Saturday, August 27, 2016

[Avid-L2] When does Avid go into 10 bit mode in 4K renders?

 

OS 10.9.5 MacPro 12 core 3.33GHz 64GBRam MC 8.5.2
Working in a 4096x2160 project I noticed doing some blur tracking that when I use fluid tracker and set my tracking points I see the Yellow mode resolution up until I click the track button and the tracking starts.  At the point tracking commences the Image crispens up.  I assume it pops to 10 bit mode for tracking accuracy. 

To see what was going on I stayed in single monitor mode and blew up the image to see how the various timeline quality modes change the image displayed in the GUI.  Yellow is softest, then Yellow/Green sharper, Green Even Sharper but then 10 bit Green shows no change in the GUI screen resolution.  The NitrisDX output blanks out momentarily when switching to 10 bit mode.  I've have always assumed that was a sign of the output hardware switching to 10 bit from 8 bit.  Where I'm surprised is why the GUI doesn't show a sharpness change from Green to 10 bit Green.  Does display GUI max out at 8 bit?

My real concern is does Avid always jump to the highest quality mode when rendering even if I'm in 8 bit mode?  I know there are settings to determine quality and mode for time warp effects when rendering but what about all the other effects.  I wouldn't think things would render 10 bit if I was in timeline 8 bit mode but I'm not really sure.

Over the years I've seen all kinds of posts about various aspects of Avid that don't seem to stay in 10 bit mode with 10 bit sources etc...

Can anyone clue me in on the bottom line on video bit depth of rendering, file export and hardware output as it relates to the timeline quality settings?  I'm pretty sure the hardware output always goes to max quality on digital cut but I haven't paid attention to that in a while.
 
John Moore Barking Trout Productions Studio City, CA bigfish@pacbell.net

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Posted by: John Moore <bigfish@pacbell.net>
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this is the Avid-L2

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