@Eva

The links don't work.

Best regards

Jean-François

Here is the file: Essen

Here is the patch: Ess

hello,

I am recording a stage like usual, but now all that shows is a black recording nothing visual. It fits with the size of my stage(4 projectors) but nothing shows, only black video. Can someone help? 

I tried recording in e.g. q4 and q5

All the best Eva

@karlakr8

The file has a number of User Actors, from your description I am not sure which one is the root of the failure. 

1. does this user actor allow you to select a file on your hardrive?
2. does the filepath get inserted to the next user actors 'cube_path' input?

DX - PY - Load .Cube for Color Grading :

1. does the 'status' output change if you click the 'load' input trigger
2. if you open this user actor to look inside, do you see a red Hazard symbol on the Pythoner actor?
3. is the status output = "status: ❌ LUT file not found"

I suspect you will see the red hazard on the pythoner actor once you look inside the "status: ❌ LUT file not found" actor. 
Like this: 

If you do, then the Python environment is not setup correctly. Scene one requires Numpy be installed, and scene 2 requires Numpy and OpenCV.

If you go to Help/Open Plugin folder in the menu, and read the last line on that menu you should see 'Python Virtual Environment' ... 
What does the rest of that line say?

note: The asci error might have been due to unexpected characters in a file name/path. 

Hello. 
I am trying this patch, but can't get past the file browse step. 

I have the Python environment is set up and active.. But I cannot load a cube file. My browser lets me select a file, but the actor says, "No file selected." And once, and I cannot tell exactly how and why, I had an ASCII error as follows: Error: 'ascii' codec can't decode byte 0xe2 in position 197: ordinal not in range(128).

I tried a multitude of LUT files, all with the .cube extension, but no success.

What am I missing out? 

Any help would be appreciated :)

MacBook Pro 16" 2021, M1 Max, 32 GB / Isadora 4.5

@bonemap

Hi Russell, I'm good, thanks. super busy with Oulu being European Capital of Culture this year, but surviving.
Thanks for loads of useful information. I've been using optical HDMI on the road for a few years and its great. More sturdy than I expected. The lighter weight seems to help to keep stress off the plugs.
I decided not to go for the 2012 MacPro - with that particular graphics card there's no hardware sync lock between the outputs, so no guarantee that all 4 quadrants would be running accurately. No budget for a M5 Max, so I've ordered a used M2 Mac Mini for the playback into the Saeda. Cable runs are short, so no worries there - all HDMI cables can be the same length.

The projectors arrived yesterday and, at first test, the image is super sharp. and they don't get hot. The only obvious design flaw is that the mounting points underneath look a bit flimsy, and are strangely distributed - I will probably build some mounting brackets out of ply and leave them bolted to the projectors.

So it looks like this is the first video installation project I've made in the last 18 years that doesn't use Isadora at all! 

@dbini

Hello how are you?

I am currently setting up for a 4 x projector show in a building site. 3 x projectors illuminate an hexagonal structure 1 x projector is stand alone. I will be blending the hexagonal with a Stage blend in Isadora with a second Stage for the single projector.

I also have a 2012 trashcan Mac Pro - but I will not be using it. Instead, I will use a MacBook Pro M5 Max which has the capacity for the 4 x video output leaving the built in screen for live control.

For my setup there is a fair amount of cable run and I spent some time figuring out what cabling to use that can deliver over long distances. Recently, in a theatre, we deployed Decimator branded video converters to send video from hdmi through SDI cable lengths to 3x Epson Pro laser projectors in the grid. This worked great with only minor issues with latency being uneven across the three sends. Well, the theatre owned the stash of Decimator devices and SDI cable runs, it worked because my Epson Pro projectors have SDI inputs reducing the need for the signal to be converted back to hdmi at the projector end.

This time I don’t have access to the Decimator/SDI solution. And costing it out for 4x Decimator devices and 4x long SDI cable runs went well above what I can spend currently. So I have invested in 4 x Active Optical hdmi cables and compatible thunderbolt/display port dongles. The cables are still expensive but have the converter electronics housed in the cable ends resulting in a solution that is considerable cheaper than converting to SDI. However, the cables are said to be more fragile and perhaps less robust ‘on the road’. This will be the first time using them. If anyone has experience using the AOC hdmi cables would be interested to hear.

The thing with the 2012 trashcan is compatible dongles (thunderbolt 2?) and the cable lengths required to distribute to your ST laser projectors.

Best wishes

Russell

@dbini said:

splitting a 4K 30fps video into 4x HD

 I believe so.

bumping this thread with an update and a question.

So I ordered 4x Optoma Laser ST projectors (new ones aime at the golf sim market)

I have access to a Seada 4K pro video wall controller to split the image into 4. It doesn't handle edge blending, but has facility to overlap screens, so I will make a blended edge in my output video.
BUT. I just discovered an old MacPro 2012 for sale. running High Sierra. Specs say it can output 6 video streams. So I could potentially do all the mapping and edge blending in Isadora. Do you think it could handle splitting a 4K 30fps video into 4x HD?