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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 :)

HD SDI out for Redcine

G

Gregor Hagey

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Is there anyway to send an HD SDI signal out from Redcine? It would be great to be able to shoot a DSC chart on set and be able to use the chart with a waveform/vectorscope to do a basic colour correct before converting it to ProRes (or whichever file format is needed). Scratch can do this with an AJA card, but can Redcine?
 
isn't RedCine being developed by the RED team now so it should do things that Scratch does not.

There is no reason why RedCine shouldn't be able to use the AJA for outputting a image.
 
Scratch outputs from GPU to a monitor via the 4500SDI card - which is an expensive graphics card (I paid over $6K for that card) with an SDI output built into the card. There are no drivers for this card for the mac. This is not supported by REDCINE and I don't expect it ever will because it's a free application and the number of users that will go out and buy a $6K+ graphics card is a smaller group.

Apple's Motion and Color process on the GPU and can route the rendered frame from the frame buffer to a Kona card. You can't get real-time output - but I would LOVE the option have client supervised graded dailies from REDCINE - and you can't really do that without a broadcast monitor.

Currently, we use Scratch for commercials as they want to do supervised primary color grading on all their media. The issue with commercials is that many are VFX heavy and the turn-around is so fast - they want all their footage in the final format so as they cut they can do VFX and graphics. Most of the time, they will not accept the "offline" then "online" scenerio.

The only realistic thing here is to route the rendered frame off of the GPU and out the Kona - I would happily PAY for that. REDCINE PRO? BUt I am not holding my breath.
 
roryhinds said:
isn't RedCine being developed by the RED team now so it should do things that Scratch does not.

There is no reason why RedCine shouldn't be able to use the AJA for outputting a image.
Click to expand...

HD-SDI monitoring with AJA, Blackmagic etc would be trivial to implement for the manufacturers, both offer fully compliant quicktime framebuffers or desktop mirroring to HD-SDI or 2K via HD-SDI SMPTE 372M.

Once red allows avid, adobe, thomson, discreet, cineform, quantel, dvs, aja, blackmagic, iridas, filmlight etc to develop for the camera by documentating their fileformat and therefore giving these manufacturers a way to support the camera there hopefully will be an elegant postproduction pipeline.

Right now, the redcode workflow with its multi-operation system, multi-stop, multi-application pipeline (edit OSX FCP max 2K, export to uncompressed via redcine for VFX, CGI, 3D, titles, graphics or much faster with cineforms R3D2DPX, change application and OS to windows scratch, re-align uncompressed 4k graphics work) isn´t as elegant and streamlined as it should and could be.

edit: if the QT-wrappers would support aja / blackmagic QT monitoring, that also would be great. i however doubt it, as reds software r&d seems to be drowning in work and QA on this would be pretty time-consuming.
 
jieves said:
What about using a a Gefen DVI to HDSDI Scaler, which you can hook up to your existing video card?

http://www.gefen.com/kvm/product.jsp?prod_id=4208
Click to expand...

Interesting product. I don't understand how it's 10 bit when DVI is only 8 bit? My dream is to have a 10bit 1080p display daisy chained to a waveform/vectorscope monitoring Redcine in order to properly output ProRes files (or whatever the project demands). It just doesn't make sense to me to only have a Histogram to make critical output (r3d processing) decisions.
 
Well it's 8 bit RGB to 10 bit YPbPr, and it supports a custom gamma correction function. So you can probably get less banding than a straight 8-8 bit conversion.
 
off track hdmi

off track hdmi

This is a bit off track, but is there a future for HDMI in pro video? It's specs are better then hd sdi, but I don't really know of any pro products making use of it (Red excepted). It seems difficult enough to get a 1080p 10bit workflow, but 2.5k 16bit would make better use of what Red has to offer.
 
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