lightspace CMS

[Rob Ruffo]

One more thing to keep in mind. You haven't specified your probe and not every probe is even capable of assisting with output independent profiling. You'll need at least Hubble or something better. I wonder if the X-rite i1Display Pro works for OIP. It's great probe at great price. Cinespace 2.9 (I think) supports it now.
Correction:-)
I see, that you did specify the probe. You may be out of luck. Check with Lighspace, if they recommend using your probe for OIP.
The bummer part is Decklink used to be capable of displaying the desktop. In that case you didn't even need to bother with patches, but, I think, on version 6 they stopped providing this capability due, they say, to Apple changing something in OS:-(

X-Rite i1Display pro works, but must be generic OEM version (as sold by Spectralcal and others as OEM) not the one bundled with the X-Rite software. It is an amazing price/performance bit of kit.

[Rob Ruffo]

First, the i1 Display Pro does indeed work in Display (output) Independent Profiling (DIP) mode.

And you can also use the desktop display capability via Decklink using the Network interface Java App that comes with LightSpace.
This plays the LightSpace output directly on the desktop, so no sync issues, etc.

DIP mode is very easy - but the DI system time-line MUST play real-time guaranteed, with each patch being held exactly for the duration set within LightSpace.
If the Resolve system in use can't guarantee real-time playback it will never work - but as suggested try lower resolution patches. The colour value must be identical, but resolution is not an issue (unless profiling Plasmas when a small patch size IS required - NOT full screen!).

The sync between the time-line playback can be within +/- quarter to half a second (so don't have to play both exactly aligned), but must not slip from that initial sync value.

I have been trying to help Matthias, but an not a Resolve user, so was not sure how to accurately set a patch repeat to exactly 3 or 4 seconds...
In some systems I use an edl to build the time-line, but I've been told this doesn't work with Resolve???

Hope this helps.

Sorry, you are of course right, but even at 300p you can have a square patch of pretty exact required size within a black field.

[Steve Shaw]

Hi Rob, yep that's correct.

Actually you can use 8bit images (jpg for example if they work) as the colour patches used are all based on 8 bit numbers originally, but for export LightSpace CMS uses 10bit dpx as it's the most common file format for grading systems.

The most important part is colour accuracy, and the grading system being able to playback real-time accurately.

[Matthias Helldoppler]

Thank you all for your help!
The next thing we are trying is to use a DPX sequence with a smaller resolution.
Hopefully that will work out fine...

[Steve Shaw]

A quick update to say we have added smaller patch size export from LightSpace CMS for DIP mode profiling, and also you can now download a selection EDLs from the Light Illusion Website that will automatically build the correct time-line on Resolve, FCP, etc, for accurate profiling.

Hope this helps!

Steve

[jake blackstone]

A quick update to say we have added smaller patch size export from LightSpace CMS for DIP mode profiling, and also you can now download a selection EDLs from the Light Illusion Website that will automatically build the correct time-line on Resolve, FCP, etc, for accurate profiling.

Hope this helps!

Steve

If you're using EDL, then I don't see why it has to be only Resolve and FCP. Pretty much any other grading system can use it as well. Pretty smart move, if you'd like my opinion!

[teo]

I am having similar problems with i1pro, DaVinci and LightSpace... Few times I have started calibration (EDL in Resolve) and it all went OK for first hour, latter after 10h it was out of sync, and as far as I remember it it was the LightSpace in lack, DaVinci was still going on realtime. So the problem is in probe (as far as I get it from manual). I have tried 3s, 5s, 8s,... I think is just the problem in 1iPro, it just need time to measure. Am I right?

[Steve Shaw]

Hi Jake, you're correct, which is why it says 'etc'... The concept works with any edl capable system, although systems such as Scratch, Mistika, use direct plug-in connections so don't require the edl.

Teo, the problem you are having is the probe is reading slow, so you will need a longer duration edl - 10 or 12 seconds.

This is explained within the DIP mode descriptions on the Light Illusion website.