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Alpha Problems at 2K
I’ve recently encountered weird problems with the way that alphas are calculated on my 2K renders. I am rendering text with a basic drop shadow / glow combination at 1828×1332 (flat) and 1828×1556 (scope) resolution as SGI sequences. This is a pretty standard thing that I’ve been doing for years.
These SGI sequences have gone to two different post houses for film-out. I assume that the operators there are working on an Inferno or similar. What they are describing is a “chunky, black” drop that does not resemble the NTSC reference. I have not seen this myself, but both operators gave same description.
When I pull my sequences back into AE to check them, they look perfect.
Nothing on my system has changed that I am aware of and I am using the same render output module that I’ve been using for the past two years without problem. The last two projects I have finished for film in the course of a month have had the same problem.
Any ideas?
Thanks!
DGI’m using:
Standard AE Drop Shadow + Standard AE Glow
Mac OS X V10.4.6 AE V6.5.0.97 QT V7.0.4 -
3 Replies
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Hmm … and you’re sure that nothing has changed at the post houses in the last month?
Or … can you try dropping the sequences into something other than AE? I don’t know … FCP?
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At first I attributed it to operator error, since we were finishing at a new place. But the last one turned up the same result at the post house we usually use.
Nothing I know of has changed on my system. We’ve even held off on the AE upgrade.
Hmmmm …
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Hi try rendering out with your alpha set to straight or possibly premultiplied with black.
That might do the trick
PeteFriday; April 14, 2006
1:18 AM
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