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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

redBOXX Introduced at NAB

Just a heads up to all - we purchased a Scratch system at NAB. We're building it as a flypack and it will be available, with a colorist, to work either on location or at your post house. It will be a complete system including archiving to LTO-3A and HD tape layoff in several formats.

You will be able to shoot, have instant dailies in your choice of formats, edit on your existing system, and conform for film or broadcast out.
 
I have some a Question:

The RedBOXX is able to playback .R3D 4k at 1920x1080 and 2K in Real Time using Scratch Cine and doing the 1st light or apply LUT etc...

1)This Playback it's Through the SDI of the Nvidia Quadro Card?Or does it have another SDI Card?
2)What About The Timecode?
3)It can also Downconvert in Realtime to a Digibeta Deck?
5)Only One ignal at the Time?
4)what About the possibility to have a SD Analog signal out?(for DVD recorder for example?)

Thanks!


Gabriele
 
Gabriele Turchi said:
I have some a Question:

The RedBOXX is able to playback .R3D 4k at 1920x1080 and 2K in Real Time using Scratch Cine and doing the 1st light or apply LUT etc...

1)This Playback it's Through the SDI of the Nvidia Quadro Card?Or does it have another SDI Card?
2)What About The Timecode?
3)It can also Downconvert in Realtime to a Digibeta Deck?
5)Only One ignal at the Time?
4)what About the possibility to have a SD Analog signal out?(for DVD recorder for example?)

Thanks!


Gabriele
Click to expand...


Hi Gabriele,

Scratch uses the Nvidia Quadro SDI to output HD-SDI. There is no other option for getting Scratch projects realtime out of the redBOXX system.

Timecode is sync'd to the output and sent out via an RS-232 serial connection on the back of the system. We include an RS-422 adapter cable so that you can control a VTR -and send and receive timecode.

The Quadro SDI card & Scratch can downconvert and output to SD. You can also use your deck's built-in downconverter if it has one - most do. **As has been discussed in these forums, unless you want to deal with possible "oversampling artifacts" (jaggies) there are some additional filtering concerns you need to consider if you want to go from 2K or 4K to SD in one stage **.

If you are running "single link" mode HD-SDI from the back of the Quadro SDI card, then you can "clone" the primary output -and make this available on the second output as well. But If you are using the system in "dual link" mode (for 4:4:4 RGB), then both output jacks are required to send a single signal to the display or VTR.

For quick and easy analog out to a DVD recorder, again, you might again consider your VTR as the "converter" for this if your deck supports analog.
Otherwise, there are relatively inexpensive converter boxes. Look into Aja stuff. Here's one that converts HD-SDI to any analog HD or SD format.
http://www.aja.com/html/products_converters_HD10MD3.html


Feel free to contact me off-forum to discuss any other techincal aspects of the redBOXX solution.


Cheers,

Adam
BOXXlabs
512-225-6329
 
Thanks Adam

very complete answer,
Just a couple more:

1)When you say oversampling artifacts in downconversion,you mean using the others solutions (like REDCine , RED Alert etc...)or even using Scratch Cine ?

2)What Happen uphrading Scratch Cine to the Full Version of Scratch for finishing? I mean Is the RedBOXX Powerful enough to work with it in real time using mask etc...?


Thanks


Gabriele
 
Any of the tools that can be used for downconverting can have difficulty going from 4K to SD. This includes Scratch.

But there are a few procedures that can be used to produce a high-quality SD dub out of Scratch Cine. There is a current thread regarding this very issue:
http://www.reduser.net/forum/showthread.php?t=13699


redBOXX has plenty of power for supporting multiple secondary cc layers, mattes/vignettes, etc - the full Scratch realtime toolset.
However, If you plan to upgrade to a full Scratch license and plan to be playing uncompressed media types (DPX, cineon, etc.), then yo will need to make sure you have enough storage bandwidth connected to the unit.

If you have a Fibrechannel SAN and can afford the bandwidth for this extra system, then just use that.

If you want to use direct-attached storage, then you can order the redBOXX with a RAID controller and use an external ESATA array -or order it with a fibre channel HBA and use and external FC RAID array.

The other option is to buy the redBOXX in the "RTX" variant. This configuration includes a larger chassis and an internal RAID5 array which can support plenty of disc performance for 2K or 4K uncompressed frames- even stereo playback in HD/2K.


Adam
 
Thanks adam,

may i ask whats the best procedure to go from 4k to Sd using Scratch Cine and the RedBOXX?
i mean ,a good result it can be done in realtime using Scratch?

Thanks


G
 
Regarding 4K->SD, I can't add any more to the discussion than has been commented thus far:

http://www.reduser.net/forum/showthread.php?t=13699

You might want to play out of Scratch in HD @ 1080P/23.97. Then do your POST in 1080P/23.97.

Then do your 2:3 pulldown to 29.98 when you layoff to tape from your NLE -and do the HD-to-SD downconversion through your HD deck at the same time.

There are certainly other ways to get there as well...I don't know which workflow(s) would work best for you as everyone has different resources and needs.
 
Sure i think there is many solution,
i was just wandering how and if i can have 4k--->SD from Scratch in Realtime....the answer is i need another """tool""" after the 4k--->Hd from scratch...right?

Thanks


G
 
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