We'll post a lot more details, but we were just able to drive a cave like immersive museum in Fortaleza (Brasi( also with izzycast). * Full HD projectors on a Blackmagic Decklink quad (8 configurable sdi input or ouputs in Full hd). An all on a macbook pro m1 64 GB ram 4TB HD under sequoia

More to come !!!!

@Armando This was told me to me by Sean manton who imports Blackmagic in Canada. I am sure it wirks I tested it end used itfprofessionally for a while in big 7 cameras streamings and hybrid events.

@mark_m Sure, but I can assure you that wirh a consumer standard hdmi cable I can control in the cameras drom the atem software in my mac Iris, blackpoint, primary color wheels white balance and iso at least. I an even do macros to change all of this at once (needed in some shows where we passed from vey low light to full powe lits in 2 seconds, Si I am sure the HDMI cable passes this info, plus le timecide (it is the mester and the cameras become slaves) If you purchase atem OSC you shours be able tocontrol okll of this via isadora at minimum.

@jrhooker FOr starters I'd exclude projectors that are not controllable vie ethernet PJ linl and that don't have sdi input (although in the price range all of this should be standard

@josharoo4 SOrry not sure have understook I had the 8 outputs Plus I have a 4 hdmi blakmagic input card on the same sonnet ahd they live together and are recongnizerd by the desktop video software... You couldn't activate the 8 outputs ?

Thank you DusX,

You are correct. I now have the 'shapes' actor working properly. 

However, I am using a GLSL Shader to create the video I want to use as a transparent image. And I think you've also helped me there as well, as the shader does not have a transparent background. I will consult ChatGPT to see if it can help me add one. 

William

@josharoo4 said:

 Also, I should say that it also works great to output 8 separate video feeds. I had a video art project up that was using 8 outputs via the Decklink quad 2 and the Sonnet and then 4 outs from Izzy via thunderbolt to HDMI adapters for a total of 12 outputs. Ran very smooth and had almost everything at 1080p29.97. One issue I ran into was that I did need to reassign or toggle the Blackmagic outputs each time I restarted the machine. Went into the Stage Setup menu and just unclicked and reclicked the checkmark for each Blackmagic output each time. 

It does work with isadora on a mac and it works great. Ive done a few installs with this exact setup. I used the Usb-c Sonnet ePCI box and the Decklink quad 2. Works awesome. My limiting factor was that I could only use the 4 inputs that isadora allows so I set it up to take in 4 cams and to output over sdi to 4 output devices (projectors in my case). I did have to move over to qlab when I wanted to get all 8 inputs into the computer (a mac studio with the Sonnet box). 

@wjmackwood-0

I just ran a test on my M1 Mac mini, with Sonoma, and I had no issue with the recording.

I set Record Stage Settings, to use quicktime, Prores 4444. I then started stage recording, set a location, and it started to record. 

I then imported the file to test. It has a transparent background and plays well.

Note: the video feed to the projector actor must have a transparent background.. but this is what you would have be default simply connecting a shapes actor to it.

Hello Troikatronix team,

I'm trying to export a movie with a transparent layer, which I understand in need to use Pro Res 4444 to accomplish. I see that I can export video in the Pro Res 4444, but nothing gets exported in the video. Even just exporting a movie of a simple shape (using the shape actor) in Pro Res 4444 shows nothing in the exported video. 

Thoughts?

William (projection designer)

Isadora 4.0.9 (rosetta), Apple M1 Pro, Sequoia 15.6.1