Daniel Frome
1
COW Coin
Forum Replies Created
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Carlos – Same software/rMBP specs as you: same problems as you. You are not alone.
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This is not an issue related to the Intuos tablets. This is a bug seen from 6.0 and is still in 6.5 also. I don’t know all the parameters that cause the issue, but generally I find I can usually avoid it by making sure that none of my Avid elements (timeline, bins, etc) are reaching the extreme bottom of either monitor. Make sure that all your Avid stuff is sitting a few pixels ABOVE the bottom edge, not touching the bottom. Also, save your workspace and bin layouts. If it happens, just invoke those saved layouts to correct.
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This is even more funny considering the source code for DNxHD is freely available, provided by Avid.
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For what it’s worth, I have a friend with a new (non-retina) macbook pro running Mountain Lion and MC 5.5.3. Although it’s not “qualified” it does work.
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I’ve heard that AMA does not support alpha channels. Don’t quote me on that, since I cannot remember where I read that. However, worth a try to properly import.
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Even if you get it to work (and it should) – be aware that MC6 on mac does not yet support vertical sync or expanded luminance range for computers monitors. This means your full screen image will be a far cry away from what an aja/etc device can output, in terms of quality.
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What did you transcode the ProRes files into?
I ask this because I’ve noticed a similar (but not identical) issue. I’m working with ProRes MXF files (perhaps same as what you’re doing?), and my exports out of MC also exhibit a color shift.
Even a quicktime reference file (from ProRes MXF) will exhibit a change.
The only fix is to transcode my sequence into DNxHD, at which time there is no color shift on my exports. For now you may have to do the same.
My guess on what’s going on: The export dialog box gives you the option to output RGB (which takes the 16-235 values and pushes them out to the 0-255 range) or 709 (which leaves everything as is). I think exporting a quicktime from ProRes MXF is always forcing the 16-235 values to be shifted, even if you select the latter option not to do that.
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Yeah you’re right – I’m going to test this more on Monday at work. Sorry about the misleading comment. We did some upgrades at work during this last week – and the performance is likely a factor in those upgrades rather than my (incorrect) assumption that it was the software.
Software speed wise, no – I never thought 6.0 was very fast in that regard. It was a constant complaint of mine that 5.5 was much snappier. They’ve gotten some of that back – mostly satisfied in that area.
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Hey Neil –
Whoops, looks like I worded that statement wrong. I meant that in general (in software mode) things are snappier. I’m surprised to hear you say that things aren’t working out with your blackmagic I/O. Sorry about making that sound misleading.
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I would recommend that you use the 1080p/29.97 project set, and transcode to DNx45.
I do not know if doing everything inside a 30i project will mess anything up later…