@n-jones said:
swing and roundabouts
I took your advice and tested the NDI stream on a MacBook Pro 10.15.7.
I still had some issues keeping the stream going but very excited to see a depth camera image going into Isadora wirelessly from my iPhone....
[edit] The NDI stream also worked in Mac OS 11.2.3 Big Sur on a MacBook Pro with NDI Virtual Input and Isadora NDI Watcher

Best Wishes
Russell
I don't know Resolume or Arkaos at all, could you please send me a simple Resolume file that sends NDI and fades the NDI feed in and out so that I can replicate the issue and log it?
You may be right about Isadora handling the alpha channel in a different way, and once we have a way to reproduce that in hand I can log it as a bug and give it to Mark to update how Isadora handles incoming NDI feeds.
I suspect that I just need the equivalent of what I've built below in Isadora, but created in Resolume (something that's sending frames and changing the fade of the NDI feed it is sending out):
There are 3 NDI apps I know of for iPhone:
The official one from NewTek called NewTek NDI Camera for $19.99.
One from Austria called NDICam the cheapest one $ 9.99
And the last one called JustWifiCam for $11.99, it says for free but the free version is with a watermark. At least you can test it before you purchase it.
I guess the NDI freeframe is only for Windows, for Mac you need for example NDISyphon https://docs.vidvox.net/freebi... or you can use OBS with the NDI sources and syphon inject addon.
Best Michel
Hi, those are great solutions and I didn't realise Isadora could do that. I have some ideas regarding linking multiple eyes together to lock on to the eye shape and then put a cluedo cutout over with a gaussian mask. Have attempted a couple of versions attached sans eyes prior to this. Obv foreground faces not always more luminant than background and a variety of other problems inherent in a non machine vision approach. ndi fakebg.izzndi fakebg2.izz
Ultimately for our application we're going for zero user requirements so trying to avoid asking the user to do anything. However, it could be possible to gamify this step in the interim as an onboarding... Thanks!
@juriaan , sorry but i don't get it ... :(
to use NDI protocol i need to convert my video signal, no ? that what does spark, and the NewTek NDI camera application ?does different app like sienna, media looks do the same ?
than i need a receiver app to get the NDI signal from the internet, and to transmit it to syphon (i'm running on mac) i need NDI to Spyhon but for some reasone it's not available anymore :(
does syphoner is good enough to transmit the screen of the receiver app ?
and why a blackmagic capture card ?
do i understand it wrong ?
if you can help me understand it ...
and what is the cheapest way to have a minimum delay video signal, comming from another country, and running on mac OS ?
@plem just to add that if it is only extension and 1280*720 is OK, I would go with SDI, the blackmagic micro convertors are €45 each way, and a lossless conversion to SDI and back. SDI cables (paricularly those capable of 720p) as cheap and easy to repair on site if need be. I would definitely use a hardware conversion for signal extension, things like getting an EDID handshake and not doing any frame rate or size conversion will be more transparent than if you use NDI. You can also flood your network and overwhelm a mid range router or switch with enough NDI.
There are also a lot of cheaper HDbaset options you can look for as well. Michel linked to a good system though.
Magewell do have an NDI to HDMI out now - Magewell Pro Convert for NDI® to HDMI.
Fred
I am planning an installation with 3 Blackmagic Micro Cinema cameras over NDI and control of the manual Laowa Cinema Zero-D lenses via servos based on OSC or PTZ over NDI.
I think if I manage to do everything as I imagine it, then I will do a happy dance ;-)
The baby is once conceived in my head, now it's time to implement it.
NDI/OSC have the huge advantage that they are directly available from Izzy and you can do all the fun with it.
Also, it's not depending on a special Camera brand, you can use every cam with HDMI/SDI and manual lenses.
The only pain ist the price for NDI transcoders - thinking about building them self with Newtek SDK like Dicaffeine do this on a Orange Pi 5...
But the way is still long... have a nice holiday,
Tom
For the handful of you into NDI (and the rest of you all who should be), NewTek just released it's Spark HDMI/SDI to NDI boxes and PTZ Camera.
The spark comes in HDMI and SDI flavors, and will connect that source as an NDI source on either a wired or wireless network. They're rather cheaper than bird-dog's option. Unfortunately no 4K, but I may be the only one that cares about that.
The PTZ is will output directly to a network as an NDI source (or via HDMI or SDI), and is controllable (pan/tilt/zoom) via that network as well. It also uses Power-over-Ethernet, which is surprising and really cool.
Hi,
I am testing with NDI signal. In Isadora, I connect a player to a Virtual Stage (1920x1080) and select NDI output in the Stage Setup and route it to MadMapper. Here the NDI input is not displayed correctly, rather it appears with another ratio (1920x540). I have also tried in NDISyphon app and I get the same result. The difference is that in NDISyphon app if I check "Receive like RGB?" displayed correctly. I understand that this is a matter of the color space in which the NDI signal is transported but the problem is that, for example, in Madmapper I do not have the possibility of receiving the input as RGB.
Best


Javi