I get nervous about downloading things from git-hub.]

All I am wanting to do is throw some symapathetic/complimentary lighting into a courtyard where I have a fairly simple projection of coloured objects. Perhaps responding to the different hues of the coloured objects perhaps. I think have access to an Enttec ODE MkII and Chauvet DJ D-fi(?) Hub unit for testing/development. I've seen Enttec mentioned in a few posts about izzy.

Currently on izzy 3 and financially challenged.

cheers

J

@eamon

Ok, Ill try it in the break,

Capturing on ssd nearly killed it... 

Thank you

@eva

- Turn on Syphon in Isadora in stage set up

In OBS, on the bottom left, there is the box for sources.

Click on the + button to bring up the source option

You should see Syphon in the pop up menu.

When you select Syphon, then you need to set the source e.g. Isadora Stage 1.

Your syphon feed should appear in the left hand preview window. Use CUT or the slider to bring the preview into the output pane.

You might need to check the Settings (Bottom RIght tab) for the quality of the recording.

Click on Record. It will default to the movie folder.

Best of luck with it.

screenshot-2026-02-21-at-09.52.33.pngscreenshot-2026-02-21-at-09.52.56-resized.png

@eamon

Oh I realised something from that,

I put it as a QuickTime movie, that makes the file 15 gb for just 5 min. 

Ill try also record to an ssd... for now since I need to figure out the obs and first show is in half an hour:)

Thanks

With 55gb left, you might get a warning that you are low on space if your drive is a Terabyte, since this would put you below 5% drive space pretty quickly.

Assuming you are using the MP4 / H264 Record Stage Setup - Codec:

🎥 Typical 1080p H.264 Bitrates

The Data Rate can be set in the Record Stage Setup dialog, via the 'Max Data Rate' selector. 
You really shouldn't need to use anything higher than 12 Mbps.

Here are some specs on recording transfer sppeds:

🎥 Typical 1080p 30fps H.264 Bitrates

Your external USB drive (assuming SSD) is likely fast enough for the job.
I use Black Magic Designs Disk Speed Test to verify my drive speeds for such things.
It is included in the FREE Black Magic Desktop Video software:  Blackmagic Design Downloads

@eva

It sounds like you have a lot of items on your HD. 1hr of HD video is about 10GB and your buffer is probably getting overloaded etc.

If you can free up some space, you might have more chance of getting a record but nonetheless, try the OBS/wirecast route and hopefully it will record a better copy without stressing your remaining space.

eamon

hi Eamo,

Thank you! I am on a mac studio M1. Today I tried to record directly in Isadora with 55gb space left. After about 25 minutes I got a message that there was not enough space to proceed. So I am a bit surprised and try to find solutions. 

It is only ghe visual I need. 

All the best 

Eva

@eva

Hi Eva

Without knowing much more and in the interim of awaiting better minds to come along, would it make sense to pipe your isadora feed into OBS or similar?

Maybe by making the recording there it might lessen the size and strain on your computer? You can achieve this via syphon or NDI?

It would probably be better to record direct to your internal drive versus an external one too. 

Without a greater picture of your machine specs and patch, that is what I would try first. I have never recorded directly in Isadora. 

If you wish to have the audio too, you need a piece of software called, BlackHole. This will help route the audio internally to OBS etc. I believe you still need this app or similar to route audio for recording. 

My 2cents

Hope this helps.

Eamon

hello,

I need to record 1 hour in HD quality, a live show in isadora, but it seems it consumes a lot of space. Can somone help me how to do that? Can I maybe place it somehow on my ssd drive that has usb ( not usb c)?

All ghe best Eva