@reload2024 Yes and No.


Nvidia Mosaic is basically doing its job at its GPU level. So it has created a lovely big canvas for you, all edge-blended and lovely. But what you want to do is treat them individually.

A few options:

1) Don't use Mosaic? Then you will see everything individually. 

2) Treat the output as a big canvas and then use the tools in Isadora to 'cut out' the bits you need. Look at the crop actors, Matte, Matte++ and look at the Virtual Stages for sure. They can be confusing, but use 5 virtual stages and then bring them all back together using "Get Stage Image" and comp them back into your 1 giant stage output.

I am able to change the opacity of a given quad in Madmapper sending an OSC command from Isadora to the quad's opacity parameter address (/surfaces/Quad-3/opacity).

However, the venue technicians prefer a more crude way to activate/deactivate entire quad from Isadora. In other words they would like to tick off/on the checkbox in the picture:

The problem with this approach is that in order for a given MadMapper parameter to be controlled by OSC signal, one has to attach an "Osc Control" to it in MadMapper. In the case of quad's opacity one right-clicks on a opacity slider and selects "Add OSC control" option from the popup.

Has anybody achieved this in the case activation/deactivation?

Thanks.

P.S. What would be even better is to fade from one Scene to another Scene in Madmapper, using OSC.

I have 5 projectors bundled into a single NVidia mosaic display.   This virtual display of course is the full width of my 5 displays, but I was hoping to use the grid calibration tool in Isadora even though they aren't separate devices anymore.  Is this possible? 

Re: [Sound distribution with the Sound Player Actor](/topic/7727/sound-distribution-with-the-sound-player-actor)

Sound Distribution Problems

Hi, I tried to load my patch for testing sound distribution, which worked fine in Isadora 3. Today, working with Isadora 4 and on Win 11, I got the error message: Isadora has experienced an unexpected error. (ID = -19)

So I tried to recreate sound distribution in a new file. It works fine, as long I do routing without levels, e.g. "1:1,2:4" etc. When I add the volume parameter with "@" sign, the routing doesn't work. e.g. "1:1@50%"

I think, I'll need help with the routing syntax. Is there a different routing syntax?

Thanks for your help!

gunther

https://www.instagram.com/p/DO...

This Sunday (14/09/2025) we will be performing a new dance show in Cologne, Oulu and online. Mycelial Threads has been made using Izzycast to link studios in Finland and Germany. I've made telemetric performances before, using VDO.ninja and OBS, or screen-capturing AV feeds into Isadora and using Syphon Virtual Webcam to get the results out to other venues via Zoom or ninja. But this time, all that is being handled by Izzycast, which has kept the workflow simple and stable, and enabled me to do more complex routing with video and audio - with the added benefit of data transfer, so I can switch between cameras and send lighting cues in the other studio.

If you are in Cologne or Oulu, please come and see the show in person, but if you are elsewhere, you can catch it at taikabox.com

More details, show times and link to the livestream at: https://taikabox.com/mycelial-...

@gaspar

with this setup, i get the same results as you, even with nothing initialised, the trigger is sent when entering the scene

@dbini @DusX @Woland 

Thanks for coming back to me...

The I/O user actor was basically meant to send triggers, but not necessarily when entering the scene.

The input and outputs were not initialised, although I tried to initialise them to zero after seeing this weird behaviour.

From your answers I assume it does not happen on your system.

I even created a blank patch from scratch with a first blank scene and a second scene with only the I/O user actor and a trigger value to check if it is triggered when entering the scene... and YES IT IS.

And this happens also on my second installation of ISADORA on the same computer but DUAL BOOT for just gigs... no internet, no antivirus, etc.

@gaspar
are any of the inputs initialised? Either inside the User Actor, or on the outside?

anybody has recommendations to rent a 3d scanner in Berlin? Or is willing to rent one? 

Thanks!

Alessandra 

@gaspar

It'll definitely trigger if you set the User Output actor inside the User Actor to initialize as blank or at a certain value (depending on data type), but in that case it's just pushing the data that you told it to initialize with.